Initial stiffness of reinforced concrete structural walls with irregular openings

Reinforced concrete (RC) structural walls with openings are the primary lateral-load-carrying elements utilized in many structures designed to resist earthquakes. A review of the technical literature shows that there is a considerable amount of uncertainty with regards to the elastic stiffness...

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Main Authors: Li, Bing, Chen, Qin
其他作者: School of Civil and Environmental Engineering
格式: Article
語言:English
出版: 2012
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在線閱讀:https://hdl.handle.net/10356/95262
http://hdl.handle.net/10220/8483
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spelling sg-ntu-dr.10356-952622020-03-07T11:43:31Z Initial stiffness of reinforced concrete structural walls with irregular openings Li, Bing Chen, Qin School of Civil and Environmental Engineering DRNTU::Engineering Reinforced concrete (RC) structural walls with openings are the primary lateral-load-carrying elements utilized in many structures designed to resist earthquakes. A review of the technical literature shows that there is a considerable amount of uncertainty with regards to the elastic stiffness of these structures when subjected to seismic excitations. Current design practices often employ a stiffness reduction factor to deal with this uncertainty. In an attempt to develop additional information regarding the stiffness of these structures, this paper discusses an approach to determine the initial stiffness of RC structural walls with irregular openings and low aspect ratios. This approach would consider the effect of both flexural and shear deformations. As a part of this study, an analytical approach to determine stiffness was also developed and validated by comparing theoretical and experimental results obtained from six RC shear walls with irregular openings. Simple equations for assessing initial stiffness of RC structural walls with irregular openings are then proposed, based on these parametric case studies. 2012-09-10T06:23:35Z 2019-12-06T19:11:32Z 2012-09-10T06:23:35Z 2019-12-06T19:11:32Z 2009 2009 Journal Article Li, B., & Chen, Q. (2009). Initial stiffness of reinforced concrete structural walls with irregular openings. Earthquake Engineering & Structural Dynamics, 39(4), 397–417. 1096-9845 https://hdl.handle.net/10356/95262 http://hdl.handle.net/10220/8483 10.1002/eqe.946 en Earthquake engineering & structural dynamics © 2009 John Wiley & Sons, Ltd.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering
spellingShingle DRNTU::Engineering
Li, Bing
Chen, Qin
Initial stiffness of reinforced concrete structural walls with irregular openings
description Reinforced concrete (RC) structural walls with openings are the primary lateral-load-carrying elements utilized in many structures designed to resist earthquakes. A review of the technical literature shows that there is a considerable amount of uncertainty with regards to the elastic stiffness of these structures when subjected to seismic excitations. Current design practices often employ a stiffness reduction factor to deal with this uncertainty. In an attempt to develop additional information regarding the stiffness of these structures, this paper discusses an approach to determine the initial stiffness of RC structural walls with irregular openings and low aspect ratios. This approach would consider the effect of both flexural and shear deformations. As a part of this study, an analytical approach to determine stiffness was also developed and validated by comparing theoretical and experimental results obtained from six RC shear walls with irregular openings. Simple equations for assessing initial stiffness of RC structural walls with irregular openings are then proposed, based on these parametric case studies.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Li, Bing
Chen, Qin
format Article
author Li, Bing
Chen, Qin
author_sort Li, Bing
title Initial stiffness of reinforced concrete structural walls with irregular openings
title_short Initial stiffness of reinforced concrete structural walls with irregular openings
title_full Initial stiffness of reinforced concrete structural walls with irregular openings
title_fullStr Initial stiffness of reinforced concrete structural walls with irregular openings
title_full_unstemmed Initial stiffness of reinforced concrete structural walls with irregular openings
title_sort initial stiffness of reinforced concrete structural walls with irregular openings
publishDate 2012
url https://hdl.handle.net/10356/95262
http://hdl.handle.net/10220/8483
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