节点连接模型对扣件式钢管模板支撑体系动力响应的影响  

Influence of Different Joint Models on Dynamic Response of Fastener Steel Tube Formwork Support System

作　　者：邱发强 王文泽 刘涛[2] 陈志为[2] 罗震发 QIU Faqiang;WANG Wenze;LIU Tao;CHEN Zhiwei;LUO Zhenfa(Jianyan Test Group Co.,Ltd.,Xiamen Fujian 361004,China;Xiamen University,Xiamen Fujian 361005,China)

机构地区：[1]健研检测集团有限公司,福建厦门361004 [2]厦门大学,福建厦门361005

出　　处：《工程质量》2020年第7期35-39,共5页Construction Quality

基　　金：福建省住房和城乡建设厅科技研究开发项目(2019-K-20)。

摘　　要：扣件式钢管模板支撑由于其施工操作简单,在工程中被广泛使用。由于其在施工中为临时结构,操作存在随机性,导致模板支撑体系倒塌事故常有发生,常会造成巨大的经济损失和人员伤亡。论文通过动力时程分析,对比扣件式钢管模板支撑三种节点连接模型在地震作用下的响应,发现扣件式模板支撑体系的节点连接模型对结构动力响应有显著影响。时程分析结果发现不同模型产生最大位移的差值最大为 15.85 %,最大支座反力差值最大为 25.26 %。Due to easy construction of fastener steel tube full-hall formwork support system,it is widely used in engineering.As temporary structure,collapse accidents of formwork support system often occur because of operation randomness,which will lead to huge economic loss and life safety.This paper compares the dynamic response of three kinds of joint models under earthquake,and finds that the joint model of fastener steel tube formwork support system has significant influence on dynamic response.Time-history analysis results reveal that the maximum difference of displacement response between different models is 15.85%,and that of the maximum reaction is 25.26%.

关 键 词：扣件式钢管模板支撑 动力时程分析 节点模型 半刚性节点 

分 类 号：TU755.2[建筑科学—建筑技术科学]