With this method the remaining fatigue life and safety of old riveted truss bridge were calculated with Waibaidu bridge as an example.
以外白渡桥为例，详细介绍了一套综合传统疲劳分析和断裂力学的混合方法，并用以计算老钢桁梁桥剩余寿命。
The truss structure that needs to be riveted, if the height of the ground running from the ground can not meet the riveting operation, it can be used as a horizontal reference.
需要进行铆接的桁架结构，如果大车运行轨道地面离地面的高度不能满足铆接作业时，可以另搭一个一定高度的架子作为水平基准。
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