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(中南大學(xué)鐵道校區(qū)土木建筑學(xué)院  長(zhǎng)沙 410075)

［提要］  報(bào)道了9根不同剪力連接度鋼-混凝土組合梁(5根簡(jiǎn)支組合梁，4根連續(xù)梁)的低周豎向反復(fù)荷載部分試驗(yàn)研究結(jié)果。對(duì)鋼-混凝土組合梁的破壞形態(tài)、滯回規(guī)律、耗能能力、剛度退化規(guī)律等抗震性能進(jìn)行了深入的分析，重點(diǎn)探討了不同剪力連接度對(duì)鋼-混凝土組合梁抗震性能的影響。

［關(guān)鍵詞］  鋼-混凝土組合梁  抗震性能  剪力連接度  試驗(yàn)研究

Effect of Shear Connection Degree on Seismic Resistant Performance of Steelconcrete Composite Beams/Authors:Jiang Lizhong,Yu Zhiwu,Cao Hua,Liu Zhongwu(Civil Arch.Eng.College,Central South Universty,Changsha 410075,China)

Abstract:The test results of seismic resistant performance of steel-concrete composite beams under cyclic points concentrated loads are introduced including five single-span steel-concrete composite beams and four two-span steel-concrete composite continuous beams (5 SCB and 4 CCB). It deeply analyzes the difference of the failure mode,load and deformation curve,ductility,the degradation of strength and rigidity,deformation-rehabilitation capacity etc. The effect of shear connection degree is researched on the seismic resistant performance of steel-concrete composite beams.

Keywords:steel-concrete composite beam; seismic resistant performance; shear connection degree; experimental research

*國(guó)家自然科學(xué)基金資助項(xiàng)目(50208018)。