结构工程师2025，Vol.41Issue(3)：104-114,11.DOI:10.15935/j.cnki.jggcs.202503.0011
型钢-高强混凝土剪力墙抗震性能试验及数值模拟分析
Seismic Performance Test and Numerical Simulation of Steel Reinforced High-Strength Concrete Shear Walls
摘要
Abstract
The seismic performance of steel high-strength concrete shear walls(SHCWs)under high axial compression ratio is studied by cyclic loading test.The UMAT subroutine of ABAQUS was used to develop the constitutive model of concrete and steel,and the numerical model of each wall specimen is established.Parameter analysis was conducted based on the finite element models verified by experiments.The results show that the SHCWs has good deformation and energy dissipation performance under high axial compression ratio.The numerical model can accurately predict the pinch effect and strength decline of the hysteresis curves.The simulated and experimental hysteresis curves have similar loading and unloading stiffness,bearing capacity,ultimate displacement and energy consumption.The parametric analysis shows that the steel ratio can be effectively reduced(approximately 66.7%)by increasing the concrete strength(C60→C80)under the premise of ensuring the hysteretic performance of the walls.By increasing the axial compression ratios(0.4→0.6),the deformation performance of the SHCWs is significantly reduced(ulitimate drift ratios 2.96%→4.70%),and the post-peak strength decrease of the walls is accelerated.By increasing the steel ratio of the wall(2%→10%),the increase of bearing capacity of the wall is limited,and the deformation performance of the wall is little affected.关键词
型钢-高强混凝土剪力墙/抗震性能/低周反复加载试验/高轴压比/数值模拟Key words
SHCWs/seismic performance/cyclic loading test/high axial load ratio/numerical simulation分类
建筑与水利引用本文复制引用
张强,吕西林,赵斌,倪向勇..型钢-高强混凝土剪力墙抗震性能试验及数值模拟分析[J].结构工程师,2025,41(3):104-114,11.基金项目
国家重点研发计划(2020YFB190140201) （2020YFB190140201）
