论文部分内容阅读
为提高对PBL剪力键群的计算分析能力,针对传递轴向拉力PBL剪力键群边界条件简单,复杂的整体结构由构造相同的简单结构组成的特点,以单孔PBL剪力键荷载-滑移曲线为基础,以钢构件、混凝土构件的平衡条件及位移协调条件为依据,结合子结构法求解复杂结构的思路,提出了求解PBL剪力键群传力机理的逐步扩大子结构法;通过与2孔、5孔和6孔PBL剪力键群传力机理有限元分析结果对比,验证了该方法的正确性。研究结果表明:剪力键群中各剪力键承担的荷载不仅与总荷载有关,而且与剪力键的位置及其刚度有关,设计时应综合考虑。
In order to improve the ability of calculation and analysis of PBL shear key group, a simple and complicated overall structure of the PBL shear bond group with axial tensile force is composed of the same simple structure, Based on the equilibrium conditions and displacement coordination conditions of steel members and concrete members, combined with the idea of sub-structure method to solve complex structures, a step-by-step extended substructure method was proposed to solve the force transfer mechanism of PBL shear bond groups. The correctness of this method is verified by comparison with the FEA results of two-hole, five-hole and six-hole PBL shear force transmission mechanism. The results show that the load of each shear key in the shear bond group is not only related to the total load, but also to the position of the shear bond and its stiffness. The design should be considered.