索张拉预应力钢桁架
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Cable tension prestressed steel truss
以上为机器翻译结果，长、整句建议使用 人工翻译 。
基于几何非线性有限元理论，推导了折线形索单元的刚度矩阵，建立了索张拉预应力钢桁架的几何非线性数值分析模型。
Based upon the theories of geometrical nonlinearity, the stiffness matrix of cable elements are put forward and the numerical model of cable-prestressed steel structures are established.
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