- 摘 要
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（1 浙江工業(yè)大學(xué)工程設(shè)計集團(tuán)有限公司， 杭州 310014； 2 浙江浙工大檢測技術(shù)有限公司， 杭州 310014； 3 浙江工業(yè)大學(xué)建工學(xué)院， 杭州 310014）
［摘要］GFRP管混凝土組合長柱因其經(jīng)濟(jì)性和耐久性良好，與其相關(guān)的研究與應(yīng)用日漸廣泛，但對GFRP管混凝土組合長柱的研究較少。通過對此種構(gòu)件進(jìn)行低周往復(fù)荷載作用下荷載變形特性的試驗(yàn)研究與有限元數(shù)值分析，揭示不同組合形式的GFRP混凝土組合長柱的抗震性能，研究結(jié)果表明：GFRP管的約束會顯著增加組合長柱的極限變形能力和極限承載能力，且隨長細(xì)比的增大，這種增強(qiáng)作用隨之下降；GFRP管的纏繞方式也會對長柱的軸向承載能力和變形剛度產(chǎn)生影響。
［關(guān)鍵詞］GFRP管混凝土組合長柱; 滯回曲線; 極限變形; 骨架曲線
中圖分類號：TU528文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2018)09-0078-05
Analysis on seismic behaviors of long concrete-filled GFRP tube columns
Zhang Xuefeng1,2, Shan Luyang3, Zheng Shuguang1, Yang Junjie3
(1 Zhejiang University of Technology Engineering Design Group Co., Ltd., Hangzhou 310014, China; 2 Testing Technology Co., Ltd. of Zhejiang University of Technology, Hangzhou 310014, China; 3 Faculty of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, China)
Abstract:The research and application of long concrete\|filled GFRP tube columns are becoming more and more extensive because of their economy and durability, but the study of long concrete-filled GFRP tube (CFGFT) columns is less. Through experimental study and finite element numerical analysis on deformation characteristics of such components under load low cyclic loading, the seismic behaviors of GFRP columns in different combinations were revealed. Results show that the GFRP tube constraint will significantly increase ultimate deformation capacity and ultimate bearing capacity of long composite columns, and with the increase of the slenderness ratio, this enhancement effect decreases; winding mode of GFRP tube impacts the axial load capacity and deformation stiffness of long columns.
Keywords:long concrete\|filled GFRP tube column; hysteretic curve; ultimate deformation; skeleton curve
*浙江省重點(diǎn)研發(fā)計劃項(xiàng)目（2018C03033-2）。
作者簡介：章雪峰，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email：zhangxue_feng@126.com。
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