大跨鋼桁架與鋼柱銷軸連接節(jié)點試驗研究
馬建偉1,2，陳志華1
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（1 天津大學建筑工程學院， 天津 300072； 2 中國航天建設(shè)集團有限公司， 北京 100071）
［摘要］銷軸節(jié)點由于外形美觀、施工方便、構(gòu)造簡單等特點，已廣泛地應(yīng)用于建筑結(jié)構(gòu)構(gòu)件連接中，但在鋼桁架與鋼柱連接中并不多見，而且在我國規(guī)范中還沒有相關(guān)規(guī)定。參考歐洲規(guī)范對銷軸節(jié)點進行設(shè)計，并對銷軸節(jié)點進行了靜力荷載和循環(huán)荷載作用下的足尺和縮尺試件的試驗研究。同時采用有限元軟件ABAQUS進行分析校核，得到了極限承載力、荷載位移曲線和滯回曲線。試驗結(jié)果表明，銷軸節(jié)點具有較好的延性和抗震性能，驗證了歐洲規(guī)范計算方法的可靠性和適用性。最后，提出了銷軸計算公式改進建議和相關(guān)節(jié)點構(gòu)造措施。［關(guān)鍵詞］銷軸節(jié)點; 歐洲規(guī)范; 有限元; ABAQUS; 試驗研究中圖分類號：TU391 文獻標識碼：A 文章編號：1002-848X(2016)12-0073-07
Experimental study on pin-connected support joints between large-span steel truss and steel columnMa Jianwei1,2, Chen Zhihua1(1 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 China Aerospace Construction Group Co., Ltd., Beijing 100071, China)Abstract: Because of properties of beautiful appearance, convenient construction and simple structure, pin-connected joints have been widely used in building structure connections. However, adoption in the joints between steel truss and steel column is scarce, and there is no related specification in codes of China. European code was referred to design pin-connected joints. And experimental studies on full scale and reduced scale pin-connected joint specimens were carried out under static load and cyclic load actions. At the same time, finite element software ABAQUS was used to analyze and check the tests to obtain the hysteresis curves of ultimate bearing capacity, load-displacement curves and hysteresis curves. The experimental results show that the pin-connected joint has well ductility and seismic performance, and the reliability and applicability of the calculation methods in European code were verified. In the end, it put forward the improving suggestions on the calculation formula of the pin-connected joint and the related joint construction measures.Keywords: pin-connected joint; European code; FEM; ABAQUS software; experimental study
作者簡介：馬建偉，博士，研究員，一級注冊結(jié)構(gòu)工程師，Email：mjw2010@163.com。
