槽钢剪力连接件的性能研究第二部分:分析研究

建立了一个有效的数值模型,主要是利用有限元方法模拟槽钢剪力连接件的试验。重点测试单调加载下钢筋混凝土板的槽钢剪力连接件的抗剪能力。通过第一部分的试验研究中的试验数据证实,本文的数值模型是有效的,而且与北美设计规范中给出的数据进行了对比。利用这个非线性模型进行的参数研究主要涉及混凝土强度、开槽尺寸和开槽方向等变量。结果显示:混凝土强度、开槽腹板和翼缘厚度以及开槽的长度都对槽钢剪力连接件的极限强度影响很大,但是开槽截面高度的影响很有限。同样,改变开槽的方向也会对剪力连接件的刚度和极限强度产生影响。

Behavior of Channel Shear Connectors, Part II:Analytical Study

In this second part of the two companion papers an effective numerical model is proposed using finite element method to simulate the push-out test of channel shear connectors. The focus is on the shear capacity of channel shear connectors embedded in a solid reinforced concrete slab under monotonic loading. The model has been validated against test results presented in Part (I) and compared with data given in North American design codes. Parametric studies using this nonlinear model are performed to investi...