The precise tangent stiffness matrix of space cable element is derived in this paper by using equilibrium equation.
本文采用状态平衡方程推导出用超越函数表示的空间索单元切线刚度矩阵的精确表达式。
On the basis of force density matrix of cable element, a force density matrix of triangle membrane element is introduced.
本文在已有的索单元力密度矩阵的基础上推导了三角形膜单元的力密度矩阵。
And, the spatial cable element with introducing equivalent elastic modulus was given to establish cable mechanical model.
采用空间索单元并引入等效弹性模量对拉索进行力学建模。
This static cable element stiffness matrix has a high accuracy since it comes from the analytic solution of a parabolic cable.
该静刚度矩阵来自抛物线索的解析解，具有很高的精度，明显比悬链线索单元简化了许多。
Then the calculation formulas of stressed and unstressed cable length are required by the cable element length's integral method.
最后由积分法导出了主缆索有应力和无应力长的计算公式。
The degenerated cable element is derived by the reduction of stiffness of the conventional beam element and the results are acceptable.
退化型悬索单元能在对普通梁单元进行刚度折减的基础上给出良好的分析结果。
This paper deduces a stiffness matrix of cable member, which is better suitable for analysis of prestressed reticulated shell in use than the former stiffness matrix of cable element.
推导了预应力网壳结构在正常使用阶段的预应力索单元的特性矩阵。
Ligament structure was established with 2-node cable element, the beginning and ending points of the ligament and the cross-sectional area were determined in accordance with references.
韧带采用2节点缆索单元构造，韧带的起止点及横截面积根据参考文献确定。
Ligament structure was established with 2-node cable element, the beginning and ending points of the ligament and the cross-sectional area were determined in accordance with references.
韧带采用2节点缆索单元构造，韧带的起止点及横截面积根据参考文献确定。
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