摘要
继鼓蜂窝序列索穹顶创新研究后,进一步探讨了鼓蜂窝四撑杆型索穹顶的三种结构构形及一般性的预应力态分析方法.分析讨论表明:鼓蜂窝四撑杆型索穹顶是一类构形最丰富的索穹顶,在轴对称荷载作用下,均可归属为一次超静定结构,通过建立节点平衡方程组,可简捷求得预应力态的精确解.对开、闭口鼓蜂窝四撑杆Ⅲ型索穹顶,文中分别详细推演了预应力态的全过程分析,并对多个参数作了预应力态分布规律和特点的阐释.本文研究为索穹顶结构的选型、设计提供了新思路、新方案.
Following the innovative research on the series of drum-shaped honeycomb-type cable domes,three structural forms and a general pre-stress state analysis method for the drum-shaped honeycomb-type cable dome with quad-strut layout are further discussed in this paper.The analysis and discussion show that,the drum-shaped honeycomb-type cable dome with quad-strut layout is the most abundantly configured cable dome,and can all be classified as a primary statically indeterminate structure under axisymmetric loading.By establishing nodal equilibrium equations,an exact solution of the initial prestress can be simply found.The full process analysis of the initial prestress is deduced in detail for the drum-shaped honeycomb-type cable dome with quad-strut layout typeⅢwith or without central opening,and the distribution law and characteristics of the initial prestress of several parameters are explained.Results from study can provide new ideas and solutions or the form selection and design of cable dome structures.
作者
董石麟
吕辉
陈照全
张浩
王艺达
DONG Shi-lin;LV Hui;CHEN Zhao-quan;ZHANG Hao;WANG Yi-da(Space Structures Research Center,Zhejiang University,Hangzhou 310058,China;Zhejiang Provincial Key Laboratory of Space Structures,Zhejiang University,Hangzhou 310058,China;School of Civil Engineering and Anhitecture,Nanchang Aviation University,Nanchang 330063,China)
出处
《空间结构》
CSCD
北大核心
2022年第4期3-15,共13页
Spatial Structures
基金
国家自然科学基金项目(51978605)
关键词
鼓蜂窝序列索穹顶
四撑杆型索穹顶
结构构形
预应力态分析
节点平衡方程
精确解
drum-shaped honeycomb-type cable domes
cable dome with quad-strut layout
structural form
initial prestress analysis
nodal equilibrium equations
exact solution
