This document summarizes a study on seismic analysis of telecommunication towers using viscous dampers. The study models a 56m tall 4-legged self-supporting tower both with and without dampers using SAP2000 software. Various analyses including static, response spectrum, and time history are conducted for different soil types and seismic zones. Results show that using dampers reduces modal time periods and increases modal frequencies. It also reduces base shear, joint displacements, peak displacements and accelerations compared to the tower without dampers. The study concludes that dampers help control the response of towers during earthquakes.
IRJET- Design and Testing of Savonius Water Turbine for Parshall FlumeIRJET Journal
This document analyzes the effect of bracing patterns on the structural stability of tall rectangular-shaped buildings under wind loads. Four 40-story reinforced concrete buildings with a height of 120 meters and a rectangular shape were modeled with different bracing patterns: ordinary moment frame, X-bracing, V-bracing, and inverted V-bracing. The buildings were analyzed using STAAD.Pro software and loaded based on Indian codes for dead, live, and wind loads. Results show that the X-braced building had the lowest displacements and joint rotations, making it the most structurally stable configuration, followed by V-bracing. The ordinary moment frame and inverted V-braced buildings performed the worst under wind
IRJET- Analysis of G+15 Building Different Seismic Zones of IndiaIRJET Journal
This document analyzes the behavior of a G+15 reinforced concrete building model subjected to seismic zones III, IV, and V using ETABS software. Key parameters like base shear, story drift, displacement, and stiffness are compared between the models. The results show that as seismicity increases, base shear, displacements, and drifts all increase while stiffness decreases. The maximum responses generally occur at the base or middle heights. It was concluded that structural engineers must account for higher seismic forces in more intense zones to safely design tall buildings.
IRJET- Comparative Study of RC Building with Different Bracing System and Fri...IRJET Journal
This document presents a comparative study of the structural performance of a 10-story reinforced concrete building with different bracing systems and friction dampers under lateral loading. Various bracing systems studied include crossed, V-type, and eccentric bracing. The building is also analyzed with an X-bracing system along with friction dampers. Results show that the building with X-bracing and friction dampers experienced a 63% reduction in displacement and 70% reduction in story drift compared to the building with only X-bracing. Additionally, the base shear increased by 20% with the addition of friction dampers. In conclusion, the building with X-bracing and friction dampers performed better in terms of reduced displacement, drift,
This document presents a stiffness-based design methodology for determining preliminary member sizing of reinforced concrete diagrid structures for tall buildings. A 36-story building with a regular floor plan of 36m x 36m is modeled using ETABS software. Both a conventional reinforced concrete structure and a perimeter diagrid structure are analyzed and their performance is compared. Results show the diagrid structure has less top story displacement and drift, indicating it is stiffer. It also has less time period, meaning it is more stable during seismic events. While the diagrid structure requires slightly more concrete, it uses 37% less steel. Overall, the diagrid structure is found to be more economical and efficient for resisting lateral loads in tall buildings.
IRJET - Comparison of Seismic Behavior of Multi-Storey Structure with Com...IRJET Journal
This document compares the seismic behavior of multi-storey structures with composite columns and reinforced concrete columns. Three models are analyzed: a normal reinforced concrete building, a building with composite tube sections in the columns, and a building with I-sections and rebar in the columns. The models are analyzed using ETABS software and time history data from a 2009 earthquake. Parameters like base shear, storey drift, displacement, stiffness, and overturning moment are compared. The results show that the reinforced concrete model performs poorer in terms of base shear, drift, displacement, and stiffness compared to the composite column models. The I-section column model performs best by having the lowest base shear and drift values.
IRJET- Effect of Core Wall on Torsional and Dynamic Behaviour of High –Rise F...IRJET Journal
This document discusses the effect of core walls on the torsional and dynamic behavior of high-rise flat slab structures. It analyzes 4 models of a 240m tall building with different structural systems using equivalent static and time history dynamic analysis. The models include a beam-slab system, flat slab system without a core wall, and flat slab systems with core walls in different locations. Results show that core walls can induce additional torsional effects and affect displacement, drift and vibration characteristics, especially with increased floor height. Therefore, additional structural elements like outriggers are necessary to limit responses in tall flat slab buildings.
IRJET- Seismic Behavior of Irregular Building with and without Floating ColumnIRJET Journal
This document analyzes the seismic behavior of irregular buildings with and without floating columns. It models and analyzes a 11-story building with no floating columns (Model 1), one with floating columns around the periphery (Model 2), and one with alternating floor floating columns (Model 3). The analysis finds that Model 3 experiences the greatest displacements and inter-story drifts, indicating reduced stiffness and lateral resistance. Model 1 experiences the lowest displacements and is most stable. The presence of floating columns, particularly alternating floor ones, increases seismic vulnerability by creating soft stories and reducing the building's ability to resist lateral loads.
Performance of RC Frame Structure with Floating Column and Soft Storey in Dif...IRJET Journal
This document presents the results of a pushover analysis conducted on four reinforced concrete (RC) frame building models to study the effects of a floating column and soft story in different earthquake zones. The models included regular buildings without and with a floating column, and irregular buildings without and with a floating column. The pushover analysis was performed according to Indian standards for earthquake loading. The analysis found that buildings with a floating column experienced higher displacements, drifts, and lower base shears compared to buildings without a floating column. Buildings in Zone V, which has higher seismicity, experienced higher displacements and drifts than those in Zone II. The first story of buildings with a soft story experienced drifts 45-50% greater than
IRJET- Design and Testing of Savonius Water Turbine for Parshall FlumeIRJET Journal
This document analyzes the effect of bracing patterns on the structural stability of tall rectangular-shaped buildings under wind loads. Four 40-story reinforced concrete buildings with a height of 120 meters and a rectangular shape were modeled with different bracing patterns: ordinary moment frame, X-bracing, V-bracing, and inverted V-bracing. The buildings were analyzed using STAAD.Pro software and loaded based on Indian codes for dead, live, and wind loads. Results show that the X-braced building had the lowest displacements and joint rotations, making it the most structurally stable configuration, followed by V-bracing. The ordinary moment frame and inverted V-braced buildings performed the worst under wind
IRJET- Analysis of G+15 Building Different Seismic Zones of IndiaIRJET Journal
This document analyzes the behavior of a G+15 reinforced concrete building model subjected to seismic zones III, IV, and V using ETABS software. Key parameters like base shear, story drift, displacement, and stiffness are compared between the models. The results show that as seismicity increases, base shear, displacements, and drifts all increase while stiffness decreases. The maximum responses generally occur at the base or middle heights. It was concluded that structural engineers must account for higher seismic forces in more intense zones to safely design tall buildings.
IRJET- Comparative Study of RC Building with Different Bracing System and Fri...IRJET Journal
This document presents a comparative study of the structural performance of a 10-story reinforced concrete building with different bracing systems and friction dampers under lateral loading. Various bracing systems studied include crossed, V-type, and eccentric bracing. The building is also analyzed with an X-bracing system along with friction dampers. Results show that the building with X-bracing and friction dampers experienced a 63% reduction in displacement and 70% reduction in story drift compared to the building with only X-bracing. Additionally, the base shear increased by 20% with the addition of friction dampers. In conclusion, the building with X-bracing and friction dampers performed better in terms of reduced displacement, drift,
This document presents a stiffness-based design methodology for determining preliminary member sizing of reinforced concrete diagrid structures for tall buildings. A 36-story building with a regular floor plan of 36m x 36m is modeled using ETABS software. Both a conventional reinforced concrete structure and a perimeter diagrid structure are analyzed and their performance is compared. Results show the diagrid structure has less top story displacement and drift, indicating it is stiffer. It also has less time period, meaning it is more stable during seismic events. While the diagrid structure requires slightly more concrete, it uses 37% less steel. Overall, the diagrid structure is found to be more economical and efficient for resisting lateral loads in tall buildings.
IRJET - Comparison of Seismic Behavior of Multi-Storey Structure with Com...IRJET Journal
This document compares the seismic behavior of multi-storey structures with composite columns and reinforced concrete columns. Three models are analyzed: a normal reinforced concrete building, a building with composite tube sections in the columns, and a building with I-sections and rebar in the columns. The models are analyzed using ETABS software and time history data from a 2009 earthquake. Parameters like base shear, storey drift, displacement, stiffness, and overturning moment are compared. The results show that the reinforced concrete model performs poorer in terms of base shear, drift, displacement, and stiffness compared to the composite column models. The I-section column model performs best by having the lowest base shear and drift values.
IRJET- Effect of Core Wall on Torsional and Dynamic Behaviour of High –Rise F...IRJET Journal
This document discusses the effect of core walls on the torsional and dynamic behavior of high-rise flat slab structures. It analyzes 4 models of a 240m tall building with different structural systems using equivalent static and time history dynamic analysis. The models include a beam-slab system, flat slab system without a core wall, and flat slab systems with core walls in different locations. Results show that core walls can induce additional torsional effects and affect displacement, drift and vibration characteristics, especially with increased floor height. Therefore, additional structural elements like outriggers are necessary to limit responses in tall flat slab buildings.
IRJET- Seismic Behavior of Irregular Building with and without Floating ColumnIRJET Journal
This document analyzes the seismic behavior of irregular buildings with and without floating columns. It models and analyzes a 11-story building with no floating columns (Model 1), one with floating columns around the periphery (Model 2), and one with alternating floor floating columns (Model 3). The analysis finds that Model 3 experiences the greatest displacements and inter-story drifts, indicating reduced stiffness and lateral resistance. Model 1 experiences the lowest displacements and is most stable. The presence of floating columns, particularly alternating floor ones, increases seismic vulnerability by creating soft stories and reducing the building's ability to resist lateral loads.
Performance of RC Frame Structure with Floating Column and Soft Storey in Dif...IRJET Journal
This document presents the results of a pushover analysis conducted on four reinforced concrete (RC) frame building models to study the effects of a floating column and soft story in different earthquake zones. The models included regular buildings without and with a floating column, and irregular buildings without and with a floating column. The pushover analysis was performed according to Indian standards for earthquake loading. The analysis found that buildings with a floating column experienced higher displacements, drifts, and lower base shears compared to buildings without a floating column. Buildings in Zone V, which has higher seismicity, experienced higher displacements and drifts than those in Zone II. The first story of buildings with a soft story experienced drifts 45-50% greater than
IRJET- Analysis and Design of High-Rise RC Structure in Different Seismic ZonesIRJET Journal
This document analyzes and compares the design of a 15-story reinforced concrete structure with an H-shape in different seismic zones of India. Two models are considered - one with connecting beams between the wings of the H-shape and one without. Both models are modeled and analyzed in STAAD Pro software. The results, including shear forces, bending moments, deflections, and steel reinforcement percentages, are compared for the two models across zones II through V. The analysis shows marginal differences between the two models, with the model without connecting beams performing slightly worse in some parameters. The document concludes that connecting beams have little impact on the structural behavior but can improve construction.
IRJET- Seismic Analysis and Design of Multistorey Building in Different Seism...IRJET Journal
This document discusses the seismic analysis and design of a multi-storey building (G+10) located in different seismic zones (II-V) in India using the ETABS software. Static analysis was performed to calculate lateral forces, displacements, storey drifts and other parameters. The results show that as the seismic zone increases from II to V, the base shear, displacements and storey drifts also increase significantly. For example, the base shear increases by over 27% and displacements increase by over 27% when going from zone II to V. The study aims to understand how seismic performance of a building varies across zones and ensure the structural safety of the building through static analysis as per Indian codes.
IRJET- Comparative Study of Performance of 60 Storey Steel Buildings with...IRJET Journal
This document presents a comparative study of the performance of 60-storey steel buildings with exoskeleton, framed tube, and conventional structural systems under dynamic loading. Three structural models were created and analyzed using ETABS software. The models were subjected to dynamic earthquake and wind loading based on response spectrum and gust factor methods respectively. Results showed that the exoskeleton system performed best in terms of lowest displacement, drift, and shear values compared to the other systems. The framed tube system also performed better than the conventional system. The exoskeleton system was found to be the stiffest system and most effective in resisting lateral loads from earthquakes and wind.
Response of Segmental Bridge when Subjected to Seismic ExcitationIRJET Journal
This document summarizes research analyzing the response of a segmental bridge subjected to seismic excitation. Key points:
- The designed segmental bridge was 8.8m wide, 2m deep and 31m long with M50 grade concrete.
- The bridge's response was analyzed for different seismic zones in India using various methods like the Indian code IS 1893(Part 1) 2002, force-based design and displacement-based design.
- Results like base shear, bending moment, stress and displacement were calculated and compared for different soil types including rock, gravel and silt/clay.
- Response was also analyzed for actual earthquake occurrences by calculating parameters like earthquake force, time period, frequency, displacement and
IRJET- Design and Fabrication of Stair Climbing TrolleyIRJET Journal
This document describes the design and fabrication of a stair climbing trolley. The trolley is equipped with tri-star wheels that allow it to transport loads up and down stairs. Mild steel is used for the trolley body and stainless steel is used for the tri-star wheel components. The trolley was manufactured using processes like gas cutting, pipe bending, plasma cutting and arc welding. Calculations were performed to determine the required pipe diameter to withstand the anticipated loads. The final trolley was able to transport loads up stairs with less effort than carrying items manually.
IRJET- Study of Combined Action of Coupled Tuned Liquid and Mass Damper on Ea...IRJET Journal
This document summarizes a study on the combined effects of a tuned liquid damper (TLD) and tuned mass damper (TMD) unit in reducing the earthquake response of buildings. The researchers first conducted experiments on a 3-story building model to analyze its natural frequency without and with the damper unit. They found that the natural frequency decreased from 3.25Hz to 1.65Hz with the addition of the damper. They then modeled the building and damper unit in SAP2000 software and obtained similar natural frequency results, validating the numerical model. Further analysis will be carried out in SAP2000 to evaluate the earthquake performance of different building configurations with the TLD-TMD unit using modal and time history
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IRJET- Analysis of Irregular Structure under Linear Time HistoryIRJET Journal
This document presents an analysis of the response of irregular structures under linear time history ground motions. The study examines the effects of low, mid, and high frequency ground motion contents on reinforced concrete buildings. Linear time history analyses are performed using ETABS 2016 software on regular and irregular building models. Results for each building model are compared based on story displacement, velocity, acceleration, and base shear in response to Bhuj, India and El Centro, United States earthquake records. The results show that low frequency ground motions have a more significant effect on building response than high frequency motions. Irregular buildings also exhibited less satisfactory performance than regular structures.
Designing a 2 d rz venture model for neutronic analysis of the nigeria resear...Alexander Decker
This document describes the development of a 2D RZ VENTURE model for neutronic analysis of the Nigeria Research Reactor-1 (NIRR-1). Key regions of the reactor core were homogenized in the model. Neutronic calculations using the model generated parameters like excess reactivity, control rod worth, and shutdown margin that agreed well with experimental results and other calculations. The model provides an excellent simulation of NIRR-1 and will be useful for future analysis and developing a model to convert NIRR-1 from HEU to LEU fuel.
IRJET- Comparative Study on CFST and Steel Diagrid Structural System for High...IRJET Journal
This study compares the performance of composite cross-sectional steel tube (CFST) diagrid and steel diagrid structural systems for high-rise buildings under seismic loading. 12 building models of G+42 and G+30 storeys were analyzed using ETABS software. The buildings were located in different seismic zones with medium soil. Results showed that steel diagrid structures performed better than CFST diagrid structures, with steel diagrid exhibiting lower storey displacements and drifts. Diagrid structures in general were found to effectively distribute lateral loads and reduce the impact of dynamic loading on high-rise buildings.
IRJET- Earthquake Analysis of Tall Structure Mounted with Telecommunicati...IRJET Journal
This document analyzes the effect of installing telecommunication towers on tall buildings during earthquakes. It models a 10-story commercial building in Mumbai with towers placed in 5 different roof locations and analyzes displacement, storey shear, drift and twisting moments. Location 1, with the tower at the corner facing the seismic direction, showed the most adverse effects with increases in displacement, drift and twisting moment of over 25% compared to other locations. Location 5, with the tower at the building center, performed best with reductions in all response parameters of around 25%. The study aims to determine the ideal and critical locations for roof mounted towers to enhance structural stability during earthquakes.
Performance Study of High Rise Building with Diagrid System Under Dynamic Loa...IRJET Journal
This document summarizes a study on the performance of high-rise buildings with diagrid structural systems under dynamic loading. Diagrid structures consist of triangulated beams arranged in a unique geometric pattern that provides structural efficiency. The study models a 30-story building with and without diagrid bracing in ETABS software and analyzes storey displacement, drift and design base shear under wind, earthquake and response spectrum loading. Models are analyzed with diagrid diagonals at angles between 45-81 degrees. Results show diagrid systems perform better in reducing displacement and drift, with optimal performance between 63-75 degrees.
IRJET- Simulation, Design and Implementation of Magnetic Field Gradient Coils...IRJET Journal
This document describes the simulation, design, and implementation of magnetic field gradient coils for Earth's field MRI. The authors used MATLAB to simulate Maxwell coils for the z-gradient and Golay coils for the x- and y-gradients. They then built physical versions of the coils using copper wire. Measurements showed the Maxwell coils generated an 11.67 mT/m gradient and the Golay coils generated a 5 mT/m gradient. Finally, the gradient coils were integrated with an existing Earth's field NMR system to allow for spatial encoding of MRI signals within a smaller field of view.
IRJET- Seismic Analysis of a Multi-Storey Building using Steel Braced FramesIRJET Journal
This document summarizes a study that analyzes the seismic performance of a 15-story reinforced concrete building with different bracing systems. The building was modeled and analyzed using ETABS software. Time history analysis was performed to evaluate storey drift, displacement, fundamental period, and stiffness for the building with X, V, inverted V bracing and without bracing. The results showed that braced buildings performed better during seismic activity than unbraced. Among the braced systems, X bracing was most effective at reducing responses like storey drift during earthquakes.
IRJET- Analysis and Design of Multi Storey Building Subjected to Seismic Load...IRJET Journal
This document analyzes and designs a 3-storey building located in Gangavati, Karnataka, India and subjected to seismic zone 2 loading. The building is modeled and analyzed using ETABS software. Results like storey displacement, storey shear, and storey drift are obtained and compared for the seismic zone. The maximum storey displacement is 13.7mm in the X-direction and 12.5mm in the Y-direction. Manual analysis using Kani's method is also performed to verify the ETABS results.
Analysis of a RCC frame Tall Structure using Staad Pro on Different Seismic Z...IRJET Journal
This document analyzes the seismic behavior of a 10-story reinforced concrete frame structure located on sloping ground with different slopes and soil types. The structure is modeled in STAAD Pro and analyzed using the response spectrum method for different seismic zones. Results show that displacement, shear force, and bending moment increase as the slope and seismic zone increase. Displacement also increases as the soil type changes from hard to soft. The study concludes that ground slope and soil type have a significant impact on the seismic response of the structure.
IRJET- Comparative Analysis of NBC 105:1994 and IS 1893:2016 Seismic Codes wi...IRJET Journal
This document compares the seismic analysis and design results of a G+21 reinforced concrete frame building according to the NBC 105:1994 code of Nepal and the IS 1893:2016 code of India. Nine models of the building are analyzed for different soil types using ETABS software. The results show that for soil types I and II, the IS code yields higher base shear, displacements, and inter-story drift ratios compared to the NBC code. However, for soil type III the NBC code results in higher base shear, displacements, and drift ratios. Both codes are also compared in terms of design load combinations, with the IS code having higher load factors leading to increased reinforcement demands compared to the NBC code.
Effects of Providing Shear wall and Bracing to Seismic Performance of Concret...IRJET Journal
This document discusses the effects of providing shear walls and bracing on the seismic performance of concrete buildings through pushover analysis. Three models are considered: ordinary moment resisting frame (OMRF) without lateral resistance, braced moment resisting frame (BMRF) with bracing, and wall moment resisting frame (WMRF) with shear walls.
Pushover analysis is performed on the models using software to obtain base shear, storey displacement, and performance point. Results show that providing shear walls and bracing increases base shear at the performance point, reduces storey displacement and drift, and achieves a higher performance state. Global stiffness is also increased. Plastic hinges form more uniformly across storeys in braced and
IRJET- Seismic Vulnerability of RCC Building under Irregular Configuration in...IRJET Journal
This document summarizes a study on the seismic vulnerability of irregularly configured reinforced concrete (RC) buildings in different seismic zones. 3D models of regular, C-shaped, and L-shaped buildings were created and analyzed using ETABS software. The models were subjected to gravity and earthquake loads based on Indian standards and their displacement, drift, and shear responses were compared. The results showed that the L-shaped building generally performed better than the other configurations, with less displacement and drift across zones. The study concluded the L-shaped building is the safest option and most resistant to seismic loads compared to regular and C-shaped buildings.
Effect of Oblique Column and Viscous Damper on Podium Structure Using EtabsIRJET Journal
This document analyzes the effect of using oblique columns and viscous dampers on the seismic performance of podium structures using the ETABS software. Five building models are considered - a vertical column building without a podium, an oblique column building without a podium, a vertical column building with a podium, an oblique column building with a podium, and an oblique column building with a podium and damper. Response spectrum analysis and time history analysis are performed on the models. The results show that the oblique column models experience less displacement, drift, and overturning moments compared to the vertical column models, and the model with oblique columns, a podium, and damper performs the best in
Comparative Study on Seismic Behavior of Different Shapes of RC Structure wit...IRJET Journal
This document presents a comparative study on the seismic behavior of different shaped reinforced concrete (RC) structures equipped with viscous dampers. Three models are analyzed: H, T, and L shapes. The models are analyzed using ETABS software according to Indian seismic code provisions. Parameters like base shear, natural period, storey stiffness, drift, overturning moment, and displacement are compared. Material and geometric properties are kept the same. All models are located in seismic zone 4 and subjected to dynamic analysis using the El Centro time history record. Results show that the H-shaped building experiences the highest base shear, while viscous dampers help reduce storey displacement in the structures.
Comparison of Seismic Resistance of Moment Resisting RC Building using Shear ...IRJET Journal
This study compares the seismic resistance of a G+9 reinforced concrete building using shear walls and bracing systems. Six models are analyzed: a bare frame, three with shear walls in different locations, and three with X-bracing in different locations. Response spectrum analysis is used to evaluate the models based on base shear, storey displacement, and inter-storey drift. Both shear walls and bracing increase the building's stiffness and strength compared to the bare frame. Shear walls perform better than bracing in reducing displacements and drifts. Placing the lateral systems at the building corners provides the best seismic performance with a small increase in dead load. Shear walls are also more cost-effective than bracing.
IRJET- Analysis and Design of High-Rise RC Structure in Different Seismic ZonesIRJET Journal
This document analyzes and compares the design of a 15-story reinforced concrete structure with an H-shape in different seismic zones of India. Two models are considered - one with connecting beams between the wings of the H-shape and one without. Both models are modeled and analyzed in STAAD Pro software. The results, including shear forces, bending moments, deflections, and steel reinforcement percentages, are compared for the two models across zones II through V. The analysis shows marginal differences between the two models, with the model without connecting beams performing slightly worse in some parameters. The document concludes that connecting beams have little impact on the structural behavior but can improve construction.
IRJET- Seismic Analysis and Design of Multistorey Building in Different Seism...IRJET Journal
This document discusses the seismic analysis and design of a multi-storey building (G+10) located in different seismic zones (II-V) in India using the ETABS software. Static analysis was performed to calculate lateral forces, displacements, storey drifts and other parameters. The results show that as the seismic zone increases from II to V, the base shear, displacements and storey drifts also increase significantly. For example, the base shear increases by over 27% and displacements increase by over 27% when going from zone II to V. The study aims to understand how seismic performance of a building varies across zones and ensure the structural safety of the building through static analysis as per Indian codes.
IRJET- Comparative Study of Performance of 60 Storey Steel Buildings with...IRJET Journal
This document presents a comparative study of the performance of 60-storey steel buildings with exoskeleton, framed tube, and conventional structural systems under dynamic loading. Three structural models were created and analyzed using ETABS software. The models were subjected to dynamic earthquake and wind loading based on response spectrum and gust factor methods respectively. Results showed that the exoskeleton system performed best in terms of lowest displacement, drift, and shear values compared to the other systems. The framed tube system also performed better than the conventional system. The exoskeleton system was found to be the stiffest system and most effective in resisting lateral loads from earthquakes and wind.
Response of Segmental Bridge when Subjected to Seismic ExcitationIRJET Journal
This document summarizes research analyzing the response of a segmental bridge subjected to seismic excitation. Key points:
- The designed segmental bridge was 8.8m wide, 2m deep and 31m long with M50 grade concrete.
- The bridge's response was analyzed for different seismic zones in India using various methods like the Indian code IS 1893(Part 1) 2002, force-based design and displacement-based design.
- Results like base shear, bending moment, stress and displacement were calculated and compared for different soil types including rock, gravel and silt/clay.
- Response was also analyzed for actual earthquake occurrences by calculating parameters like earthquake force, time period, frequency, displacement and
IRJET- Design and Fabrication of Stair Climbing TrolleyIRJET Journal
This document describes the design and fabrication of a stair climbing trolley. The trolley is equipped with tri-star wheels that allow it to transport loads up and down stairs. Mild steel is used for the trolley body and stainless steel is used for the tri-star wheel components. The trolley was manufactured using processes like gas cutting, pipe bending, plasma cutting and arc welding. Calculations were performed to determine the required pipe diameter to withstand the anticipated loads. The final trolley was able to transport loads up stairs with less effort than carrying items manually.
IRJET- Study of Combined Action of Coupled Tuned Liquid and Mass Damper on Ea...IRJET Journal
This document summarizes a study on the combined effects of a tuned liquid damper (TLD) and tuned mass damper (TMD) unit in reducing the earthquake response of buildings. The researchers first conducted experiments on a 3-story building model to analyze its natural frequency without and with the damper unit. They found that the natural frequency decreased from 3.25Hz to 1.65Hz with the addition of the damper. They then modeled the building and damper unit in SAP2000 software and obtained similar natural frequency results, validating the numerical model. Further analysis will be carried out in SAP2000 to evaluate the earthquake performance of different building configurations with the TLD-TMD unit using modal and time history
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IRJET- Analysis of Irregular Structure under Linear Time HistoryIRJET Journal
This document presents an analysis of the response of irregular structures under linear time history ground motions. The study examines the effects of low, mid, and high frequency ground motion contents on reinforced concrete buildings. Linear time history analyses are performed using ETABS 2016 software on regular and irregular building models. Results for each building model are compared based on story displacement, velocity, acceleration, and base shear in response to Bhuj, India and El Centro, United States earthquake records. The results show that low frequency ground motions have a more significant effect on building response than high frequency motions. Irregular buildings also exhibited less satisfactory performance than regular structures.
Designing a 2 d rz venture model for neutronic analysis of the nigeria resear...Alexander Decker
This document describes the development of a 2D RZ VENTURE model for neutronic analysis of the Nigeria Research Reactor-1 (NIRR-1). Key regions of the reactor core were homogenized in the model. Neutronic calculations using the model generated parameters like excess reactivity, control rod worth, and shutdown margin that agreed well with experimental results and other calculations. The model provides an excellent simulation of NIRR-1 and will be useful for future analysis and developing a model to convert NIRR-1 from HEU to LEU fuel.
IRJET- Comparative Study on CFST and Steel Diagrid Structural System for High...IRJET Journal
This study compares the performance of composite cross-sectional steel tube (CFST) diagrid and steel diagrid structural systems for high-rise buildings under seismic loading. 12 building models of G+42 and G+30 storeys were analyzed using ETABS software. The buildings were located in different seismic zones with medium soil. Results showed that steel diagrid structures performed better than CFST diagrid structures, with steel diagrid exhibiting lower storey displacements and drifts. Diagrid structures in general were found to effectively distribute lateral loads and reduce the impact of dynamic loading on high-rise buildings.
IRJET- Earthquake Analysis of Tall Structure Mounted with Telecommunicati...IRJET Journal
This document analyzes the effect of installing telecommunication towers on tall buildings during earthquakes. It models a 10-story commercial building in Mumbai with towers placed in 5 different roof locations and analyzes displacement, storey shear, drift and twisting moments. Location 1, with the tower at the corner facing the seismic direction, showed the most adverse effects with increases in displacement, drift and twisting moment of over 25% compared to other locations. Location 5, with the tower at the building center, performed best with reductions in all response parameters of around 25%. The study aims to determine the ideal and critical locations for roof mounted towers to enhance structural stability during earthquakes.
Performance Study of High Rise Building with Diagrid System Under Dynamic Loa...IRJET Journal
This document summarizes a study on the performance of high-rise buildings with diagrid structural systems under dynamic loading. Diagrid structures consist of triangulated beams arranged in a unique geometric pattern that provides structural efficiency. The study models a 30-story building with and without diagrid bracing in ETABS software and analyzes storey displacement, drift and design base shear under wind, earthquake and response spectrum loading. Models are analyzed with diagrid diagonals at angles between 45-81 degrees. Results show diagrid systems perform better in reducing displacement and drift, with optimal performance between 63-75 degrees.
IRJET- Simulation, Design and Implementation of Magnetic Field Gradient Coils...IRJET Journal
This document describes the simulation, design, and implementation of magnetic field gradient coils for Earth's field MRI. The authors used MATLAB to simulate Maxwell coils for the z-gradient and Golay coils for the x- and y-gradients. They then built physical versions of the coils using copper wire. Measurements showed the Maxwell coils generated an 11.67 mT/m gradient and the Golay coils generated a 5 mT/m gradient. Finally, the gradient coils were integrated with an existing Earth's field NMR system to allow for spatial encoding of MRI signals within a smaller field of view.
IRJET- Seismic Analysis of a Multi-Storey Building using Steel Braced FramesIRJET Journal
This document summarizes a study that analyzes the seismic performance of a 15-story reinforced concrete building with different bracing systems. The building was modeled and analyzed using ETABS software. Time history analysis was performed to evaluate storey drift, displacement, fundamental period, and stiffness for the building with X, V, inverted V bracing and without bracing. The results showed that braced buildings performed better during seismic activity than unbraced. Among the braced systems, X bracing was most effective at reducing responses like storey drift during earthquakes.
IRJET- Analysis and Design of Multi Storey Building Subjected to Seismic Load...IRJET Journal
This document analyzes and designs a 3-storey building located in Gangavati, Karnataka, India and subjected to seismic zone 2 loading. The building is modeled and analyzed using ETABS software. Results like storey displacement, storey shear, and storey drift are obtained and compared for the seismic zone. The maximum storey displacement is 13.7mm in the X-direction and 12.5mm in the Y-direction. Manual analysis using Kani's method is also performed to verify the ETABS results.
Analysis of a RCC frame Tall Structure using Staad Pro on Different Seismic Z...IRJET Journal
This document analyzes the seismic behavior of a 10-story reinforced concrete frame structure located on sloping ground with different slopes and soil types. The structure is modeled in STAAD Pro and analyzed using the response spectrum method for different seismic zones. Results show that displacement, shear force, and bending moment increase as the slope and seismic zone increase. Displacement also increases as the soil type changes from hard to soft. The study concludes that ground slope and soil type have a significant impact on the seismic response of the structure.
IRJET- Comparative Analysis of NBC 105:1994 and IS 1893:2016 Seismic Codes wi...IRJET Journal
This document compares the seismic analysis and design results of a G+21 reinforced concrete frame building according to the NBC 105:1994 code of Nepal and the IS 1893:2016 code of India. Nine models of the building are analyzed for different soil types using ETABS software. The results show that for soil types I and II, the IS code yields higher base shear, displacements, and inter-story drift ratios compared to the NBC code. However, for soil type III the NBC code results in higher base shear, displacements, and drift ratios. Both codes are also compared in terms of design load combinations, with the IS code having higher load factors leading to increased reinforcement demands compared to the NBC code.
Effects of Providing Shear wall and Bracing to Seismic Performance of Concret...IRJET Journal
This document discusses the effects of providing shear walls and bracing on the seismic performance of concrete buildings through pushover analysis. Three models are considered: ordinary moment resisting frame (OMRF) without lateral resistance, braced moment resisting frame (BMRF) with bracing, and wall moment resisting frame (WMRF) with shear walls.
Pushover analysis is performed on the models using software to obtain base shear, storey displacement, and performance point. Results show that providing shear walls and bracing increases base shear at the performance point, reduces storey displacement and drift, and achieves a higher performance state. Global stiffness is also increased. Plastic hinges form more uniformly across storeys in braced and
IRJET- Seismic Vulnerability of RCC Building under Irregular Configuration in...IRJET Journal
This document summarizes a study on the seismic vulnerability of irregularly configured reinforced concrete (RC) buildings in different seismic zones. 3D models of regular, C-shaped, and L-shaped buildings were created and analyzed using ETABS software. The models were subjected to gravity and earthquake loads based on Indian standards and their displacement, drift, and shear responses were compared. The results showed that the L-shaped building generally performed better than the other configurations, with less displacement and drift across zones. The study concluded the L-shaped building is the safest option and most resistant to seismic loads compared to regular and C-shaped buildings.
Effect of Oblique Column and Viscous Damper on Podium Structure Using EtabsIRJET Journal
This document analyzes the effect of using oblique columns and viscous dampers on the seismic performance of podium structures using the ETABS software. Five building models are considered - a vertical column building without a podium, an oblique column building without a podium, a vertical column building with a podium, an oblique column building with a podium, and an oblique column building with a podium and damper. Response spectrum analysis and time history analysis are performed on the models. The results show that the oblique column models experience less displacement, drift, and overturning moments compared to the vertical column models, and the model with oblique columns, a podium, and damper performs the best in
Comparative Study on Seismic Behavior of Different Shapes of RC Structure wit...IRJET Journal
This document presents a comparative study on the seismic behavior of different shaped reinforced concrete (RC) structures equipped with viscous dampers. Three models are analyzed: H, T, and L shapes. The models are analyzed using ETABS software according to Indian seismic code provisions. Parameters like base shear, natural period, storey stiffness, drift, overturning moment, and displacement are compared. Material and geometric properties are kept the same. All models are located in seismic zone 4 and subjected to dynamic analysis using the El Centro time history record. Results show that the H-shaped building experiences the highest base shear, while viscous dampers help reduce storey displacement in the structures.
Comparison of Seismic Resistance of Moment Resisting RC Building using Shear ...IRJET Journal
This study compares the seismic resistance of a G+9 reinforced concrete building using shear walls and bracing systems. Six models are analyzed: a bare frame, three with shear walls in different locations, and three with X-bracing in different locations. Response spectrum analysis is used to evaluate the models based on base shear, storey displacement, and inter-storey drift. Both shear walls and bracing increase the building's stiffness and strength compared to the bare frame. Shear walls perform better than bracing in reducing displacements and drifts. Placing the lateral systems at the building corners provides the best seismic performance with a small increase in dead load. Shear walls are also more cost-effective than bracing.
IRJET- Effect of Bracing Pattern on the Most Structurally Stable Rectangular ...IRJET Journal
This document summarizes a study on the effect of bracing patterns on the structural stability of rectangular-shaped high-rise buildings under wind loads. Four 40-story rectangular building models with different bracing configurations (ordinary moment frame, X-bracing, V-bracing, and inverted V-bracing) were analyzed using STAAD.Pro software. The study found that X-bracing provided the most stability, with the lowest displacements and rotations, while the ordinary moment frame was the least stable. In general, the stability increased in the order of ordinary frame < inverted V-bracing < V-bracing < X-bracing. The document concludes that bracing can significantly improve the structural performance of
Critical Comparative Study of Dynamic Wind Response of Tall Buildings Using G...IRJET Journal
This document presents a critical comparative study of the dynamic wind response of tall buildings using the gust effectiveness factor method. 14 building models ranging from 16 to 50 stories were analyzed using ETABS software. The study found that dynamic wind load response is nonlinear and parabolic with increasing building height, while static wind load response is linear. Response parameters like story drift, force and displacement were compared for buildings with different aspect ratios, number of stories, and ground conditions. Dynamic wind load caused greater response than static wind load. Response generally increased with higher aspect ratios and number of stories. Buildings on sloping ground also exhibited higher response compared to those on flat ground. The study provides valuable insights into tall building design for wind load conditions.
Analysis of super structure building with plan and elevation irregularities u...IRJET Journal
This document analyzes the response of irregular buildings to earthquakes using response spectrum analysis. It models different building shapes (rectangle, L, T, U) in ETABS software and evaluates storey displacements, drifts, and torsional irregularity under seismic loads. Rectangular and L-shaped buildings showed the highest displacements and drifts compared to code limits when shear walls were placed asymmetrically. Placing shear walls symmetrically in the models reduced torsional irregularity and improved seismic performance. The study aims to understand how plan and elevation irregularities impact building response during earthquakes.
IRJET- Behaviour of Tuned Mass Dampers on Dynamic Response of Structure u...IRJET Journal
This document discusses using tuned mass dampers (TMDs) to reduce the dynamic response of structures subjected to seismic excitation. It presents the results of a study that modeled a 20-story reinforced concrete building in SAP2000 software. TMDs with masses ranging from 0.2% to 2% of the total building mass were added to the model. The study found that adding a single TMD or multiple TMDs tuned to different structural frequencies reduced the displacement response of the building compared to a bare frame model without TMDs. Tables show the calculated properties of single TMDs with varying mass ratios, including the damper mass, frequency, and damping ratio. Graphs compare the displacement responses of models with and
IRJET- Analytical Comparison of a G+8 Story Residential Building with Tun...IRJET Journal
This document analytically compares the performance of an 8-story residential building with a tuned mass damper (TMD) and particle tuned mass damper (PTMD) under seismic and wind loads. Time history analysis is performed on a model of the building in ETABS software. Results show that the PTMD is generally more effective at reducing vibration than the TMD. This is because the PTMD dissipates energy not just through tuning, but also through friction and impact between particles within its container. Specifically, the PTMD decreases story displacement, overturning moment, and story shear more than the TMD in response to ground motion.
Comparative Study on Seismic Behavior of Different Shape of RC Structure with...IRJET Journal
This document reviews several papers on using different types of seismic dampers, including viscous, visco-elastic, friction, tuned mass, and yielding dampers, to improve the seismic performance of reinforced concrete (RC) structures. It finds that installing dampers can significantly reduce displacement, inter-story drift, column shear forces, and acceleration responses in RC buildings during earthquakes compared to buildings without dampers. Viscous dampers generally provide better displacement control than other damper types. The optimal placement of dampers is on lower floors, as this minimizes displacement and drift the most.
Response Spectrum and Time History Analysis of a Multistorey BuildingIRJET Journal
This document summarizes a study that analyzed the response spectrum and time history analysis of a 15-story building model using ETABS software. The building was subjected to seismic analysis to determine displacements, storey shears, and stiffness under earthquake forces. Both response spectrum analysis and time history analysis were conducted. The response spectrum analysis produced plots of storey displacement, storey shear, and storey stiffness. The time history analysis generated response spectrum plots and time history plots showing the variation in results between the two analysis methods. The study concluded the multi-story building designed to code was able to resist seismic forces based on the analysis results.
Regular High Rise Building Vibration Control by Tuned Mass Damper: A Performa...IRJET Journal
1) The document discusses using a tuned mass damper (TMD) to control vibrations in high-rise buildings caused by earthquakes and wind loads. A TMD works like a pendulum to counteract vibrations in the structure.
2) A numerical simulation was conducted of a high-rise building model with and without a TMD under different earthquake loads. The results showed that a TMD could significantly decrease the displacement responses of the structure in multiple directions.
3) TMDs work by having a secondary mass system tuned to the natural frequency of the structural vibration. When the structure vibrates, the TMD vibrates out of phase to transfer excess energy, reducing the response of the main structure
IRJET - Seismic Analysis of Different Shape of RC Building by using the Visco...IRJET Journal
This document analyzes the seismic performance of three different shaped RC buildings (H, T, and L shapes) using viscous dampers. The buildings are modeled in Etabs and analyzed using time history analysis. Key results are compared, including natural period, base shear, story displacement, drift, and stiffness. The H shape building performed best with lowest displacement and highest stiffness. The L shape had the lowest base shear but highest drift. All models had natural periods within the acceptable range specified in Indian codes. In conclusion, the H shape building with its reinforced geometry had superior seismic performance compared to the other shapes.
IRJET- Design and Analysis of RCC Framed Structure(G+5) by using STAAD.Pr...IRJET Journal
1. The document describes the analysis and design of a G+5 residential building using STAAD.Pro and STAAD.etc software.
2. The building is modeled in STAAD.Pro, loads are applied, and the structure is analyzed to obtain shear forces and bending moments. Beams, columns, slabs, and pile caps are then designed using both STAAD.etc and manual calculations.
3. The analysis and design are compared to validate the results and determine the safe and economical design of the building.
IRJET- Analysis & Design of Reinforced Concrete Building (G+4) using ETABSIRJET Journal
This document summarizes the analysis and design of a reinforced concrete residential building (G+4) using ETABS software. Key points include:
- The building is located in Bangalore and designed according to Indian codes. Loads like dead load, live load, wind and seismic loads are considered.
- The structure is analyzed under different load combinations as per code specifications. Beams, columns, slabs and rebar are designed using materials like M25 and M30 concrete and HYSD bars of grades 500 and 550.
- Results of the analysis show maximum bending moments, shear forces, and deflections within permissible limits. Base reactions are summarized to aid in foundation design.
- In conclusion, ET
IRJET- Behavior of Reinforced Cement Concrete Multistorey Building under Blas...IRJET Journal
This document analyzes the behavior of reinforced cement concrete multi-story buildings under blast loading through analytical and finite element methods. Two models of a 3-story building - a 3D frame model and a lumped mass model - are subjected to surface and subsurface blast explosions in MATLAB and finite element software. Results such as displacement, acceleration, shear forces are compared between the two models and different blast scenarios. The study aims to help predict blast loads and their effects on building components, as well as suggest blast resistant techniques.
IRJET- Lateral Stiffness of Framed Structures for Lateral LoadsIRJET Journal
The document discusses methods for calculating the lateral stiffness of framed structures. It begins by noting the importance of evaluating stiffness for seismic design codes. Several approximate methods for calculating storey stiffness are compared, but accurate methods using finite element analysis have been less studied. The study aims to compare different accurate methods for calculating storey stiffness using analytical software models. A 4-storey reinforced concrete frame structure is modeled and different analysis methods are applied to calculate storey stiffnesses, including applying point loads at different locations and calculating drifts. Results will help identify the most accurate and practical method for engineers.
IRJET- Effect of Bracing Pattern on the L Shape of RCC Tall Building due to W...IRJET Journal
This document summarizes research analyzing the effect of bracing patterns on wind load response in L-shaped reinforced concrete tall buildings. Four 40-story L-shaped building models with heights of 120 meters were analyzed: ordinary moment frame, X bracing, V bracing, and inverted V bracing. Wind loads were calculated using the force coefficient method for Gwalior, India. Finite element analysis software was used to analyze member forces and deflections under wind and gravity loads. Results showed inverted V and V bracing produced the least displacement and highest structural stability compared to X bracing and ordinary moment frame. Inverted V bracing is therefore recommended for L-shaped tall buildings in high wind regions.
IRJET- Securing an IoT Based Home using Digital Image Processing and an Andro...IRJET Journal
The document analyzes the effect of bracing patterns on an L-shaped reinforced concrete tall building under wind loads. Four 40-story L-shaped building models with different bracing configurations - ordinary moment frame, X bracing, V bracing, and inverted V bracing - were analyzed using STAAD.Pro software. The inverted V braced model had the lowest displacements and was the most structurally stable, while the ordinary moment frame model had the highest displacements and was the least stable. Increasing bracing improved building stability and reduced displacements, bending moments, and shear forces. Therefore, inverted V and V bracing patterns provided better performance for L-shaped tall buildings under wind loads compared to X bra
IRJET- Seismic Forces on Transmission Line TowerIRJET Journal
This document analyzes seismic forces on transmission line towers located in different earthquake zones and soil conditions. It summarizes the analysis of cross braced and diagonally braced transmission line towers using STAAD Pro software. The towers are 35m high with a square base and located in Zone III and IV seismic zones on hard, medium, and soft soils. The analysis considers dead loads, wind loads, and earthquake loads. Results are presented for member forces and support reactions for different load combinations. The maximum axial forces, moments and reactions are compared for the different tower designs, soil types, and seismic zones considered in the study.
Comparative Study of Seismic Analysis of RC Frame Structure with and without ...IRJET Journal
This document presents a comparative study of seismic analysis of RC frame structures with and without belt truss and outrigger truss systems. Three 30-story RC frame models are analyzed using ETABS software: a regular structure, one with a belt truss, and one with an outrigger truss. Response spectrum analysis is conducted based on Indian seismic code IS 1893. The addition of truss systems improves seismic performance by reducing base shear, inter-story drift, and displacements. Specifically, the model with a belt truss performed best with the shortest period and lowest base shear, drift, and displacements. Therefore, belt trusses are more suitable than outriggers for high-rise buildings to improve earthquake resistance.
IRJET- Seismic Study of Multi-Storey Structure with Fluid Viscous Dampers...IRJET Journal
This document analyzes the seismic performance of a 10-story reinforced concrete building located in different seismic zones, both with and without fluid viscous dampers (FVD). Using ETABS software, the building is modeled and subjected to response spectrum analysis and time history analysis under various earthquake conditions. The results show that when FVDs are included, the top floor displacement, deformation, and base shear are reduced, indicating improved seismic performance. Specifically, the addition of FVD250 dampers reduced the base shear by up to 72% and the time period by up to 80% compared to the building without dampers. Therefore, the inclusion of FVDs is an effective technique for improving the seismic resistance of reinforced concrete structures.
Similar to Seismic Analysis of Telecommunication Tower using Viscous Damper (20)
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
1) The document discusses the Sungal Tunnel project in Jammu and Kashmir, India, which is being constructed using the New Austrian Tunneling Method (NATM).
2) NATM involves continuous monitoring during construction to adapt to changing ground conditions, and makes extensive use of shotcrete for temporary tunnel support.
3) The methodology section outlines the systematic geotechnical design process for tunnels according to Austrian guidelines, and describes the various steps of NATM tunnel construction including initial and secondary tunnel support.
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
A COMPARATIVE ANALYSIS OF RCC ELEMENT OF SLAB WITH STARK STEEL (HYSD STEEL) A...IRJET Journal
This study compares the use of Stark Steel and TMT Steel as reinforcement materials in a two-way reinforced concrete slab. Mechanical testing is conducted to determine the tensile strength, yield strength, and other properties of each material. A two-way slab design adhering to codes and standards is executed with both materials. The performance is analyzed in terms of deflection, stability under loads, and displacement. Cost analyses accounting for material, durability, maintenance, and life cycle costs are also conducted. The findings provide insights into the economic and structural implications of each material for reinforcement selection and recommendations on the most suitable material based on the analysis.
Effect of Camber and Angles of Attack on Airfoil CharacteristicsIRJET Journal
This document discusses a study analyzing the effect of camber, position of camber, and angle of attack on the aerodynamic characteristics of airfoils. Sixteen modified asymmetric NACA airfoils were analyzed using computational fluid dynamics (CFD) by varying the camber, camber position, and angle of attack. The results showed the relationship between these parameters and the lift coefficient, drag coefficient, and lift to drag ratio. This provides insight into how changes in airfoil geometry impact aerodynamic performance.
A Review on the Progress and Challenges of Aluminum-Based Metal Matrix Compos...IRJET Journal
This document reviews the progress and challenges of aluminum-based metal matrix composites (MMCs), focusing on their fabrication processes and applications. It discusses how various aluminum MMCs have been developed using reinforcements like borides, carbides, oxides, and nitrides to improve mechanical and wear properties. These composites have gained prominence for their lightweight, high-strength and corrosion resistance properties. The document also examines recent advancements in fabrication techniques for aluminum MMCs and their growing applications in industries such as aerospace and automotive. However, it notes that challenges remain around issues like improper mixing of reinforcements and reducing reinforcement agglomeration.
Dynamic Urban Transit Optimization: A Graph Neural Network Approach for Real-...IRJET Journal
This document discusses research on using graph neural networks (GNNs) for dynamic optimization of public transportation networks in real-time. GNNs represent transit networks as graphs with nodes as stops and edges as connections. The GNN model aims to optimize networks using real-time data on vehicle locations, arrival times, and passenger loads. This helps increase mobility, decrease traffic, and improve efficiency. The system continuously trains and infers to adapt to changing transit conditions, providing decision support tools. While research has focused on performance, more work is needed on security, socio-economic impacts, contextual generalization of models, continuous learning approaches, and effective real-time visualization.
Structural Analysis and Design of Multi-Storey Symmetric and Asymmetric Shape...IRJET Journal
This document summarizes a research project that aims to compare the structural performance of conventional slab and grid slab systems in multi-story buildings using ETABS software. The study will analyze both symmetric and asymmetric building models under various loading conditions. Parameters like deflections, moments, shears, and stresses will be examined to evaluate the structural effectiveness of each slab type. The results will provide insights into the comparative behavior of conventional and grid slabs to help engineers and architects select appropriate slab systems based on building layouts and design requirements.
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...IRJET Journal
This document summarizes and reviews a research paper on the seismic response of reinforced concrete (RC) structures with plan and vertical irregularities, with and without infill walls. It discusses how infill walls can improve or reduce the seismic performance of RC buildings, depending on factors like wall layout, height distribution, connection to the frame, and relative stiffness of walls and frames. The reviewed research paper analyzes the behavior of infill walls, effects of vertical irregularities, and seismic performance of high-rise structures under linear static and dynamic analysis. It studies response characteristics like story drift, deflection and shear. The document also provides literature on similar research investigating the effects of infill walls, soft stories, plan irregularities, and different
This document provides a review of machine learning techniques used in Advanced Driver Assistance Systems (ADAS). It begins with an abstract that summarizes key applications of machine learning in ADAS, including object detection, recognition, and decision-making. The introduction discusses the integration of machine learning in ADAS and how it is transforming vehicle safety. The literature review then examines several research papers on topics like lightweight deep learning models for object detection and lane detection models using image processing. It concludes by discussing challenges and opportunities in the field, such as improving algorithm robustness and adaptability.
Long Term Trend Analysis of Precipitation and Temperature for Asosa district,...IRJET Journal
The document analyzes temperature and precipitation trends in Asosa District, Benishangul Gumuz Region, Ethiopia from 1993 to 2022 based on data from the local meteorological station. The results show:
1) The average maximum and minimum annual temperatures have generally decreased over time, with maximum temperatures decreasing by a factor of -0.0341 and minimum by -0.0152.
2) Mann-Kendall tests found the decreasing temperature trends to be statistically significant for annual maximum temperatures but not for annual minimum temperatures.
3) Annual precipitation in Asosa District showed a statistically significant increasing trend.
The conclusions recommend development planners account for rising summer precipitation and declining temperatures in
P.E.B. Framed Structure Design and Analysis Using STAAD ProIRJET Journal
This document discusses the design and analysis of pre-engineered building (PEB) framed structures using STAAD Pro software. It provides an overview of PEBs, including that they are designed off-site with building trusses and beams produced in a factory. STAAD Pro is identified as a key tool for modeling, analyzing, and designing PEBs to ensure their performance and safety under various load scenarios. The document outlines modeling structural parts in STAAD Pro, evaluating structural reactions, assigning loads, and following international design codes and standards. In summary, STAAD Pro is used to design and analyze PEB framed structures to ensure safety and code compliance.
A Review on Innovative Fiber Integration for Enhanced Reinforcement of Concre...IRJET Journal
This document provides a review of research on innovative fiber integration methods for reinforcing concrete structures. It discusses studies that have explored using carbon fiber reinforced polymer (CFRP) composites with recycled plastic aggregates to develop more sustainable strengthening techniques. It also examines using ultra-high performance fiber reinforced concrete to improve shear strength in beams. Additional topics covered include the dynamic responses of FRP-strengthened beams under static and impact loads, and the performance of preloaded CFRP-strengthened fiber reinforced concrete beams. The review highlights the potential of fiber composites to enable more sustainable and resilient construction practices.
Survey Paper on Cloud-Based Secured Healthcare SystemIRJET Journal
This document summarizes a survey on securing patient healthcare data in cloud-based systems. It discusses using technologies like facial recognition, smart cards, and cloud computing combined with strong encryption to securely store patient data. The survey found that healthcare professionals believe digitizing patient records and storing them in a centralized cloud system would improve access during emergencies and enable more efficient care compared to paper-based systems. However, ensuring privacy and security of patient data is paramount as healthcare incorporates these digital technologies.
Review on studies and research on widening of existing concrete bridgesIRJET Journal
This document summarizes several studies that have been conducted on widening existing concrete bridges. It describes a study from China that examined load distribution factors for a bridge widened with composite steel-concrete girders. It also outlines challenges and solutions for widening a bridge in the UAE, including replacing bearings and stitching the new and existing structures. Additionally, it discusses two bridge widening projects in New Zealand that involved adding precast beams and stitching to connect structures. Finally, safety measures and challenges for strengthening a historic bridge in Switzerland under live traffic are presented.
React based fullstack edtech web applicationIRJET Journal
The document describes the architecture of an educational technology web application built using the MERN stack. It discusses the frontend developed with ReactJS, backend with NodeJS and ExpressJS, and MongoDB database. The frontend provides dynamic user interfaces, while the backend offers APIs for authentication, course management, and other functions. MongoDB enables flexible data storage. The architecture aims to provide a scalable, responsive platform for online learning.
A Comprehensive Review of Integrating IoT and Blockchain Technologies in the ...IRJET Journal
This paper proposes integrating Internet of Things (IoT) and blockchain technologies to help implement objectives of India's National Education Policy (NEP) in the education sector. The paper discusses how blockchain could be used for secure student data management, credential verification, and decentralized learning platforms. IoT devices could create smart classrooms, automate attendance tracking, and enable real-time monitoring. Blockchain would ensure integrity of exam processes and resource allocation, while smart contracts automate agreements. The paper argues this integration has potential to revolutionize education by making it more secure, transparent and efficient, in alignment with NEP goals. However, challenges like infrastructure needs, data privacy, and collaborative efforts are also discussed.
A REVIEW ON THE PERFORMANCE OF COCONUT FIBRE REINFORCED CONCRETE.IRJET Journal
This document provides a review of research on the performance of coconut fibre reinforced concrete. It summarizes several studies that tested different volume fractions and lengths of coconut fibres in concrete mixtures with varying compressive strengths. The studies found that coconut fibre improved properties like tensile strength, toughness, crack resistance, and spalling resistance compared to plain concrete. Volume fractions of 2-5% and fibre lengths of 20-50mm produced the best results. The document concludes that using a 4-5% volume fraction of coconut fibres 30-40mm in length with M30-M60 grade concrete would provide benefits based on previous research.
Optimizing Business Management Process Workflows: The Dynamic Influence of Mi...IRJET Journal
The document discusses optimizing business management processes through automation using Microsoft Power Automate and artificial intelligence. It provides an overview of Power Automate's key components and features for automating workflows across various apps and services. The document then presents several scenarios applying automation solutions to common business processes like data entry, monitoring, HR, finance, customer support, and more. It estimates the potential time and cost savings from implementing automation for each scenario. Finally, the conclusion emphasizes the transformative impact of AI and automation tools on business processes and the need for ongoing optimization.
Multistoried and Multi Bay Steel Building Frame by using Seismic DesignIRJET Journal
The document describes the seismic design of a G+5 steel building frame located in Roorkee, India according to Indian codes IS 1893-2002 and IS 800. The frame was analyzed using the equivalent static load method and response spectrum method, and its response in terms of displacements and shear forces were compared. Based on the analysis, the frame was designed as a seismic-resistant steel structure according to IS 800:2007. The software STAAD Pro was used for the analysis and design.
Cost Optimization of Construction Using Plastic Waste as a Sustainable Constr...IRJET Journal
This research paper explores using plastic waste as a sustainable and cost-effective construction material. The study focuses on manufacturing pavers and bricks using recycled plastic and partially replacing concrete with plastic alternatives. Initial results found that pavers and bricks made from recycled plastic demonstrate comparable strength and durability to traditional materials while providing environmental and cost benefits. Additionally, preliminary research indicates incorporating plastic waste as a partial concrete replacement significantly reduces construction costs without compromising structural integrity. The outcomes suggest adopting plastic waste in construction can address plastic pollution while optimizing costs, promoting more sustainable building practices.
Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
UNLOCKING HEALTHCARE 4.0: NAVIGATING CRITICAL SUCCESS FACTORS FOR EFFECTIVE I...amsjournal
The Fourth Industrial Revolution is transforming industries, including healthcare, by integrating digital,
physical, and biological technologies. This study examines the integration of 4.0 technologies into
healthcare, identifying success factors and challenges through interviews with 70 stakeholders from 33
countries. Healthcare is evolving significantly, with varied objectives across nations aiming to improve
population health. The study explores stakeholders' perceptions on critical success factors, identifying
challenges such as insufficiently trained personnel, organizational silos, and structural barriers to data
exchange. Facilitators for integration include cost reduction initiatives and interoperability policies.
Technologies like IoT, Big Data, AI, Machine Learning, and robotics enhance diagnostics, treatment
precision, and real-time monitoring, reducing errors and optimizing resource utilization. Automation
improves employee satisfaction and patient care, while Blockchain and telemedicine drive cost reductions.
Successful integration requires skilled professionals and supportive policies, promising efficient resource
use, lower error rates, and accelerated processes, leading to optimized global healthcare outcomes.
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELgerogepatton
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024Sinan KOZAK
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.