- 摘 要
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(1 湖南大學(xué)土木工程學(xué)院鋼結(jié)構(gòu)研究所， 長沙 410082； 2 湖南城市學(xué)院土木工程學(xué)院， 益陽 413000)
［摘要］提出了一種方鋼管混凝土柱與外包U形鋼混凝土組合梁的梁柱邊節(jié)點連接形式，即新型榫卯鋼結(jié)構(gòu)梁柱邊節(jié)點。為研究該節(jié)點的承載能力以及破壞模式，開展了2個邊節(jié)點的單調(diào)靜力承載試驗。試驗使用幾何可變框架進行柱端加載，并利用ABAQUS有限元軟件對試件進行分析。結(jié)果表明：各個試件的破壞主要集中于貫穿槽鋼與鋼管柱的焊縫，該類組合節(jié)點具有較高的承載能力和延性；有限元理論分析與試驗結(jié)果吻合良好，驗證了理論分析的正確性。
［關(guān)鍵詞］榫卯鋼結(jié)構(gòu)； 邊節(jié)點； 單調(diào)靜力承載試驗； 承載能力； 延性
中圖分類號：TU398-9文獻標(biāo)識碼：A文章編號：1002-848X(2021)01-0050-07
Bearing capacity test and finite element analysis of beam-column edge joints of new tenon-mortise steel structure
TAN Jie1, SHU Xingping1, ZHANG Zaihua2
（1 Steel Structural Institute of Civil Engineering College， Hunan University， Changsha 410082， China；2 College of Civil Engineering， Hunan City University， Yiyang 413000， China）
Abstract:A new type of beam-column edge joint between concrete-filled square steel column and composite concrete-filled U-shaped steel beam was proposed, which was called beam-column edge joint of new tenon-mortise steel structure. In order to study the bearing capacity and failure mode of the joints, bearing capacity test with monotonic static of two edge joints were carried out. In the experiment, the geometrically variable frame was used to carry out the test loading at the top of the column, and ABAQUS finite element software was used to analyze the specimen. The results show that the failure of the specimens is mainly concentrated in the welds between the channel steel and the steel pipe column, and the composite joints have high bearing capacity and ductility. The results of finite element analysis are in good agreement with the experimental results, which verify the correctness of the theoretical analysis.
Keywords:tenon-mortise steel structure; edge joint; bearing capacity test with monotonic static; bearing capacity; ductility
*國家自然科學(xué)基金項目（51778219）。
作者簡介：譚杰，碩士研究生，Email：jietan@hnu.edu.cn。
