BEHAVIOR OF SCC BEAMS STRENGTHENED WITH CFRP UNDER SHEAR

Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ

Sarmad S. Abdulqader¹  Ragheed F. Makki²  Mohanad W. Mousa³ 

[1]Building and Construction Engineering Department, University of Technology

[2]Civil Engineering Department, Faculty of Engineering, University of Kufa

[3]Postgraduate Student at Building and Construction Engineering Department, University of Technology

关键词: Self-compacting concrete;    Shear strength;    Reinforced concrete;    CFRP strips;   

DOI  :  http://dx.doi.org/10.30572/2018/kje/100109

来源: DOAJ

【 摘 要 】

This paper presents an experimental study of structural behavior of self compacting reinforced concrete beams strengthened in shear by vertical CFRP strips. The experimental work consists of casting and testing of eleven simply supported reinforced concrete beams. One of the tested beam was un-strengthened to be considered as beams, while the remaining beams were tested after being strengthened using vertical CFRP strips. In this study, three parameters were considered, the configuration of CFRP sheets wrapping system, i.e. two sides, U-shape and full wrapped, effect of horizontal strap of CFRP strips to enhance the vertical CFRP strips and CFRP amount. The results showed that the presence of horizontal strap of CFRP strips on the vertical strips increases the shear capacity of the beams ranged between (3-27)% for beams with the same properties, while the increase in the ultimate loads ranged between (20-26)% and (39.5-46)% by comparison of wrapping system (two side with U-shape) and (two side with full wrapped) of CFRP strips, respectively.

【 授权许可】

Unknown