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    陳以一  陳  城  沈祖炎  鄭沁宇
    （同濟(jì)大學(xué)建筑工程系  上海 200092）

[提要]  通過(guò)單面焊接H形截面短柱極限承載力試驗(yàn)和相應(yīng)的有限元計(jì)算與分析，表明在靜力荷載條件下，較薄腹板構(gòu)件的極限承載力對(duì)單面角焊縫接頭并不敏感；但在腹板較厚的構(gòu)件中，角焊縫的相對(duì)熔深對(duì)其極限承載力有一定的影響。
[關(guān)鍵詞]  輕型鋼結(jié)構(gòu)  單面角焊縫  熔深  極限承載力  約束條件  屈曲后強(qiáng)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