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劉海卿， 孔德利， 王錦力
（遼寧工程技術(shù)大學(xué)建筑工程學(xué)院，阜新 123000）[摘要] 通過研究不同截面形式異形柱梁柱節(jié)點，并引入1350L形異形柱梁柱節(jié)點進行抗震性能數(shù)值模擬對比分析，研究了不同截面形式異形柱梁柱節(jié)點的滯回曲線、延性系數(shù)、極限荷載及骨架曲線等因素對抗震性能的影響。結(jié)果表明：異形柱梁柱節(jié)點的延性、耗能能力與柱截面形式有關(guān)；雙向荷載情況下，異形柱梁柱節(jié)點的屈服荷載、極限荷載及破壞荷載均較單向荷載情況下小；1350L形異形柱梁柱節(jié)點的位移延性系數(shù)較小，耗能能力弱于其他截面形式節(jié)點，在結(jié)構(gòu)設(shè)計中應(yīng)適當(dāng)加強配筋。
[關(guān)鍵詞] 異形柱；節(jié)點；反復(fù)荷載；不同截面；抗震性能
中圖分類號：TU375.3 文獻標識碼：A 文章編號：1002-848X(2012) Sl-0776-04Seismic behavior analysis of different section special-shaped columns joints
Liu Haiqing, Kong Deli, Wang Jinli
( College of Civil Engineering and Architecture, Liaoning Technical University, Fuxin 123000,China)Abstract: By studying the beam-columns joints of special-shaped columns with different section forms, and introducing the beam-columns joints of L form with 1350 special-shaped column, the influence of hysteresis curve, ductility factor, ultimate load and skeleton curve on the aseismic ability of the beam-column joints of special-shaped columns with different section was researched. The results indicate that the ductility and ability of energy dissipation of the beam-column joints of special-shaped columns are related to the section form of columns. The yield load, ultimate load and failure load of the beam-column joint of special-shaped columns in two-way load condition are smaller than that in one way load condition. The displacement ductility coefficient and ability of energy dissipation of beam column joint of L form with 1350 special-shaped column are smaller than that of columns with other section forms. So the appropriate reinforcement should be strengthened during the structural design process.
Keywords: special-shaped columns; joint; repeated loading; different section; seisnuc performance
