【摘要】 分析了各种因素对PRC结构竖向齿槽接缝抗剪强度的影响,指出:连接形式通过多种因素影响接缝抗剪;粘接影响接缝的破坏形式及接缝的抗剪强度;剪跨比增大,接缝抗剪强度降低;轴压力通过“剪切—摩擦”作用提供抗剪力;接合筋通过“剪切—摩擦”及销栓作用提供抗剪能力;接缝极限抗剪强度与缝宽无关,但剩余强度随缝宽增大而增大;反复荷载作用下,接缝抗剪强度退化等。对竖向齿槽接缝强度的设计提出了较为合理的方法。更多还原

【Abstract】 Many factors which influence the shear strength of vertical alveolus connection in PRC structures were analyzed. The paper points out that: connection style influences the shear strength in many ways; adhesive bond affects the strength and failure style, too;the bigger is the ratio of shear to span,the lower the strength is; the axial compression offers shear strength through "shear-friction" action; the connection rod produces shear strength through "shear-friction" and dowel action; the ultimate shear strength has nothing to do with the connection width, but the residual strength increases with it; the shear strength degenerates under repeated loading. Reasonable design methods were advised, too.更多还原