408.2R-92
Bond Under Cyclic Loads (Reapproved 2005)
1992, 32 pp.
$61.50

This state-of-the-art report summarizes the most recent research on bond behavior under cyclic loads. The report provides a background to bond problems, discusses the main variables affecting bond performance, and describes its behavior under cyclic loads. Two general types of cyclic loads are addressed: high-cycle (fatigue) and low-cycle (earthquake and similar) loads. The behavior of straight anchorages, hooks and splices is included. Design recommendations are provided for both high and low cycle fatigue, and suggestions for further research are given.

Contents:
Chapter 1--Introduction

1.1--Bond

1.2--Scope

1.3--Terminology

Chapter 2--Bond and anchorage

2.1--Bond stresses

2.2--Components of bond resistance

2.3--Failure modes

2.4--Bond mechanisms

2.5--Factors affecting bond strength under cyclic loads

2.6--Summary

Chapter 3--Bond behavior under cyclic loads

3.1--High cycle fatigue

3.2--Correlation between fatigue and sustained loading

3.3--Low cycle fatigue

3.4--Influence of cracking on bond strength

Chapter 4--Anchorage under high cycle fatigue

4.1--Straight bar anchorages

4.2--Hooked anchorages

4.3--Splices

Chapter 5--Anchorages under low cycle loading

5.1--Straight bar anchorages

5.2--Hooks

5.3--Splices

Chapter 6--Analytical bond models

Chapter 7--Design approaches

7.1--High cycle fatigue

7.2--Low cycle loading

7.3--ACI 408 recommendations

Chapter 8--Summary and conclusions

8.1--Summary

8.2--Conclusions

8.3--Recommendations for future research

Chapter 9--References