- 摘 要
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（1 浙江工業(yè)大學工程設計集團有限公司， 杭州 310014； 2 浙江浙工大檢測技術有限公司， 杭州 310014； 3 浙江工業(yè)大學建工學院， 杭州 310014）
［摘要］GFRP管混凝土組合長柱因其經濟性和耐久性良好，與其相關的研究與應用日漸廣泛，但對GFRP管混凝土組合長柱的研究較少。通過對此種構件進行低周往復荷載作用下荷載變形特性的試驗研究與有限元數(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，且隨長細比的增大，這種增強作用隨之下降；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生影響。
［關鍵詞］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文獻標識碼：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
*浙江省重點研發(fā)計劃項目（2018C03033-2）。
作者簡介：章雪峰，碩士，高級工程師，一級注冊結構工程師，Email：zhangxue_feng@126.com。
