【摘要】 首先分析了澳门综合体育馆屋盖钢结构主桁架和次桁架的受力关系 ,据此确定了次桁架的安装方案 ,并对安装过程中主次桁架的内力、变形及支座反力做了全过程跟踪计算分析 ,验证了安装方案及后续桁架对接的可行性。最后根据桩基的沉降试验数据 ,计算了支座反力及沉降量对整体结构性能的影响 ,验算了结构在产生不均匀沉降状态下的安全性。更多还原

【Abstract】 The installation scheme and analysis procedure of the steel roof of Macao Gym are presented. First, the interaction between main and secondary trusses in the roof is analyzed to identify their individual contributions to ap plied loading. Based on the results obtained above, the installation approach an d steps of the secondary trusses is determined. Then the internal forces, deform ation and support reaction in the trusses are traced and calculated during full construction process. The obtained results verify the applicability of the insta llation approach, and the joining gap between main and secondary trusses is suit able. Finally, according to the data provided from piling settlement experiment, the effect of the reaction and settlement on the steel roof structure performan ce is determined and the roof safety in the state of uneven settlement is chec ked.更多还原