GFRP管钢骨混凝土组合柱偏压承载力计算-JournalofNortheastern.PDF

第31 卷第8期 东 北 大 学 学 报 ( 自 然 科 学 版 ) Vol31, No. 8 2 0 10 年 8 月 Journal of Northeastern U niversit ( Natural Science) Aug. 2 0 1 0 GFRP 1 1 2 秦国鹏, 王连广 , 刘美思 ( 1. , 110004; 2. , 110168) : GFRP , 5 GFRP , , : , , GFRP , , , : GFRP ; ; ; ; : T U 398 : A : 1005-3026( 20 10) 08- 1200-04 Calculation of Bearing Capacity of Eccentrically Loaded GFRP Tube Columns Filled with Steel Reinforced Concrete 1 1 2 QIN Guo-p eng , WAN G L ian-guang , LI U Mei-si ( 1. School of Resources Civil Engineering , Northeastern Universit , Shen ang 110004, China; 2. School of Civil Engineering, Shen ang Jianzhu Universit , Shen ang 110 168, China. Correspondent: QIN Guo-peng, E-mail: qinqin 1109 @ 163. com) Abstract GFRP tube filled w ith steel reinforced concrete column consists of an outer tube made from glass fiber reinforced pol mer ( GFRP) , steel reinforcement and inside core concrete. Tests w ere conducted with five specimens to stud their bearing capacit under eccentrical load via a nonlinear anal sis program based on the fiber model. T he effects of strength of concrete, slenderness ratio, eccentricit and percentage of reinforcement on the mechanical properties of the eccentricall loaded columns w ere anal zed, w ith the relevant load-deflection relationship calculated. The results indicated that the bearing capacit of such composite members increases w ith the core concrete strength and percentage of reinforcement but decreases w ith the increasing slenderness ratio and eccentricit . Based on the anal sis of calculated results, the formulae are given to predict the bearing capacit of the composite co