混凝土小型空心砌块墙体抗剪性能数值模拟研究

Numerical simulation of shear performance of small concrete hollow block masonry wall

对混凝土小型空心砌块砌体墙的抗剪性能进行了研究,建立了不同高宽比的混凝土小型空心砌块砌体墙有限元分析模型。对不同的高宽比的砌块砌体墙在不同的竖向荷载作用下的水平抗剪性能进行了数值分析,计算了墙体的水平开裂荷载和破坏荷载,模拟了墙体从开裂到破坏的全过程,分析了不同的竖向荷载和不同的高宽比对墙体水平抗剪性能的影响。墙体受竖向荷载和水平荷载共同作用是工程中常遇到的一种受力状态,研究砌块砌体墙在这种受力状态下的开裂过程和破坏以及高宽比对墙体的开裂与破坏的影响,对于丰富砌体结构的基本理论和工程设计具有较大意义。

To concrete small hollow block walls,five modes of block walls of different ratio of height to width have been made.The characteristic of the block walls of different ratio of height to width with horizontal load and vertical load have been analyzed.Strength and deformation behaviors for all kinds of block walls have been analyzed.The development of crack of the block walls have been described in detail.It is normal appearance for walls under horizontal load and vertical load.The research is meaningful to enrich the theories of masonry structure and guide the engineering design.