华北自然环境条件下碳纤维片材耐久性能的试验研究

杨勇新; 杨萌; 赵颜; 廉杰

doi:10.13204/j.gyjz200802002

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华北自然环境条件下碳纤维片材耐久性能的试验研究

doi: 10.13204/j.gyjz200802002

1.
中冶集团建筑研究总院,北京 100088

基金项目:

攻关计划(国际合作)项目(2005DFBA0002)资助

详细信息

作者简介:
杨勇新,男,1963年11月出生,博士后,教授级高级工程师.E-mail：yangyongxin@tsinghua.org.cn

计量
- 文章访问数: 71
- HTML全文浏览量: 9
- PDF下载量: 104
- 被引次数: 0
出版历程
- 收稿日期: 2007-10-10
- 刊出日期: 2008-02-20

STUDY ON DURABILITY OF CFRP SHEETS UNDER THE ENVIRONMENT OF NORTH CHINA

1.
Central Research Institute of Building and Construction,MCC Group,Beijing 100088

摘要

摘要: 碳纤维片材加固混凝土结构广泛应用于土木工程,关于其耐久性能的研究已得到了工程界的重视。通过对目前土木工程加固常用的几种碳纤维片材耐久性进行的试验研究,考察在华北地区自然环境条件下老化对其抗拉强度、伸长率和弹性模量等的影响。目前已完成了40个试件的试验,结果表明,随着老化时间的延长,CFRP的抗拉强度和伸长率略有降低,弹性模量基本保持不变。
- FRP /
- 碳纤维 /
- 耐久性
Abstract: Concrete structures reinforced by CFRP sheets are widely used in civil projects and much attention is paid to their durability. Studies and tests were done on the durability of common CFRP sheets. Influence to strength, extensibility and Young?? s modulus of CFRP sheets was investigated in nature aging environment of north China. Forty sheets were tested and the results indicate that as the increase of time, strength and extensibility of CFRP sheets will decrease slightly and Young?? s modulus will basically remain a constant.
- fiber reinforced polymer /
- carbon fiber /
- durability

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参考文献(8)

杨勇新, 王敬, 张小冬. 碳纤维布加固混凝土结构耐久性能初步研究. 港工技术, 2002(2) : 25-27

[2] Steckel G L, Hawkins G F, Bauer J L. Environmental Durability of Composit es for Seismic Ret rofit of Bridge Columns. Proceedings of NIST

Workshop on Standards Development for the Use of Fiber Reinforced Polymers for the Rehabilitation of Concrete and Masonry St ructures.Tucson, Arizona: 1998(1-8) : 83-96

[3] 岳清瑞, 彭福明, 杨勇新, 等. 碳纤维片材耐久性初步研究. 工业建筑, 2004, 34(增刊) : 8-11

[4] 任慧韬. 纤维增强复合材料加固混凝土结构基本力学性能和长期受力性能研究: [博士学位论文].大连: 大连理工大学, 2003

[5] CECS 146: 2003 碳纤维片材加固混凝土结构技术规程

[6] Gomez J, Casto B. Freeze-Thaw Durabil ity of Composite Mat erials. Fiber Composit es in Infrastructure: Proceedings of the First International Conf erence in Inf rastructures. Tucson: University of Arizona, 1996:947-955

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