《Table 1 Minimum e ffe ctive thickne ss of partial pe ne tration butt we lds spe cifie d in AISC 360

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《中美建筑钢结构设计方法比较——焊缝连接》

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The bearing capacity of butt w elds is mainly related to parameters such as groove form，calculation length lwof the w eld，and the effective thickness heof the w eld.AISC 360 and GB 50017 stipulate that the effective thickness of full penetration butt w elds should be the thickness t1of the thinner plate of the tw o connecting plates，and the effective thickness heof partial penetration butt w elds is related to the groove form.GB 50017 specifies that heis generally set as the groove depth s，and for V-grooves w ith an angle of about 45°，he=s-3 mm.M oreover，AISC 360 limits the minimum effective thickness for partial penetration butt w elds（Table 1）.