MODAL ANALYSIS ON VIBRATION BEHAVIOR OF COLD-FORMED STEEL CONCRETE COMPOSITE FLOOR

摘要：

This paper analyses the vibration behavior of coldformed steel composite floors by using the ANSYS finite element method. Through analysis of the experimental model, finite element modal results agree well with test results. Under the cases of the characteristic combination of loads, the research analyzes the effects to the fundamental frequency of composite floor by changing the parameters, such as end constraints, thickness of the joist or concrete composite slabs, profiled steel sheet type, joists spacing, and floor width. The results of finite element analysis show that the effects to the fundamental frequency of composite floor are large by changing the thickness of the joist, the floor end constraints, and joists space, but the effects are very small when the thickness of concrete composite slabs, profiled steel sheet type, or floor width is changed. So when designing the composite floors, the profiled steel sheet of smaller wave height and wave distance is suggested, the space of screws should accord with the profiled steel sheet type. And the space between the joists of composite floor had better smaller than 600mm.

关键词： composite floor cold-formed steel joists fundamental frequency finite element analysis

作者: Zi-Wen Jia Xu-Hong Zhou Tian-Hua Zhou Yu Shi

作者单位: School of Civil Engineering, Changan University, Xian 710061, P.R. China School of Civil Engineering, Changan University, Xian 710061, P.R. China School of Civil Engineeri

会议类型: 国际会议

会议名称: 2009年土木工程结构创新与可持续发展国际会议(The International Symposium on Innovation & Sustainability of Structures in Civil Engineering)

会议地点: 广州

会议语种:英文

页码: 701-706

在线出版日期: 2009-11-28（万方平台首次上网日期，不代表论文的发表时间）