摘要
在现有T,L形钢管混凝土柱试验研究基础上,针对T,L形钢管混凝土柱的受压约束承载机理,提出了内填混凝土的等效单轴本构模型,建立了悬臂柱在反复荷载作用下的滞回全过程分析模型,编制了T,L形钢管混凝土柱的滞回全过程分析程序,将全过程滞回数值分析结果与试验结果进行了对比,验证了模型和分析程序的正确性。对T,L形钢管混凝土柱中有代表性混凝土和钢单元应力-应变发展全过程进行了数值模拟,结果表明模型能用于T形、L形钢管混凝土结构的非线性分析。
Concrete filled steel tubular columns with L or T sections are analyzed. According to the confining mechanism, the stressstrain constitutive model is put forward, and calculated results are compared with experimental records. The hysteretic rules for the in-filled concrete were constructed aiming at the analysis on thc seismic behavior of composite members. The simulation analysis is performed by programming it in Fortran code. The models can be applied in the program of time history analysis on tall buildings with concrete-filled steel tubular columns with L or T sections.
出处
《建筑结构》
CSCD
北大核心
2008年第9期116-119,共4页
Building Structure
关键词
T
L形钢管混凝土柱
本构关系
全过程分析
试验验证
composite column
constitutive model
seismic behavior analysis
experimental verification
