摘要
本文将桅杆结构作为空间铰接索桁结构,采用空间桁架大位移的对称增量刚度矩阵和纤绳的非线性平衡方程导出了桅杆稳定问题的空间索桁有限元分析方法。进行了六根桅杆稳定性能的足尺试验研究。理论计算结果与试验结果吻合很好。通过理论与试验研究,分析了桅杆的稳定性能以及影响桅杆稳定的因素。
In this paper the space guy-truss structure is taken as the analytical model of guyed towers, and the finite guy & truss element method is derived to analyze the stability of guyed towers according to the incremental symmetrical stiffness matrix of space trusses and the nonlinear equation of the guys. Experiments on the stability of six guyed-tower specimen are carefully conducted. The results of the theory of this paper and the experiments agree satisfactorily. Based on the theoretical and experimental studies, the stability and some influential factors on the stability of guyed towers are analyzed.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
1993年第2期155-162,共8页
Journal of Tongji University:Natural Science
基金
国家自然科学基金
教委博士点专项基金
关键词
桅杆
整体稳定
非线性
试验
Guyed tower
Stability
Nonlinear analysis
Experimental study
