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（長安大學(xué)建筑工程學(xué)院, 西安 710061）
［摘要］提出了一種新型裝配式方鋼管混凝土柱-H型梁空間連接節(jié)點，設(shè)計了2個系列的節(jié)點試件，利用有限元軟件ABAQUS對低周反復(fù)荷載作用下的試件進(jìn)行模擬分析并與試驗結(jié)果對比，結(jié)果表明有限元分析得到的節(jié)點破壞形態(tài)、滯回曲線與試驗結(jié)果吻合較好。在此基礎(chǔ)上，選取新型中層空間連接節(jié)點來研究此類新型空間節(jié)點的滯回性能，研究結(jié)果表明：平面節(jié)點與空間節(jié)點的破壞模式一致，均為梁端塑性鉸破壞；角柱節(jié)點的滯回性能弱于平面節(jié)點，邊柱與中柱節(jié)點的滯回性能與平面節(jié)點相似。
［關(guān)鍵詞］鋼管混凝土； 新型裝配式節(jié)點； 空間節(jié)點； 有限元分析； 滯回性能
中圖分類號：TU398文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2019)11-0067-10
Hysteretic behavior analysis of spatial joints of new type assembled square concrete filled steel tubular column and H-typed beam
Zheng Hong, Jiang Lu, Liu Zhichao, Chen Peng
（School of Civil Engineering， Chang′an University, Xi′an 710061， China）
Abstract:A new type of spatial joint with assembled concrete filled square steel tubular column and H-typed beam was proposed. Two series of joint specimens were designed. The finite element software ABAQUS was used to simulate and analyze the specimens under low cyclic repeated loading, and results were compared with experimental results. The results show that the failure modes and hysteretic curves of the joint obtained by finite element analysis are in good agreement with the experimental results. On this basis, a new type of mid-story spatial joint was selected to study the hysteretic behavior of this new type of spatial joints. The results show that the failure mode of plane joints is the same as that of spatial joints, and all of them are plastic hinge failure at beam ends. The hysteretic behavior of corner-column joints is weaker than that of plane joints, and the hysteretic behavior of side-column and mid-column joints is similar to that of plane joints.
Keywords:concrete filled steel tube; new type of assembled joint; spatial joint; finite element analysis; hysteretic behavior
作者簡介：鄭宏，博士，教授，博士生導(dǎo)師，Email：cehzheng@chd.edu.cn。
