Three-level performance-based optimization method of steel frames

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Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2018
Major/Subject
Mcode
Degree programme
Language
en
Pages
18
Series
LATIN AMERICAN JOURNAL OF SOLIDS AND STRUCTURES, Volume 15, issue 1
Abstract
This paper describes a three-level performance-based optimization model and an estimate method of residual top displacement for steel frames at three earthquake levels. The steel frames are supposed to be elastic at frequent earthquake, inelastic and hardening at occasional and rare earthquakes, respectively. The estimate formula is derived and estimate procedure is given in detail. The estimate method only needs to use (only) one pushover analysis until steel frames yield. The yield point is obtained automatically in the proposed method. The estimate method is able to make optimization process uninterrupted. Optimal design of a 3-story 2-bay steel frame is demonstrated to validate the proposed method.
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Keywords
Earthquake resistant structures, Earthquake engineering, Seismic design, Steel frames, Optimization, Optimization models, CAPACITY SPECTRUM METHOD, DESIGN
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Citation
Liu , Q 2018 , ' Three-level performance-based optimization method of steel frames ' , Latin American Journal of Solids and Structures , vol. 15 , no. 1 , e07 . https://doi.org/10.1590/1679-78252954