【摘要】 为了提高高强混凝土剪力墙的侧向变形能力,通常在剪力墙截面两端设置约束边缘构件。根据15个设置约束边缘构件高强混凝土剪力墙弯曲(弯曲剪切)破坏的试验结果,以开裂点、屈服点、峰值点和极限点将这种剪力墙截面的弯矩-曲率骨架曲线简化为4线型;基于平截面假定,分别推导了开裂、屈服、峰值以及极限点的弯矩和曲率表达式,同时考虑了边缘约束构件对峰值、极限点的弯矩-曲率的影响。分析结果表明,弯矩-曲率的计算值均与试验值吻合较好。更多还原

【Abstract】 In order to improve the lateral deformation capacity of the high strength concrete shear wall,partially confined end-zones are usually set in the both ends of the shear wall cross-section.According to the experimental results of 15 high strength concrete shear walls flexural(flexural-shear) failure,the moment-curvature skeleton curve of the shear wall cross-section is simplified as four lines by cracking point,yield point,peak point and ultimate point.Based on the plane-section assumption,the expressions of bending moment and curvature for the cracking,yielding,the peak and the ultimate state are derived.The effects of partially confined end-zones on peak point,the ultimate moment and curvature are also taken into account.The analysis results show that,the calculated values are in good consistent with the experimental data.更多还原