- 摘 要
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李兆凡 石永久 陳 宏 王元清
（清華大學(xué)土木工程系 北京 100084）[提要] 對4種不同構(gòu)造形式的鋼框架梁柱節(jié)點進(jìn)行了非線性有限元分析，研究了節(jié)點局部構(gòu)造對應(yīng)力分布、塑性區(qū)分布及極限承載力的影響，分析了焊接孔末端的應(yīng)力分布狀況。文中對不同節(jié)點的力學(xué)性能進(jìn)行了分析比較，計算結(jié)果與試驗結(jié)果吻合較好。
[關(guān)鍵詞] 鋼結(jié)構(gòu) 梁柱節(jié)點 有限元 非線性分析This paper focuses on non-linear FEA analysis of four types of web-bolted and flange-welded( WBFW)beam-column connections tested. The stress distribution of the connections under cyclic loading is investigated. Connection strength and stress concentration at the end of the weld access hole are analyzed and compared between the connections. Comparison between FEA results and experimental data shows that nonlinear FEA method is satisfactory in simulating the behavior of WBFW connections under low-cyclic loading. And a new type of connection detail is recommended.
Keywords: steel structure; beam-column connection; finite element; non-linear analysis
