1、

The cold-formed of thin-wall channel steel columns which have large width to thickness ratio, trend to local buckling under the compression state, reducing the overall stability of components.

冷弯薄壁槽钢柱的板件宽厚比较大,在受压状态下容易发生局部屈曲而降低构件的整体稳定性。

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2、

The main measures are as follows: the overall diameter is reduced from 808 mm to 798 mm and the cross section width is reduced from 198 mm to 195 mm;

采取的主要措施是:减小轮胎外缘尺寸,外直径由808mm减至798mm,断面宽由198mm减至195mm;

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