圆柱面巨型网格结构动力特性及抗震分析  

DYNAMIC CHARACTER AND SEISMIC ANALYSIS OF HUGE CYLINDRICAL RETICULATED STRUCTURE

作　　者：杜文风[1] 鲍科峰[1] 夏锋林[1] 高博青[1] 

机构地区：[1]浙江大学,杭州310027

出　　处：《钢结构》2004年第1期18-20,26,共4页Steel Construction

摘　　要：综述了巨型网格结构的特点及研究状况 ,在此基础上 ,应用有限元理论和子空间迭代法求得圆柱面巨型网格结构的自振频率和振型 ,并讨论了矢跨比、结构约束、长跨比、荷载大小、网格大小等参数对巨型网格结构基频的影响 ,应用振型分解反应谱法进行了抗震计算 ,并与时程分析法的计算结果进行了比较 ,二者基本一致。得出了一些有益结论 。This paper summarizes huge cylindrical reticulated structure′s character and development situation Then,the structure′s natural frequency of vibration and mode are provided by FEM theory and method of sub-space deduction. Moreover,the influences of ratio of the rise-span,structural constraints, load,lattice size and long-span ratio are discussed Seismic analysis is computed by response spectrum method,pretty much the same thing with time-history result Some useful conclusions provided by this article are...

关 键 词：巨型网格结构 动力特性 参数分析 

分 类 号：TU398[建筑科学—结构工程]