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主要研究目前低层民居中正被推广使用的轻钢密立柱墙体的蒙皮效应。通常认为轻钢密立柱钢架是一个非稳定的体系,然而,当立柱表面与墙面板(石膏板及OSB定向刨花板)可靠连接时,墙体形成了一个稳定封闭的结构体系,板可以与轻钢钢架协同工作,并提高结构的整体强度及刚度。考虑墙面板的应力蒙皮效应可使结构设计更加符合真实的受力状态,而且也能提高经济效益。因此考虑应力蒙皮效应具有重要的理论价值和现实意义。在参照相关试验结果的基础上,运用有限元程序ANSYS对应力蒙皮效应采用了数值模拟,并深入分析了蒙皮效应的破坏形态及其工作机理。
The main research is currently in the low-rise residential areas are being popularized use of lightweight steel dense column wall effect. However, when the column surface is reliably connected to the wall panels (gypsum board and OSB OSB), the wall forms a stable, closed system of construction that is compatible with the light Steel frame work together and improve the overall strength and stiffness of the structure. Considering the stress skinning effect of the wall panel, the structural design can be more in line with the actual stress state, and the economic benefit can also be improved. Therefore, considering the effect of stress skinning has important theoretical value and practical significance. Based on the related experimental results, the finite element program ANSYS is used to simulate the effect of the stress skin and the damage morphology and working mechanism of the skin effect are analyzed.