Article (Scientific journals)
Numerical study on design rules for minimum degree of shear connection in propped steel-concrete composite beams. (LAJ21.C)
Vigneri, Valentino; Odenbreit, Christoph; Romero, Alfredo
2021In Engineering Structures, 241
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Keywords :
Degree of shear connection; Composite construction; Shear connection
Abstract :
[en] This manuscript presents a numerical study on simply supported propped composite beams with ductile shear connectors subjected to uniformly distributed load. The aim is to assess the performance of the revised rules for the minimum degree of shear connection (CEN/TC250/SC4.T3) with respect to the occurring slip. First, a non-linear 3D finite element model was developed through the software ABAQUS 2017 and validated against analytical values of the elastic stiffness and plastic bending resistance. Then, 91 configurations were analysed for different degrees of shear connection η=0.2,0.4…1.0. The span ranges from 6 to 25 m while the geometrical and mechanical properties varied within their typical field of applicability. According to both current and revised rules, 16 configurations with relatively deep beam and “weak” concrete slab exhibited allowable slip values smax significantly higher than 6 m. Therefore, the authors proposed a reduction of the maximum degree of utilization to these special cases. If the proposed reduction is included in the revised rules, none of the considered cases exhibit a slip smax higher than 8 mm while few cases have smax between 6 and 8 mm. For the ease of use, a design proposal is reformulated as a conditional reduction of the plastic bending resistance of the composite section.
Disciplines :
Civil engineering
Author, co-author :
Vigneri, Valentino
Odenbreit, Christoph ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
Romero, Alfredo ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
External co-authors :
no
Language :
English
Title :
Numerical study on design rules for minimum degree of shear connection in propped steel-concrete composite beams. (LAJ21.C)
Publication date :
15 August 2021
Journal title :
Engineering Structures
ISSN :
0141-0296
eISSN :
1873-7323
Publisher :
Elsevier, Oxford, United Kingdom
Volume :
241
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Physics and Materials Science
Available on ORBilu :
since 15 May 2021

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