钢管混凝土框架结构和轻型集成房屋结构体系防火性能的研究

Research on the Fire Resistance of CFST Frame,Modular House and Sandwich Panel

本文为了得到火灾中不同材料结构的整体耐火性能,分别研究了钢管混凝土和纯钢材两种整体结构。对于钢管混凝土框架结构,分析了其在火灾条件下的整体耐火性能、钢管混凝土构件在实际边界约束条件下及不同受火面对其耐火性能的影响,在此基础上对今后结构体系的防火性能设计提出了意见和建议。对于轻钢整体结构,则以雅致公司提供的三种集成房屋为依据,用有限元理论分析了四种荷载组合情况下,集成房屋在火荷载情况下的承载力与变形,得到集成房屋的使用耐火极限和破坏情况,提出了改进办法和设计建议。并在四川国家防火建筑材料质量监督检测中心进行的岩棉夹心板耐火试验基础上,应用有限元理论分析了岩棉彩钢夹心板耐火性能,并研究了不同耐火性能板材的岩棉夹心板和EPS夹心板的框架结构在实际应用中的整体耐火性能。

In this paper, in order to get the fire resistance of integral structures with two different materials, concrete-filled steel tubular framed structures and the pure steel structures are analyzed. The results of fire resistance of integral concrete-filled steel tubular （CFST） framed structures in fire conditions are presented. The different fire proof effects of structural frames between the actual boundary condition and different faces of elements under the fire. On the base of it, suggestions and recommendations are presented for possible adoption in future construction and design of these structure systems. The fire design of modular house is based on the experience which is lack of exact theory basics. In this paper, for getting the using performance and destroy case, finite element theory is used to analyze the carrying capacity and distortion of the modular house, provided by Yahgee company, in four loading combination. Useful suggestions to improre the production and design of the house were provided to the company. At the same time, the fireproofing performance of rock wool sandwich panel was analyzed by FEM theory and compared with the test results in Si Chuan National Supervise Center of Fireproofing Architectural Material Quality. In the end, the fireproofing performance of the integral frame structure with rock wool sandwich panel and EPS sandwich panel in the practice engineering were analyzed in this paper.