【摘要】 通过4个型钢高强混凝土短肢剪力墙-连梁节点试件和1个高强混凝土短肢剪力墙-连梁节点试件的低周反复荷载试验,主要研究配钢形式、轴压比和连梁结构类型对节点的滞回特性、变形能力及耗能能力等性能的影响。结果表明:型钢高强混凝土短肢剪力墙-连梁节点的滞回曲线饱满,承载力、刚度以及抗震性能较高强混凝土短肢剪力墙节点均有所改善,所有试件的延性均小于3,极限层间位移角均小于1/100,等效黏滞阻尼系数在0.17～0.24之间,表现出其延性和抗倒塌能力较差,耗能能力较好。更多还原

【Abstract】 Four SRHC short-leg shear wall and coupling beam joints and one reinforced high-strength concrete(RHC) short-leg shear wall and coupling beam joint were designed for the low cyclic loading test.The influences of hysteretic behavior,deformability and energy dissipation capacity on the main variable parameters of steel type,axial compression ratio and beam type were studied.Results indicate that the hysteretic hoops of SRHC short-leg shear wall and coupling beam joints are plump,bearing capacity,stiffness and seismic performance are higher than RHC short-leg shear wall and coupling beam joint.But ductility is less than three,ultimate story drift is less than 1/100,and equivalent viscous damping coefficients vary from 0.17 to 0.24.It shows that all specimens have poor ductility,poor anti-collapse capacity,and higher energy dissipation capacity.更多还原