陈以一  陈  城  沈祖炎  郑沁宇
    （同济大学建筑工程系  上海 200092）

[提要]  通过单面焊接H形截面短柱极限承载力试验和相应的有限元计算与分析，表明在静力荷载条件下，较薄腹板构件的极限承载力对单面角焊缝接头并不敏感；但在腹板较厚的构件中，角焊缝的相对熔深对其极限承载力有一定的影响。
[关键词]  轻型钢结构  单面角焊缝  熔深  极限承载力  约束条件  屈曲后强度  有限元分析

The test of the ultimate strength of the axially-compressed H-shaped steel stubs with one-side fillet weld and the relevant FEM analysis are reported. The results show that the loading capacity of the stubs with thin webs is not sensitive to one-side fillet weld, but for those with thick webs, the ratio of the deepness of the weld root to the thickness of the web has some influence on the ultimate strength.
Keywords: light-weight steel structures; one-side fillet weld; weld  deepness; ultimate load; FEM analysis