基于性能的钢筋混凝土剪力墙受弯破坏变形限值的研究

为了确定钢筋混凝土剪力墙构件在不同性能状态下的变形能力，根据基于性能的抗震设计理论，结合20世纪70年代以来国内学者在钢筋混凝土剪力墙延性方面的试验研究结果，对120片以受弯破坏为主的钢筋混凝土剪力墙试件在不同性能状态下的延性性能进行分析，同时结合国内外规范中的相关规定，分别推导和拟合出剪力墙试件在各性能目标下截面曲率和塑性位移角的计算公式。同时根据地震超越概率分布特点得出适合GB 50011-2001《建筑抗震设计规范》（2008年版）的、轴压比为0≤n≤0.4的剪力墙在各性能目标下塑性位移角限值，并与美国相关规范中对应的目标位移限值进行比较和分析，为我国基于性能的钢筋混凝土剪力墙抗震设计提供相关参考。

Research on deformation limits of performance-based RC shear walls controlled by flexure

In order to determine the deformation index of RC shear walls under each performance objective, according to performance-based seismic design approach, the experimental results of ductility performance of RC shear walls conducted by domestic scholars since 1970s were reviewed with analyzing the ductility of 120 RC shear wall specimens main failed in flexure in different stress conditions. Meanwhile, on the basis of the relevant provisions of Chinese and foreign codes, the equations to calculate sectional curvature and plastic rotation angles of shear wall specimens for different performance objectives were derived. Based on the distribution of earthquake exceedance probability, the plastic rotation angle limits of RC shear walls with axial load ratio of 0≤n≤0.4 under each performance objective which is applicable for ‘Code for seismic design of buildings’GB 50011—2001 (2008 edition) was obtained, and then compared with corresponding limits in relevant US codes.