... 初应力 initial stress 切线刚度矩阵 tangent stiffness matrix 割线刚度矩阵 secant stiffness matrix ...
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列式法求解切线刚度矩阵来考虑几何非线性。
For geometrical nonlinearity, Updated Lagrangian formulations are adopted to derive the tangent stiffness matrix.
讨论了桥梁结构分析中常用单元切线刚度矩阵的具体表达形式。
The concrete expression of the unit tangent line stiffness matrix is given.
推演了索单元的切线刚度矩阵，建立了斜拉桥施工控制计算的几何非线性模型。
The paper deduces tangent stiffness matrix and set up geometrical nonlinear model of construction control calculation of the cable-stayed bridge.
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