【摘要】 对深圳市坪山体育馆的结构选型,受力特点及结构设计进行介绍。针对上述问题进行计算分析,包括:弦支穹顶体系整体受力性能和屈曲稳定性影响分析;荷载取值分析;施工全过程模拟计算分析;单体上部钢结构、单体下部混凝土结构初步分析基础上的整体结构总装分析;根据深圳本地气温统计资料,合理选取计算温差,分析温差效应对结构安全的影响;关键复杂节点实体有限元计算分析,确保其可靠安全。计算分析表明:1)弦支体系不仅有效地提高了屋盖结构刚度,还大大提高了单层网壳结构稳定性;2)大跨空间结构设计进行总装分析至关重要;3)大跨结构温差收缩效应影响存在,温差效应施工模拟计算十分必要;4)复杂空间结构的节点十分关键,应通过有限元分析,精心设计。更多还原

【Abstract】 The structure features,behaviors & design optimization of shenzhen pingshan gymnasium are introduced in this paper,which includes the whole suspend-dome behavior & overall stability(buckling) analysis,the construction simulation analysis,the isolated & assembled modeling analysis for the base RC structure & the roof steel structure,the temperature effects analysis,the finite element analysis of key joints.The calculation analysis indicated that 1)the suspend-dome system could effectively stiffen the roof structure,also benefit the overall stability of a singe-layer reticulated dome greatly;2)the assembled modeling analysis would be essential for long-span space structure;3)the temperature variation & shrinkage effects on ultra-long RC structure should be noticed,the related construction simulated calculation should be necessary;4) the key joint of space structure should be designed precisely by finite element analysis.更多还原