【摘要】 为了研究型钢混凝土(SRC)剪力墙的变形能力,利用其截面变形条件和平衡条件,建立了截面的屈服曲率与极限曲率的计算公式,并根据剪力墙曲率延性系数与位移延性系数的关系,用数值分析方法计算了SRC剪力墙的位移延性系数。通过计算分析,得到了SRC剪力墙的轴压比、边缘约束区箍筋配箍特征值、墙体高宽比与位移延性系数之间的关系。研究结果表明,适当增加SRC剪力墙约束钢筋的配箍特征值及限制墙体轴压比,可以提高SRC剪力墙的位移延性。给出了满足具体延性需求、对应各种轴压比情况下的SRC剪力墙边缘约束区箍筋最小配箍特征值。更多还原

【Abstract】 In order to study the deformation capacity of steel reinforced concrete(SRC) shear walls,the yielding curvature and the ultimate curvature of SRC shear walls were established by equilibrium and deformation condition.On the basis of relationship between the curvature ductility ratio and the displacement ductility ratio,the displacement ductility ratio of SRC shear walls was calculated by numerical method.Then,the interrelated relationships among the displacement ductility ratio,the axial compression ratio,the characteristic value of stirrup content and the aspect ratio were obtained.The results show that increasing the characteristic value of stirrup content and limiting the axial compression ratio can improve displacement ductility.Minimum confinement ratio was proposed with various axial compression ratios and it is satisfied for the certain ductility demand.更多还原