极限状态下灌浆套筒内锚固钢筋的受力原理及变形分析  

Stress Principle and Deformation Analysis of Anchoring Steel in Grouting Sleeve Under Limit State

作　　者：陈胜 徐采薇 徐其功 陈传涛 屈洋广 CHEN Sheng;XU Caiwei;XU Qigong;CHEN Chuantao;QU Yangguang(Guangdong Jianke Architectural Design Institute Co.,Ltd.,Guangzhou 510110,China;Department of Infrastructure Engineering,University of Melbourne,Parkville 3010,Australia)

机构地区：[1]广东省建科建筑设计院有限公司,广州510110 [2]墨尔本大学基础设施工程学院,澳大利亚帕克维尔3010

出　　处：《华南地震》2023年第2期151-157,共7页South China Journal of Seismology

基　　金：广东省建筑工程集团科技创新项目(JGLX2022004)。

摘　　要：灌浆套筒作为目前装配式混凝土建筑中较常用的一种结构构件间的连接形式,其性能直接关系到装配式建筑的整体抗震性能。此课题研发了一种灌浆套筒内钢筋极限状态下有效锚固段长度的计算方法,并结合多组灌浆套筒分别进行单向拉伸、高应力反复拉压、大变形反复拉压等试验,对计算方法的可行性进行了验证,研究成果对评价灌浆套筒的安全性具有重要的现实意义。As a commonly used connection form between structural members in prefabricated concrete buildings,the performance of grouting sleeve is directly related to the overall seismic performance of prefabricated buildings.A calculation method for the effective anchorage section length of the steel bar in the grouting sleeve under the limit state was developed,and its feasibility was verified by combining the multiple sets of grouting sleeves with the tests of uniaxial tension,high stress repeated tension and compression,and large deformation repeated tension and compression.The research results have great practical significance for evaluating the safety of grouting sleeves.

关 键 词：灌浆套筒 装配式建筑 钢筋锚固长度 钢筋受力变形 

分 类 号：TU37[建筑科学—结构工程]