COMPOSITE SLABS AND BEAMS USING STEEL DECKING: BEST PRACTICE FOR DESIGN AND CONSTRUCTION
118Pages

cyan plate magenta plate yellow plate black plate MCRMA Technical Paper No. 13 SCI Publication P300 CI/SfB REVISED EDITION Composite Slabs and Beams Using Steel Decking: Best Practice for Design and Construction TEL: 0151 652 3846 FAX: 0151 653 4080 www.mcrma.co.uk THE STEEL CONSTRUCTION INSTITUTE SILWOOD PARK ASCOT BERKSHIRE SL5 7QN TEL: 01344 636525 FAX: 01344 636570 www.steel-sci.org REVISED EDITION MCRMA 18 MERE FARM ROAD PRENTON WIRRAL CHESHIRE CH43 9TT (23) Nh2 MARCH 2009 COMPOSITE SLABS AND BEAMS USING STEEL DECKING: BEST PRACTICE FOR DESIGN AND CONSTRUCTION THE METAL CLADDING & ROOFING MANUFACTURERS ASSOCIATION in partnership with THE STEEL CONSTRUCTION INSTITUTE

SCI (The Steel Construction Institute) is the leading, independent provider of technical expertise and disseminator of best practice to the steel construction sector. We work in partnership with clients, members and industry peers to help build businesses and provide competitive advantage through the commercial application of our knowledge. We are committed to offering and promoting sustainable and environmentally responsible solutions. Our service spans the following five areas: Membership Individual and corporate membership Technical information Courses and Education Publications Online...

MCRMA Technical Paper No. 13 SCI Publication No. P300 Composite Slabs and Beams using Steel Decking: Best Practice for Design and Construction (Revised Edition) J W Rackham BSc (Build Eng), MSc, DIC, PhD, CEng, MICE G H Couchman MA, PhD, CEng, MICE S J Hicks B Eng, PhD (Cantab) Published by: The Metal Cladding & Roofing Manufacturers Association in partnership with The Steel Construction Institute

2009 The Steel Construction Institute and The Metal Cladding & Roofing Manufacturers Association Apart from any fair dealing for the purposes of research or private study or criticism or review, as permitted under the Copyright Designs and Patents Act, 1988, this publication may not be reproduced, stored or transmitted, in any form or by any means, without the prior permission in writing of the publishers, or in the case of reprographic reproduction only in accordance with the terms of the licences issued by the UK Copyright Licensing Agency, or in accordance with the terms of licences...

Composite construction has proven popular because it combines structural efficiency with speed of construction to offer an economic solution for a wide range of building types. Applications include commercial, industrial and residential buildings. This guide covers the design and construction of composite slabs and beams, and addresses the good practice aspects of these activities. It updates the previous MCRMA/SCI guide, which was published in 2000. The update reflects the latest guidance for good practice and gives information on design to the Eurocodes, but omits most of the advice given...

1.1 Benefits of composite construction 2 1.3 Scope of this publication 3 2 THE DESIGN AND CONSTRUCTION TEAM 4 2.2 Roles in design and construction 5 2.3 Design and construction sequences 8 4 DESIGN OF DECKING AND SLABS 15 5 DESIGN OF COMPOSITE BEAMS 54 6 CONSTRUCTION PRACTICE - CONCRETE 75 6.1 Concrete supply design 75 6.3 Loads on the slab during and after concreting 81 7 SLIM FLOOR CONSTRUCTION 85

SUMMARY This guide covers the design and construction of composite floors, paying particular attention to the good practice aspects. Following a description of the benefits of composite construction and its common applications, the roles and responsibilities of the parties involved in the design and construction process are identified. The requirements for the transfer of information throughout the design and construction process are described. The design of composite slabs and beams is discussed in detail in relation to the Eurocodes and BS 5950. In addition to general ultimate and...

1 INTRODUCTION Composite slabs consist of profiled steel decking with an in-situ reinforced concrete topping. The decking not only acts as permanent formwork to the concrete, but also provides sufficient shear bond with the concrete so that, when the concrete has gained strength, the two materials act together compositely. Composite beams are normally hot rolled or fabricated steel sections that act compositely with the slab. The composite interaction is achieved by the attachment of shear connectors to the top flange of the beam. These connectors generally take the form of headed studs. It...

1.1 Benefits of composite construction Composite construction has contributed significantly to the dominance of steel frames in the commercial building sector in the UK. The main benefits of composite construction are: Speed of construction Bundles of decking can be positioned on the structure by crane and the individual sheets then installed by hand. Using this process, crane time is minimal, and in excess of 400 m2 of decking can be installed by one team in a day, depending on the shape and size of the building footprint. The use of the decking as a working platform speeds up the...

building. Further information on sustainability of composite flooring systems is given in Composite Flooring Systems: Sustainable construction solutions[1]. Easy installation of services Cable trays and pipes can be hung from hangers that are attached using special ‘dovetail’ recesses rolled into the decking profile, thereby facilitating the installation of services such as electricity, telephone and information technology network cabling. These hangers also allow for convenient installation of false ceilings and ventilation equipment (see Section 4.2.8). The above advantages (detailed in...

2 THE DESIGN AND CONSTRUCTION TEAM The aim of this Section is to identify typical activities and responsibilities for the team members involved in the design and construction of a building using composite components. Clearly, the precise delegation of responsibilities will depend on the details of the contract for a specific project, with which all parties need to be familiar. As an overriding principle, the CDM Regulations[4] state that ‘Every person on whom a duty is placed by these Regulations in relation to the design, planning and preparation of a project shall take account of the...