It was very complicated when taking the traditional equivalent section method to calculate the section stress of steel concrete structural unit under its normal working condition.
对于钢筋混凝土构件在正常使用状态下的截面应力计算，用传统的“等效截面法”计算十分复杂。
The finite element internal force method for calculating arch dam equivalent stress is improved.
本文对有限元内力法求解拱坝等效应力分析方法进行了进一步改进。
The accumulated fatigue damage was calculated in frequency domain by equivalent stress method and equivalent narrow band method respectively.
在频域内分别用等效应力法和等效窄带法计算了累积损伤。
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