A comparative study on the response of the L-shaped base isolated multi-storey building to near and far field earthquake ground motion

This study aims to understand the behaviour of a base isolated l-shaped building under far field and near field earthquake ground motion. A ten-storey l-shaped building was considered for the study and modelled using SAP2000, which is finite-element-based software. At first, a non-isolated model was...

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Main Authors: Jitendra Gudainiyan, Praveen Kumar Gupta
Format: Article
Language:English
Published: Elsevier 2023-05-01
Series:Forces in Mechanics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666359723000264
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author Jitendra Gudainiyan
Praveen Kumar Gupta
author_facet Jitendra Gudainiyan
Praveen Kumar Gupta
author_sort Jitendra Gudainiyan
collection DOAJ
description This study aims to understand the behaviour of a base isolated l-shaped building under far field and near field earthquake ground motion. A ten-storey l-shaped building was considered for the study and modelled using SAP2000, which is finite-element-based software. At first, a non-isolated model was created, and the required data was generated in order to develop an isolated model. After that, a non-linear time history analysis was performed, and the results of storey displacement, torsional irregularity, and base shear have been discussed for the base isolated model and the non-isolated model. The fundamental time period of base isolated l-shaped building was found to be 2.56 s while the base model had fundamental time period of 0.88 s. It was found in this study that higher peak ground acceleration (PGA) and peak ground velocity (PGV) of the ground motion led to higher storey displacement, storey drift, and base shear but a lower torsional irregularity ratio under near field ground motion, while torsional irregularity ratio of base isolated building was found to be increased under far field ground motion.
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spelling doaj.art-07e0babfd56442eea36f5a569ecf7cd02023-06-11T04:15:08ZengElsevierForces in Mechanics2666-35972023-05-0111100191A comparative study on the response of the L-shaped base isolated multi-storey building to near and far field earthquake ground motionJitendra Gudainiyan0Praveen Kumar Gupta1Department of Civil Engineering, GLA University, Mathura, IndiaCorresponding author.; Department of Civil Engineering, GLA University, Mathura, IndiaThis study aims to understand the behaviour of a base isolated l-shaped building under far field and near field earthquake ground motion. A ten-storey l-shaped building was considered for the study and modelled using SAP2000, which is finite-element-based software. At first, a non-isolated model was created, and the required data was generated in order to develop an isolated model. After that, a non-linear time history analysis was performed, and the results of storey displacement, torsional irregularity, and base shear have been discussed for the base isolated model and the non-isolated model. The fundamental time period of base isolated l-shaped building was found to be 2.56 s while the base model had fundamental time period of 0.88 s. It was found in this study that higher peak ground acceleration (PGA) and peak ground velocity (PGV) of the ground motion led to higher storey displacement, storey drift, and base shear but a lower torsional irregularity ratio under near field ground motion, while torsional irregularity ratio of base isolated building was found to be increased under far field ground motion.http://www.sciencedirect.com/science/article/pii/S2666359723000264Irregular buildingsBase isolationTorsional irregularityTime history analysis
spellingShingle Jitendra Gudainiyan
Praveen Kumar Gupta
A comparative study on the response of the L-shaped base isolated multi-storey building to near and far field earthquake ground motion
Forces in Mechanics
Irregular buildings
Base isolation
Torsional irregularity
Time history analysis
title A comparative study on the response of the L-shaped base isolated multi-storey building to near and far field earthquake ground motion
title_full A comparative study on the response of the L-shaped base isolated multi-storey building to near and far field earthquake ground motion
title_fullStr A comparative study on the response of the L-shaped base isolated multi-storey building to near and far field earthquake ground motion
title_full_unstemmed A comparative study on the response of the L-shaped base isolated multi-storey building to near and far field earthquake ground motion
title_short A comparative study on the response of the L-shaped base isolated multi-storey building to near and far field earthquake ground motion
title_sort comparative study on the response of the l shaped base isolated multi storey building to near and far field earthquake ground motion
topic Irregular buildings
Base isolation
Torsional irregularity
Time history analysis
url http://www.sciencedirect.com/science/article/pii/S2666359723000264
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