Title:
Behavior and Testing of Anchors in Simulated Seismic Cracks
Author(s):
Matthew S. Hoehler and Rolf Eligehausen
Publication:
Structural Journal
Volume:
105
Issue:
3
Appears on pages(s):
348-357
Keywords:
anchor; crack cycling; cracked concrete; earthquake; testing
DOI:
10.14359/19794
Date:
5/1/2008
Abstract:
This paper deals with the behavior and testing of cast-in-place and post-installed anchors in cracked concrete where the cracks are repeatedly opened and closed. This condition can be decisive for determining the suitability of an anchor for earthquake applications. First, the results of investigations to establish representative crack cycling conditions for anchors during an earthquake are summarized. Second, new experimental tests with headed studs and four types of post-installed anchors under simulated seismic crack cycling conditions are presented and discussed. The discussion focuses on the behavior of different anchor failure modes, the influence of the anchor head bearing pressure, and the magnitude of the compression load applied to the concrete member to affect crack closure.