Abstract
Multi-storey buildings tend to get damaged mainly during earthquake. Seismic analysis is a tool for the estimation of structural response in the process of designing earthquake resistant structures and/or retrofitting vulnerable existing structures. The principle purpose of this work is to analyze and design a building with a shear wall and also to find the appropriate position of shear wall that result in maximum resistance towards lateral forces and minimum displacement of the structure. In this study, a G+7 multi-storey building of 15 m ×20 m in plan area has been chosen and modelled using ETABS. The developed model was validated by solving manually and the results were validated in ETABS. Thereafter, 4 different new plans were modelled in ETABS located in the same earthquake zone area. These plans have shear wall concepts are implemented on the building at four different locations. Seismic, vibration and response spectrum analysis were performed on these structures. Salient parameters such as storey stiffness, storey displacement and storey drift were computed using the ETABS model. These were compared with that of the frame having no shear walls. By comparing the results obtained at different shear wall locations, the best plan with the shear wall having minimum lateral storey displacement and maximum stiffness is suggested for this location.
Highlights
Ground motions occur in a random manner in all directions radiating from hypo center during an earthquake event
It was solved and the results are validated, using this methodology a new plan was implemented in same area, as well shear wall concepts are implemented on the building at different locations
By conducting the software analysis for the structures following conclusions are drawn: 1. The displacement is decreased in shear wall structure as compared to framed structure
Summary
Ground motions occur in a random manner in all directions radiating from hypo center during an earthquake event These random ground motions can cause structures to vibrate and induces inertial forces in them. The aim of present work is to study effect of the location of shear wall on lateral capacity resisting of the structure. After analyzing ten storey building for earthquake located in zone II, zone III, zone IV and zone V essential parameters like lateral displacement, story drift and total cost required for ground floor were found in both the cases by replacing column with shear wall and conclusion was drawn that shear wall in short span at corner (model 4) is economical as compared with other models. Lateral forces are calculated manually and validated with ETABS results, based on this new plan (model 2) is prepared
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