斜拉网架的静力分析  

The Static Analysis of Cable Stayed Space Grid

作　　者：唐曹明[1] 严慧[2] 董石麟[2] 

机构地区：[1]中国建筑科学研究院工程抗震研究所 [2]浙江大学

出　　处：《建筑科学》1997年第4期17-21,共5页Building Science

摘　　要：斜拉网架是一种由塔柱、网架与拉索构成的空间组合结构。本文对这类结构进行了详细的理论分析，并根据有限元法编制了相应的电算分析程序。文中对于塔柱与网架分别采用了空间梁单元与空间杆单元分析；而对于拉索则按等代刚度法将其等代为受拉的二力杆件，同时考虑了拉索大位移的非线性影响。通过具体的算例，对索的非线性影响情况进行了讨论与分析，同时也提出了一些可供工程设计参考的结论性意见。The cable stayed space grid is a kind of space assembly structure,which combines towers,space trusses with inclined cables.In this paper,the detailed theoretical analyses are given,and the computer program is also presented based on the finite element method.The analyses for towers and space tursses make use of space beam elements and space rod elements separately,and the cables are simplified as equivalent tension rods.The nonlinear effects caused by the large structural displacements of tension cables were considered,and their discussion and analyses were carried out in the analysis of practical example.Some useful opinions on engineering design are recommended for reference.

关 键 词：斜拉网架 静力 非线性 网架结构 结构力学 

分 类 号：TU356.01[建筑科学—结构工程]