Behavior and Testing of Anchors in Simulated Seismic Cracks

Cast-in-place and post-installed anchors often are used to secure nonstructural elements and to connect new structural elements to existing structures. This study examines 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. The results of investigations to establish representative crack cycling conditions for anchors during an earthquake are summarized. New experimental tests with headed studs and four types of post-installed anchors under simulated seismic crack cycling conditions are then 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. These findings can be used as background in developing improved prequalification methods for anchors used in seismic regions.

  • Availability:
  • Authors:
    • Hoehler, Matthew S
    • Eligehausen, Rolf
  • Publication Date: 2008-5

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01104863
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 18 2008 10:35AM