（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； 4 长兴昆仑电力设计有限公司， 长兴 313100）

［摘要］GFRP管混凝土组合柱因其经济性和耐久性可适应较恶劣的环境，但目前对GFRP管混凝土组合长柱的研究较少。通过对这种组合长柱试件进行轴心受压试验与有限元数值分析，揭示不同组合形式对其受力性能的影响。结果表明，GFRP管的约束会明显提高组合长柱试件的极限承载能力，且随长细比的增大，承载力的提高幅度下降；GFRP管的纤维缠绕角度也会对组合长柱试件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； 轴向承载力； 轴向变形； 纤维缠绕角度

中图分类号：TU528文献标识码：A文章编号：1002-848X(2018)09-0072-06

Study on axial compressive capacity characteristics of long concrete-filled GFRP tube composite  columns

Zhang Xuefeng1,2, Shan Luyang3, Yang Cheng4, 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; 4 Changxing Kunlun  Electric Power Design Institute Co.,  Ltd.,  Changxing 313100, China)

Abstract:The concrete\|filed GFRP tube  composite column can adapt to the worse environment because of its economy and durability, but the research on the long concrete\|filed  GFRP tube composite column is few. Through the axial compression test and finite element numerical analysis, the influences of different combination forms on the mechanical properties of  this type of  long composite column  were revealed. The results show that the ultimate bearing capacity of  long composite column  can be obviously improved by the constraint of GFRP tube, and the increment of the bearing capacity decreases with the increase of slenderness ratio. The winding angle of GFRP tube also affects the axial bearing capacity and deformation stiffness of  long composite column.

Keywords:long concrete\|filled glass fiber reinforced polymer(GFRP) tube composite column; axial bearing capacity; fiber axial deflection; winding angle

*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。