Seismic vulnerability assessment of RC buildings with setback irregularity

This study aims to perform a fragility analysis of RC buildings subjected to seismic loading. For this purpose, the curves of fragility are developed for 20 building models with different setback values. Using a finite element calculation program, nonlinear static analyses are performed. The outcome...

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Main Authors: Mohamed Mouhine, Elmokhtar Hilali
Format: Article
Language:English
Published: Elsevier 2022-01-01
Series:Ain Shams Engineering Journal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2090447921002227
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author Mohamed Mouhine
Elmokhtar Hilali
author_facet Mohamed Mouhine
Elmokhtar Hilali
author_sort Mohamed Mouhine
collection DOAJ
description This study aims to perform a fragility analysis of RC buildings subjected to seismic loading. For this purpose, the curves of fragility are developed for 20 building models with different setback values. Using a finite element calculation program, nonlinear static analyses are performed. The outcomes indicate that the performance of building structures is highly affected due to the setback. Also, the seismic fragility is more pronounced when setback passes from level 1 to level 4. The fragility analysis shows that, for a setback value equal to 50%, the difference between the probability of damage, when the setback passes from the bottom of the structure to level 4, is 12.19%, 30.85%, 37.03%, and 41.16% for a slight, moderate, severe, and complete state of damage, respectively. Moreover, the structures with a setback on the fourth floor exhibit poor seismic performance, and therefore, a high probability of damage.
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spelling doaj.art-8a5cdb91595c4070a12e503973cd62902022-12-22T04:09:59ZengElsevierAin Shams Engineering Journal2090-44792022-01-01131101486Seismic vulnerability assessment of RC buildings with setback irregularityMohamed Mouhine0Elmokhtar Hilali1Corresponding author.; Laboratory of Materials, Mechanics, and Civil Engineering, National School of Applied Sciences (ENSA), Ibn Zohr University, 80000 Agadir, MoroccoLaboratory of Materials, Mechanics, and Civil Engineering, National School of Applied Sciences (ENSA), Ibn Zohr University, 80000 Agadir, MoroccoThis study aims to perform a fragility analysis of RC buildings subjected to seismic loading. For this purpose, the curves of fragility are developed for 20 building models with different setback values. Using a finite element calculation program, nonlinear static analyses are performed. The outcomes indicate that the performance of building structures is highly affected due to the setback. Also, the seismic fragility is more pronounced when setback passes from level 1 to level 4. The fragility analysis shows that, for a setback value equal to 50%, the difference between the probability of damage, when the setback passes from the bottom of the structure to level 4, is 12.19%, 30.85%, 37.03%, and 41.16% for a slight, moderate, severe, and complete state of damage, respectively. Moreover, the structures with a setback on the fourth floor exhibit poor seismic performance, and therefore, a high probability of damage.http://www.sciencedirect.com/science/article/pii/S2090447921002227Seismic vulnerabilityRC buildingsSetback irregularityNonlinear static analysisFragility curves
spellingShingle Mohamed Mouhine
Elmokhtar Hilali
Seismic vulnerability assessment of RC buildings with setback irregularity
Ain Shams Engineering Journal
Seismic vulnerability
RC buildings
Setback irregularity
Nonlinear static analysis
Fragility curves
title Seismic vulnerability assessment of RC buildings with setback irregularity
title_full Seismic vulnerability assessment of RC buildings with setback irregularity
title_fullStr Seismic vulnerability assessment of RC buildings with setback irregularity
title_full_unstemmed Seismic vulnerability assessment of RC buildings with setback irregularity
title_short Seismic vulnerability assessment of RC buildings with setback irregularity
title_sort seismic vulnerability assessment of rc buildings with setback irregularity
topic Seismic vulnerability
RC buildings
Setback irregularity
Nonlinear static analysis
Fragility curves
url http://www.sciencedirect.com/science/article/pii/S2090447921002227
work_keys_str_mv AT mohamedmouhine seismicvulnerabilityassessmentofrcbuildingswithsetbackirregularity
AT elmokhtarhilali seismicvulnerabilityassessmentofrcbuildingswithsetbackirregularity