自密实混凝土叠合剪力墙屈服位移计算方法

在平截面假定的基础上，根据自密实混凝土(SCC)叠合剪力墙的受力特点，提出了其顶端屈服位移的计算方法，并用5个SCC叠合剪力墙试件的屈服位移试验值进行验证。通过计算分析，得到了轴压比、混凝土强度、分布钢筋的配筋率、锚固钢筋的配筋率与SCC叠合剪力墙屈服位移之间的关系。研究结果表明：在设计中选择经济合理的锚固钢筋配筋率、限制SCC叠合剪力墙的轴压比以及适当增加混凝土强度可以提高墙体在屈服状态的变形能力；提出的计算方法合理可靠，求得的计算值与试验值吻合较好。

Yield displacement calculation method of SCC composite shear walls

Based on the plane section assumption and the characteristic of self compacting concrete (SCC) composite shear walls, the calculation method of yield displacement was established and tested by the experimental results of five SCC composite shear walls. Then, the interrelated relationships among the axial compression ratio, the strength of concrete, the reinforcement ratio of distributing bars, the reinforcement ratio of anchor bars and the yield displacement were obtained. The results show that choosing the reasonable reinforcement ratio of anchor bars, limiting the axial compression ratio and increasing the characteristic value of strength of concrete can improve the yield displacement of SCC composite shear walls. The reliability of the method is certified through the comparison of the analysis results and the experimental results.