軸心受壓方鋼管混凝土短柱的性能研究:Ⅰ試驗
呂西林 余勇 陳以一 Tanak Kiyoshi Sasaki Satoshi
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呂西林 余勇 陳以一 (同濟大學土木工程學院 上海 200092)Tanak Kiyoshi Sasaki Satoshi (日本藤田技術研究所)
[提要] 介紹了包括方鋼管混凝土短柱、方鋼管短柱以及素混凝土短柱在內共14個試件的軸心受壓試驗結果,研究了方鋼管混凝土短柱的破壞機理、延性和極限承載力,討論了影響方鋼管混凝土軸壓短柱性能的主要因素,包括鋼管的寬厚比、混凝土的強度等級等。
[關鍵詞] 方鋼管混凝土 承載力 延性 試驗研究Experimental results of 14 speciments including concrete-filled rectangular tubular (CFRT) short columns, steel tubular short columns and plain concrete short columns are presented. Based on the test results, the failure mechanism, ductility and ultimate capacity of CFRT short columns are investigated. The effects of the main factors such as D/t ratio and concrete strength on the behavior of concrete-filled square steel tubular short columns are discussed as well.
Keywords: concrete-filled rectangular steel tube; capacity; ductility