Research on seismic performance of end-plate composite shear wall-steel beam connections based on finite element method

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), Jan.2025, Vol.48 No.1: 127-135, 144

DOI: 10.3969/j.issn.1003-5060.2025.01.019

Authors

CHEN Lihua $ ^{1,2} $, SHI Jintao $ ^{1,2} $

(1. School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China; 2. Anhui Key Laboratory of Civil Engineering Structures and Materials, Hefei 230009, China)

Abstract and Keywords

Abstract: In order to study the seismic performance of end-plate double skin composite shear wall-steel beam connections, this paper designed three full-size connections by changing the thickness of the end-plates, carried out low-cycle reciprocating loading tests, and used ABAQUS software to conduct finite element analysis and simulation of equivalent plastic strain damage criteria for the connections. The effects of steel type, beam end cover plate, axial compression ratio and stiffener on the seismic performance of the connections were investigated. The results show that the connection specimens have good seismic performance, and the simulation results are in good agreement with the test results. The bearing capacity and stiffness of the connections can be effectively improved by increasing the yield strength of the steel, adopting the upper cover plate of the full-section beam, increasing the thickness of the cover plate and setting the stiffener of the beam end. Based on the results of plastic limit analysis, the end-plate thickness design method of this type of connection is proposed.

Keywords: double skin composite shear wall; wall-beam connection; ABAQUS finite element; stress triaxiality; design method

作者信息

陈丽华 $ ^{1,2} $，石锦涛 $ ^{1,2} $

(1. 合肥工业大学土木与水利工程学院，安徽合肥 230009；2. 土木工程结构与材料安徽省重点实验室，安徽合肥 230009)

摘要和关键词

摘要: 为研究端板式双钢板组合剪力墙-钢梁节点抗震性能,文章通过改变端板厚度设计3个足尺节点试件,开展低周往复加载试验,利用ABAQUS软件对节点进行等效塑性应变损伤准则的有限元分析模拟,探究钢材种类、梁端盖板、轴压比及设置加劲肋等对节点抗震性能的影响。结果表明:节点试件具有良好的抗震性能,且模拟分析结果与试验结果吻合度较好;通过提升钢材屈服强度、改用全截面梁上盖板、增加盖板厚度及设置梁端加劲肋等方式可有效提升节点的承载力和刚度;最后依据基于塑性极限分析法推导结果提出了该类型节点的端板厚度设计方法。

关键词: 双钢板组合剪力墙；墙梁节点；ABAQUS有限元；应力三轴度；设计方法

Funding

国家自然科学基金资助项目（51778202）

合肥工业大学学报(自然科学版)

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