Abstract:
Deflection occurs on reinforced concrete wall when it reaches the ultimate strength can
be contributed by the deflection due to bending, shear and bond slip. The bond slip occurs when
the loss of bond between concrete and steel reinforcement, causing the stress distribution
becomes disturbed. This generates an additional deflection on the walls of reinforced concrete.
This analysis study was conducted to predict the additional deflection due to the bond slip on
reinforced concrete walls that subjected to lateral load at the ultimate strength condition of the
walls. The deflection due to bond slip at the ultimate strength condition of the walls is estimated
by the strength-of-material concept. The wall ultimate strength is determined as the minimum of
flexural and shear strengths that based on a strength-of-material concept, and the shear strength
and the Softened strut-and-tie model, respectively. The specimens of reinforced concrete walls
used in this study are the reinforced concrete walls with a single curvature that available in the
literature. The results of this study indicated that the deflection due to bond slip provides the
additional deflection average of 5.5% of the total deflection due to bending and shear as the wall
reaches the ultimate strength. This study shows that the effect of deflection due to bond slip is
smaller than the deflection due to shear and bending.
