The main form and cause of fatigue failure of steel crane beam are analyzed first, and focused the welded steel crane beam.
变截面焊接钢吊车梁疲劳裂缝主要是由于变截面处有很大的应力集中所产生的。
The studies in this paper provide a practical way to design a continuous steel crane beam. It has some theoretical and practical values.
本文的研究为连续钢吊车梁的设计提供了切实可行的方法，具有一定的理论意义和工程实用价值。
This program can complete the designing and checking of a two-span continuous steel crane beam, and it can also draw of internal force envelopes and output the calculation files.
此程序可完成两等跨连续钢吊车梁的设计校核工作，并具有自动绘制内力包络图、输出计算书功能。
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