典型文献
Topology optimization and seismic collapse assessment of shape memory alloy(SMA)-braced frames:Effectiveness of Fe-based SMAs
文献摘要：
This paper presents a seismic topology optimization study of steel braced frames with shape memory alloy(SMA)braces.Optimal SMA-braced frames(SMA-BFs)with either Fe-based SMA or NiTi braces are determined in a performance-based seismic design context.The topology optimization is performed on 5-and 10-story SMA-BFs considering the placement,length,and cross-sectional area of SMA bracing members.Geometric,strength,and performance-based design constraints are considered in the optimization.The seismic response and collapse safety of topologically optimal SMA-BFs are assessed according to the FEMA P695 methodology.A comparative study on the optimal SMA-BFs is also presented in terms of total relative cost,collapse capacity,and peak and residual story drift.The results demonstrate that Fe-based SMA-BFs exhibit higher collapse capacity and more uniform distribution of lateral displacement over the frame height while being more cost-effective than NiTi braced frames.In addition to a lower unit price compared to NiTi,Fe-based SMAs reduce SMA material usage.In frames with Fe-based SMA braces,the SMA usage is reduced by up to 80％.The results highlight the need for using SMAs with larger recoverable strains.
文献关键词：
中图分类号：
作者姓名：
Aydin HASSANZADEH;Saber MORADI
作者机构：
Department of Civil Engineering,Ryerson University,Toronto M5B 2K3,Canada
文献出处：
引用格式：
[1]Aydin HASSANZADEH;Saber MORADI-.Topology optimization and seismic collapse assessment of shape memory alloy(SMA)-braced frames:Effectiveness of Fe-based SMAs)[J].结构与土木工程前沿,2022(03):281-301
A类：
P695
B类：
Topology,optimization,seismic,collapse,assessment,shape,memory,alloy,braced,frames,Effectiveness,SMAs,This,paper,presents,topology,study,steel,braces,Optimal,BFs,either,NiTi,determined,performance,design,context,performed,story,considering,length,cross,sectional,area,bracing,members,Geometric,strength,constraints,considered,response,safety,topologically,optimal,assessed,according,FEMA,methodology,comparative,also,presented,terms,total,relative,cost,capacity,peak,residual,drift,results,demonstrate,that,exhibit,higher,more,uniform,distribution,lateral,displacement,height,while,being,effective,than,In,addition,lower,unit,price,compared,material,usage,reduced,by,up,highlight,need,using,larger,recoverable,strains
AB值：
0.489019
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