利用钢梁拼接耗能的框架结构抗震性能研究  

The study on seismic behavior of steel frame using cantilever beam splice as energy dissipation joint

作　　者：刘学[1] 李启才[1] 

机构地区：[1]苏州科技学院土木工程学院,江苏苏州215011

出　　处：《苏州科技学院学报（工程技术版）》2014年第2期53-56,66,共5页Journal of Suzhou University of Science and Technology （Engineering and Technology）

基　　金：苏州科技学院科研基金项目(XKZ201204)

摘　　要：在以往试验和拼接节点弯矩-转角模型的基础上,对弯矩-转角模型进行修正并提出了新的划分标准。将修正后的模型赋予框架中的拼接单元,并通过有限元计算,研究了该型结构的破坏形态、荷载-位移曲线、滞回曲线及耗能性能等,检验了该型结构的抗震性能。分析表明,利用钢梁拼接耗能的框架结构在弹性阶段与纯框架性能相同,塑性阶段利用拼接区接触面的滑移和螺栓孔壁的挤压来消耗能量,提高了结构的抗震性能。Based on the experimental study and moment-rotation model of splice joint, the modified moment-rotation model is proposed. Hysteretic models are used to define property of link element. In order to investigate the seismic behavior of column-tree moment-resisting frame, the failure modes, load-displacement curve, hysteretic curve and energy-dissipation of this frame were studied respectively using finite element numerical simu- lation. The results show that column-tree moment-resisting frame presents the same performance as the common frame without splice does in the elastic stage. The slip between faying surfaces and the bearing of bolts to hole surfaces can be used to improve the seismic behavior of the whole frame.

关 键 词：钢梁拼接耗能 结构抗震性能 滞回曲线 弯矩-转角曲线 

分 类 号：TU391[建筑科学—结构工程]