冷彎薄壁型鋼與混凝土組合節(jié)點抗震性能試驗研究
李 風(fēng)
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李 風(fēng) (西安建筑科技大學(xué) 710055)
[提要] 結(jié)合某試點工程的要求,進行了冷彎薄壁型鋼與混凝土組合節(jié)點在低周循環(huán)荷載下的足尺模型擬靜力試驗研究。在較詳細(xì)闡述試驗過程的基礎(chǔ)上,結(jié)合試驗現(xiàn)象闡明兩種不同構(gòu)造節(jié)點的循環(huán)塑性屈曲破壞、循環(huán)塑性累積破壞模式,并提出改進建議。
[關(guān)鍵詞] 冷彎薄壁型鋼 混凝土 組合節(jié)點 低周循環(huán)荷載 破壞模式Experiment under low-cycle-loading is presented on the composite joint of cold-formed&light-guage steel shape and concrete. According to detailed representation on the procedure of the experiment, two types of joint failure mode are presented, that is, cyclic plastic buckling failure and cyclic plastic cumulative failure.
Keywords: composite joint; cold-formed&light-guage shape steel; concrete; failure mode