Title: Splitting Bond Failure of Columns Under Seismic Action

Author(s): T. Ichinose

Publication: Commentary Reference

Volume:

Issue:

Appears on pages(s): 535-542

Keywords: beams (supports); bonding; columns (supports); cyclic loads; ductility; energy; Structural Research

DOI:

Date: 11/1/1995

Abstract:
The mechanism of splitting bond failure in reinforced concrete columns subjected to reversed cyclic antisymmetric bending is analytically investigated. Reversed loading is found to accelerate bond failure in columns after flexural yielding because residual inelastic strains of longitudinal bars induced during opposite loading are forced in concrete. To prevent such failure, bond strength must be large enough to compress the residual strains. The necessary development length of bars running through a member with plastic hinges at its ends is presented.