摘要
基于等效拉杆理论,对3组不同高度的钢框架-钢板剪力墙结构进行动力时程分析,研究了结构的层间侧移角、塑性铰出现顺序和外框架与支撑架的剪力分配等指标。结果表明:设计合理的钢框架-钢板剪力墙结构符合双层抗侧力体系设计原则。钢板剪力墙进入弹塑性状态后其支撑架的刚度并不明显退化,结构在各级地震下的外框架与支撑架的剪力分配比例较为稳定。另外,其剪力分配比例受其结构失稳类别的影响,一般情况下,外框架分配的剪力随结构高度的增加而增加。
Based on equivalent strip theory,the story drift,appearing order of plastic hinges and shear force distribution between the braced frame and outer frame were analyzed by using the dynamic time history analysis for three different height frame-steel plate shear wall structure. The results show that the design reasonable steel frame-steel plate shear wall structure is a double lateral force resisting system. The distribution ratio of shear is stable between the outer frame and braced frame in different earthquakes,the support stiffness of the steel plate shear wall is not obviously degraded into elastic-plastic state. In addition,the shear distribution is influenced by its structure instability categories,the shear of outer frame is generally increased with the increase of height.
出处
《地震工程与工程振动》
CSCD
北大核心
2015年第4期213-221,共9页
Earthquake Engineering and Engineering Dynamics
基金
国家自然科学基金项目(51178381)
关键词
钢板剪力墙
拉杆条模型
动力时程分析
塑性铰
抗震性能
steel plate shear wall
strip model
dynamic time history analysis
plastic hinge
seismic behavior
