Title:
408.2R-12: Report on Bond of Steel Reinforcing Bars Under Cyclic Loads
Author(s):
Joint ACI-ASCE Committee 408
Publication:
Technical Documents
Volume:
Issue:
Appears on pages(s):
35
Keywords:
anchorage; bar slip; bond; bond models; cyclic loads; design recommendations; development length; fatigue; hooks; earthquake loads; splices.
DOI:
Date:
9/1/2012
Abstract:
This report summarizes research on bond strength and behavior of steel reinforcing bars under cyclic loads. The report provides a background to bond problems, discusses the main variables affecting bond performance, and describes bond behavior under cyclic loads. Two general types of cyclic loads are addressed: high-cycle (fatigue) and low-cycle (earthquake and similar). The anchorage behaviors of straight bars, hooked bars, and lap splices are included. Analytical bond models are described, design recom¬mendations are provided for both high- and low-cycle fatigue, and suggestions for further research are given.