CFRP筋受压性能及人工海水环境对其影响的试验研究

龚永智; 张继文; 蒋丽忠; 涂永明

doi:10.13204/j.gyjz201003021

CFRP筋受压性能及人工海水环境对其影响的试验研究

doi: 10.13204/j.gyjz201003021

1.
1. 中南大学土木建筑学院,长沙410075;
2.
2. 东南大学土木工程学院,南京210096)

基金项目:

国家自然科学基金资助项目(50808039)

详细信息

作者简介:
龚永智,男,1978年出生,博士,讲师. E－mail:applecap@sina.com

中图分类号: TU599
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- 文章访问数: 61
- HTML全文浏览量: 2
- PDF下载量: 141
- 被引次数: 0
出版历程
- 收稿日期: 2009-05-18
- 刊出日期: 2010-03-20

EXPERIMENTAL RESEARCH ON THE COMPRESSION PERFORMANCE AND THE INFLUENCE OF ARTIFICIAL SEAWATER CORROSION ON THE CFRP TENDONS

1.
1. College of Civil Engineering and Architecture,Central South University,Changsha 410075,China;
2.
2. College of Civil Engineering,Southeast University,Nanjing 210096,China

摘要

摘要: 高性能CFRP筋作为非金属的纤维增强聚合物筋,因具有高强、轻质、耐腐蚀等特点,被认为是替代普通钢筋和预应力钢筋用在腐蚀环境和特殊环境的最佳选择之一。通过运用一种改进的新的CFRP筋材料受压性能的测试方法分别对国产CFRP筋与进口CFRP筋材料受压性能进行了测试,研究海水腐蚀环境对其材料性能的影响。研究结果表明:CFRP筋具有较高的抗压强度和较大的极限压应变,其材料受压时应力应变关系曲线近似为线性关系;人工海水腐蚀对材料受拉性能的影响很小,但对材料受压性能的影响相对较大。
- CFRP筋 /
- 受压性能 /
- 海水腐蚀 /
- 测试方法
Abstract: High-Performance CFRP tendon is a nonmetal fiber polymer reinforcement,which has the characteristic of high strength,lightweight,corrosion resistance,etc. So it is one of the best choices,in which CFRP tendons are substitute for the ordinary and prestressing reinforcements in the corrosion circumstances and meeting the using requirements of the special structures. A meliorative test method of the compression performance of the CFRP tendons is put forward in this paper. The compression performance of the domestic and imported CFRP tendons is tested by the meliorative test method,and the influence of the seawater corrosion on the CFRP tendons is studied. The results show that the CFRP tendons have the performance of the high strength and the large ultimate strain of compression, and the stress strain curve expresses as approximate lines. The influence of the artificial seawater corrosion on the tension performance of CFRP tendons is very little,but it is obvious on the compression performance.
- CFRP tendons /
- compression /
- performance seawater /
- corrosion test method

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参考文献(7)

Reported by ACI Committee ACI440. Guide for the Design and Construction of Concrete Reinfor ced with FRP Bars(ACI440.1 R －03)[S].

[2] Wu W-P. Thermomechanical Properties of Fiber Reinfor ced Plastic(FRP) Bars[D]. Morgantown: West Virginia University,1990.

[3] Alsayed SH,Al-Salloum YA,Almusallam TH,et al. ConcreteColumns Reinfor ced by Glass Fiber Reinforced Polymer Rods[J].American Concrete Institute,1999:103-112.

[4] Choo Ching Chiaw,Harik E Issam,Gesund Hans. Strength of Rectangular Concrete Columns Reinforced with Fiber-Reinfor cedPolymer Bars[J]. ACI Structural Journal,2006,103(3):452－459.

[5] 梅葵花. CFRP 筋拉索斜拉桥的研究[D].南京:东南大学,2005.

[6] 张新越,欧进萍. FRP 加筋混凝土短柱受压性能试验研究[J].西安建筑科技大学学报,2006,38(4):467-472.

[7] 周继凯,杜钦庆,袁明亮,等. GFRP 筋抗压力学性能试验研究[J].河海大学学报,2008,36(4):542-545.

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