摘要
对轻量化钢结构中具有低延性特征的薄柔构件钢框架进行了研究。介绍了关于大宽厚比H形截面钢构件的系列试验研究结果,阐述了根据抗震承载能力和变形能力要求综合控制构件轴压比、翼缘-腹板组合宽厚比的评价方法,研究并提出了对薄柔构件钢框架破坏模式和延性性质具有决定影响的构件能力参数,以及关于利用这类框架低延性特点进行抗震设计的建议。
One of the features of the light weight steel frames is low ductility. In this paper, a series of test results on non-compact and slender H-shaped members are summarized. It is suggested that the axial compression ratio and the width-to-thickness ratio of flange and web of members shall satisfy the requirements of the seismic loading capacity and deformability. The failure mode and energy dissipation mechanism of the frames are studied experimentally and numerically, and key factors in terms of the ratio of resistance and stiffness are found. A seismic design procedure according to the low-ductility behavior is proposed.
出处
《工程力学》
EI
CSCD
北大核心
2008年第A02期62-70,共9页
Engineering Mechanics
关键词
轻量化结构
大宽厚比钢构件
钢框架
滞回性能
抗震设计
light weight structure
non-compact section members
steel frame
hysteretic behavior
seismic design
