Design of arbitrary anchor groups on concrete edge subjected to arbitrary shear load and torsional moment

Volume 7, Issue 2, April 2022     |     PP. 53-78      |     PDF (2800 K)    |     Pub. Date: June 24, 2022
DOI: 10.54647/cebc56087    76 Downloads     5398 Views  

Author(s)

Longfei Li, Dr. Li Anchor Profi GmbH, Gustav-Stoll-Weg 7, 72250 Freudenstadt, Germany
Yischang Li, Dr. Li Anchor Profi GmbH, Gustav-Stoll-Weg 7, 72250 Freudenstadt, Germany

Abstract
The design of anchor fastenings in concrete is dealt with in EN 1992-4 [1] only for simple anchor layouts (Figure 1). For fastenings with gap in the fixture near the edge under shear load towards to the edge, maximum of two anchors in a row parallel to the edge can be designed. In the case of fastenings under torsional moment, the resistance of the anchor group for the concrete edge failure mode cannot be calculated according to the current regulations [1-5] because the resulting anchor shear force in the group is equal to zero.
In order to extend the application range of fastenings beyond regulated simple anchor layouts, a design model for the failure mode of concrete edge failure for arbitrary anchor groups under arbitrary shear load and torsional moment is developed. The design model is verified by 30 test results.
In this paper, the design model is presented and explained with design examples.

Keywords
anchor design in concrete, anchor layout, clearance hole, edge, concrete edge failure

Cite this paper
Longfei Li, Yischang Li, Design of arbitrary anchor groups on concrete edge subjected to arbitrary shear load and torsional moment , SCIREA Journal of Civil Engineering and Building Construction . Volume 7, Issue 2, April 2022 | PP. 53-78. 10.54647/cebc56087

References

[ 1 ] EN 1992-4 Eurocode 2 — Design of concrete structures — Part 4 Design of fastenings for use in concrete, 2018
[ 2 ] ETAG 001, Annex C: DESIGN METHODS FOR ANCHORAGES, EOTA, 1040 Brussels, Amended October 2001
[ 3 ] EOTA TR029 Design of Bonded Anchors, Edition June 2007, EOTA, 1040 Brussels, Amended September 2010
[ 4 ] Technical specification CEN/TS 1992-4: Design of Fastenings for Use in Concrete, European Committee for Standardization, 2009
[ 5 ] fib bulletin 58: Design of anchorages in concrete, ISSN 1562-3610, July 2011
[ 6 ] Li, L.: Design of general anchor groups on an edge of concrete member subjected to shear load and torsional moment, Presentation on fib TG2.9 meeting, Helsinki May 2013
[ 7 ] Philipp R. Grosser, Load-bearing behavior and design of anchorages subjected to shear and torsion loading in uncracked concrete, Dissertation Universität Stuttgart 2012
[ 8 ] Li, L.: Required Stiffness of Base Plates subjected to Shear Loading, Presentation on fib TG2.9 web meeting, November 2021
[ 9 ] Third-party anchorage design software Anchor Profi 3.4.6, Dr. Li Anchor Profi GmbH, February, 2022