- 摘 要
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陳以一 沈祖炎 鄭沁宇 劉 鵬
（同濟大學建筑工程系鋼結(jié)構(gòu)研究室 上海 200092）[提要] 在輕型鋼結(jié)構(gòu)建筑中采用的以單面角焊縫連接翼緣和腹板的組合H形截面鋼構(gòu)件，其焊縫接頭性能尚未得到充分的試驗驗證。為此進行了兩個基礎(chǔ)性系列試驗：對單面角焊縫接頭的57個試件通過金相分析測定熔深，對26個試件進行焊縫抗剪試驗。試驗結(jié)果表明，在單調(diào)靜力荷載條件下，單面連接角焊縫有良好的承載和變形性能，可以按照鋼結(jié)構(gòu)設(shè)計規(guī)范有關(guān)規(guī)定計算其沒計承載力。
[關(guān)鍵詞] 輕型鋼結(jié)構(gòu) 單面角焊縫熔深抗剪承載力Thc propcrtics of the joints with onc-side fillct wcld connccting the wcbs to flangcs in H-shapcd stccl mcmbcrs uscd in light-wcight stccl structurcs, have not bccn yct thoroughly rcscarchcd by tcsts. Two basic cxpcrimcnts arc rcportcd. The dccpncss of the wcld root was mcasurcd by mctallographic cxamination on 57 picccs of samplcs, and the othcr 26 spccimcns whcre the wclds wcre subjcctcd to shcar forccs arc loadcd. The rcsults show that the joints with onc-side fillct wcld have sufficicnt Ioading capacity and dcformablility to shcar force undcr monotonic loading conditions, and the rcsistance of the wcld can be calculatcd by the provisions of the prcscnt dcsign spccification of the stccl structurcs.
Keywords: light-wcight stccl structurc; onc-side fillct wcld; dccpncss; wcld root
