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The high-strength cold-formed steel structure system has the advantages of lightweight material, material saving, energy saving and environmental protection, and shorter design cycles, building durability, environmentally friendly, easy to industrial production, scene combinations install shortcut has a series of advantages in low-rise residential buildings. This structural system in foreign low-rise construction industry has been widely used in recent years, China is also ready to promote the use of domestic enterprises most of the introduction of Europe, America and Australia, complete sets of equipment, technology, construction materials production lines and design software for the industrial design and production. Abroad in the design and engineering applications of high-strength cold-formed steel structure and there are large differences in China, China's relevant design specifications and procedures not been able to fully meet the needs of the design and construction of such structures, especially in its wall frame structure of the skin effect has not yet started, so it is very necessary to study it. Miter construction technology, Wuhan Co., low-rise high-strength cold-formed steel residential project engineering background, the main wall of the residential building frame structure of the object of study, the skin effect of high-strength cold-formed steel wall frame exploratory analysis. Of this work include: (1) using ANSYS finite element method study of high strength cold-formed steel the independent wall frame structure of the skin effect, taking the material nonlinearity and geometric nonlinearity, the entire skin structure modal analysis, eigenvalue buckling analysis and nonlinear buckling analysis. Based on the finite element calculation of the results of analysis of the failure mode of a separate wall bracket deformation characteristics and ultimate bearing capacity. (2) to explore the \skin effect \(3) collect and summarize once the skin test and theoretical data for research, get some help finite element model and analysis method. (4) based on the finite element model of the combined unit wall frame and skin panels, the analysis of the various factors that affect the skin effect, including: skin thickness, skin material properties and self-tapping self drilling screw spacing. Buckling analysis of structures using the finite element method, compared with the structure of skin panels to analyze the impact of the above factors on the structure of the wall frame shear capacity. The analysis results show that: With self drilling screw pitch increases, the shear capacity of the wall frame and skin combination reduced; With the increase in the thickness of the skin panels, the modulus of elasticity of the skin panels, wall frame and skin The combination of increased shear capacity. Finally, the above work, draw some useful conclusions, and raised the issue needs further study.
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