论文部分内容阅读
对混合结构的承重纵墙进行非线性全过程分析,计算简图是由钢筋混凝土梁和砖砌体柱组成的组合平面框架,采用实际刚度法的杆系模型。分析结果表明,墙体的约束弯矩与上部压力及梁的上部钢筋面积紧密相关;在加载过程中,墙体不断发生内力重分布;变截面墙体会出现弯矩变号,最大弯矩不一定与最大荷载对应,同时指出了线弹性分析方法所得计算结果的误差较大,并分析了原因。
The nonlinear full-process analysis of the load-bearing wall of the hybrid structure is carried out. The calculated sketch is a combined plane frame consisting of reinforced concrete beams and brick masonry columns. The rod model of the actual stiffness method is used. The analysis results show that the restraining bending moment of the wall is closely related to the upper pressure and the area of the upper reinforcement of the beam. During the loading process, the internal force of the wall undergoes constant redistribution; the wall of the variable section will have a moment change sign, and the maximum bending moment is not It must correspond to the maximum load. At the same time, it points out that the error of the calculation result obtained by the linear elastic analysis method is larger, and the reason is analyzed.