beams & girders; composite structures design methods & aids
Résumé :
[en] The use of steel–concrete composite beams in which wide-flanged steel beams act compositely with a concrete or steel–concrete composite slab above is well established in building construction. However, for composite beams with low degrees of shear connection between the beam and slab, significant additional deflections can occur due to slip in the shear connectors. A design formula is presented for the effective stiffness of composite beams taking account of the stiffness of the shear connectors, which is compared to measured deflections of six symmetric composite beams and an 11 m span composite beam of asymmetric profile. It is shown that...
Disciplines :
Ingénierie civile
Auteur, co-auteur :
Lawson, R.Mark
Lam, Dennis
Eleftherios, Aggelopoulos
Nellinger, Sebastian
Autre collaborateur :
ODENBREIT, Christoph ; University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
Co-auteurs externes :
yes
Langue du document :
Anglais
Titre :
Serviceability performance of steel–concrete composite beams. (LAJ16 Lawson)
Date de publication/diffusion :
23 janvier 2017
Titre du périodique :
Proceedings of the Institution of Civil Engineers : Structures and Buildings
AISC (American Institute of Steel Construction) (2010) AISC 360-10: Specification for Structural Steel Buildings, Manual of Steel Construction. American Institute of Steel Construction, Chicago, IL, USA.
Aribert JM (1997) Analyse et formulation pratique de l’influence de la nuance de l’acier du profile sur le degree minimum de connexion partielle d’une poutre mixte. Construction Métallique 3(3): 39–55 (in French).
BSI (1990) BS 5950: Structural use of steelwork in buildings, Part 3 design in composite construction. Section 3.1: Code of practice for design of simple and continuous composite beams, 1990 including amendments 2010. BSI, London, UK.
BSI (2004) BS EN 1994-1-1: Eurocode 4: Design of composite steel and concrete structures, Part 1.1 General rules and rules for buildings. BSI, London, UK.
BSI (2005) BS EN 1993-1-1: Eurocode 3: Design of steel structures, Part 1.1 General rules and rules for buildings. BSI, London, UK.
Couchman G (2015) Minimum Degree of Shear Connection Rules for UK Construction to Eurocode 4. The Steel Construction Institute, Ascot, UK, Electronic Publication 405.
Johnson RP and Molenstra N (1991) Partial shear connection in composite beams for buildings. Proceedings of the Institution of Civil Engineers, Part 2 91(4): 679–704, http://dx.doi.org/10.1680/iicep.1991.17485.
Lam D, Elliott KS and Nethercot DA (2000) Designing composite steel beams with precast concrete hollow-core slabs. Proceedings of the Institution of Civil Engineers – Structures and Buildings 140(2): 139–149, http://dx.doi. org/10.1680/stbu.2000.140.2.139.
Nethercot DA, Li TQ and Ahmed B (1998) Plasticity of composite beams at the serviceability limit state. The Structural Engineer 76(12): 289–293.
Newmark NM, Siess CP and Viesst IM (1951) Tests and analysis of composite beams with incomplete shear connection. Proceedings of the Society for Experimental Stress Analysis 9(1): 75–92.
Qureshi J, Lam D and Ye J (2011a) Effect of shear connector spacing and layout on the shear connector capacity in composite beams. Journal of Constructional Steel Research 67(4): 706–719.
Qureshi J, Lam D and Ye J (2011b) The influence of profiled sheeting thickness and shear connector’s position on strength and ductility of headed shear connector. Engineering Structures 33(5): 1643–1656.
Ranzi G and Zona A (2007) A steel–concrete composite beam model with partial interaction including shear deformability of the steel component. Engineering Structures 29(11): 3026–3041.
Ranzi G, Bradford M and Uy B (2003) A general method of analysis of composite beams with partial interaction. Steel and Composite Structures 3(3): 169–184.
SCI (The Steel Construction Institute) (2003) RT 1309: Resistance of Headed Stud Shear Connectors in CF 60 and CF 80 Decking Profiles (Confidential Report to Sponsor). The Steel Construction Institute, Ascot, UK.
SCI (2010) NCCI: Modified Limitation on Partial Shear Connection in Beams for Buildings, PN002a-GB 2010. The Steel Construction Institute, Ascot, UK.
Weerasinghe MD and McConnel RE (1999) Load Testing of Two UBA Composite Beams. The Steel Construction Institute and University of Cambridge, Cambridge, UK.
Wright HD and Francis RW (1990) Tests on composite beams with low levels of shear connection. The Structural Engineer 68(15): 293–298.
