It is an effective method to carry out regularly inspection on steel crane girder structures in order to prevent from fatigue failure.

对在役钢结构吊车梁进行定期、不定期的检查是避免发生疲劳失效的最有效方法。

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Finally, it presents some advice and Suggestions for the repairing and strengthening method of fatigue crack of upper part of steel crane-girder in the high-frequency.

最后就重级工作制钢吊车梁上部区域出现疲劳裂缝的修复与加固方案提出了一些意见和建议。

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Finally, it presents some advice and Suggestions for the repairing and strengthening method of fatigue crack of upper part of steel crane-girder in the high-frequency.

最后就重级工作制钢吊车梁上部区域出现疲劳裂缝的修复与加固方案提出了一些意见和建议。

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