Vol. 3, No. 2, pp. 594-606(2007)
DESIGNING COMPOSITE BEAMS WITH PRECAST HOLLOWCORE SLABS TO EUROCODE 4
D. Lam
Senior Lecturer, School of Civil Engineering, University of Leeds, Leeds, LS29JT, UK
(Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 15 November 2005; Revised: 26 January 2007; Accepted: 1 February 2007
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ABSTRACT
The design of multi-storey buildings in the UK, in the past, considered steel and concrete structures in isolation. Today, designers utilize the combined properties of steel and concrete in the form of composite or hybrid structures as a more attractive efficient alternative. Designers of steel structures acknowledge that the presence of concrete slabs may be designed compositely with steel beams in order to increase both flexural strength and stiffness at virtually no extra cost, except for the headed shear studs. The use of composite construction with precast hollowcore slabs has become one of the most popular construction methods in the UK. Currently, design of composite construction is covered by BS5950, Part 3, but will soon be replaced by the new European Standard, Eurocode 4. However, design of composite construction with precast hollowcore slabs is currently outside the provisions of this new code. In this paper, an overview of the Eurocode 4 structure and its contents are first presented and some of the particular issues that affect this new form of construction will be given. Design guidance using the Eurocode methodology will also be presented.
KEYWORDS
Eurocode 4; composite design; precast; hollowcore; steel; connection design; moment capacity; effective length
REFERENCES
[1] BS5950, Part 3, Structural Use of Steelwork in Building – Design in Composite Construction, British Standards Institution, London, 1990.
[2] EN1994-1-1, Eurocode 4: Design of Composite Steel and Concrete Structures: Part 1.1: General rules and rules for buildings, British Standards Institution, London, 2004.
[3] EN1990, Eurocode – Basis of Structural Design, British Standards Institution, London, 2002.
[4] EN1991, Eurocode 1 – Actions on Structures, British Standards Institution, London, 2002.
[5] EN1992-1-1, Eurocode 2 – Design of Concrete Structures, British Standards Institution, London, 2004.
[6] EN1993-1-1, Eurocode 3 – Design of Steel Structures, British Standards Institution, London, 2005.
[7] Lam, D., “New Test for Shear Connectors in Composite Construction”, United Engineering Foundation Conference, Composite Construction in Steel and Concrete IV, Banff, Alberta, Canada, 2000, pp. 404-414.
[8] Lam, D., Elliott, K.S. and Nethercot, D.A., “Experiments on Composite Steel Beams with Precast Concrete Hollow Core Floor Slabs”, Proceedings of the Institution of Civil Engineers: Structures and Buildings, 2000a, Vol. 140, pp. 127-138.
[9] Lam, D., Elliott, K.S. and Nethercot, D.A., “Parametric Study on Composite Steel Beams with Precast Concrete Hollow Core Floor Slabs”, Journal of Constructional Steel Research, 2000b, Vol. 54, No. 2, pp. 283-304.
[10] Murad, A. and Lam, D., “Experimental Study of Long Span Composite Beams with Precast Hollow-Core Slabs”, Eurosteel, 4th European Conference on Steel and Composite Construction, Maastricht, 2005.
[11] EN1993-1-8, Eurocode 3 – Design of Steel Structures, Part 8: Design of Joints, British Standards Institution, London, 2005.
[12] Lam, D and Fu, F., “Behaviour of Composite Steel Beams with Precast Hollow Core Slabs in Hogging Moment Regions”, 4th International Conference on Advances in Steel Structures, Shanghai, China, 2005.