600 MPa级钢筋套筒灌浆连接循环拉压力学性能研究  

Study on cyclic tensile and compressive mechanical propertiesof 600 MPa grade steel sleeve grouting connection

作　　者：郑永峰[1,2] 刘秀斌 解鸣 孙富爽 丁鑫 ZHENG Yongfeng;LIU Xiubin;XIE Ming;SUN Fushuang;DING Xin(School of Civil Engineering,Shandong Jianzhu University,Jinan 250101,China;Key Laboratory of Building Structural Retrofitting and Underground Space Engineering(Shandong Jianzhu University),Ministry of Education,Jinan 250101,China;Shandong Jianzhu University Design Group Co.,Ltd.,Jinan 250013,China)

机构地区：[1]山东建筑大学土木工程学院,山东济南250101 [2]山东建筑大学建筑结构加固改造与地下空间工程教育部重点实验室,山东济南250101 [3]山东建筑大学设计集团有限公司,山东济南250013

出　　处：《山东建筑大学学报》2025年第2期35-44,共10页Journal of Shandong Jianzhu University

基　　金：山东省自然科学基金项目(ZR2022ME018);山东省重点研发计划(重大科技创新工程)项目(2021CXGC011204);山东省住房城乡建设科技规划项目(2019-K9-7)。

摘　　要：对循环荷载作用下600 MPa级钢筋套筒灌浆连接力学性能试验研究,可为高强钢筋套筒灌浆连接接头的应用提供理论依据。文章采用HRB600E钢筋、高强度水泥基灌浆料和无缝钢管滚压灌浆套筒(Grouted Deformed Pipe Splice, GDPS),以钢筋锚固长度和套筒环肋数量为变量制作了14个接头试件,研究钢筋套筒灌浆连接接头在高应力和大变形反复拉压荷载下的结构性能;利用有限元分析软件ANSYS模拟了接头,分析套筒灌浆料间接触压应力的变化规律。结果表明:钢筋锚固长度和套筒环肋数量对接头的强度及变形性能均有较大影响;对于直径为28 mm的600 MPa级钢筋套筒灌浆连接接头的设计参数,建议钢筋锚固长度≥8d,套筒每端环肋数量≥6道。The experimental study on the mechanical properties of 600 MPa grade steel sleeve grouting connection under cyclic loading can provide a theoretical basis for the application of high strength steel sleeve grouting connection joints.In this paper,14 joint specimens were made with HRB600E steel bars,high-strength cement-based grouting materials and GDPS sleeves,the structural performance of steel sleeve grouting joints under high stress and large deformation repeated tension and compression loads was studied.The joint was simulated the finite element analysis software ANSYS,the variation law of contact compressive stress between sleeve grouting materials was studied.The results show that the anchorage length of steel bar and the number of sleeve ring ribs have great influence on the strength and deformation performance of the joint;For the design parameters of the grouting connection joint of the steel sleeve with a diameter of 28 mm and 600 MPa,it is recommended that the anchorage length of the steel bar is not less than 8 d,and the number of ring ribs at each end of the sleeve is not less than six.

关 键 词：600 MPa级钢筋 灌浆套筒 循环加载 有限元分析 

分 类 号：TU317.1[建筑科学—结构工程]