按照“对号入座”法则导出了空间几何非线性薄壁梁单元特性矩阵。
Accordil1g to the rule "Taking Seat by Order", the specific property matrix of the space geometrical nonlinear element of thin-walled girders is deduced.
本文是针对大跨径板桁结合斜拉桥的空间几何非线性静力分析及结构的动力分析两个方面而展开研究工作的。
This paper is concentrated on the space geometric non-linear static analysis and vibration analysis of the long span plate-truss composite cable-stayed bridges.
结合悬链线理论和几何非线性有限元方法，对空间缆索自锚式悬索桥成桥状态的确定方法进行了研究。
The catenary theory and geometrical nonlinear finite element method were adopted in determining the dead-load state of self-anchored suspension bridge with spatial cables.
本文采用混合分析法进行空间组合结构施工阶段的几何非线性稳定计算。
The paper applies the mixed analysis to calculate the geometric nonlinear stability of space composite structures at construction stage.
对一类非线性问题的空间分解算法证明了两个几何收敛性定理，改进了已有的结果。
Two geometrical convergence theorems of a space decomposition method for solving a kind of nonlinear problems have been proved, which are improvements of existing results.
利用几何非线性有限元方法研究了空间网壳结构的稳定性。
The stability of spatial latticed structures is studied by use of nonlinear geometric finite element method.
从结构的几何非线性分析着手，研究截面为三角形的空间格构式斜腿刚架的平面内整体稳定。
Based on the geometric non-linear analysis, the in-plane global stability of Space Lattice Tilted Column Frame of Triangle Section(SLTCF)is studied.
算例表明：采用本文理论可以极为有效地分析各类空间桁架几何非线性问题。
Numerical examples show that the incremental finite element method presented in this paper can analyse the geometrically nonlinear problems of space trusses satisfactorily and effectively.
引入偏心空间薄壁梁单元及空间组合索单元，导出弹性刚度阵、几何刚度阵、质量阵。拉索张力随垂度变化的非线性由等效几何刚度计入。
Having introduced the eccentric space thin-walled girder and the space combined cable elements, the author has derived element elastic stiffness matrix, geometric stiffness and masse matrix.
引入偏心空间薄壁梁单元及空间组合索单元，导出弹性刚度阵、几何刚度阵、质量阵。拉索张力随垂度变化的非线性由等效几何刚度计入。
Having introduced the eccentric space thin-walled girder and the space combined cable elements, the author has derived element elastic stiffness matrix, geometric stiffness and masse matrix.
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