“互”形装配式节点受力性能的有限元研究  

Finite Element Analysis on the Mechanical Behavior of “HU” Assembly Connection

作　　者：郁有升[1] 张孝栋 于志军[1] YU Yousheng;ZHANG Xiaodong;YU Zhijun(School of Civil Engineering,Qingdao University of Technology,Qingdao 266033,China)

机构地区：[1]青岛理工大学土木工程学院,山东青岛266033

出　　处：《建筑钢结构进展》2018年第4期58-66,74,共10页Progress in Steel Building Structures

基　　金：山东省自然科学基金(ZR2017MEE068)

摘　　要："互"形装配式刚性节点将梁上、下翼缘拼接板交错布置在拼接梁与悬臂梁的外侧,拼接板与梁的焊缝均在工厂完成,现场只进行高强螺栓连接的一种节点形式。为了研究该新型装配式刚性节点的力学性能,通过改变翼缘拼接板宽度、厚度和摩擦系数设计了3组试件,应用ABAQUS软件进行有限元模拟分析。结果表明:拼接板厚度越大试件极限承载力越大,耗能越好;拼接板宽度对试件的受力性能影响不大;摩擦系数对试件的耗能影响明显,摩擦系数越大试件耗能性能越好。综合来看,"互"形装配式刚性节点具有良好的耗能和延性机理。此外,还将有限元结果与试验结果进行了比较,两者吻合较好。＂HU＂assembly rigid connection is a kind of connection that splice plates are interlaced on the cantilever beam lower flange and frame beam upper flange,splice plates to beams are welded in factory then installed using bolt connection on site only.In order to study the mechanical properties of this new rigid connection,three groups of specimens are designed by varying the plate width,thickness and friction coefficient.Finite element analysis is carried out using ABAQUS software.Results indicate that larger plate thickness can lead to larger ultimate bearing capacity of the test specimen,and better energy dissipation in each stage.The width of the splice plates has little impact on the mechanical properties of specimens.The friction coefficient has a significant effect on the energy dissipation of specimens.With larger friction coefficient,the energy dissipation performance also improves.In summary,＂HU＂assembly rigid connection has a good energy dissipation and ductility.In addition,finite element and experimental results are compared and they match well.

关 键 词：装配式节点 钢结构 悬臂梁拼接 滞回性能 摩擦耗能 

分 类 号：TU391[建筑科学—结构工程]