钢筋混凝土剪力墙和组合结构构件的轴压比控制

Control of axial compression ratio of reinforced concrete shear wall and composite structure members

基于竖向构件轴压比的物理本质,对各规范中相关轴压比的条文进行比较与讨论。建议规定特一级抗震竖向构件的轴压比,剪力墙宜按全墙高控制轴压比,剪力墙底部加强区与非底部加强区的轴压比限值应有所不同,且二级抗震与三级抗震剪力墙的轴压比限值也应有所不同。对钢筋混凝土剪力墙、型钢混凝土柱、型钢混凝土剪力墙、钢板混凝土剪力墙的轴压比限值及其计算方法给出了建议。

The provisions about axial compression ratio in different codes were compared and discussed based on the physical essence of axial compression ratio for vertical members. It was recommended that the axial compression ratio of vertical members of special first-level seismic grade should be provided,that the axial compression ratio of the shear wall should be controlled along the whole wall height,that the limited values of bottom strengthening zone and other zones of the shear wall should be different,and that the limited values of shear wall with second-level and third-level seismic grades should be different. Recommendations on limit values and calculating method of axial compression ratio for reinforced concrete shear wall,steel reinforced concrete column,steel reinforced concrete shear wall and steel plate concrete shear wall were given.