This document presents a finite element analysis of retrofitting RC beams with carbon fiber reinforced plastic (CFRP) using ABAQUS. Eight beams were tested experimentally with the same geometry but different CFRP plate lengths. The finite element models aim to simulate the experimental results. Concrete is modeled with a plastic damage model, steel with an elastic-plastic model, and CFRP either as isotropic or orthotropic elastic material. The analysis shows good agreement with experimental load-displacement curves and crack patterns. Increasing the CFRP plate length increases the beam's load capacity.
IRJET- Strengthening of Partially Damaged Deficient RC Beam with Externally B...IRJET Journal
1) The document presents a numerical study on strengthening partially damaged reinforced concrete beams against shear failure through external bonding of Basalt Fiber Reinforced Polymer (BFRP) composites.
2) Finite element models of control beams and shear deficient beams were created in ANSYS to simulate their behavior. Shear deficient beams were strengthened using different BFRP wrapping configurations.
3) The results showed that all BFRP wrapping arrangements improved the strength and stiffness of the beams significantly compared to the shear deficient beam without strengthening.
IRJET- Investigation on EBROB Method to Postpone Debonding of CFRP Sheet Comp...IRJET Journal
This document investigates using the EBROB (externally bonded reinforcement on bores) method to postpone debonding of CFRP sheets in pre-cracked reinforced concrete beams. It presents an experimental study with 15 beam configurations testing different borehole diameters, depths, and spacings. The key findings are:
1) Beams strengthened with EBROB showed 6.5-23.75% higher ultimate loads than unstrengthened beams, indicating EBROB delays CFRP debonding.
2) The optimum borehole depth was 50mm, with deeper holes reducing strength as they approached the beam's neutral axis.
3) Increasing borehole diameter and decreasing spacing between holes
IRJET- Experimental Study on Behaviour of Strengthened R.C.C Column using Ext...IRJET Journal
The document presents an experimental study that investigated the behavior and load carrying capacity of reinforced concrete columns strengthened with external steel confinement. Four column specimens were tested: one unconfined conventional column, two confined with steel battens, and one with additional steel rods. The confined columns exhibited higher load capacities, energy absorption, and ductility than the conventional column. The top, middle, and bottom batten confinement provided the highest resistance to loading and failure initiated by buckling of the steel angles after yielding. The study demonstrated that external steel confinement can effectively strengthen reinforced concrete columns.
Analysis of Energy Absorption Tubes (Crush Can)IRJET Journal
The document analyzes the energy absorption of different tube designs through finite element analysis. It summarizes that square, circular, rectangular, and square tubes with holes were modeled and subjected to axial impact loading at 15 m/s. The square tube absorbed the most energy by reducing the initial peak force and increasing progressive crushing. Validation experiments were also conducted on an aluminum tube under quasi-static loading, with the force-displacement curve and failure modes matching FEA results. The analysis concludes circular and rectangular tubes perform similarly in absorbing energy through axial loading, while the square tube with holes minimizes initial peak force to reduce occupant harm.
IRJET- Analysis of Precast Post Tensioned Segmental Bridge Column using AnsysIRJET Journal
This document analyzes a precast post-tensioned segmental bridge column using ANSYS software. The researchers modeled square and circular column sections with energy dissipation bars and shape memory alloy bars as reinforcement. Both column sections were subjected to a 5000 kN load. The square column deflected 0.0006346 mm with an equivalent stress of 0.04525 MPa, resisting shear between -5.877x10-8 to 4.8186x10-8 N/mm2. The circular column deflected 7.9939x10-5 mm with an equivalent stress of 0.00050612 N/mm2, resisting shear up to 5.9112x10-9 N/mm2.
IRJET- Finite Element Analysis of Corrugated Web Beams, Column and Slab Conne...IRJET Journal
This document analyzes beam, column, and slab connections with different corrugated shapes (trapezoidal, sinusoidal, rectangular) using finite element analysis software ANSYS. It finds that:
1) A sinusoidal corrugated beam has a higher load carrying capacity and lower stress than trapezoidal or rectangular beams.
2) A trapezoidal corrugated column has a higher load carrying capacity and buckling resistance than sinusoidal or rectangular columns.
3) A connection with a sinusoidal beam, trapezoidal column, and rectangular slab has the highest load carrying capacity compared to other combinations of shapes.
IRJET- Numerical Analysis of RC Beams Reinforced with CFRP RodsIRJET Journal
This document presents a numerical analysis of reinforced concrete (RC) beams reinforced with carbon fiber reinforced polymer (CFRP) rods. The researchers developed a nonlinear numerical model using the rigid body spring method to simulate the flexural behavior of beams reinforced with CFRP rods. The model accounts for nonlinear material properties and bond-slip relationships. It was validated by analyzing previous experimental works and showed good agreement with the experimental results in terms of ultimate capacity, load-deflection behavior, and failure mode. The study demonstrates the capabilities of the model for evaluating the efficiency of using CFRP rods compared to traditional steel reinforcement.
IRJET- Strengthening of Partially Damaged Deficient RC Beam with Externally B...IRJET Journal
1) The document presents a numerical study on strengthening partially damaged reinforced concrete beams against shear failure through external bonding of Basalt Fiber Reinforced Polymer (BFRP) composites.
2) Finite element models of control beams and shear deficient beams were created in ANSYS to simulate their behavior. Shear deficient beams were strengthened using different BFRP wrapping configurations.
3) The results showed that all BFRP wrapping arrangements improved the strength and stiffness of the beams significantly compared to the shear deficient beam without strengthening.
IRJET- Investigation on EBROB Method to Postpone Debonding of CFRP Sheet Comp...IRJET Journal
This document investigates using the EBROB (externally bonded reinforcement on bores) method to postpone debonding of CFRP sheets in pre-cracked reinforced concrete beams. It presents an experimental study with 15 beam configurations testing different borehole diameters, depths, and spacings. The key findings are:
1) Beams strengthened with EBROB showed 6.5-23.75% higher ultimate loads than unstrengthened beams, indicating EBROB delays CFRP debonding.
2) The optimum borehole depth was 50mm, with deeper holes reducing strength as they approached the beam's neutral axis.
3) Increasing borehole diameter and decreasing spacing between holes
IRJET- Experimental Study on Behaviour of Strengthened R.C.C Column using Ext...IRJET Journal
The document presents an experimental study that investigated the behavior and load carrying capacity of reinforced concrete columns strengthened with external steel confinement. Four column specimens were tested: one unconfined conventional column, two confined with steel battens, and one with additional steel rods. The confined columns exhibited higher load capacities, energy absorption, and ductility than the conventional column. The top, middle, and bottom batten confinement provided the highest resistance to loading and failure initiated by buckling of the steel angles after yielding. The study demonstrated that external steel confinement can effectively strengthen reinforced concrete columns.
Analysis of Energy Absorption Tubes (Crush Can)IRJET Journal
The document analyzes the energy absorption of different tube designs through finite element analysis. It summarizes that square, circular, rectangular, and square tubes with holes were modeled and subjected to axial impact loading at 15 m/s. The square tube absorbed the most energy by reducing the initial peak force and increasing progressive crushing. Validation experiments were also conducted on an aluminum tube under quasi-static loading, with the force-displacement curve and failure modes matching FEA results. The analysis concludes circular and rectangular tubes perform similarly in absorbing energy through axial loading, while the square tube with holes minimizes initial peak force to reduce occupant harm.
IRJET- Analysis of Precast Post Tensioned Segmental Bridge Column using AnsysIRJET Journal
This document analyzes a precast post-tensioned segmental bridge column using ANSYS software. The researchers modeled square and circular column sections with energy dissipation bars and shape memory alloy bars as reinforcement. Both column sections were subjected to a 5000 kN load. The square column deflected 0.0006346 mm with an equivalent stress of 0.04525 MPa, resisting shear between -5.877x10-8 to 4.8186x10-8 N/mm2. The circular column deflected 7.9939x10-5 mm with an equivalent stress of 0.00050612 N/mm2, resisting shear up to 5.9112x10-9 N/mm2.
IRJET- Finite Element Analysis of Corrugated Web Beams, Column and Slab Conne...IRJET Journal
This document analyzes beam, column, and slab connections with different corrugated shapes (trapezoidal, sinusoidal, rectangular) using finite element analysis software ANSYS. It finds that:
1) A sinusoidal corrugated beam has a higher load carrying capacity and lower stress than trapezoidal or rectangular beams.
2) A trapezoidal corrugated column has a higher load carrying capacity and buckling resistance than sinusoidal or rectangular columns.
3) A connection with a sinusoidal beam, trapezoidal column, and rectangular slab has the highest load carrying capacity compared to other combinations of shapes.
IRJET- Numerical Analysis of RC Beams Reinforced with CFRP RodsIRJET Journal
This document presents a numerical analysis of reinforced concrete (RC) beams reinforced with carbon fiber reinforced polymer (CFRP) rods. The researchers developed a nonlinear numerical model using the rigid body spring method to simulate the flexural behavior of beams reinforced with CFRP rods. The model accounts for nonlinear material properties and bond-slip relationships. It was validated by analyzing previous experimental works and showed good agreement with the experimental results in terms of ultimate capacity, load-deflection behavior, and failure mode. The study demonstrates the capabilities of the model for evaluating the efficiency of using CFRP rods compared to traditional steel reinforcement.
IRJET- Optimal Design and Analysis of a Stringer-Stiffened Composite Payload ...IRJET Journal
This document describes the optimal design and analysis of a composite payload adapter with two different configurations: a monocoque structure and a stringer-stiffened structure. Finite element modeling and analysis was performed to minimize the mass of each structure while meeting strength, stiffness, and buckling requirements. The results showed that using composite laminates instead of aluminum reduced the mass by over 50% for both configurations. Specifically, the optimized monocoque structure mass was reduced from 62.35kg (aluminum) to 30.31kg (composite) and the stringer-stiffened structure mass was reduced from 55.1kg to 21.79kg by using composites. The stringer-stiffened configuration was found to be lighter
IRJET- An Experimental Study on the Flexural Behavior of RC Beam using Carbon...IRJET Journal
This study experimentally evaluated the flexural behavior of reinforced concrete beams wrapped with carbon fiber reinforced polymer mesh and epoxy. Two beams were cast - a conventional beam and one wrapped with CFRP. When tested after 28 days of curing, the CFRP wrapped beam showed a 48% increase in flexural strength compared to the unwrapped beam. The ultimate load of the CFRP beam was 116kN compared to 63kN for the conventional beam. The flexural strength was 51.55N/mm2 for the CFRP beam and 28N/mm2 for the conventional beam, demonstrating that wrapping with CFRP fiber mesh and epoxy can significantly improve the flexural strength of reinforced concrete
IRJET- Behaviour of Prefabricated Steel Reinforced Concrete Column with C...IRJET Journal
This study analyzes the behavior of prefabricated steel reinforced concrete (PSRC) columns with and without a concrete core through finite element analysis. 30 column models were analyzed under various load eccentricities. The results show that PSRC columns with a concrete core had higher load capacities and better deformation behavior compared to columns without a core. Scattered square core specimens performed the best with a 5.1% higher load capacity due to a more uniform distribution of moment of inertia.
Comparison of Seismic Behaviour of a Typical Multi-Storey Structure with CFRP...IRJET Journal
This document compares the seismic behavior of multi-story buildings with different column designs through response spectrum analysis using ETABS software. It analyzes buildings with reinforced concrete columns, concrete filled steel tube (CFST) columns, CFST columns wrapped with carbon fiber reinforced polymer (CFRP), and CFST columns encased in an I-section steel beam. The analysis found that buildings with composite columns performed better against seismic forces, with story displacement reduced up to 17% and drift reduced up to 18% compared to buildings with reinforced concrete columns. CFRP wrapped CFST columns and I-section encased CFST columns were most effective at improving seismic behavior.
MECH461 Final Report REV 4_FOR LINKEDINStephen Roper
This document discusses the finite element analysis and design optimization of an electric bicycle structure using carbon fiber composites. The goal is to reduce mass by 31% while increasing stiffness by 4% over operating conditions. A literature review is presented on past research analyzing carbon fiber bicycle frames. The objectives are outlined as free size optimization to determine ideal ply orientations, dimension optimization to create manufacturable laminate thicknesses, and shuffle optimization to reorder plies for manufacturing. Finite element modeling is used to analyze different laminate designs and failure theories. The final design recommendation is a monocoque geometry with 31 plies of T300/976 carbon/epoxy optimized for improved structural performance.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Experimental Study on Flexural Behaviour of Steel Beam at Diverse LoadingIRJET Journal
This study experimentally analyzed the flexural behavior of steel channel sections (ISMC75) under different loading conditions. The channel section was tested as a simply supported beam under two-point loading applied at either the web or flange. When loaded at the flange, the channel section carried 47% higher loads than when loaded at the web, reaching its plastic moment capacity. Deflections were also higher under flange loading. The results provide data on the flexural behavior and load-carrying capacity of channel sections based on the point of load application.
Structural Health Monitoring and Strengthening Of BridgesEditor IJCATR
This paper presents one bridge which were either rehabilitated or strengthened by using FRP composites. The resulting structure was then tested for the effect after using FRP composites for Rehabilitation and strengthening. In this paper, Structural Health Monitoring basics are covered and need for SHM in future in or India scenario. Use of FRP composites in Rehabilitation and Strengthening of structures is becoming increasingly popular and is opening new possibilities in construction and rehabilitation of structures.
IRJET- Behavior of Ultra High Performance Concrete (UHPC) and Normal Conc...IRJET Journal
This document presents a study comparing the behavior of normal concrete (NC) columns, ultra-high performance concrete (UHPC) columns, and compound columns made of both NC and UHPC under eccentric loads. Nine reinforced concrete columns were tested under different load conditions. The results showed that NC columns failed progressively with cracks developing gradually, while UHPC columns failed suddenly in a brittle manner. Compound columns failed suddenly with little warning. UHPC achieved much higher compressive, tensile, and flexural strengths compared to NC. As eccentricity of the load increased, the load capacity of NC columns decreased significantly and their stiffness reduced.
IRJET- Study of Static Analysis on Conventional and Oblique Prestressed C...IRJET Journal
This document presents a study comparing the static analysis of conventional and oblique prestressed concrete bridge superstructures. The study models and analyzes both types of bridge designs using CSi Bridge software. Conventional prestressing uses tendons running longitudinally along the girders, while oblique prestressing orients the tendons at a 45 degree angle to apply prestress transversely. The analysis found that oblique prestressing can eliminate the need for transverse joints and reduce slab thickness compared to conventional methods. Increasing the spacing of oblique tendons was also analyzed to study its effects.
IRJET- Experimental and Analytical Performance of Composite Laminated Timber ...IRJET Journal
This document analyzes the performance of composite laminated timber beams reinforced with cold formed steel sections through experimental testing and analytical modeling. Experimental bending tests were conducted on laminated rubber wood beams reinforced with a cold formed Z-section steel profile. Analytical models of the composite beams were also created in ANSYS software to analyze different steel section shapes. The results showed that reinforcing the laminated timber beams significantly increased their load bearing capacities compared to unreinforced beams. Composite beams using double C and hat steel sections performed best, with double C sections showing the highest load capacity and lowest deflection.
Design and Analysis of Mono Composite Leaf Spring by Varying Thickness using FEAIOSR Journals
This document summarizes a study on the design and analysis of a mono composite leaf spring with varying thickness using finite element analysis (FEA). A glass fiber reinforced composite (GFRC) leaf spring was modeled and analyzed in ANSYS and compared to a conventional steel leaf spring. Static analysis was performed to evaluate stress and deflection under a 300kg load with leaf spring thicknesses of 28mm, 30mm, and 32mm. Both analytical calculations and FEA results showed that the composite leaf spring had lower stress and deflection compared to the steel spring, with performance improving as thickness increased. The composite leaf spring provides benefits such as reduced weight, increased damping, and better corrosion resistance compared to the conventional steel spring.
IRJET- A Review on Comparative Study between Girder Bridge and Extradosed...IRJET Journal
This document summarizes and compares girder bridges and extradosed bridges. It first provides background on extradosed bridges, noting they are a hybrid of girder and cable-stayed bridges. The structural behavior of extradosed bridges differs from cable-stayed bridges. It then describes common girder bridge types like plate girder, box girder, I-beam, and T-beam bridges. The document reviews literature on bridge modeling and analysis, including a study comparing the response of extradosed and cable-stayed bridge decks. It concludes that extradosed bridges have lower towers, simpler cable anchoring, and lower construction costs than cable-stayed bridges, making them a competitive alternative when height
Finite element analysis of jacketed reinforced concrete column subjected to u...eSAT Publishing House
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- Finite Element Investigation on Buckling Behaviour of Corrugated Web B...IRJET Journal
The document discusses a finite element analysis investigating the buckling behavior of corrugated web beams using ANSYS Workbench. Corrugated web beams have thicker flanges and a thinner corrugated web, which provides increased buckling resistance without needing stiffeners. The study models trapezoidally curved corrugated web beams with varying parameters like radius of curvature, web thickness, and flange thickness to compare their buckling strength to plate girders and straight beams. Validation of the ANSYS model is performed against previous experimental results, showing good agreement. Parametric studies then examine the effect of changing the radius of curvature, web thickness, and flange thickness on the load-deflection behavior and buckling resistance
This study analyzes the strengthening of reinforced concrete beams with openings using basalt fiber-reinforced polymer (BFRP) composites in the software ABAQUS. Five beams were modeled: a solid control beam, two beams with a single opening, and two with double openings. The opened beams were unstrengthened or wrapped with BFRP. All beams were simply supported and loaded at the midpoint. The load capacity and deflection of each beam were calculated and compared. Beams with openings showed reduced load capacity compared to the solid beam. Wrapping openings with BFRP increased load capacity, with double openings seeing greater recovery when strengthened. The ABAQUS models underestimated deflections compared to theoretical values, but
IRJET- Side Impact Glass Fiber Composite Beam and Enhanced Passenger Car ...IRJET Journal
1) The document discusses replacing a vehicle's traditional steel side impact beam with a composite beam made of glass fiber to improve crashworthiness, reduce weight, and increase fuel efficiency.
2) Finite element modeling was used to simulate the performance of different composite beam designs under side impact testing conditions specified by FMVSS 214 and IIHS standards.
3) Simulation results showed that the glass fiber composite beams experienced less intrusion than a traditional steel beam under side impact loads, indicating improved crashworthiness performance. The use of composite materials can thus enhance vehicle safety while also reducing weight to increase fuel efficiency.
SHEAR STRENGTHENING OF REINFORCED AND PRESTRESSED CONCRETE BEAM USING FRPIRJET Journal
1) The document discusses an experimental investigation on strengthening the shear capacity of reinforced concrete T-beams using basalt fiber reinforced polymer (BFRP) sheets.
2) A total of 22 concrete T-beams were tested with varying BFRP sheet configurations to determine their effects on the shear capacity of the beams. One beam served as a control while others were strengthened externally with BFRP sheets.
3) The results found that using BFRP sheets in a U-wrap configuration increased the shear capacity of beams by up to 12.66% compared to the control beam. However, some beams failed through debonding of the BFRP sheets. Anchoring the sheets was found to improve shear
STRUCTURAL BEHAVIOR OF RETROFIT BEAM COLUMN JUNCTION USING ANSYSIRJET Journal
- The document discusses the structural behavior of retrofitted beam-column joints using ANSYS. It analyzes the total deformation and maximum principal stress of retrofitted joints compared to their original condition.
- The methodology section describes modeling a reinforced concrete beam-column joint in ANSYS Workbench. It details assigning materials, importing the geometry, meshing, boundary conditions, and applying loads.
- The analysis is performed on models with and without carbon fiber reinforced polymer wrapping applied to the joints. The results are evaluated to assess the effectiveness of the retrofitting technique.
IRJET- CFRP Application in Retrofitting of RCC ColumnIRJET Journal
This study investigates the use of carbon fiber reinforced polymer (CFRP) sheets to strengthen reinforced concrete columns. A total of 54 columns of different shapes (circular, square, rectangular) and conditions (standard, deteriorated) are tested. The columns are loaded until failure to compare their ultimate load capacities. Standard columns achieve an average ultimate load of 15.5 tons for circular columns, 14 tons for square columns, and 13.5 tons for rectangular columns. Deteriorated columns have lower capacities of 14.33 tons, 13 tons, and 12.5 tons respectively. CFRP wrapping is then applied to standard columns to study how it increases load capacity and changes failure patterns compared to unwrapped columns.
Performance Analysis Of Retrofitted Beam Column Joint By Using FEMIRJET Journal
This document summarizes a study that analyzed the performance of a retrofitted beam-column joint using finite element modeling (FEM). The researchers modeled an existing beam-column joint in FEM software, assigned material properties, and meshed the model. They then applied loads and analyzed the model results, including stress, strain distribution, and deformation. The joint was then retrofitted with carbon fiber reinforced polymer (CFRP) and reanalyzed. The FEM results showed that retrofitting with CFRP increased the joint's strength and stiffness and reduced failure under seismic loads. The researchers concluded that CFRP is an effective material for retrofitting existing beam-column joints.
FEA of Ultra High Performance Fibre Reinforced Concrete -Encased Steel Compos...IRJET Journal
This document summarizes a study that used finite element analysis to compare the behavior of individual steel beams, UHPFRC beams, and composite UHPFRC-encased steel beams. It found that the composite beams exhibited an 8-12 times increase in ultimate load capacity compared to the individual materials. The composite beams failed in shear-flexure rather than local buckling. Additionally, the length of encased steel and the shear span to depth ratio influenced the composite beam behavior, with shorter encasement lengths and higher ratios decreasing load capacity and stiffness.
IRJET- Optimal Design and Analysis of a Stringer-Stiffened Composite Payload ...IRJET Journal
This document describes the optimal design and analysis of a composite payload adapter with two different configurations: a monocoque structure and a stringer-stiffened structure. Finite element modeling and analysis was performed to minimize the mass of each structure while meeting strength, stiffness, and buckling requirements. The results showed that using composite laminates instead of aluminum reduced the mass by over 50% for both configurations. Specifically, the optimized monocoque structure mass was reduced from 62.35kg (aluminum) to 30.31kg (composite) and the stringer-stiffened structure mass was reduced from 55.1kg to 21.79kg by using composites. The stringer-stiffened configuration was found to be lighter
IRJET- An Experimental Study on the Flexural Behavior of RC Beam using Carbon...IRJET Journal
This study experimentally evaluated the flexural behavior of reinforced concrete beams wrapped with carbon fiber reinforced polymer mesh and epoxy. Two beams were cast - a conventional beam and one wrapped with CFRP. When tested after 28 days of curing, the CFRP wrapped beam showed a 48% increase in flexural strength compared to the unwrapped beam. The ultimate load of the CFRP beam was 116kN compared to 63kN for the conventional beam. The flexural strength was 51.55N/mm2 for the CFRP beam and 28N/mm2 for the conventional beam, demonstrating that wrapping with CFRP fiber mesh and epoxy can significantly improve the flexural strength of reinforced concrete
IRJET- Behaviour of Prefabricated Steel Reinforced Concrete Column with C...IRJET Journal
This study analyzes the behavior of prefabricated steel reinforced concrete (PSRC) columns with and without a concrete core through finite element analysis. 30 column models were analyzed under various load eccentricities. The results show that PSRC columns with a concrete core had higher load capacities and better deformation behavior compared to columns without a core. Scattered square core specimens performed the best with a 5.1% higher load capacity due to a more uniform distribution of moment of inertia.
Comparison of Seismic Behaviour of a Typical Multi-Storey Structure with CFRP...IRJET Journal
This document compares the seismic behavior of multi-story buildings with different column designs through response spectrum analysis using ETABS software. It analyzes buildings with reinforced concrete columns, concrete filled steel tube (CFST) columns, CFST columns wrapped with carbon fiber reinforced polymer (CFRP), and CFST columns encased in an I-section steel beam. The analysis found that buildings with composite columns performed better against seismic forces, with story displacement reduced up to 17% and drift reduced up to 18% compared to buildings with reinforced concrete columns. CFRP wrapped CFST columns and I-section encased CFST columns were most effective at improving seismic behavior.
MECH461 Final Report REV 4_FOR LINKEDINStephen Roper
This document discusses the finite element analysis and design optimization of an electric bicycle structure using carbon fiber composites. The goal is to reduce mass by 31% while increasing stiffness by 4% over operating conditions. A literature review is presented on past research analyzing carbon fiber bicycle frames. The objectives are outlined as free size optimization to determine ideal ply orientations, dimension optimization to create manufacturable laminate thicknesses, and shuffle optimization to reorder plies for manufacturing. Finite element modeling is used to analyze different laminate designs and failure theories. The final design recommendation is a monocoque geometry with 31 plies of T300/976 carbon/epoxy optimized for improved structural performance.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Experimental Study on Flexural Behaviour of Steel Beam at Diverse LoadingIRJET Journal
This study experimentally analyzed the flexural behavior of steel channel sections (ISMC75) under different loading conditions. The channel section was tested as a simply supported beam under two-point loading applied at either the web or flange. When loaded at the flange, the channel section carried 47% higher loads than when loaded at the web, reaching its plastic moment capacity. Deflections were also higher under flange loading. The results provide data on the flexural behavior and load-carrying capacity of channel sections based on the point of load application.
Structural Health Monitoring and Strengthening Of BridgesEditor IJCATR
This paper presents one bridge which were either rehabilitated or strengthened by using FRP composites. The resulting structure was then tested for the effect after using FRP composites for Rehabilitation and strengthening. In this paper, Structural Health Monitoring basics are covered and need for SHM in future in or India scenario. Use of FRP composites in Rehabilitation and Strengthening of structures is becoming increasingly popular and is opening new possibilities in construction and rehabilitation of structures.
IRJET- Behavior of Ultra High Performance Concrete (UHPC) and Normal Conc...IRJET Journal
This document presents a study comparing the behavior of normal concrete (NC) columns, ultra-high performance concrete (UHPC) columns, and compound columns made of both NC and UHPC under eccentric loads. Nine reinforced concrete columns were tested under different load conditions. The results showed that NC columns failed progressively with cracks developing gradually, while UHPC columns failed suddenly in a brittle manner. Compound columns failed suddenly with little warning. UHPC achieved much higher compressive, tensile, and flexural strengths compared to NC. As eccentricity of the load increased, the load capacity of NC columns decreased significantly and their stiffness reduced.
IRJET- Study of Static Analysis on Conventional and Oblique Prestressed C...IRJET Journal
This document presents a study comparing the static analysis of conventional and oblique prestressed concrete bridge superstructures. The study models and analyzes both types of bridge designs using CSi Bridge software. Conventional prestressing uses tendons running longitudinally along the girders, while oblique prestressing orients the tendons at a 45 degree angle to apply prestress transversely. The analysis found that oblique prestressing can eliminate the need for transverse joints and reduce slab thickness compared to conventional methods. Increasing the spacing of oblique tendons was also analyzed to study its effects.
IRJET- Experimental and Analytical Performance of Composite Laminated Timber ...IRJET Journal
This document analyzes the performance of composite laminated timber beams reinforced with cold formed steel sections through experimental testing and analytical modeling. Experimental bending tests were conducted on laminated rubber wood beams reinforced with a cold formed Z-section steel profile. Analytical models of the composite beams were also created in ANSYS software to analyze different steel section shapes. The results showed that reinforcing the laminated timber beams significantly increased their load bearing capacities compared to unreinforced beams. Composite beams using double C and hat steel sections performed best, with double C sections showing the highest load capacity and lowest deflection.
Design and Analysis of Mono Composite Leaf Spring by Varying Thickness using FEAIOSR Journals
This document summarizes a study on the design and analysis of a mono composite leaf spring with varying thickness using finite element analysis (FEA). A glass fiber reinforced composite (GFRC) leaf spring was modeled and analyzed in ANSYS and compared to a conventional steel leaf spring. Static analysis was performed to evaluate stress and deflection under a 300kg load with leaf spring thicknesses of 28mm, 30mm, and 32mm. Both analytical calculations and FEA results showed that the composite leaf spring had lower stress and deflection compared to the steel spring, with performance improving as thickness increased. The composite leaf spring provides benefits such as reduced weight, increased damping, and better corrosion resistance compared to the conventional steel spring.
IRJET- A Review on Comparative Study between Girder Bridge and Extradosed...IRJET Journal
This document summarizes and compares girder bridges and extradosed bridges. It first provides background on extradosed bridges, noting they are a hybrid of girder and cable-stayed bridges. The structural behavior of extradosed bridges differs from cable-stayed bridges. It then describes common girder bridge types like plate girder, box girder, I-beam, and T-beam bridges. The document reviews literature on bridge modeling and analysis, including a study comparing the response of extradosed and cable-stayed bridge decks. It concludes that extradosed bridges have lower towers, simpler cable anchoring, and lower construction costs than cable-stayed bridges, making them a competitive alternative when height
Finite element analysis of jacketed reinforced concrete column subjected to u...eSAT Publishing House
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- Finite Element Investigation on Buckling Behaviour of Corrugated Web B...IRJET Journal
The document discusses a finite element analysis investigating the buckling behavior of corrugated web beams using ANSYS Workbench. Corrugated web beams have thicker flanges and a thinner corrugated web, which provides increased buckling resistance without needing stiffeners. The study models trapezoidally curved corrugated web beams with varying parameters like radius of curvature, web thickness, and flange thickness to compare their buckling strength to plate girders and straight beams. Validation of the ANSYS model is performed against previous experimental results, showing good agreement. Parametric studies then examine the effect of changing the radius of curvature, web thickness, and flange thickness on the load-deflection behavior and buckling resistance
This study analyzes the strengthening of reinforced concrete beams with openings using basalt fiber-reinforced polymer (BFRP) composites in the software ABAQUS. Five beams were modeled: a solid control beam, two beams with a single opening, and two with double openings. The opened beams were unstrengthened or wrapped with BFRP. All beams were simply supported and loaded at the midpoint. The load capacity and deflection of each beam were calculated and compared. Beams with openings showed reduced load capacity compared to the solid beam. Wrapping openings with BFRP increased load capacity, with double openings seeing greater recovery when strengthened. The ABAQUS models underestimated deflections compared to theoretical values, but
IRJET- Side Impact Glass Fiber Composite Beam and Enhanced Passenger Car ...IRJET Journal
1) The document discusses replacing a vehicle's traditional steel side impact beam with a composite beam made of glass fiber to improve crashworthiness, reduce weight, and increase fuel efficiency.
2) Finite element modeling was used to simulate the performance of different composite beam designs under side impact testing conditions specified by FMVSS 214 and IIHS standards.
3) Simulation results showed that the glass fiber composite beams experienced less intrusion than a traditional steel beam under side impact loads, indicating improved crashworthiness performance. The use of composite materials can thus enhance vehicle safety while also reducing weight to increase fuel efficiency.
SHEAR STRENGTHENING OF REINFORCED AND PRESTRESSED CONCRETE BEAM USING FRPIRJET Journal
1) The document discusses an experimental investigation on strengthening the shear capacity of reinforced concrete T-beams using basalt fiber reinforced polymer (BFRP) sheets.
2) A total of 22 concrete T-beams were tested with varying BFRP sheet configurations to determine their effects on the shear capacity of the beams. One beam served as a control while others were strengthened externally with BFRP sheets.
3) The results found that using BFRP sheets in a U-wrap configuration increased the shear capacity of beams by up to 12.66% compared to the control beam. However, some beams failed through debonding of the BFRP sheets. Anchoring the sheets was found to improve shear
STRUCTURAL BEHAVIOR OF RETROFIT BEAM COLUMN JUNCTION USING ANSYSIRJET Journal
- The document discusses the structural behavior of retrofitted beam-column joints using ANSYS. It analyzes the total deformation and maximum principal stress of retrofitted joints compared to their original condition.
- The methodology section describes modeling a reinforced concrete beam-column joint in ANSYS Workbench. It details assigning materials, importing the geometry, meshing, boundary conditions, and applying loads.
- The analysis is performed on models with and without carbon fiber reinforced polymer wrapping applied to the joints. The results are evaluated to assess the effectiveness of the retrofitting technique.
IRJET- CFRP Application in Retrofitting of RCC ColumnIRJET Journal
This study investigates the use of carbon fiber reinforced polymer (CFRP) sheets to strengthen reinforced concrete columns. A total of 54 columns of different shapes (circular, square, rectangular) and conditions (standard, deteriorated) are tested. The columns are loaded until failure to compare their ultimate load capacities. Standard columns achieve an average ultimate load of 15.5 tons for circular columns, 14 tons for square columns, and 13.5 tons for rectangular columns. Deteriorated columns have lower capacities of 14.33 tons, 13 tons, and 12.5 tons respectively. CFRP wrapping is then applied to standard columns to study how it increases load capacity and changes failure patterns compared to unwrapped columns.
Performance Analysis Of Retrofitted Beam Column Joint By Using FEMIRJET Journal
This document summarizes a study that analyzed the performance of a retrofitted beam-column joint using finite element modeling (FEM). The researchers modeled an existing beam-column joint in FEM software, assigned material properties, and meshed the model. They then applied loads and analyzed the model results, including stress, strain distribution, and deformation. The joint was then retrofitted with carbon fiber reinforced polymer (CFRP) and reanalyzed. The FEM results showed that retrofitting with CFRP increased the joint's strength and stiffness and reduced failure under seismic loads. The researchers concluded that CFRP is an effective material for retrofitting existing beam-column joints.
FEA of Ultra High Performance Fibre Reinforced Concrete -Encased Steel Compos...IRJET Journal
This document summarizes a study that used finite element analysis to compare the behavior of individual steel beams, UHPFRC beams, and composite UHPFRC-encased steel beams. It found that the composite beams exhibited an 8-12 times increase in ultimate load capacity compared to the individual materials. The composite beams failed in shear-flexure rather than local buckling. Additionally, the length of encased steel and the shear span to depth ratio influenced the composite beam behavior, with shorter encasement lengths and higher ratios decreasing load capacity and stiffness.
IRJET- Analytical Study on Strengthening of RC Tee Beams with Composite Mater...IRJET Journal
1) The document analyzes the behavior of reinforced concrete tee beams strengthened with composite materials like carbon fiber reinforced polymer (CFRP) and glass fiber reinforced polymer (GFRP) using ANSYS software.
2) A tee beam was modeled in ANSYS and analyzed with steel, CFRP and GFRP reinforcement. Results found that deformation was reduced by 77.58% with GFRP and 62.42% with CFRP compared to steel. Flexural strength increased by 5.88% with GFRP and 35.79% with CFRP. Shear stress decreased by 22.15% with GFRP and 20.88% with CFRP.
3) In conclusion,
IRJETI Comparison of RC Beam-Column Joint with GFRC Beam-Column Joint using S...IRJET Journal
This study compares reinforced concrete (RC) beam-column joints to glass fiber reinforced concrete (GFRC) beam-column joints using finite element analysis in ANSYS. A corner beam-column joint from a two-story building was modeled in SolidWorks and analyzed in ANSYS under 10 N/mm and 20 N/mm loads. The GFRC joint showed significantly less deformation than the RC joint, with deformations reduced by 4-6% when using GFRC. Therefore, using GFRC can improve joint performance by reducing deformations.
IRJET- Retrofitting of Reinforced Concrete Beam using Carbon Fiber Reinforced...IRJET Journal
This document summarizes an experiment that tested the flexural behavior of reinforced concrete beams strengthened with carbon fiber reinforced polymer (CFRP) fabric. Four beams were cast and cured for 28 days. One beam was used as a control, while the other three were preloaded to induce initial cracking before being retrofitted with CFRP fabric. The CFRP strengthened the beams and increased their ultimate load capacity. The experiment investigated the effect of the CFRP fabric and its orientation on the beams' load capacity and failure mode.
Structural Performance of Jacketing in Reinforced Concrete Columns: A Brief S...IRJET Journal
This document summarizes research on retrofitting reinforced concrete columns through jacketing. It discusses using reinforced concrete jacketing, fiber reinforced polymer wrapping, and steel jacketing to strengthen seismic deficient columns. A typical residential building located in a high seismic zone of India is modeled and analyzed to compare the structural behavior of columns retrofitted with each technique. The analysis found that fiber reinforced polymer jacketing was the most efficient at improving column capacity. Reinforced concrete jacketing was best at reducing inter-story drift ratios of the structure. The document concludes that retrofitting key structural members can reduce inter-story drift to meet code requirements and improve the seismic performance of the building.
IRJET- Behavior of RC T-Beam Strengthen using Basalt Fiber Reinforced Pol...IRJET Journal
This document describes an experimental study on strengthening reinforced concrete T-beams using basalt fiber reinforced polymer (BFRP) sheets. Seven T-beams were cast, with one control beam and six strengthened beams. The strengthened beams were reinforced with varying configurations and layers of BFRP sheets. Testing was conducted to failure under static loading. The results showed that externally bonded BFRP significantly increased the flexural capacity of the beams. U-wrap configuration with BFRP was found to be the most effective strengthening method. Data on load, deflection, and failure modes was collected and analyzed to evaluate the effect of different BFRP configurations on structural performance.
AN EXPERIMENTAL STUDY ON CFDST COLUMN UNDER AXIAL LOADINGIRJET Journal
The document presents an experimental study on Circular-Filled Double-Skin Tubular (CFDST) columns under axial loading. CFDST columns with circular hollow section inner and outer tubes are tested to investigate their behavior and properties. The testing involves subjecting CFDST column specimens to axial compression loads using a Universal Testing Machine to determine load-carrying capacity, deformation patterns, and failure mechanisms. Results from the experimental testing are then validated using finite element analysis in ANSYS software. The study finds reasonable agreement between computational predictions and experimental results, providing validation of the computational models.
Study of elastic properties of RC beam under Static LoadIRJET Journal
This document summarizes a study that used finite element analysis to determine the modulus of elasticity of reinforced concrete beams with varying parameters such as grade of concrete, percentage of steel reinforcement, and spacing of shear stirrups. Finite element models of reinforced concrete beams were created in ANSYS with different concrete grades (M20, M25, M30) and percentages of steel reinforcement (0.34% to 0.74%). The models were analyzed under static loads to determine properties like cracking load and deflection. Load-deflection curves showed that beams with reinforcement had higher elastic limits and failure loads compared to plain concrete beams.
IRJET- Flexural Strengthening of Pre-Cracked Corroded RC Beams using CFRP SheetsIRJET Journal
The document summarizes an experimental investigation on flexural strengthening of pre-cracked corroded reinforced concrete beams using carbon fiber reinforced polymer sheets. Corrosion was induced in pre-cracked beams using an accelerated corrosion process. The corroded beams were then strengthened in flexure using CFRP sheets. Parameters such as CFRP sheet thickness, width, and bond length were varied. Test results showed that CFRP strengthening increased the ultimate load capacity and stiffness of corroded beams compared to unstrengthened beams. Beams with thicker and wider CFRP sheets showed higher load capacities. CFRP strengthening also reduced deflections at failure compared to corroded beams.
This document provides a literature review on rehabilitation methods for beam-column joints using nano-composite ferrocement jacketing with carbon fiber reinforced polymer (CFRP). It discusses various retrofitting techniques studied in previous research, including ferrocement jacketing, FRP bonding, and use of nano-materials in cement composites. The literature review examines how these techniques improve properties like strength, ductility, and durability when used to strengthen beam-column joints. It also summarizes several studies that investigated the effects of ferrocement jacketing, CFRP wraps, and nano-silica additions on reinforced concrete elements. The document concludes that while integrated use of nano-composite cementitious jacketing and CFRP shows potential
International Journal of Engineering and Science Invention (IJESI)inventionjournals
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
Stiffening and Strengthening of Deteriorated Cellular Beams by Local Post- Te...IRJET Journal
This document discusses research on strengthening deteriorated cellular beams through local post-tensioning. Cellular beams are prone to deterioration over time due to their increased depth and exposure. The study aims to introduce local post-tensioning as a simple, low-cost method to stiffen and strengthen cellular beams without adding new material. Local post-tensioning involves attaching reinforcing bars to the bottom of the beam and tensioning them using jacks to improve load capacity. Deteriorated beams were modeled and analyzed in ANSYS. The results showed that local post-tensioning combined with stiffeners was the most effective approach, able to recover over 180% of the original load capacity.
IRJET - Modelling Analysis and Retrofitting of Flanged Beams with GFRP Confin...IRJET Journal
This document analyzes the retrofitting of reinforced concrete flanged beams with glass fiber reinforced polymer (GFRP) confinement to improve structural behavior. Finite element analysis is conducted using ANSYS software to model retrofitted beams and compare their load-deflection behavior. Retrofitting with full-surface GFRP wrapping is found to increase beam strength by 49.06% compared to conventional beams. Retrofitting with steel plates is also analyzed and found to increase strength up to 51.03% depending on placement. The research aims to investigate GFRP and steel retrofitting as alternatives to improve shear capacity of deficient beams.
Performance evaluation of hybrid double T-box beam girder in steel structureIRJET Journal
This document discusses the performance evaluation of a hybrid double T-box beam girder (HDTBG) in steel structures. The study models various HDTBG configurations using finite element analysis software to compare their flexural behavior to conventional beams. It finds that the HDTBG has equivalent performance to an ISMB150 beam and better performance than an ISMB200 beam when their weights are equal. The study then analyzes HDTBGs with different combinations of low, medium, and high tensile grade steel in the web and flange. It determines that configurations with a medium or high tensile web and varying flange grades see a 5-20% improvement in moment capacity compared to a baseline low tensile web and fl
IRJET- Experimental Investigation on RCC Long Hollow Circular Columns with FR...IRJET Journal
This document summarizes an experimental investigation on reinforcing concrete columns with fiber-reinforced polymer (FRP) jacketing. Circular reinforced concrete columns with both solid and hollow cross-sections were tested under axial compression loads. The columns were either conventionally reinforced or confined with external FRP wrapping. Test results showed that FRP-confined hollow columns exhibited a 35% increase in ultimate load capacity compared to unconfined hollow columns. FRP jacketing also improved ductility by reducing axial and lateral deformations at high loads. The study demonstrates that FRP confinement enhances the strength and deformation capacity of hollow reinforced concrete columns.
IRJET- EBR and GM Methods for External Flexural Strengthening of RC BeamsIRJET Journal
This document summarizes an experimental study that compares two methods for strengthening reinforced concrete beams externally with carbon fiber reinforced polymer (CFRP) sheets: externally bonded reinforcement (EBR) and grooving method (GM).
Fourteen reinforced concrete beams were tested, including a control beam and beams strengthened with EBR or GM using CFRP sheets. Beams strengthened with GM showed higher load capacities, up to 79% more than the control beam, while EBR increased capacity up to 28%. Failure of EBR beams was debonding of CFRP sheets, while GM beams failed by CFRP rupture except one with excessive CFRP layers that debondded. GM was found to be more effective at increasing load
Similar to IRJET- Finite Element Analysis of Retrofitting of RC Beam with CFRP using Abaqus (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.
Applications of artificial Intelligence in Mechanical Engineering.pdfAtif Razi
Historically, mechanical engineering has relied heavily on human expertise and empirical methods to solve complex problems. With the introduction of computer-aided design (CAD) and finite element analysis (FEA), the field took its first steps towards digitization. These tools allowed engineers to simulate and analyze mechanical systems with greater accuracy and efficiency. However, the sheer volume of data generated by modern engineering systems and the increasing complexity of these systems have necessitated more advanced analytical tools, paving the way for AI.
AI offers the capability to process vast amounts of data, identify patterns, and make predictions with a level of speed and accuracy unattainable by traditional methods. This has profound implications for mechanical engineering, enabling more efficient design processes, predictive maintenance strategies, and optimized manufacturing operations. AI-driven tools can learn from historical data, adapt to new information, and continuously improve their performance, making them invaluable in tackling the multifaceted challenges of modern mechanical engineering.
artificial intelligence and data science contents.pptxGauravCar
What is artificial intelligence? Artificial intelligence is the ability of a computer or computer-controlled robot to perform tasks that are commonly associated with the intellectual processes characteristic of humans, such as the ability to reason.
› ...
Artificial intelligence (AI) | Definitio
Design and optimization of ion propulsion dronebjmsejournal
Electric propulsion technology is widely used in many kinds of vehicles in recent years, and aircrafts are no exception. Technically, UAVs are electrically propelled but tend to produce a significant amount of noise and vibrations. Ion propulsion technology for drones is a potential solution to this problem. Ion propulsion technology is proven to be feasible in the earth’s atmosphere. The study presented in this article shows the design of EHD thrusters and power supply for ion propulsion drones along with performance optimization of high-voltage power supply for endurance in earth’s atmosphere.
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...shadow0702a
This document serves as a comprehensive step-by-step guide on how to effectively use PyCharm for remote debugging of the Windows Subsystem for Linux (WSL) on a local Windows machine. It meticulously outlines several critical steps in the process, starting with the crucial task of enabling permissions, followed by the installation and configuration of WSL.
The guide then proceeds to explain how to set up the SSH service within the WSL environment, an integral part of the process. Alongside this, it also provides detailed instructions on how to modify the inbound rules of the Windows firewall to facilitate the process, ensuring that there are no connectivity issues that could potentially hinder the debugging process.
The document further emphasizes on the importance of checking the connection between the Windows and WSL environments, providing instructions on how to ensure that the connection is optimal and ready for remote debugging.
It also offers an in-depth guide on how to configure the WSL interpreter and files within the PyCharm environment. This is essential for ensuring that the debugging process is set up correctly and that the program can be run effectively within the WSL terminal.
Additionally, the document provides guidance on how to set up breakpoints for debugging, a fundamental aspect of the debugging process which allows the developer to stop the execution of their code at certain points and inspect their program at those stages.
Finally, the document concludes by providing a link to a reference blog. This blog offers additional information and guidance on configuring the remote Python interpreter in PyCharm, providing the reader with a well-rounded understanding of the process.
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.