角鋼加強(qiáng)鋼筋混凝土十字形截面異形柱抗震性能分析
李琪,魏曉斌
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(揚(yáng)州大學(xué)建筑科學(xué)與工程學(xué)院,揚(yáng)州 225009)[摘要]通過5根角鋼加強(qiáng)的鋼筋混凝土十字形截面異形柱的低周反復(fù)加載試驗(yàn),分析了不同的配鋼率、配鋼形式下試件承受壓、彎、剪復(fù)合作用時(shí)的破壞形態(tài)。對比ANSYS分析結(jié)果,闡述了構(gòu)件的延性、滯回特性、剛度退化以及耗能能力,證明了構(gòu)件形式的優(yōu)異性。[關(guān)鍵詞]角鋼加強(qiáng);異形柱;材料非線性;抗震性能中圖分類號:TU3753文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2011)08-0092-04Anti-seismic analysis of cross\|shaped RC columns reinforced by-angle steelLi Qi, Wei Xiaobin(College of Civil Science and Engineering of Yangzhou University, Yangzhou 225009, China)Abstract:Through the low cyclic reversed lateral loading experiment for five cross\|shaped RC columns reinforced by angle steel, the failure mode at the combined effect of pressure, bend and shear with different steel ratios or different reinforced forms was analyzed. According to the comparison of the analysis results with ANSYS, the ductility, hysteretic characteristics, degradation of stiffness and energy dissipation capacity were analyzed and the advantage of this kind of columns was verified.Keywords:angle steel reinforced; specially shaped columns; material nonlinearity; anti-seismic capacity作者簡介:李琪,教授,Email:lqgjh@126.com。參考文獻(xiàn)[1]吳佳杰. 鋼骨混凝土L形截面柱在低周反復(fù)荷載作用下的試驗(yàn)研究[D]. 揚(yáng)州:揚(yáng)州大學(xué),2009.[2]曲福來. 鋼筋混凝土不等肢異形柱抗震性能試驗(yàn)研究[D]. 大連:大連理工大學(xué),2008.[3]江見鯨,陸新征,葉列平. 混凝土結(jié)構(gòu)有限元[M]. 北京:清華大學(xué)出版社,2004.[4]曹云中. 空間異形柱框架抗震性能的研究[D]. 杭州:浙江大學(xué),2005.
[5]魏曉斌,李琪. 角鋼加強(qiáng)鋼筋混凝土十字形截面異形柱計(jì)算分析[J]. 建筑結(jié)構(gòu),2010,40(S2):395-397.
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