摘要
对低屈服点（LYP）钢剪力墙的循环性能进行研究。在LYP钢剪力墙体系中，LYP钢板一般用于钢面板，常规结构钢一般用于边界框架。对LYP钢剪力墙在循环荷载作用下的刚度、强度、变形能力和耗能能力进行了一系列试验研究，同时也分析了钢板的宽厚比、剪力墙的连续性和梁柱连接件的设计对边界框架的影响。所有试验构件都具有良好的耗能能力。刚架一剪力墙体系和纯框架一剪力墙体系两者都具有很好的变形能力。当层间位移角达到3％～6％时，LYP钢剪力墙仍能保持稳定。同时也采用了1个双折线模型来模拟剪力墙体系的弹性和非弹性性能。试验和分析结果之间具有良好的相关性。基于这些研究结果，为设计LYP钢剪力墙体系提出了建议。
This paper presents the research works on the cyclic behavior of low yield point （LYP） steel shear wall. In the LYP steel shear wall system, the LYP steel plate is used for steel panel and conventional structural steel is used for boundary frame. A series of experimental studies were carried out to examine the stiffness, strength, deformation capacity, and energy dissipation capacity of the LYP steel shear wall under cyclic load. The effect of width-to-thick- ness ratio of steel plate, continuity of shear wall, and the design of beam-to-column connections on the boundary frame was examined. Good energy dissipation capacities were obtained for all specimens studied. Excellent deformation capacities were obtained from both rigid frame- shear wall system and simple frame-shear wall system. The LYP steel shear wall is able to maintain stable up to 3% - 6% of story drift angle. A two-force strip model was also proposed to simulate the elastic and inelastic behavior of shear wall system. Good correlations were found between experi- mental and analytical studies. Based on these research findings, suggestions are made for the design of LYP steel shear wall systems.
出处
《钢结构》
2008年第7期78-78,共1页
Steel Construction
关键词
弹性屈曲
耗能
低屈服点钢
钢剪力墙非
弹性屈曲
双折线模型
Elastic buckling
Energy dissipation
Low yieldpoint steel
Steel shear wall
Inelastic buckling
Two-forcestrip model
