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对于型钢混凝土叠合剪力墙新型结构体系,把握墙体内钢筋应力变化规律是准确计算叠合墙体刚度及优化钢筋配置的基础。在低周反复荷载作用下,通过对1个全现浇型钢混凝土剪力墙、3个型钢混凝土叠合剪力墙的足尺比例试件进行对比试验研究,分析并对比了内置的钢筋及型钢应变值。结果表明:桁架钢筋能够有效地连接预制墙板与现浇混凝土层,使其在受力时能够协同工作。型钢混凝土叠合剪力墙可以采用底部加密分段约束箍筋,型钢下部可焊接多排、双侧栓钉,从而避免混凝土与型钢之间滑移,减小通缝宽度。
For the new type of structural system of SRC superimposed shear wall, grasping the law of stress variation of the reinforcement in the wall is the basis for accurately calculating the stiffness of the overlapped wall and optimizing the configuration of the reinforcement. Under the action of low cycle repeated load, the full scale ratio specimens of one fully cast steel reinforced concrete shear wall and three steel reinforced concrete composite shear walls were compared and analyzed, and compared with the built-in steel and steel Strain value. The results show that the truss steel bar can effectively connect the prefabricated wall panels with the cast-in-place concrete so that they can work together under the stress. Reinforced concrete shear walls can be used at the bottom of the confinement confinement stirrups, the lower part of the beam can be welded to multiple rows, bilateral pegs, so as to avoid the slip between the concrete and the profile to reduce the gap width.