（1 浙江工业大学工程设计集团有限公司， 杭州 310014； 2 浙江浙工大检测技术有限公司， 杭州 310014； 3 浙江工业大学建工学院， 杭州 310014）

［摘要］GFRP管混凝土组合长柱因其经济性和耐久性良好，与其相关的研究与应用日渐广泛，但对GFRP管混凝土组合长柱的研究较少。通过对此种构件进行低周往复荷载作用下荷载变形特性的试验研究与有限元数值分析，揭示不同组合形式的GFRP混凝土组合长柱的抗震性能，研究结果表明：GFRP管的约束会显著增加组合长柱的极限变形能力和极限承载能力，且随长细比的增大，这种增强作用随之下降；GFRP管的缠绕方式也会对长柱的轴向承载能力和变形刚度产生影响。

［关键词］GFRP管混凝土组合长柱; 滞回曲线; 极限变形; 骨架曲线

中图分类号：TU528文献标识码：A文章编号：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

*浙江省重点研发计划项目（2018C03033-2）。

作者简介：章雪峰，硕士，高级工程师，一级注册结构工程师，Email：zhangxue_feng@126.com。