Large‐diameter post‐installed bonded fasteners in very low compressive strength concrete

This paper describes tests performed with large, post‐installed bonded fasteners installed in concrete of very low compressive strength. Concrete with several strengths were studied, including strength classes under C20/25. The goal was to determine whether such connections could be designed accordi...

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Bibliographic Details
Published inStructural concrete : journal of the FIB Vol. 22; no. 6; pp. 3574 - 3588
Main Authors Guillet, Thierry, Degiovanni, Pierre Jean, Bruchet, Etienne, Al‐Mansouri, Omar, Vannier, Mickael
Format Journal Article
LanguageEnglish
Published Weinheim WILEY‐VCH Verlag GmbH & Co. KGaA 01.12.2021
Wiley Subscription Services, Inc
Subjects
anchors
Bearing capacity
bonded fastener
Bonding strength
Compressive strength
Concrete
design
edge distance
embedment
EN 1992‐4
Fasteners
shear
splitting
tension
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Summary:This paper describes tests performed with large, post‐installed bonded fasteners installed in concrete of very low compressive strength. Concrete with several strengths were studied, including strength classes under C20/25. The goal was to determine whether such connections could be designed according to EN 1992‐4, as they deviate from the scope of this standard by the fact that the concrete is outside the permissible compressive strength range. Additionally, these tests aimed to cover the knowledge gap regarding bonded fasteners installed with large‐diameter threaded rods, deep embedment depths, and reduced edge distances, since little research has been done in this area. Tests on single fasteners and on a group of four anchors were performed, and the results were compared with the design values calculated according to EN 1992‐4. Conclusions have been drawn, and possible underestimation of the load‐bearing capacity of such anchorages has been quantified.
Bibliography:Discussion on this paper must be submitted within two months of the print publication. The discussion will then be published in print, along with the authors’ closure, if any, approximately nine months after the print publication.
ISSN:1464-4177
1751-7648
DOI:10.1002/suco.202000675