摘要
圆形双层正交悬索体系是一种新型结构形式;本文通过模型试验和理论分析对这种悬索体系的静力性能进行了较全面的研究,并对其模型的头几阶自振特性进行了测定;运用连续化理论和迦辽金变分原理,导出了这种体系在不对称荷载作用下的实用计算公式,并取得了试验的验证;此外,还运用能量原理推导了所探讨体系的圆形边缘构件临界力的简化计算公式,供实际设计使用。
A comprehensive study on static and dynamic behaviour of a new type suspended roof structure,the prestressed orthogonal double- layer cable system with circular plan was performed on a large- scale(1: 10) model as well as by computer analysis using a program in comsideration of the geometricnon- linearity of the structure. The simplified formulars for determining deflection and cable forces of the system were derived for practical designs based upon the continuous theory of cable system andusing Galerkin's method of variations. An approximate formular for determining critical load of thecircular boundary ring was also presented.
出处
《土木工程学报》
EI
CSCD
北大核心
1989年第1期53-65,共13页
China Civil Engineering Journal
关键词
悬索结构
正交结构
双层结构
Models
Testing
Structural Analysis
Computer Aided Analysis
Structural Design
Prestressing
