Behavior and Design of Adhesive Anchors Under Sustained Load


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Title: Behavior and Design of Adhesive Anchors Under Sustained Load

Author(s): Rolf Eligehausen, Ronald Blochwitz, and Werner Fuchs

Publication: Special Publication

Volume: 283


Appears on pages(s): 1-14

Keywords: Adhesive anchors, sustained load, creep, design

Date: 3/1/2012

Adhesive anchors are used worldwide for structural and non-structural connections. Because their structural behavior is influenced by many factors, adhesive anchors must be prequalified. In the US this is done according to ICC-ES AC308 and ACI 355.4-10. Design provisions for bonded anchors are stated in ICC-ES AC308 and the ACI 318-11, Appendix D. Only prequalified adhesive anchor systems are covered by the ACI Standard. In this paper the testing procedure, assessment criteria and design provisions with respect to sustained tension loading are described and – based on test results – the validity of the design provisions is discussed. It is concluded, that adhesive anchors qualified according to ACI 355.4-10 and designed according to the ACI 318-11, Appendix D can safely be used to resist sustained tension loading provided that they are installed properly. The design provisions given in ICC-ES AC308 and ACI 318-11, Appendix D should be applied to all anchors that must resist sustained tension loads and not only to anchors installed overhead.