螺栓和胶栓混合连接的GFRP梁柱新型端板节点的抗震性能分析  

Seismic performance analysis of a new type end plate joint of GFRP beam-column with bolted and bolt-adhesive hybrid connection

作　　者：肖潇 马超 张铁山 XIAO Xiao;MA Chao;ZHANG Tieshan(School of Civil Engineering,University of South China,Hengyang 421001,China;China Construction Eighth Engineering Division Corp.Ltd.,Tianjin 300000,China)

机构地区：[1]南华大学土木工程学院,衡阳421001 [2]中国建筑第八工程局有限公司,天津300000

出　　处：《复合材料科学与工程》2025年第2期108-116,共9页Composites Science and Engineering

基　　金：湖南省自然科学基金项目(2021JJ50015);湖南省教育厅科学研究重点项目(20A426)。

摘　　要：本文基于ABAQUS有限元仿真软件,研究螺栓连接和胶栓混接两种不同连接方式的GFRP梁柱新型端板节点在低周循环荷载下的抗震性能。探究不同螺栓预紧力和胶接长度对节点的抗震性能影响,设计了八个试件,从滞回曲线、骨架曲线、耗能能力以及刚度退化四个方面进行有限元分析。结果表明:新型端板节点的滞回曲线更饱满,所包围的面积更大。随着螺栓预紧力的增大,节点的承载能力、刚度和耗能均有提高;胶栓混合连接节点的刚度比螺栓连接节点的刚度也有较大的提高。Based on ABAQUS finite element simulation software,this paper studies the seismic performance of GFRP beam-column new end-plate joints under low-cycle repeated loading with two different connection methods:bolted connection and adhesive-bolt hybrid connection.To investigate the effects of different bolt preloads and adhesive joint lengths on the seismic performance of the joints,eight specimens were designed for finite element analysis in terms of hysteresis curve,skeleton curve,energy dissipation capacity,and stiffness degradation.The results showed that the hysteresis curve of the new end plate joints is fuller and the enclosed area is larger.With the increase of bolt preload,the load carrying capacity,stiffness and energy dissipation of the joints were improved;the stiffness of the adhesive-bolt hybrid joints also improved more than that of the bolt only joints.

关 键 词：胶栓混合连接 GFRP梁柱 新型端板节点 抗震性能 有限元分析 

分 类 号：TB332[一般工业技术—材料科学与工程]