【摘要】 在实验的基础上,通过设置合理的几何参数和材料本构模型,建立了型钢高强混凝土短肢剪力墙节点的ABAQUS非线性有限元模型,并对配钢形式、连梁线刚度、轴压比和混凝土强度等参数对构件抗震性能的影响进行了讨论。结果表明:ABAQUS软件能够准确地完成对型钢高强混凝土短肢剪力墙节点构件受力过程的模拟,峰值承载力和位移的模拟值和试验值吻合较好。参数分析显示,实腹式配钢构件受力性能优于格构式配钢构件;随着轴压比的提高,构件的峰值承载力增大而延性变差;采用高强混凝土可大幅提高构件承载力,但也会导致其延性下降,因此,建议采用强度为C50-C60的混凝土以获得较好的综合效益。更多还原

【Abstract】 Based on experimental data,nonlinearity finite element models of steel reinforced high strength concrete(SRHC) short-leg shear wall joints were developed using ABAQUS by reasonably setting geometric parameters and material constitutive models.Parametric analysis was also carried out for different types of steel reinforcement,stiffness of couple beams,axial compressive ratio and concrete strength value.The results indicate that ABAQUS software is capable of simulating the bearing process of SRHC short-leg shear walls,and the peak bearing capacity and displacement values agree well with test results.Parametric analysis shows that mechanical performance of solid steel reinforced specimens is better than that of lattice steel reinforced specimens;with the increase of axial compression ratio,the loading capacity gets higher while the ductility gets worse;high strength concrete can dramatically increase the loading capacity meanwhile decrease the ductility,therefore,concrete strength of C50-C60 is recommended for better combined revenues.更多还原