International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 05 | May 2023
p-ISSN: 2395-0072
www.irjet.net
“A REVIEW STUDY ON PUSHOVER ANALYSIS OF SYMMETRIC BUILDING ON FLAT & SLOPING SURFACE” Jigna B. Chudasama1, Aakash Suthar2 1Student Civil Engineering Department, L.J.I.E.T. Ahmedabad, Gujrat, India 2Assistance Professor Structural Engineering Department, L.J.I.E.T. Ahmedabad, Gujrat, India
-------------------------------------------------------------------------***---------------------------------------------------------------------Pushover analysis is becoming more and more popular as a Abstract – In this study the seismic response of a different storied reinforced concrete building is analysed by displacement-controlled pushover analysis. It is assumed to be located in different zone. This article provides a summary of the pushover analysis performance of flat & sloping ground building as determine by ATC-40 and FEMA-356. The pushover analysis based nonlinear static process(NSP), which is commonly used in real world application for building evaluation and design verification, has increased in popularity. However, the NSP can only respond in a single mode. Therefore, it applies to low rise buildings where the basic vibration mode dominates the behaviour. The pushover analysis done using ETABS. To evaluate the performance of the structure, it has been researched how dynamic features including base shear, roof displacement, mode shape, fundamental natural period, ductility ratio, and hinge status were induced in the building models.
simple method for seismic performance evaluation of buildings. day by day people are attempting to study and use the method in analysis to RC frames, RC walls, steel and masonry structures recently.
Key Words: Seismic analysis, Pushover analysis, response spectrum, Time history analysis, Base shear, Displacement, Story shear.
This study four vertical geometric irregular and one regular RC building frames are selected and it analyse all the frames by using ETABS. The seismic data and structural design data for all the frames is similar. To get performance point, the RC building frame with G+7 storeys is considered. There are 6 bays in each of the two directions. The standard storey height is 3 m, and the ground storey height is the same. The bay width is 3m in Y direction and 4.5m in X direction.
Modal of pushover analysis comparing the peak inelastic response of a different storey building determined that the approximate procedure provides good estimates of displacement and story drifts, and identifies locations of most plastic hinges.
2. LITRETURE REVIEW 1. Comparative Pushover Analysis of High-Rise RCC Building Frame with and Without Vertical irregularities Author: Patil Sadhana M., D.N. Shinde Journal: International Research Journal of Technology
1. INTRODUCTION Earthquakes have historically occurred in the Indian subcontinent. Large quantities of hilly terrain may be found in India’s north and north-east, which are classified as seismic zones III, IV, and V. in this area, it is inevitable that multistorey RC buildings will be resting on hill slopes. Because they are uneven and asymmetrical in vertical directions, building resting on sloping and flat surface have quite different dynamic properties from those of building resting on flat terrain.
Engineering
Comparison to a building frame without vertical irregularity, the base shear at the performance point is lower for a structure with vertical irregularity.
In natural disasters like earthquakes, damage to or collapse of buildings and other man-made structures is the primary cause of catastrophes. A reliable method for determining plastic hinge mechanism in structure and for predicting seismic demands is nonlinear response history analysis.
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Fig.1 Elevation and 3D view of model M-II
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