带钢端头的装配式混凝土梁柱中节点滞回性能试验研究  

Experimental Research on Hysteresis Behavior of Prefabricated ConcreteBeam-Column Joint with Steel End Connector

作　　者：戎贤 杨洪渭 张健新 RONG Xian;YANG Hongwei;ZHANG Jianxin(School of Civil and Transportation Engineering,Hebei University of Technology,Tianjin 300401,China;Civil Engineering Technology Research Center of Hebei Province,Tianjin 300401,China)

机构地区：[1]河北工业大学土木与交通学院,天津300401 [2]河北省土木工程技术研究中心,天津300401

出　　处：《重庆交通大学学报（自然科学版）》2021年第2期78-82,共5页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：河北省自然科学基金项目(E2018202290、E2017202278);天津市建委科技项目(HE1863)。

摘　　要：为解决装配式混凝土梁柱中节点连接复杂的问题,提出采用钢端头进行连接。设计了3个带钢端头连接的装配式混凝土梁柱中节点ZGJ-1、ZGJ-2和ZGJ-3,开展了低周反复荷载试验,研究了水平连接板间腹板的设置及伸入预制梁内钢端头的长度对中节点滞回性能的影响。结果表明:带钢端头的新型装配式混凝土梁柱中节点抗震性能良好;伸入预制梁内钢端头的长度对中节点性能影响不大;水平连接板间设置腹板能较大程度提高中节点的抗震性能。To solve the problem of the complicated connection of prefabricated concrete beam-column joints,the connection with steel end connector was proposed.Three prefabricated concrete beam-column joints with steel end connector,named ZGJ-1,ZGJ-2 and ZGJ-3,were designed.Through the low-cycle cyclic loading test,the influence of the web setting between the horizontal connecting plates and the length of the steel end extending into the precast beam on the hysteretic behavior of the joint was studied.The test results show that the new type of prefabricated concrete beam-column joints with steel end connector has good seismic behavior.The length of the steel end connector extending into the precast beam has little influence on the performance of the joints,and the setting of the web between the horizontal connecting plates can greatly improve the seismic behavior of the joints.

关 键 词：桥梁工程 装配式梁柱中节点 滞回性能 拟静力试验 

分 类 号：U448.34[建筑科学—桥梁与隧道工程] TU375[交通运输工程—道路与铁道工程]