Experimental Study on the Flexural Performance of RC Beam Strengthened with CFRP Sheet

Author(s):  
Phi Long Nguyen ◽  
Ngoc Gianh Pham ◽  
Trung Hieu Nguyen
2009 ◽  
Vol 405-406 ◽  
pp. 343-349 ◽  
Author(s):  
Zong Cai Deng ◽  
Jian Hui Li ◽  
He Fei Lin

In order to investigate the strengthening effects of aramid fiber reinforced polymer (AFRP) sheets on the flexural performance of the corroded beams, the flexural behaviors of corroded RC beams strengthened with AFRP sheets under different degrees of corrosion (minor: reinforcement mass loss is 2.0%, medium: reinforcement mass loss is 6.0%) are researched experimentally in this paper, and compared with that of the control beams (un-corroded) and un-strengthened corroded beams. The results show that,compared with un-strengthened corroded beams under same degrees of corrosion, the cracking load, yield load and ultimate load of minor corroded RC beam strengthened with AFRP sheets is respectively increased by 20%, 27% and 60%, and increased by 15%, 36% and 83% for medium corroded RC beam strengthened with AFRP sheets respectively; The ultimate deflection of the medium corroded beam strengthened with AFRP sheets is 166% larger than that of corroded un-strengthened beam. AFRP sheets can improve significantly the bearing capacity and deformation for corroded RC beams.


2021 ◽  
Vol 74 (1) ◽  
pp. 287-293
Author(s):  
Masahiro MINODA ◽  
Haotian LI ◽  
Ayumi SATOH ◽  
Kiyoshi MURAKAMI

2020 ◽  
Vol 73 (1) ◽  
pp. 348-354
Author(s):  
Shohei UEMURA ◽  
Kiyoshi MURAKAMI ◽  
Ayumi SATOH ◽  
Seiichiro YAMAUCHI

2011 ◽  
Vol 105-107 ◽  
pp. 853-856
Author(s):  
Zhe Li ◽  
Gang Li ◽  
Qin Zhao ◽  
Shuai Zhang

For the effect of nonpre-stressed carbon fiber reinforced polymer (CFRP) Sheet Strengthening concrete beams to improve bending stiffness and crack resistance is not satisfactory, and it is difficult to totally unloading on the actual reinforcement, so in this paper, ANSYS is used to research the strengthened effectiveness and impact factors of pre-stressed CFRP reinforced concrete beams considering the secondary load.


2014 ◽  
Vol 926-930 ◽  
pp. 571-575
Author(s):  
Bin Bin Li ◽  
She Liang Wang ◽  
Juan Li Zhao

Considering the replacement ratio, reinforcement ratio, baked brick aggregate content, SF, superplasticizer content and multiphase fiber composites content, the 13 RAC beams were tested to study the 5 kinds of effects on the bearing capacity and deformation performance. Based on the experimental results, the following conclusions are drawn: the formulas for the bending bearing capacity and shear strength of recycled concrete beams were recommended, and compared with the experiment results, the reliability of the formulas was verified.


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