陈以一  韩  琳  沈祖炎  郑沁宇
    （同济大学土木工程学院  上海 200092）

[提要]  报告了12个试件的抗剪极限承载力试验。试验结果表明，在单调静力荷载条件下，单面连接角焊缝有良好的承载和变形性能，对H形截面钢构件腹板剪切失稳后的极限承载力的不利影响很小，可以按照钢结构设计规范有关规定计算腹板抗剪极限承载力。
[关键词]  单面角焊缝  薄腹构件  屈曲  屈曲后强度  抗剪  极限承载力  试验研究

Experimental researches on ultimate resistance against shear loads acting on 12 specimens are reported. The results show that the web-to-flange joints with one-side fillet weld have sufficient loading capacity and deformability under monotonic loading conditions. No obvious effect weakening the post-buckling shear strength of the H-shaped steel members due to one-side fillet weld was observed during the tests. The shear strength of webs can be calculated by using the provisions of the present design specification of the steel structures.
Keywords: one-side fillet weld; thin-welo member;  buckling; post-buckling; capacity; ultimate resistance shear; experimental research; light-weight steel elements