TY - GEN
T1 - Experimental investigation about dynamic bond-slip between reinforcing steel bar and concrete
AU - Yao, Wei
AU - Wu, Haijun
AU - Huang, Fenglei
PY - 2013
Y1 - 2013
N2 - The aim of the present research is to assess the dynamic performance of bond-slip between reinforcing steel bar and concrete. Precisely, the sensitivity of the bond stress-displacement relationship in the interface between reinforcing steel bar and concrete to strain rate is investigated. In this paper, the reinforcing steel bar/concrete specimens were tested in dynamic push-out experiments with modified split Hopkinson pressure bar (SHPB) system. The incident bar was used to apply compressive loading to single steel bar embedded in a surrounding concrete. Using this technique, the debonding progress was analyzed. Besides, the effect of loading rate and effective depth on the push-out tests was studied with the impact velocities in the range of 9 m/s - 29 m/s. It is seen that maximum push-out force increases with increasing loading rate. In addition, the dynamic interface bond force does not proportionally increase with the effective depth of steel bar.
AB - The aim of the present research is to assess the dynamic performance of bond-slip between reinforcing steel bar and concrete. Precisely, the sensitivity of the bond stress-displacement relationship in the interface between reinforcing steel bar and concrete to strain rate is investigated. In this paper, the reinforcing steel bar/concrete specimens were tested in dynamic push-out experiments with modified split Hopkinson pressure bar (SHPB) system. The incident bar was used to apply compressive loading to single steel bar embedded in a surrounding concrete. Using this technique, the debonding progress was analyzed. Besides, the effect of loading rate and effective depth on the push-out tests was studied with the impact velocities in the range of 9 m/s - 29 m/s. It is seen that maximum push-out force increases with increasing loading rate. In addition, the dynamic interface bond force does not proportionally increase with the effective depth of steel bar.
KW - Debonding
KW - Dynamic push-out experiment
KW - Split hopkinson bar
KW - Steel bar concrete interface
UR - http://www.scopus.com/inward/record.url?scp=84872956459&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.249-250.1073
DO - 10.4028/www.scientific.net/AMM.249-250.1073
M3 - Conference contribution
AN - SCOPUS:84872956459
SN - 9783037855577
T3 - Applied Mechanics and Materials
SP - 1073
EP - 1081
BT - Applied Mechanics and Mechanical Engineering III
T2 - 2012 3rd International Conference on Applied Mechanics and Mechanical Engineering, ICAMME 2012
Y2 - 14 November 2012 through 15 November 2012
ER -