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采用ANSYS分析软件,对顶端刚接和脱开的2种填充墙进行平面外受力变形性能的非线性数值模拟分析,考察了均布荷载和层间位移作用下,墙体开裂过程中的应力变化和破坏模式,验证了顶端刚接墙体在开裂后期存在明显的拱作用。结果表明:顶端刚接的填充墙在均布荷载作用下宜按三铰拱模型考虑,在层间位移作用下宜按两铰拱考虑;而顶端脱开、钢筋拉结的填充墙在均布荷载和层间位移作用下均可按顶端铰支、底端固接的模型考虑。
By using ANSYS software, the non-linear numerical simulation analysis of out-of-plane deformation and deformation of two kinds of infilled walls with the top and the bottom is carried out. The effect of uniform load and interlayer displacement on the stress Variations and failure modes, it is verified that there is a significant arch effect at the later stage of cracking. The results show that the filling wall with the top just under the uniform load should be considered according to the three-hinge arch model, and the two hinges should be considered under the action of the interlayer displacement. When the top is disconnected and the filling wall of the steel bar is uniformly distributed Under the action of load and interlayer displacement, the top hinged support and the bottom fixed model can be considered.