翼缘削弱型端板连接节点抗震性能分析  

Analysis of seismic behavior of beam-to-column end-plate connections with reduced beam section

作　　者：杨应华[1] 师梦尘 

机构地区：[1]西安建筑科技大学,陕西西安710055

出　　处：《地震工程与工程振动》2015年第2期157-165,共9页Earthquake Engineering and Engineering Dynamics

基　　金：教育部留学回国人员科研基金(教外司留[2007]1108号);陕西省教育厅专项科研项目(11JK0945)

摘　　要：为克服梁柱外伸式端板连接节点抗震性能的不足,论文提出了梁翼缘削弱型外伸式端板连接节点这种新的节点形式。应用ANSYS有限元对此种节点进行了非线性单调和滞回有限元分析。研究了端板厚度、端板上螺栓数量、翼缘削弱尺寸(削弱区起始位置、削弱区长度、最大深度)对节点承载力、塑性铰形成规律以及滞回性能的影响。结果表明:所提出的梁柱外伸式端板连接节点的抗震性能优于普通外伸式端板连接节点;选择合理削弱参数可以有效地提高外伸式端板连接节点的抗震性能,克服其不足。To overcome the seismic shortcomings of traditional beam-to-column end-plate connections, a new type of beam-to-column connection i. e. beam-to-column end-plate connections with reduced beam section is proposed in this paper. The monotonic and hysteretic behavior of this new connection is further analyzed by applying ANSYS FE. The effects of factors such as end-plate thickness, bolt quantity and reduced beam section parameters on the connection capacity, plastic hinge development and hysteretic behavior, are investigated. The results show that the seismic behavior of the proposed connection is superior to that of traditional beam-to-column end-plate connections, and appropriate selection of reduced beam section parameters can effectively improve the seismic behavior of beam- to-column end-plate connections.

关 键 词：梁柱端板连接 翼缘削弱 有限元 滞回性能 耗能系数 

分 类 号：TU391[建筑科学—结构工程] P315.92[天文地球—地震学]