带有摩擦耗能组件的可更换拼接连接节点抗震性能研究  

A Study on the Seismic Performance of Replaceable Splicing Joints with Friction Energy Dissipation Components

作　　者：杨元强 刁延松[1] 任义建 刘芸[1] 刘秀丽[1] YANG Yuanqiang;DIAO Yansong;REN Yijian;LIU Yun;LIU Xiuli(School of Civil Engineering,Qingdao University of Technology,Qingdao 266525,China)

机构地区：[1]青岛理工大学土木工程学院,山东青岛266525

出　　处：《建筑钢结构进展》2023年第6期22-34,共13页Progress in Steel Building Structures

摘　　要：基于可恢复功能的抗震设计理念,提出了一种带有摩擦耗能组件的可更换拼接连接节点,该节点由H形钢柱、悬臂段、H形钢梁、可更换的翼缘连接板和摩擦铰组成。利用有限元软件ABAQUS建立节点的有限元模型并对其进行拟静力分析,通过更改翼缘连接板强度和厚度、削弱区深度和长度、转动螺栓的直径和数量,探究不同设计参数对节点的滞回性能、承载力、刚度以及位移延性的影响。结果表明:可更换拼接连接节点的承载力、刚度、总耗能等随着翼缘连接板强度和摩擦铰摩擦力的增大而提高,翼缘连接板采用LYP160钢材节点的延性明显高于采用Q235钢材节点的延性;摩擦铰的摩擦耗能随着摩擦力的增大而提高,随着翼缘连接板强度的增大而降低。Based on the seismic design concept of recoverable function,a replaceable splicing joint with friction energy dissipation components is proposed.The joint is composed of H-steel column,cantilever section,H-steel beam,replaceable flange connection plate and friction hinge.The finite element model of the joint is established by using finite element software ABAQUS,and the pseudo-static analysis is carried out.By changing the strength and thickness of the flange connection plate,the depth and length of the weakening zone,and the diameter and number of the rotating bolts,the effects of different design parameters on the hysteretic performance,bearing capacity,stiffness and displacement ductility of the joint are investigated.The results show that the bearing capacity,stiffness and total energy dissipation of the replaceable splicing joint increases with the increase of the strength of flange connection plate and the friction force of friction hinge,and the ductility of the joints with LYP160 steel in flange connection plate is significantly higher than that of the joints with Q235 steel.The friction energy dissipation increases with the increase of friction force,and decreases with the increase of the strength of flangeconnection plate.

关 键 词：可更换拼接连接节点 抗震性能 拟静力分析 摩擦耗能 可更换性 

分 类 号：TU352.1[建筑科学—结构工程]