【摘要】 根据正交索网结构广义变分原理的理论成果，推导几何非线性、正交异性及预应力索网单元的基本公式．给出单元弦线刚度矩阵和等效节点荷载等普遍公式，并通过三角形单元、等参单元验证基本公式的正确性和通用性．更多还原

【Abstract】 By using the result of general variational calculus principle of orthogonal cablent,the paper derives the basic formulas of non-linear element.orthogonal singular and reinforced strees cablenet element and proposes general formulas of element matrix and equal joint load.The examples calculated by using triangular element and isoparametric element show that the formulas are correct.更多还原