For each reinforcing bar, bond stress-slip constitutive relationships and failure mode were experimentally determined. The data are obtained as a family of bond stress-slip curves for the same geometrical configuration to account for material/manufacturing variability. The bond strength of FRP rebar is...
2.1.1. FRP bars Fig. 1 shows the different types of FRP bars used in this study. In particular, these bars are different based on fibre type (basalt, carbon, glass and hybrid), diameter size (6 to 16 mm) and surface characteristics (sand coated (SC), sand coated with helically wrappi...
, 1992). The addition of polymers to cementitious repair mortars was found to result in better bond characteristics on specimens subjected to extensive temperature cycles (Atzeni et al., 1993). Chen et al. (1995) measured a significant increase in shear bond strength with the addition of ...
Study of the Bond-Slip Behavior between Rebar and Concrete Based on Acoustic Emission Technology应用声发射技术的钢筋与混凝土粘结滑移特性研究 In order to study the bond-slip characteristics between rebar and concrete,pull-out experiment was carried out for reinforced concrete specimens with diffe... LU...
the analytical solution was derived for the key point coordinates of the bond–slip curve (Gao et al.,2019). However, as shown in Fig.1, the SRRC rebar has a square section, which does not validate the hypothesis in the derivation process, and the results of SRRC rebar contain complex ...
Owing to the special localized delamination and slip phenomena of the FRP composite-concrete interface, it is difficult to use conventional design theory like the fiber modeling, which is generally used in beam or column analysis, to evaluate the FRP strengthened RC members precisely. To consider ...
This paper reports the results of an experimental investigation carried out to evaluate the bond stress behavior of basalt fiber-reinforced polymer (BFRP) bar and steel rebar (SR) in conventional C30-type concrete. The experimental program was conducted on testing 16 hinged beam specimens that were...
Chen B, Liu J (2004) Properties of lightweight expanded polystyrene concrete reinforced with steel fiber. Cem Concr Res 34:1259–1263 Article Google Scholar Eligehausen R, Popov EP, Bertero VV (1983) Local bond stress-slip relationships of deformed bars under generalized excitations. Report UCB...
The average bond stress versus slip curve is plotted for all specimens and their failure modes are identified. The effects of the embedment length and diameter of an FRP rebar on its bond strength are examined in this work. The bond strengths obtained from the test results are compared with ...
seawater sea-sand concrete; glass fiber; expansion agent; steel–FRP composite bars; freezing–thawing environment; bond–slip performance1. Introduction In recent years, the rapid development of infrastructure construction in coastal cities and island areas, coupled with the acceleration of urbanization,...