Earthquake resistant building
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This document summarizes the analysis and design of a 7-story residential building in Mumbai for seismic zone III according to Indian codes. A 3D model of the building was created in STAAD.Pro software and the structural elements like beams, columns, slabs, staircase, water tank, and raft foundation were designed both manually and using STAAD.Pro. The building was analyzed for seismic loads according to Indian codes to ensure earthquake resistance of the structure in Mumbai. Ductile detailing was also considered in the design to improve the earthquake resistance of the building.
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1 INTRODUCTION
2 EARTHQUAKE THEORY
3 EARTHQUAKE MAGNITUDE AND ENERGY
4 EFFECTS OF EARTHQUAKES
5 MAJOR EARTHQUAKES
6 NOTABLE EARTHQUAKES AND THEIR ESTIMATED
MAGNITUDE
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8 SEISMIC DESIGN PHILOSOPHY
9 EFFECT OF EARTHQUAKE ON REINFORCED CONCRETE BUILDINGS
10 ROLES OF FLOOR AND MASONRY WALLS SLABS
11 STRENGTH HIERARCHY
12 EARTHQUAKE RESISTANT BUILDING
13 EARTHQUAKE DESIGN PHILOSOPHY
14 REMEDIAL MEASURES TO MINIMISE THE LOSSES DUE TO EARTHQUAKES
15 EARTHQUAKE RESISTANT BUILDING CONSTRUCTION WITH REINFORCED HOLLOW CONCRETE BLOCK(RHCBM)
16 STRUCTURAL FEATURES
17 STRUCTURAL ADVANTAGES
18 CONSTRUCTIONAL ADVANTAGES
19 ARCHITECTURAL AND OTHER ADVANTAGES
20 STUDIES ON THE COMPARATIVE COST ECONOMICS OF RHCBM
21 MID-LEVEL ISOLATION 32-34
22 EARTHQUAKE RESISTANCE BUILDING USING SEISMIC ISOLATION SYSTEMS WITH SLIDING ON CONCAVE SURFACE
23 DESCRIPTION
24 CONCEPT OF FRICTION PENDULUM BEARING
25 SLIDING PENDULUM SEISMIC ISOLATION SYSTEM
26 BACKGROUND OF THE INVENTION
27 BRIEF SUMMARY OF THE INVENTION
28 DETAILED DESCRIPTION OF THE INVENTION
29 ESTIMATION
30 CONCLUSION
31 BIBLIOGRAPHY
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3 EARTHQUAKE MAGNITUDE AND ENERGY
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6 NOTABLE EARTHQUAKES AND THEIR ESTIMATED
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1. Plate tectonics theory explains how the lithosphere is broken into plates that move relative to each other, causing earthquakes along plate boundaries.
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3. Seismic design codes aim to prevent collapse from major earthquakes through concepts like ductility, overstrength, and redundancy while allowing some damage from minor quakes.
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Concept of Base Isolation
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Comparison of Fixed Base Structure and Isolated Base Structure
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Base Isolation in Real Buildings
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Seismic Retrofitting Techniques
Seminar Presentation on the basics of seismic retrofit to prevent structural damage to buildings, bridges, etc. from earthquake and wind loads.
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Those are all excellent questions to consider when designing earthquake-resistant buildings. Safety should be the top priority.
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hie guys
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Emporis standards define a high rise building as “A multi-storey structure between 35-100 meters tall”. When buildings become taller and taller, the effect of lateral load on the structure comes into existence. The lateral action on the structure is majorly induced by the wind and seismic force.
They needs a lateral load resisting system to maintain the structure stable when lateral loads are applied to them.
The different lateral load resisting systems in the high rise building are
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This document analyzes a G+25 reinforced concrete structure with shear walls under seismic loads using STAAD Pro V8i software. Five models are considered: a conventional building without shear walls, and buildings with shear walls placed at intermediate, corner, middle, and core locations. The models are analyzed and their base shear, displacement, story drift, shear force, and bending moment are compared. Previous studies on using shear walls to resist seismic forces are summarized. The goal is to determine which shear wall location provides the best seismic resistance. Load combinations from Indian codes are applied to the models for analysis.
IRJET- https://www.irjet.net/archives/V6/i7/IRJET-V6I7339.pdf
This document presents a study on the seismic analysis of asymmetric multi-storied frame-shear wall buildings considering soil-structure interaction. The study models and analyzes 30-story buildings with C, T, and L shaped plans both with and without soil flexibility to understand the effects of soil-structure interaction. The models are analyzed in ETABS using the response spectrum method and Winkler soil springs. Key results found that lateral displacements, drifts, and base shear are higher for buildings considering soil flexibility compared to fixed base structures. Additionally, the addition of shear walls and changing their positions was found to reduce displacements and drifts. The maximum displacements occurred in L shaped plans on soft soil, which decreased with stiffer
COMPARATIVE STUDY ON SEISMIC ANALYSIS OF CONVENTIONAL SLAB AND FLAT SLAB STRU...
This document presents a comparative study on the seismic analysis of conventional slab and flat slab structures with and without shear walls using ETABS software. A 12-story building model with a conventional slab, flat slab without shear walls, and flat slab with shear walls at corners is created. The buildings are analyzed for different seismic zones and soil types according to Indian standards. Results for parameters like story displacement, story drift, story stiffness, and natural period are presented in graphs for each model and seismic zone using both the equivalent static method and response spectrum method. The study found that the flat slab structure with shear walls performed best with lower displacement, drift, and higher stiffness. Increasing the seismic zone was found to increase displacement and drift while keeping stiffness
IRJET- Performance of Flat Slabs and Flat Plates in High Seismic Zone with Va...
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IRJET- A Parametric Study on the Siesmic Performance of Flat Slab Multi-S...
This document summarizes a research paper that analyzes the seismic performance of 10-story flat slab buildings with bracing subjected to different types of irregularities.
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The results show that the building with torsional irregularities experienced the highest story displacements, around 24% more than the regular building. Buildings with vertical geometric and stiffness irregularities also had increased story displacements compared to the regular building, but to a lesser extent.
ANALYSIS AND DESIGN OPTIMIZATION OF SHEAR-WALL IN CASE OF HIGH-RISE BUILDING ...
The document analyzes and optimizes the design of shear walls in a high-rise building using ETABS software. It discusses modeling a 10-story building in ETABS with and without shear walls, and making design adjustments to the shear wall configuration. Results for story displacement and drift are compared between the models. The optimized model with design adjustments to the shear wall configuration showed reductions in story displacement and drift compared to the initial model without shear walls.
IRJET- Analytical Study of Punching Shear in Flat Slab - Review Paper
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Seismic Performance of Flat Slab Structures Under Static and Dynamic Loads
This document presents research on analyzing the seismic performance of flat slab structures under static and dynamic loads. Models of flat slab structures with varying lateral stiffness were created, from flexible columns only to stiffer combinations of columns and shear walls. The models were subjected to seismic and dynamic loads, and the structural responses like natural periods, base shear, displacement, and inter-story drift were studied. The results showed that providing edge beams and shear walls strengthened flat slab structures seismically. Key aspects analyzed included the natural period, base shear, displacement, and inter-story drift of flat plate and flat slab structures with different configurations, under static and dynamic seismic loads.
Seismic Performance and Shear Wall Position Assessment of the Buildings Resti...
This document analyzes the seismic performance of buildings resting on sloping ground with different shear wall configurations using ETABS software. A 6-storey building model is analyzed on slopes of 15, 20, and 25 degrees with 8 different shear wall layouts. Results show that maximum story displacement and base shear decrease while story drift ratio decreases as more shear walls are added. Placing shear walls on all sides is most effective at reducing seismic response. As slope increases, story displacement and base shear also increase. Shear walls are most effective at reducing displacement along the slope direction. Therefore, shear walls improve seismic performance of buildings on sloping sites, and placement is important to consider slope direction.
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Earthquake resistant building
- 2. INTRODUCTION Analysis of a G+7 storied residential building for seismic zone III as per IS 1893: 2002. The building is a R.C.C. framed structure with shear walls, columns and raft footing. Loads and load combinations pertaining to IS 456:2000, IS 1893:2002, IS 875:1987(Part-1& 2) . Reinforcement detailing according to IS 456 : 2000 and IS 13920:1998
- 3. • Static analysis principles for determination of seismic hazard parameter to ensure seismic resistant of structure. • Design and analysis of G+7 storey residential building in Mumbai city using STAAD.PRO software with more emphasis on earthquake resistance • To venture into the future necessity of the country that is high rise buildings especially in cities to solve housing problems.
- 4. Architectural design and drawing using AutoCAD. 3D modelling of a frame structure, using STAAD. Pro V8i. Analysis of the frame using structural software STAAD.Pro- V8i. Design of the frame using structural software STAAD Pro- V8i.
- 5. Design of slab using manual calculations. Manual design of water tank using WSM. Manual design of dog - legged staircase. Design of Mat foundation manually.
- 6. STAAD Pro is an integrated engineering software package capable of structural analysis, design and drafting, all within the same program. STAAD Pro is the professional’s choice for steel, concrete, timber, aluminium and cold-formed steel design of low and high-rise buildings, culverts, petrochemical plants, tunnels, bridges, piles and much more.
- 7. IMPORTANCE OF DESIGN SEISMIC CODES Good structural configuration Lateral strength Adequate stiffness Good ductility
- 8. Earthquake resistant design principle The basic principles of earthquake resistant design.
- 9. EARTHQUAKE RESISTING STRUCTURAL SYSTEM Moment resisting frame :
- 10. Design Seismic Base Shear The total design lateral force or design seismic base shear (Vb) along any principal direction shall be determined by the following expression: Vb = Ah W Where, Ah = Design horizontal seismic coefficient W = Seismic weight of all the floors
- 11. Z = Zone factor I = Importance factor depending on the functional use of the structure R = Response reduction factor Sa/g = Average response acceleration coefficient for rock or soil
- 12. T=0.09H/√D Where, H= Height of building d= Base dimension of the building at the plinth level, in m, along the considered direction of the lateral force. Fundamental Natural Period
- 15. BEAM
- 16. COLUMN
- 17. STAIRCASE
- 19. MAT FOUNDATION
- 21. CONCLUSION Zone III EARTHQUAKE ALMOST RESIST 3-4.5 RISHTER SCALE. INITIAL INVESTMENT IS MORE. ACIDENTAL CAUSE EFFECTIVE.