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Optimization in structural altitude for seismic base isolation at medium risk earthquake disaster region

Seismic isolation through rubber bearing at structural base poses significant reduction in energy ensuring flexibility to the structure. The bearings act as earthquake induced load resisting system. This seismic load is predominant lateral load acting on building structures along with wind load. If...

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Main Authors: Islam, A.B.M.S., Jameel, Mohammed, Jumaat, Mohd Zamin, Rahman, M.M.
Format: Article
Published: 2013
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.um.edu.my/7282/
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spelling my.um.eprints.72822020-02-05T04:40:43Z http://eprints.um.edu.my/7282/ Optimization in structural altitude for seismic base isolation at medium risk earthquake disaster region Islam, A.B.M.S. Jameel, Mohammed Jumaat, Mohd Zamin Rahman, M.M. TA Engineering (General). Civil engineering (General) Seismic isolation through rubber bearing at structural base poses significant reduction in energy ensuring flexibility to the structure. The bearings act as earthquake induced load resisting system. This seismic load is predominant lateral load acting on building structures along with wind load. If wind load is much greater than the earthquake load, inserting isolator will bring no advantage in design. Furthermore, if the time period of a building without isolator is greater than the reasonable value, incorporation of isolator will not convey much difference to the building behavior with respect to seismic load. So the objective of the study is to examine the building structures in region of medium risk seismicity for dissimilar heights and plan area to predict critical height up to which energy dissipation bearing is competent. 108 numbers of models for different configurations of 4 to 30 stories structures have been built up. All the structures are analyzed in finite element approach subjected to proper lateral loading. The characteristics and functions of different kinds of isolators are introduced along with isolation suitability for building structures. The relationship among governing lateral load, building altitude and time period is evaluated as well. The study reveals that though seismic base shear governs up to larger building height, for higher tallness, the structure may experience larger time periods than the most suitably limiting value for incorporating isolator. Realistic structural analyses envisage that up to 30 similar to 40m height seismic base isolator can be efficiently incorporated in medium risk seismic vicinity for RCC building structures. 2013 Article PeerReviewed Islam, A.B.M.S. and Jameel, Mohammed and Jumaat, Mohd Zamin and Rahman, M.M. (2013) Optimization in structural altitude for seismic base isolation at medium risk earthquake disaster region. Disaster Advances, 6 (1). pp. 23-34. ISSN 0974-262X
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Islam, A.B.M.S.
Jameel, Mohammed
Jumaat, Mohd Zamin
Rahman, M.M.
Optimization in structural altitude for seismic base isolation at medium risk earthquake disaster region
description Seismic isolation through rubber bearing at structural base poses significant reduction in energy ensuring flexibility to the structure. The bearings act as earthquake induced load resisting system. This seismic load is predominant lateral load acting on building structures along with wind load. If wind load is much greater than the earthquake load, inserting isolator will bring no advantage in design. Furthermore, if the time period of a building without isolator is greater than the reasonable value, incorporation of isolator will not convey much difference to the building behavior with respect to seismic load. So the objective of the study is to examine the building structures in region of medium risk seismicity for dissimilar heights and plan area to predict critical height up to which energy dissipation bearing is competent. 108 numbers of models for different configurations of 4 to 30 stories structures have been built up. All the structures are analyzed in finite element approach subjected to proper lateral loading. The characteristics and functions of different kinds of isolators are introduced along with isolation suitability for building structures. The relationship among governing lateral load, building altitude and time period is evaluated as well. The study reveals that though seismic base shear governs up to larger building height, for higher tallness, the structure may experience larger time periods than the most suitably limiting value for incorporating isolator. Realistic structural analyses envisage that up to 30 similar to 40m height seismic base isolator can be efficiently incorporated in medium risk seismic vicinity for RCC building structures.
format Article
author Islam, A.B.M.S.
Jameel, Mohammed
Jumaat, Mohd Zamin
Rahman, M.M.
author_facet Islam, A.B.M.S.
Jameel, Mohammed
Jumaat, Mohd Zamin
Rahman, M.M.
author_sort Islam, A.B.M.S.
title Optimization in structural altitude for seismic base isolation at medium risk earthquake disaster region
title_short Optimization in structural altitude for seismic base isolation at medium risk earthquake disaster region
title_full Optimization in structural altitude for seismic base isolation at medium risk earthquake disaster region
title_fullStr Optimization in structural altitude for seismic base isolation at medium risk earthquake disaster region
title_full_unstemmed Optimization in structural altitude for seismic base isolation at medium risk earthquake disaster region
title_sort optimization in structural altitude for seismic base isolation at medium risk earthquake disaster region
publishDate 2013
url http://eprints.um.edu.my/7282/
_version_ 1662755147922538496
score 13.211869

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