李  风    （西安建筑科技大学  710055）

[提要]  结合某试点工程的要求，进行了冷弯薄壁型钢与混凝土组合节点在低周循环荷载下的足尺模型拟静力试验研究。在较详细阐述试验过程的基础上，结合试验现象阐明两种不同构造节点的循环塑性屈曲破坏、循环塑性累积破坏模式，并提出改进建议。
[关键词]  冷弯薄壁型钢  混凝土  组合节点  低周循环荷载  破坏模式

Experiment under low-cycle-loading is presented on the composite joint of cold-formed&light-guage steel shape and concrete. According to detailed representation on the procedure of the experiment, two types of joint failure mode are presented, that is, cyclic plastic buckling failure and cyclic plastic cumulative failure.
Keywords:  composite joint; cold-formed&light-guage shape steel; concrete; failure mode