In order to evaluate a bond splitting strength of lap splices with high-strength concrete of 60 MPa grade, pure bending tests of eighteen simple beam type specimens were conducted. Bond splitting strength was applied to the bottom longitudinal bars of beams which cause the bond splitting failure in the side-split mode.
As a result, the bond splitting strength of lap splices showed a tendency to decrease as the length of lap splices became longer. And the bond splitting strength of lap splices increased in proportion to the increase in the ratio of transverse reinforcement.
Furthermore, the bond splitting strength of lap splices equation for high-strength concrete of 60 MPa grade proposed based on the past bond splitting strength equation. By the verification to this experiment and past experiment data, this equation was able to confirm the adaptability.
