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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Design Method for Splitting Failure Mode of Adhesive Anchor Systems
Author(s): Jorg Asmus
Publication: Special Publication
Appears on pages(s): 1-14
Abstract:Adhesive anchor systems loaded by tension can fail in a splitting failure mode. Splitting failure of a concrete member can be expected if the member dimensions are relatively small or if the anchors are installed near to an edge or corner in large concrete members. The splitting failure load depends on dimensions, on material properties of the concrete member, and on the anchoring system. The corresponding splitting failure load may be smaller than the pullout or concrete cone failure load. In the last years, the load capacity of adhesive anchor systems was significantly increased and the range of the embedment depth was enlarged (hef = 4d to 20d). High performance adhesives have a high load-bearing capacity and are better able to utilize the concrete capacity. Therefore, the splitting failure mode has to be considered under certain admissible service conditions in the design of adhesive anchors. This paper presents a design method for splitting failure for different post-installed adhesive anchor systems and compares calculated splitting failure load with the results of experimental investigations. Details of the design method are given to illustrate how installation parameters (edge distance, member thickness, embedment depth and material properties) and the anchor types influence the splitting resistance. In addition, the critical distances for splitting failure for post-installed adhesive systems with high, medium, and low pullout (bond) capacity are discussed.
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