A comparative seismic fragility analysis of a multi and single component beam-column joint models

Reliable quantification of joint flexibility of non-ductile RC frames is critical for seismic vulnerability assessment. The issue of super-element joint models causing numerical divergence in non-linear time history analysis of reinforced concrete frames is investigated. The rigid joint assumption a...

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Main Authors: Mark Adom-Asamoah, Jack Banahene Osei
Format: Article
Language:English
Published: Taylor & Francis Group 2018-01-01
Series:Cogent Engineering
Subjects:
Online Access:http://dx.doi.org/10.1080/23311916.2018.1426204
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author Mark Adom-Asamoah
Jack Banahene Osei
author_facet Mark Adom-Asamoah
Jack Banahene Osei
author_sort Mark Adom-Asamoah
collection DOAJ
description Reliable quantification of joint flexibility of non-ductile RC frames is critical for seismic vulnerability assessment. The issue of super-element joint models causing numerical divergence in non-linear time history analysis of reinforced concrete frames is investigated. The rigid joint assumption and a single rotational spring model are implemented for comparison. Reinforced concrete subassemblies and a one-third scaled frame have been employed for validation. Probabilistic seismic demand analysis indicates that super-element joint model may be less vulnerable relative to the single-component joint model. Furthermore, the shift in fragility function may lie in between the rigid joint and single-component joint modeling schemes, implying non-divergence.
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spelling doaj.art-204c082f9eb4487c9a60b215722bf9242023-09-02T17:56:19ZengTaylor & Francis GroupCogent Engineering2331-19162018-01-015110.1080/23311916.2018.14262041426204A comparative seismic fragility analysis of a multi and single component beam-column joint modelsMark Adom-Asamoah0Jack Banahene Osei1Kwame Nkurmah University of Science and TechnologyKwame Nkurmah University of Science and TechnologyReliable quantification of joint flexibility of non-ductile RC frames is critical for seismic vulnerability assessment. The issue of super-element joint models causing numerical divergence in non-linear time history analysis of reinforced concrete frames is investigated. The rigid joint assumption and a single rotational spring model are implemented for comparison. Reinforced concrete subassemblies and a one-third scaled frame have been employed for validation. Probabilistic seismic demand analysis indicates that super-element joint model may be less vulnerable relative to the single-component joint model. Furthermore, the shift in fragility function may lie in between the rigid joint and single-component joint modeling schemes, implying non-divergence.http://dx.doi.org/10.1080/23311916.2018.1426204beam-column jointfragility curvesrc frameseismic demand analysis
spellingShingle Mark Adom-Asamoah
Jack Banahene Osei
A comparative seismic fragility analysis of a multi and single component beam-column joint models
Cogent Engineering
beam-column joint
fragility curves
rc frame
seismic demand analysis
title A comparative seismic fragility analysis of a multi and single component beam-column joint models
title_full A comparative seismic fragility analysis of a multi and single component beam-column joint models
title_fullStr A comparative seismic fragility analysis of a multi and single component beam-column joint models
title_full_unstemmed A comparative seismic fragility analysis of a multi and single component beam-column joint models
title_short A comparative seismic fragility analysis of a multi and single component beam-column joint models
title_sort comparative seismic fragility analysis of a multi and single component beam column joint models
topic beam-column joint
fragility curves
rc frame
seismic demand analysis
url http://dx.doi.org/10.1080/23311916.2018.1426204
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