Title:
Effect of Loading Rate on Bond Behavior Under Dynamic Loading
Author(s):
Cheng Yan and Sidney Mindess
Publication:
Symposium Paper
Volume:
175
Issue:
Appears on pages(s):
179-198
Keywords:
bonding; dynamic loads; failure; reinforced concrete; stresses; tests
DOI:
10.14359/5922
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.