钢筋混凝土剪力墙延性的试验和计算

目的是研究相对压区高度（或轴压比）、端部约束箍筋和高宽比与剪力墙延性的关系。介绍了１０片相对压区高度为０．０６１至０．４４３的剪力墙试件的延性试验结果；建立了考虑端部混凝土约束的剪力墙曲率延性的计算方法。试验结果验证了计算方法的可靠性。用该计算方法对影响剪力墙延性的因素进行了分析。试验和理论分析都表明，为保证剪力墙达到预定的延性要求，应限制剪力墙的相对压区高度（或轴压比）和设置约束边缘构件。

Experimental and computational studies on ductility of reinforced concrete shear walls

Relations between ductility of the reinforced concrete shear wall and its relative depth of compressive zone of concrete section (or ratio of compressive stress to compressive strength of concrete), confinement of boundary zones, and aspect ratio were studied. Experimental results of ten shear wall specimens with relative depth of compressive zone of 0.061 to 0.443 were briefly introduced. A computational method for curvature ductility of shear walls with confined boundary zones was established. The calculated ductility ratios are in good agreement with the experimental results. Using the established method, factors influencing the ductility of shear walls were studied. It is concluded that to make the shear walls have expected ductility, the relative depth of compressive zone of concrete section should be limited and confined boundary zones must be provided.