- 摘 要
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（1 昆明理工大學(xué)工程抗震研究所， 昆明 650500； 2 四川大學(xué)錦城學(xué)院土木工程系， 成都 611731）
［摘要］為了更好地了解既有冷彎薄壁C型鋼桁架梁柱節(jié)點的受力性能，促進建筑工程裝配式輕鋼結(jié)構(gòu)活動板房在云南省的推廣和裝配式輕鋼結(jié)構(gòu)活動板房地方性技術(shù)規(guī)范的編制，對4種足尺桁架梁柱節(jié)點進行了低周往復(fù)荷載下的擬靜力試驗。研究不同連接形式下節(jié)點的抗震性能，分析了節(jié)點的滯回特性、承載能力、剛度退化、延性和耗能能力。研究表明，角鋼或節(jié)點板與柱采用四面圍焊方式的節(jié)點的承載能力、延性及耗能能力較采用兩側(cè)焊接方式的節(jié)點有提高，而采用角鋼連接形式的節(jié)點的耗能能力優(yōu)于采用節(jié)點板連接形式的節(jié)點。
［關(guān)鍵詞］冷彎薄壁C型鋼； 桁架梁柱節(jié)點； 擬靜力試驗； 抗震性能
中圖分類號：TU392-5文獻標(biāo)識碼：A文章編號：1002-848X(2018)06-0046-05
Experimental study on seismic performance of cold-formed thin-walled C-shaped steel truss beam-column joints
Dai Mingming1, Tao Zhong1, Qian Li1,2, Wang Hongjiao1, Jin Si1, Ye Xin1, Zhang Dan1
(1 Earthquake Engineering Institute，Kunming University of Science and Technology， Kunming 650500， China; 2 Department of Civil Engineering，Sichuan University Jincheng College, Chengdu 611731, China)
Abstract:Quasi-static tests were carried out on four kinds of full-scale truss beam-column joints under low cyclic loading, in order to study the mechanical characteristics of existing cold-formed thin-walled C-shaped steel truss beam\|column joints, and in order to promote popularize of the architectural engineering prefabricated light steel activities of the board in Yunnan provincial engineering and the establishment of its specifications. The seismic behavior of joints under different connection forms was studied, and the hysteretic characteristics, bearing capacity, stiffness degradation, ductility and energy dissipation capacity of the joints were analyzed. Research shows that the joint with corner steel or joint board to connect with column using welding four sides has better bearing capacity, ductility and energy dissipation capacity comparing to joints using welding in two sides. Also, joints using angle steel connections has better energy dissipation capacity comparing to joints using joint board for connection.
Keywords:cold-formed thin-walled C-shaped steel; truss beam-column joint; quasi-static test; seismic performance
*云南省科技術(shù)廳技術(shù)咨詢項目：建筑工程裝配式輕鋼結(jié)構(gòu)活動板房技術(shù)規(guī)范編制（KKX0201506019）。
作者簡介：戴明明，碩士，Email：1298474150@qq.com。
