Title:
Mathematical Model for Bond-Slip Behavior Under Cyclic Loading
Author(s):
David Z. Yankelevsky, Moshe A. Adin, and Daniel N. Farhey
Publication:
Structural Journal
Volume:
89
Issue:
6
Appears on pages(s):
692-698
Keywords:
anchorage (structural); bond (concrete to reinforcement); bond stress; confined concrete; cyclic loads; earthquakes; embedment; mathematical models; reinforced concrete; reinforcing steels; slippage; Structural Research
DOI:
10.14359/4143
Date:
11/1/1992
Abstract:
Models the bond-slip behavior of a reinforcing steel bar embedded in concrete and subjected to monotonic and cyclic loading. The bond-slip behavior is described commonly by its envelope and is idealized according to the separate ascending, descending, and ultimate loading stages. The bond stress-slip relationship is usually described by piecewise linear and multidegree functions using cumbersome techniques that link the branches. In this paper, the typical cyclic bond stress-slip relationship is represented by three major resistance components that appear to control the behavior and act, changing their influence, at various loading stages. The model is developed according to experimental bond-slip tests for well-confined concrete reported in the literature and is based on their observations. Results predicted by that model are compared with experimental results and show good correspondence.