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国家网球馆是一座带有开合屋盖的现代大型体育场馆。在设计中提出开合屋盖的性能指标与设计荷载取值方法。屋盖开合状态对风荷载敏感,需要通过风洞试验确定风压分布与脉动特性。活动屋盖运行过程中台车反力不断变化,需要通过对其移动过程分析,找出最不利位置。研究了各种开合位置的结构动力特性,采用时程法与振型分解反应谱法分析活动屋盖在多遇地震作用下的响应。此外,在活动屋盖移动对固定屋盖轨道桁架变形影响分析的基础上,提出一种适用于圆形平面带矩形洞口结构的起拱曲面方程。
National Tennis Hall is a modern open stadium with large roof stadium. Put forward in the design of open roof performance index and design load value method. Roof open state is sensitive to wind load, wind tunnel test needs to determine the wind pressure distribution and pulsation characteristics. During the operation of the movable roof, the reaction force of the trolley constantly changes, and needs to be analyzed to find the most unfavorable position through the analysis of its moving process. The dynamic characteristics of the structure at various open and close positions were studied. The response of the movable roof was analyzed under the effect of frequent earthquakes using the time-history method and the vibration mode decomposition response spectrum method. In addition, based on the analysis of the influence of movable roof movement on the deformation of fixed roof trusses, a cambered surface equation suitable for the rectangular hole structure of circular planar zone is proposed.