Optimizing displacement-based seismic design of mass timber rocking walls using genetic algorithm
Optimizing displacement-based seismic design of mass timber rocking walls using genetic algorithm
复制标题
使用遗传算法优化基于位移的大体积木摇墙抗震设计
DOI:
10.1016/j.engstruct.2020.111603
复制
发表时间:
2021
影响因子:
5.5
通讯作者:
Busch, Aleesha
中科院分区:
文献类型:
--
作者:
Huang, Da;Pei, Shiling;Busch, Aleesha
This paper presents a rational procedure to optimize design for mass timber rocking wall systems utilizing a genetic algorithm (GA) beyond typical displacement-based design metrics for wood buildings. Traditional displacement-based design is limited to simple displacement targets, with optimization techniques (GA), it is feasibly to consider more performance chrematistics (e.g. costs, serviceability, etc.). By formulating drift targets and other structural design limit states within an elimination step of the GA optimization process, the method proposed here optimizes rocking wall design with multiple criteria that factor much more than lateral displacement targets in the seismic analysis. This type of optimization is difficult to perform using traditional manual trial-and-error approaches. An existing simplified nonlinear time-history simulation model (validated through full-scale shake table test data) of a wood rocking wall is employed in this process. The design for an example building in Seattle with a six-story rocking wall is presented using the proposed procedure. The results revealed that the optimization of the mass timber rocking wall lateral system can be achieved in a reasonable time frame using the proposed method. Even though the same drift limits were applied, final designs produced by GA varied, depending on the other optimization objectives. This demonstrates how the seismic design of wood rocking wall systems could be readily improved with computerized optimization tools that factor in other aspects of the design including cost.
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影响因子:
4.5
作者:
Pei, S.;Huang, D.;Berman, J. W.;Wichman, S. K.
通讯作者:
Wichman, S. K.
DOI:
10.1061/40558(2001)176
发表时间:
2001
期刊:
Scopus
影响因子:
--
作者:
A. Filiatrault;David Fischer;B. Folz;C. Uang
通讯作者:
C. Uang
影响因子:
4.5
作者:
Min Liu;S. A. Burns;Y. Wen
通讯作者:
Min Liu;S. A. Burns;Y. Wen
影响因子:
4.1
作者:
Pei, Shiling;van de Lindt, John W.;Wichman, Sarah
通讯作者:
Wichman, Sarah
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
Y. Sung;C. Su
通讯作者:
C. Su