Title:
Bond-Slip Relationships in High-Performance Concrete with Plain Steel Bars
Author(s):
Marcin Dyba and Andrzej Seruga
Publication:
Structural Journal
Volume:
121
Issue:
1
Appears on pages(s):
159-170
Keywords:
bond behavior; bond stress-slip relationship; high-performance concrete (HPC); pullout test
DOI:
10.14359/51739192
Date:
1/1/2024
Abstract:
This paper investigates the bond behavior between plain steel
bars and high-performance concrete (HPC) to study the effect
of embedment length and concrete compressive strength on bond
performance. A total of 48 concrete specimens were cast and tested
under uniaxial load. The main test parameters include the active
bond length and concrete compressive strength. Test results show
that the ratio of maximum bond stress to concrete compressive
strength ranges from 0.12 to 0.17. Moreover, it can be concluded
that the maximum bond stress is increased with an increase in
concrete compressive strength and is decreased with a longer
embedment length of plain steel bars. The adhesive bond stress is
approximately 55% of the maximum bond stress. Finally, a new
bond stress-slip model was proposed, and good agreement can be
achieved between the test research and the theoretical prediction
based on the proposed model.