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轻质木框架房屋墙体主要承受竖向荷载以及地震或风作用下的水平荷载。当该类房屋结构中所有木质剪力墙所组成的重心与房屋平面形心不重合时,水平风荷载会使房屋扭转而产生扭矩。本文利用ANSYS软件对风荷载作用下轻质木框架房屋进行有限元模拟,通过模拟结果分析剪力墙体中水平剪应力分布状况。模拟结果验证房屋存在受扭现象且各剪力墙中存在扭矩作用下的附加水平剪力,对轻质木框架房屋设计提供一定的参考意义。
Light wood frame house walls are mainly subjected to vertical loads and horizontal loads caused by earthquakes or winds. When the center of gravity of all the wooden shear walls in the structure of this kind of house does not coincide with the centroid of the house, horizontal wind load will twist the house to generate torque. In this paper, ANSYS software is used to simulate the light wood frame house under wind load. The horizontal shear stress distribution in the shear wall is analyzed by simulation results. The simulation results verify that the house is twisted and the additional horizontal shear force under the action of torque in each shear wall provides some reference significance for the design of light wood frame house.