TY - GEN
T1 - Pullout and bond of glass fibre reinforced polymer/steel wire composite rebars in concrete
AU - Hao, Q. D.
AU - Wang, Y. L.
AU - Ou, J. P.
N1 - Publisher Copyright:
© 2007 International Institute for FRP in Construction
PY - 2007
Y1 - 2007
N2 - This paper studies the effect of rib spacing, rebar diameter, embedded length, concrete compressive strength, concrete cover thickness, and concrete cast depth on bond behavior of Glass Fiber Reinforced Polymer (GFRP)/steel wire composite rebars under direct pullout conditions. This involved a total of 180 pullout specimens containing 8, 10, 12, and 14 mm rebars embedded in concrete. The test embedded length was 5, 10, 15, 20, 25, and 30 times the rebar diameter, respectively. For each rebar, the test results included the mode of failure, the average bond strength and the slip at the loaded end. The failure mode was found to differ substantially from that of deformed steel rebars because of damage to the surface of the rebar when pullout took place. The test results showed that the bond behavior was optimum when the rib spacing was the same with the rebar diameter. The bond behavior of GFRP/steel wire composite rebars also varied with the rebar diameter, embedded length, concrete compressive strength, concrete cover thickness, and concrete cast depth obviously. The test results can provide theoretical basis to determine the development length, to build the model of bond-slip constitutive relationship of the GFRP/steel wire composite rebars, and to establish the related criterions.
AB - This paper studies the effect of rib spacing, rebar diameter, embedded length, concrete compressive strength, concrete cover thickness, and concrete cast depth on bond behavior of Glass Fiber Reinforced Polymer (GFRP)/steel wire composite rebars under direct pullout conditions. This involved a total of 180 pullout specimens containing 8, 10, 12, and 14 mm rebars embedded in concrete. The test embedded length was 5, 10, 15, 20, 25, and 30 times the rebar diameter, respectively. For each rebar, the test results included the mode of failure, the average bond strength and the slip at the loaded end. The failure mode was found to differ substantially from that of deformed steel rebars because of damage to the surface of the rebar when pullout took place. The test results showed that the bond behavior was optimum when the rib spacing was the same with the rebar diameter. The bond behavior of GFRP/steel wire composite rebars also varied with the rebar diameter, embedded length, concrete compressive strength, concrete cover thickness, and concrete cast depth obviously. The test results can provide theoretical basis to determine the development length, to build the model of bond-slip constitutive relationship of the GFRP/steel wire composite rebars, and to establish the related criterions.
KW - Bond behavior
KW - Concrete
KW - GFRP/steel wire composite rebar
KW - Pull-out test
UR - https://www.scopus.com/pages/publications/85083576499
M3 - 会议稿件
AN - SCOPUS:85083576499
T3 - Proceedings of the 1st Asia-Pacific Conference on FRP in Structures, APFIS 2007
SP - 745
EP - 751
BT - Proceedings of the 1st Asia-Pacific Conference on FRP in Structures, APFIS 2007
A2 - Smith, Scott T.
PB - International Institute for FRP in Construction (IIFC)
T2 - 1st Asia-Pacific Conference on FRP in Structures, APFIS 2007
Y2 - 12 December 2007 through 14 December 2007
ER -