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目前框支墙梁结构广泛应用于我国城乡建设中,但计算比较复杂,阻碍了其在工程中的应用。采用常用材料和构件几何尺寸进行正交设计,对两跨至五跨(有洞口和无洞口)的24个框支墙梁构件在竖向荷载作用下进行有限元分析,进一步了解了框支墙梁的应力与组合内力的分布,通过对控制截面内力进行回归分析得出拟合内力图来包络有限元分析内力图,提出框支墙梁中托梁的内力简化计算公式。为工程设计和新规范关于墙梁涉及内容的修订提供建议,具有一定的社会和经济效益。
At present, the frame-supported beam structure is widely used in the construction of urban and rural areas in our country, but the calculation is more complicated, which hinders its application in engineering. The orthogonal design was carried out by using the commonly used materials and the geometric dimensions of the members. The finite element analysis of 24 framed members with two spans to five spans (with or without openings) under the action of vertical loads was carried out. By analyzing the internal force of the control section by regression analysis, the internal force diagram of the control cross-section is obtained by enveloping the finite element analysis of the internal force diagram, and the simplified calculation formula of the internal force of the girder in the frame-supported wall beam is proposed. It provides some social and economic benefits for engineering design and the new code to provide suggestions on the revision of the contents of the wall beam.