Abstract
This manuscript assessed the applicability of the existing ultimate bond formulas originally developed for externally bonded carbon fiber-based composites in the analysis of steel-reinforced polymers (SRPs). In the first part, the methods of predicting the bond capacity are reviewed, the differences are indicated, and the factors determining the bond are discussed; then, using the bond test results of over 400 samples available in the literature, the bond prediction methods are assessed by graphical comparison. The evaluation mainly concerned concrete elements and epoxy adhesives; however, to a lesser extent, a similar analysis was performed for the masonry substrate and grout matrices. The results showed the relatively good applicability of the majority of bond prediction models for the analysis of SRP composites. In most cases, the ultimate bond force was slightly underestimated, which was beneficial in the design of this type of strengthening. Larger discrepancies concerned weaker grout matrices.
Highlights
Strengthening of structures with externally bonded reinforcement is nowadays the most popular method of restoring or improving the bearing capacity
This paper aims to answer, at least partially, the question of whether they can be used in the design of steel-reinforced polymer (SRP) strengthening
Among the prediction guidelines concerning the SRP bonded to masonry, the lowest number of demerit points was obtained by the British standard TR55/20000 (28 points)
Summary
Strengthening of structures with externally bonded reinforcement is nowadays the most popular method of restoring or improving the bearing capacity. Bonded usually exhibits forms of failure unknown for normal reinforced concrete It could question howordescribed differences affect the behavior of strengthened be aThe fracture of theis, fibers, more commonly, debonding of the composite. Bonded exhibits of failure unknown reinforced concrete It could be a fracture of the fibers, or more commonly, debonding of the composite. Debonding can be defined a brittle loss ofinadhesion composite and substrate This is the most common failure mode of externally bonded fiber-reinforced strengthening systems. Bond performance may be determined in double-shear, andOriginally, notched beam defined by Those are plate end interfacial debonding, concrete cover separation, the first two cases, depending on how the force is applied, there can be an indicated push-shear test intermediate flexural crack-induced debonding, and critical diagonal sheartherefore, crack-induced debonding. 14/2001 [34], Japan JCI 2003 [35], Swiss Code SIA 166/2004 [36], Italian standard CNR-DT200R1/2013 [37], and the newest international fib Bulletin 90/2019 [38]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
