机构地区: 深圳大学
出 处: 《建筑结构》 2011年第4期24-28,10,共6页
摘 要: 2011年第26届夏季世界大学生运动会篮球馆为一复杂体育建筑,其上部钢结构屋盖直径72m,为采用单层网壳加弦支体系组成的弦支穹顶结构体系,支承于沿72m直径圆周边均匀布置的24根钢筋混凝土柱上。围绕屋盖结构选型、受力特点及结构设计中的关键性问题,进行了以下的分析研究:弦支穹顶屋盖设计控制标准;弦支穹顶下部索杆体系的布置;预应力的大小选用原则分析;屋盖屈曲稳定分析;预应力张拉整体结构施工全过程模拟及施工方案分析;复杂节点实体有限元计算分析。从中归纳、总结了弦支穹顶屋盖结构设计中应注意的关键问题及应采取的结构措施,可供同类工程参考。 The suspend-dome structure is designed for the steel roof of Pingshan Basketball Gymnasium for Universidad 2011 Shenzhen,with the overlapping diameter 72m,and is supported by 24 RC columns evenly distributed along the periphery.The following analyses were carried out: the design criterion of the suspend-dome;the linear and nonlinear buckling analysis;the detail analysis of the complex key joint,the arrangement analysis of the suspending chord and the prestressed cable;the construction stage modeling and construction scheme analysis.The key issues and relevant construction methods were summarized,which could be used as reference in the similar engineering.