建筑钢结构进展2024，Vol.26Issue(1)：65-76,12.DOI:10.13969/j.cnki.cn31-1893.2024.01.007
型钢混合连接装配式混凝土剪力墙结构受力机理研究
A Study on the Mechanical Behavior of Precast Concrete Shear Wall Structure with Hybrid Connection of Section Steel
摘要
Abstract
A new type of steel hybrid connection is proposed by utilizing the advantages of reinforced concrete structure and steel structure.Shear wall models were generated by using finite element software ABAQUS and verified by using the experiment results.The mechanical properties of shear walls with hybrid connections of section steel were investigated under low reversed cyclic loads.The failure mode,deformation curve and characteristic bearing capacity of the model were analyzed,and the influence of material strength,axial compression ratio,number of connectors,and section height of steel on the mechanical properties of the new prefabricated shear wall structure were explored.The result indicates that the failure mode of prefabricated shear wall is a bending failure,and the steel connector remains intact during the failure,which achieves the goal of"strong connection,weak wall limb".This hybrid connection has a better bearing capacity,ductility and stiffness.The axial compression ratio has a significant impact on the bearing capacity of the shear wall,and the ductility of the shear wall can be effectively improved with the increase in the spacing of the hybrid connections.A calculation formula of shear demand bearing capacity in the steel hybrid connection is proposed and compared with the calculated values of domestic and foreign codes.Compared with the simulated values,the errors of the calculated values of the formula and the calculated values from BS EN 1992 European code are within 15％and 20％,respectively,which can provide a reference for the design of steel hybrid connection.关键词
装配式/剪力墙/型钢混合连接/竖向接缝/受力性能/有限元分析Key words
precast concrete shear wall/section steel hybrid connection/vertical joint/mechanical behavior/finite element analysis分类
建筑与水利引用本文复制引用
袁玉杰,牟凤飞,史艳莉,王文达..型钢混合连接装配式混凝土剪力墙结构受力机理研究[J].建筑钢结构进展,2024,26(1):65-76,12.基金项目
甘肃省高等学校协同创新团队计划(2018C-08),甘肃省建设科技计划项目(JK2021-42),兰州理工大学红柳优秀人才支撑计划 （2018C-08）
