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在水平地震作用下,多层砌体结构一般只考虑层间墙体抗剪承载力和结构整体倾覆等方面的问题,而地震倾覆力矩对层间墙体的影响,特别是弯曲影响却很少研究.为此,提出一个新的计算模型,探讨了砌体结构在地震作用下的墙体内力和承载力,特别是由地震弯矩引起的墙体大偏心受压情况,并据此研究了地震倾覆力矩对墙体破坏的影响.倾覆力矩引起的墙体大偏心受压是引起砌体结构地震破坏的一个关键因素.
Under the action of horizontal earthquakes, multi-layered masonry structures generally only consider the problems of shear capacity and overall overturning of the interlaminar walls. However, the impact of the overturning moment of the earthquake on the interlaminar wall, especially the effects of bending, is minimal. For this purpose, a new calculation model was proposed to investigate the internal force and bearing capacity of masonry structures under the action of earthquakes, especially the large eccentric compression of walls caused by earthquake bending moments, and studied accordingly. The effect of earthquake overturning moment on the wall failure. The large eccentric stress of the wall caused by the overturning moment is a key factor causing the earthquake damage of the masonry structure.