Seismic base isolation for buildings in regions of low to moderate seismicity: practical alternative design

lthough Dhaka city has experienced any moderate to large earthquakes in the past, some recent ground shakings are certainly indications of its earthquake source and vulnerability. In addition, microseismicity data also supports the existence of at least four earthquake source points in and around Dh...

Full description

Bibliographic Details
Main Authors:	Islam, A.B.M.S., Ahmad, S.I., Jameel, M., Jumaat, M.Z.
Format:	Article
Published:	Practice Periodical on Structural Design and Construction 2010
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://ascelibrary.org/action/showAbstract?page=13&volume=17&issue=1&journalCode=ppscfx&view=fulltext http://ascelibrary.org/action/showAbstract?page=13&volume=17&issue=1&journalCode=ppscfx&view=fulltext

id	um-6012
recordtype	eprints
spelling	um-60122017-10-04T07:34:08Z Seismic base isolation for buildings in regions of low to moderate seismicity: practical alternative design Islam, A.B.M.S. Ahmad, S.I. Jameel, M. Jumaat, M.Z. TA Engineering (General). Civil engineering (General) lthough Dhaka city has experienced any moderate to large earthquakes in the past, some recent ground shakings are certainly indications of its earthquake source and vulnerability. In addition, microseismicity data also supports the existence of at least four earthquake source points in and around Dhaka. However, it is important to appropriately consider the seismic lateral load effect in structural design. A newly adopted technology of seismic design is to isolate the superstructure from the substructure with the use of a base isolator. This paper covers the design of base isolators for a building located in Dhaka, Bangladesh, along with its structural and economic feasibility. A time history is generated for Dhaka, adjusting peak ground acceleration as per seismic region from a nearby recorded earthquake. The response spectrum curve based on the site geology of Dhaka is also generated from this time history. Linear static as well as dynamic (time history and response spectrum) analyses have been carried out for both isolated and nonisolated buildings. Similar analyses have also been repeated for buildings with different heights but similar plan areas. The study reveals that for low-to medium-rise buildings, isolation can reduce seismic force along with some savings in structural cost of the building, though incorporating base isolators increase the overall price and installation cost. A meticulous review indicates that savings may be in the order of 5â��10 of the total structural cost of the respective building. Practice Periodical on Structural Design and Construction 2010 Article PeerReviewed http://ascelibrary.org/action/showAbstract?page=13&volume=17&issue=1&journalCode=ppscfx&view=fulltext Islam, A.B.M.S.; Ahmad, S.I.; Jameel, M.; Jumaat, M.Z. (2010) Seismic base isolation for buildings in regions of low to moderate seismicity: practical alternative design. Practice Periodical on Structural Design and Construction <http://eprints.um.edu.my/view/publication/Practice_Periodical_on_Structural_Design_and_Construction.html>, 17 (1). pp. 13-20. ISSN 1084-0680 http://eprints.um.edu.my/6012/
repository_type	Digital Repository
institution_category	Local University
institution	University Malaya
building	UM Research Repository
collection	Online Access
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Islam, A.B.M.S. Ahmad, S.I. Jameel, M. Jumaat, M.Z. Seismic base isolation for buildings in regions of low to moderate seismicity: practical alternative design
description	lthough Dhaka city has experienced any moderate to large earthquakes in the past, some recent ground shakings are certainly indications of its earthquake source and vulnerability. In addition, microseismicity data also supports the existence of at least four earthquake source points in and around Dhaka. However, it is important to appropriately consider the seismic lateral load effect in structural design. A newly adopted technology of seismic design is to isolate the superstructure from the substructure with the use of a base isolator. This paper covers the design of base isolators for a building located in Dhaka, Bangladesh, along with its structural and economic feasibility. A time history is generated for Dhaka, adjusting peak ground acceleration as per seismic region from a nearby recorded earthquake. The response spectrum curve based on the site geology of Dhaka is also generated from this time history. Linear static as well as dynamic (time history and response spectrum) analyses have been carried out for both isolated and nonisolated buildings. Similar analyses have also been repeated for buildings with different heights but similar plan areas. The study reveals that for low-to medium-rise buildings, isolation can reduce seismic force along with some savings in structural cost of the building, though incorporating base isolators increase the overall price and installation cost. A meticulous review indicates that savings may be in the order of 5â��10 of the total structural cost of the respective building.
format	Article
author	Islam, A.B.M.S. Ahmad, S.I. Jameel, M. Jumaat, M.Z.
author_facet	Islam, A.B.M.S. Ahmad, S.I. Jameel, M. Jumaat, M.Z.
author_sort	Islam, A.B.M.S.
title	Seismic base isolation for buildings in regions of low to moderate seismicity: practical alternative design
title_short	Seismic base isolation for buildings in regions of low to moderate seismicity: practical alternative design
title_full	Seismic base isolation for buildings in regions of low to moderate seismicity: practical alternative design
title_fullStr	Seismic base isolation for buildings in regions of low to moderate seismicity: practical alternative design
title_full_unstemmed	Seismic base isolation for buildings in regions of low to moderate seismicity: practical alternative design
title_sort	seismic base isolation for buildings in regions of low to moderate seismicity: practical alternative design
publisher	Practice Periodical on Structural Design and Construction
publishDate	2010
url	http://ascelibrary.org/action/showAbstract?page=13&volume=17&issue=1&journalCode=ppscfx&view=fulltext http://ascelibrary.org/action/showAbstract?page=13&volume=17&issue=1&journalCode=ppscfx&view=fulltext
first_indexed	2018-09-05T16:56:45Z
last_indexed	2018-09-05T16:56:45Z
_version_	1610833984646807552

Seismic base isolation for buildings in regions of low to moderate seismicity: practical alternative design

Similar Items