- 摘 要
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（北京工業(yè)大學(xué)工程抗震與結(jié)構(gòu)診治北京市重點實驗室，北京 100124）
[摘要] 為了研究方鋼管混凝土柱-鋼梁內(nèi)隔板節(jié)點的力學(xué)性能，針對二組不同尺寸的方鋼管混凝土柱-鋼梁內(nèi)隔板連接節(jié)點進行了低周反復(fù)加載試驗，并采用有限元軟件OpenSees中由纖維截面建立的梁柱單元對試驗試件進行數(shù)值模擬。研究結(jié)果表明，采用合理的材料本構(gòu)模型進行模擬分析，計算得到的荷載-位移曲線與試驗結(jié)果吻合較好；這類節(jié)點表現(xiàn)出較好的承載力和滯回性能，具有較好的變形能力，可以實現(xiàn)工程的需要。
[關(guān)鍵字] 鋼管混凝土；節(jié)點；試驗；有限元分析
中圖分類號：TU392.3 文獻標(biāo)示碼：A 文章編號：
作者簡介：蘇丹，碩士研究生，Email：sudan2012@emails.bjut.edu.cn。
Experimental study and finite element analysis on square concrete filled steel tube column-steel beam joints
strengthened by inner diaphragms
Su Dan, Li Hongquan, Yan Weiming, Mao Shiyang
(Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit，Beijing University of Technology，Beijing 100124，China)
Abstract: To study the mechanical behavior of square concrete filled steel tube (SCFST) column- steel beam joints strengthened by inner diaphragms .numerical simulation of 2 different joints under low cyclic and reciprocal load are carried out by the use of nonlinear-beam-column element based on fiber model in finite software OpenSees in this paper. The comparison of simulated results and experimental results indicates that the load-displacement curves by finite element analysis show good agreement with those of the experiments, the joints showed good capacity and hysteretic behavior, with better deformation capacity needs of the project can be realized.
Keywords: concrete-filled rectangular steel tubular; joint ; experiment ; finite element analysis
參考文獻
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