英语词典
This paper establishes the fatigue stress spectrum of the transom and the bottom chord of a bridge over the Yellow River based on the measured stress and confirms the residual fatigue life by using mathematical model of existed steel bridge fatigue life.
以黄河某大桥的实测应力为基准,建立其横梁、下弦杆的疲劳应力谱,并运用既有钢桥疲劳寿命的数学模型确定其剩余疲劳寿命。
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The bottom chord of the truss is used by pre-stress steel bar.
主楼和裙房间采用大跨鱼腹桁架,桁架下弦采用高强度预应力钢棒。
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