Based on the method of calculating the elastic support continuous beam bridge's steady, a practical and simplified method is provided to analyze girder's stability in plane.

主要在弹性支承连续梁临界轴力求解方法的基础上。提出自锚式悬索桥主梁临界轴力的实用简化计算方法。

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The author without any new system reference, through practical exercises solves the problem of simplification and offers the simplified system inventory and related data.

作者在尚无新系统资料的情况下，通过实际摸索解决了这一简化问题，并给出了简化后的系统清单和有关数据。

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According to the desired accuracy, we determine the number of terms in the Fourier series and Legendre polynomials, then the Practical simplified formulae are obtained.

根据计算精度要求，确定福里哀级数和勒让德多项式的项数，从而得到实用简化公式。

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