装配式钢管混凝土柱-钢梁端板螺栓连接抗震加固设计研究  

Study on seismic reinforcement design of prefabricated concrete-filled steel tubular column and steel beam end plate bolted connection

作　　者：李力怡[1] 马江萍[1] 刘清颖 杨燕 LI Liyi;MA Jiangping;LIU Qingying;YANG Yan(School of Architecture and Art Design,Xi'an Peihua University,Xi'an 710125,China)

机构地区：[1]西安培华学院建筑与艺术设计学院,陕西西安710125

出　　处：《粘接》2022年第3期85-88,共4页Adhesion

基　　金：陕西省教育科学“十三五”规划2020年度课题(项目编号:SGH20Y1459)。

摘　　要：为了研究装配式钢管混凝土柱-钢梁端板螺栓连接抗震加固设计,选取了5个试件进行了拟静力试验研究,对装配式钢管混凝土柱-钢梁端板螺栓连接抗震加固设计进行了端板厚度、螺栓直径、混凝土强度等对连接点承载力具有破坏影响的因素研究。结果表明:装配式钢管混凝土柱-钢梁端板螺栓连接点属于半刚性节点,其抗震强度随端板厚度和螺栓直径增大呈上升趋势;当端板和钢梁控制承载力时,对框架的承载力、刚度和延性的影响很小,可以有效改善框架的延性,对提高框架承载力和抗震性具有重要意义。In order to study the prefabricated concrete filled steel tubular column-end plate girder bolted seismic strengthening design,this paper selected five specimens to conduct the pseudo static test and the research of prefabricated concrete filled steel tube column-end plate girder bolted seismic strengthening design for the end plate thickness,bolt diameter,bearing capacity of concrete strength on the connection point of the impact of damage factors.The results showed that the connection points of end plate bolt of prefabricated CFST column-steel beam belonged to semi-rigid joints,and the seismic strength increased with the increase of end plate thickness and bolt diameter.When the end plate and steel beam controlled the bearing capacity,the capacity,stiffness and ductility of the frame has little influence,which could effectively improve the ductility of the frame.

关 键 词：钢管混凝土柱 端板螺栓 抗震性能 滞回性能 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]