門式剛架邊柱端板橫放節(jié)點(diǎn)滯回性能試驗(yàn)研究*
石運(yùn)東，陳以一
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石運(yùn)東，陳以一（同濟(jì)大學(xué)土木工程防災(zāi)國家重點(diǎn)實(shí)驗(yàn)室，上海 200092）［摘要］對(duì)6個(gè)門式剛架邊柱節(jié)點(diǎn)試件進(jìn)行了反復(fù)荷載試驗(yàn)。試驗(yàn)中試件出現(xiàn)3種破壞變形模式。以子構(gòu)件為基礎(chǔ)分析了試件的變形能力、延性及耗能能力。試驗(yàn)結(jié)果表明，節(jié)點(diǎn)域屈曲過程中形成的拉力場保證了節(jié)點(diǎn)域局部屈曲破壞的抗震能力。如側(cè)重于門式剛架抵抗罕遇地震作用，則剪切屈曲模式優(yōu)于構(gòu)件的局部屈曲破壞模式，節(jié)點(diǎn)域剪切屈曲過程中的耗能能力可以加以利用。文中所采用的承載力計(jì)算方法可以有效地預(yù)測(cè)構(gòu)件和節(jié)點(diǎn)局部屈曲的承載力和對(duì)應(yīng)的破壞模式。［關(guān)鍵詞］門式剛架； 節(jié)點(diǎn)； 局部屈曲； 滯回性能； 試驗(yàn)研究中圖分類號(hào)：TU328文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002848X(2012)11011405Experimental study on hysteretic behavior of connection of beam to side column in steel gabled framesShi Yundong, Chen Yiyi(State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China)Abstract: Six specimens were tested under cyclic loading to study the hysteretic behavior of the connection of beam to side column in steel gabled frames. Three different failure modes were observed from the test. The deformation capacity, ductility and energy dissipation capacity were analyzed. The test results show that the tension field formed in the process of local buckling in panel zone ensures the earthquake resistance of panel zone after local buckling. The shear buckling is a favorable failure mode compared with the local buckling of slender members under rare earthquake. The energy dissipation in the process of shear buckling of the panel zone can be used. The calculation method adopted is able to predict the local buckling capacity of members and panel zone, and the corresponding failure modes.Keywords: steel gabled frame; connection; local buckling; hysteretic behavior; experimental study*科技部國家重點(diǎn)實(shí)驗(yàn)室基礎(chǔ)研究資助項(xiàng)目(SLDRCE08-A-04)，國家自然科學(xué)基金項(xiàng)目資助項(xiàng)目(51038008)。作者簡介：石運(yùn)東，博士研究生，Email：shiyundong@gmail.com。參考文獻(xiàn)［1］ CECS 102:2002 門式剛架輕型房屋鋼結(jié)構(gòu)技術(shù)規(guī)程［S］. 北京：中國計(jì)劃出版社，2003.［2］ 徐珂,熊挺,孫惠敏.鋼結(jié)構(gòu)梁柱剛性節(jié)點(diǎn)抗震設(shè)計(jì)探討［J］.建筑結(jié)構(gòu),2006,36(9):6668.［3］ CHEN Y Y, WU X X, TIAN H, et al. Experiment of non-compact H-shaped members and frames subjected to cyclic loads and the prediction of capacities ［J］. International Journal of Steel Structures, 2006 (6): 215226.［4］ NARAYANAN R. Plated structures, stability and strength ［M］. London：Elsevier Applied Science, 1983.
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