Effect of Loading Rate on Bond Behavior Under Dynamic Loading

ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal

  


Title: Effect of Loading Rate on Bond Behavior Under Dynamic Loading

Author(s): Cheng Yan and Sidney Mindess

Publication: Special Publication

Volume: 175

Issue:

Appears on pages(s): 179-198

Keywords: bonding; dynamic loads; failure; reinforced concrete; stresses; tests

Date: 12/1/1998

Abstract:
The bond between deformed reinforcing bars and concrete under pull-out and push-in loading was studied under dynamic loading for plain concrete, polypropylene fibre reinforced concrete, and steel fibre reinforced concrete. A universal testing machine and an instrumented drop weight impact machine were used to generate static, medium rate, and impact loading, which covered a bond stress rate ranging from 0.5 x 1 O-8 to 0.5x 10-2 MPa/s. The stress distributions in both the steel and the concrete, the bond stresses and slips, the bond stress-slip relationships, and the fracture energy in bond failure were investigated. It was found that loading rates had a significant influence on these parameters.