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Moghaddam, H., Hajirasouliha, I. orcid.org/0000-0003-2597-8200 and Doostan, A. (2005) Optimum seismic design of concentrically braced steel frames: concepts and design procedures. Journal of Constructional Steel Research, 61 (2). pp. 151-166. ISSN 0143-974X
Abstract
A methodology is presented for optimization of the dynamic response of concentrically braced steel frames subjected to seismic excitation, based on the concept of uniform distribution of deformation. In order to obtain the optimum distribution of structural properties, an iterative optimization procedure has been adopted. In this approach, the structural properties are modified so that inefficient material is gradually shifted from strong to weak areas of a structure. This process is continued until a state of uniform deformation is achieved. It is shown that the seismic performance of such a structure is optimal, and behaves generally better than those designed by conventional methods. In order to avoid onerous analysis of the frame models, an equivalent procedure is introduced for performing the optimization procedure on the modified reduced shear-building model of the frames, which is shown to be accurate enough for design purposes.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2004 Elsevier Ltd. This is an author produced version of a paper subsequently published in Journal of Constructional Steel Research. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/) |
Keywords: | optimal strength pattern; performance-based design; braced frames; seismic loading; DISPLACEMENT |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 19 Sep 2016 14:36 |
Last Modified: | 21 Mar 2018 05:43 |
Published Version: | http://dx.doi.org/10.1016/j.jcsr.2004.08.002 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.jcsr.2004.08.002 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:92308 |
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Optimum seismic design of concentrically braced steel frames: concepts and design procedures. (deposited 27 May 2015 17:21)
- Optimum seismic design of concentrically braced steel frames: concepts and design procedures. (deposited 19 Sep 2016 14:36) [Currently Displayed]
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