摘要
节点刚度对大跨度空间网格结构的稳定极限承载力性能具有重要的影响。以具有端部弹簧的非线性梁柱单元作为空间网格结构的分析模型,采用ANSYS软件对单层球面网壳进行非线性稳定全过程分析,研究节点刚度对网壳稳定性能的影响,为考虑节点刚度的大跨度空间网格结构稳定极限承载力分析提供依据,得出了可应用于工程实践的重要结论。
Joint stiffness has important influence on the ultimate bearing capacity of long-span spatial reticulated shell.The non-linear beam-column element with end springs was taken as the analytical model of spatial reticulated shell in this paper.The whole-process analysis of non-linear stability for single-layer reticulated shell was analyzed by ANSYS,so as to investigate the influence of joint stiffness on the stability of single-layer reticulated shell.Some important conclusions were obtained and can be applied to practical design.In addition,it can provide theoretical foundation for the ultimate bearing capacity analysis of long-span spatial reticulated shell considering joint stiffness.
出处
《钢结构》
北大核心
2015年第8期43-45,共3页
Steel Construction
基金
宁波市自然科学基金项目(2013A610198)
关键词
节点刚度
端部弹簧
非线性梁柱单元
稳定极限承载力
joint stiffness
end springs
non-linear beam-column element
ultimate bearing capacity
