摘要
青岛体育中心游泳跳水馆的屋面采用复杂大跨、多曲面异形钢屋盖。因为结构的整体稳定性能是该结构设计选型的重要因素,所以本文采用ANSYS有限元分析软件对结构进行整体稳定性分析,通过分析多种荷载工况下的特征值,了解结构在各种复杂荷载下的稳定性能。结果表明采用橡胶支座能有效降低温度对结构稳定性的影响;并在考虑几何非线性和材料非线性的情况下对结构进行非线性全过程分析,重点研究风荷载和初始缺陷对结构极限承载力的影响。研究表明非线性全过程分析对结构稳定分析更有实际意义。
The roof of Swimming and Diving Hall of Qingdao Sports Center is a steel roof wi th complexity,larger span,multiple-shaped curved surface.As the overall stabi lity of roof structure is a important factor in structure-design choice.The pa per analyses the overall stability of the roof structure and knows the structure ＇s stability under a variety of complex load by analyzing eigenvalue in differen t kinds of Load conditions in ANSYS software.The result shows that rubber suppo rt have an effect on reducing the influence from temperature on the structural s tability.Meanwhile,considering geometric and material nonlinearity,the paper also analyzes the whole process of nonlinear structures and focus on studying th e wind load and the influence cased by initial defects on ultimate bearing capac ity of the structure.The study results show that the complete nonlinear analysi s is more practical meaning on analyzing the structural stability Analysis.
出处
《土木工程与管理学报》
2011年第3期160-163,共4页
Journal of Civil Engineering and Management
基金
山东省博士后科研项目择优资助项目(200703004)
中国博士后科学基金第二批特别资助项目(200902540)
