Experimental Research on Concrete Beams Being Strengthened Jointly by External Prestressing and Carbon Fiber Sheet

Abstract:

Base on two groups of comparison tests of bearing capacity of three rectangle section of steel concrete beams with different strength grades, the research analyzed the effect of concrete beams strengthened by carbon fiber sheet and strengthened jointly by carbon fiber sheet and external prestressing on the bearing capacity, failure modes, strain states, rigidity and ductility.The results show that bending resistance of steel concrete beams strengthened jointly by carbon fiber sheet and external prestressing can be improved obviously, and the usage performance and strengthened effect are obvious too.

• Periodical: Applied Mechanics and Materials (Volumes 71-78)
• Pages: 932-936
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.71-78.932
• Online since: July 2011
• Authors: Feng Guo Wang
• Keywords: Bridge Structure, Carbon Fiber Sheet, Composite Structure, External Prestressing, Strengthening

References

[1] Y. Kitane, A.J. Aref, G.C. Lee: Journal of Composites For Construction Vol. 8(2004), p.182.

[2] Jianqi Liu, Jingsha Wang, Naiqing Ding, Xiaojian Meng, Huiqun Yan: China Civil Engineering Journal Vol. 38(2005), pp.9-13, in Chinese.

[3] N.F. Grace: PCI Journal, Vol. 45(2000), p.84.

[4] Zhiping Kuang, Qiuhua Yang: Journal of Tongji University Vol. 36(2008), pp.1349-1354, in Chinese.

[5] Gang Wu, Zhitao Lu: Building Structure Vol. 30(2000), pp.6-10, in Chinese.

[6] Zongcai Deng: China Journal of Highway and Transport Vol. 14(2001), pp.45-51, in Chinese.

[7] Gang Wu, Lin An, Zhitao Lu: Building Structure Vol. 30(2000), pp.3-6, in Chinese.

[8] Wei Lu, Xing Liu, Yanxian Li: Building Science Vol. 24(2008), pp.27-31, in Chinese.