基于逆作法下两种框架结构柱-板节点试验研究  

Experimental study on column-plate joints of two kinds of frame structures based on inverse method

作　　者：王欣[1,2] 胡圣兴 杨哲 刘国安 李树明[2] WANG Xin;HU Shengxing;YANG Zhe;LIU Guoan;LI Shuming(School of Civil Engineering,Shandong Jianzhu University,Jinan 250101,China;Engineering Research Institute of Appraisal and Strengthening of Shandong Jianzhu University Co.,Ltd.,Jinan 250013,China)

机构地区：[1]山东建筑大学土木工程学院,济南250101 [2]山东建筑大学工程鉴定加固研究院有限公司,济南250013

出　　处：《建筑结构》2025年第1期114-121,150,共9页Building Structure

基　　金：建筑结构加固改造与地下空间工程教育部重点实验室开放基金课题“MRPC加固开洞砌体墙抗震机理研究”;山东建筑大学工程鉴定加固研究院有限公司课题“改性活性粉末混凝土(MRPC)加固装配式节点抗震性能研究”(H19230Z);山东建固特种专业工程有限公司横向课题(2019-YF002)。

摘　　要：为研究在逆作法施工下框架结构柱-板节点的破坏模式和抗震性能,设计制作了4个节点试件,其中2个为原焊接做法的钢环板节点试件,2个为新型混凝土环梁法节点试件,分别对两种节点进行轴压加载及拟静力加载试验。研究了拟静力加载下两种节点试件的滞回曲线、骨架曲线、刚度退化、位移延性和耗能能力等抗震性能指标,选取了试件关键位置的应变片进行了数据分析,并使用现行规范公式对试件进行了冲切承载力计算。试验结果表明:相对于钢环板节点试件,环梁法节点试件的承载能力、开裂荷载和累积能量耗散分别提升了20%、25%和73.1%,环梁法节点试件具有优越的强度和刚度,在传递复杂应力方面效果更有效,协同作用更明显。In order to study the failure mode and seismic performance of column-plate joints in frame structures under reverse method,four specimens were designed and made,including two steel ring plate joint specimens of the original welding method and two new concrete ring beam joint specimens.Axial compression and quasi-static loading tests were conducted on both types of joints.The seismic performance indicators such as hysteresis curve,skeleton curve,stiffness degradation,displacement ductility and energy dissipation capacity of two types of node specimens under quasi-static loading were studied.Strain gauges at key positions of the specimens were selected for data analysis,and the punching shear bearing capacity of the specimens was calculated using current standard formulas.The test results show that compared with the steel ring plate specimens,the load-bearing capacity,cracking load and cumulative energy dissipation of the ring beam specimens are increased by 20%,25% and 73.1%,respectively.The ring beam specimens have superior strength and stiffness.The ring beam specimens are more effective in transmitting complex stresses and have a more pronounced synergistic effect.

关 键 词：逆作法 钢环板节点 环梁法节点 抗震性能 轴压加载 拟静力加载 协同作用 

分 类 号：TU352[建筑科学—结构工程]