Article (Scientific journals)
Modified strut and tie model of headed stud shear connectors in open trough profiled sheeting for predicting the post cracking load bearing resistance. (LAJ21.D)
Vigneri, Valentino; Odenbreit, Christoph; Lam, Dennis et al.
2021In ce/papers, 4 (2-4), p. 627 - 634
Peer reviewed
 

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Keywords :
Headed stud; Shear connector; Strut and Tie model; Mechanical model; Analytical equations
Abstract :
[en] Current EN 1994-1-1 provides statistically calibrated equations for predicting the strength of headed stud shear connectors in profiled steel sheeting. Recent tests showed that the design re-sistance is overestimated for some novel open trough decks. A mechanical model was developed within the RFCS Project DISCCO [3] that considers “stud in bending” component and the elastic bending resistance of the concrete rib separately (1-2 mm slip). However, to represent the behav-iour of the connector in the post-cracking stage (2-6 mm), a “Modified Strut and Tie” model was developed with the support of experimental and numerical results. The concrete and the steel deck were replaced by a system of strut and tie elements whereas the stud was considered as a beam with one or two plastic hinges. In accordance with test observations, the authors assumed that the resistance of the model is limited by the capacity of the strut in front of the stud estimated through an analogy with RC corbels. The analytical resistance of the system was finally derived and compared with the results of 193 push-out tests: the statistical evaluation delivered a corre-lation coefficient of 0.81 and a coefficient of variation of 0.15.
Disciplines :
Civil engineering
Author, co-author :
Vigneri, Valentino;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering
Odenbreit, Christoph ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
Lam, Dennis;  University of Bradford
Hanus, François;  ArcelorMittal, Luxembourg
External co-authors :
yes
Language :
English
Title :
Modified strut and tie model of headed stud shear connectors in open trough profiled sheeting for predicting the post cracking load bearing resistance. (LAJ21.D)
Publication date :
September 2021
Journal title :
ce/papers
Volume :
4
Issue :
2-4
Pages :
627 - 634
Peer reviewed :
Peer reviewed
Funders :
ArcelorMittal Global R&D, Long Products, Luxembourg
Available on ORBilu :
since 25 February 2023

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