Ancon Multijoint Brochure

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Ancon Multijoint Brochure CI/SfB (29) Et6 November 2010 MultiJoint System and Individual Plate Dowels For Ground Bearing Slabs This brochure is printed on paper produced from 80% recycled post-consumer fibre and 20% virgin pulp which is sourced from responsibly managed and sustainable forests (FSC certified). The printing inks and sealant are vegetable- based making the document fully recyclable. 2 Plate dowels have replaced plain round and square dowel bars as the preferred method of transferring load in industrial and commercial ground bearing floor slabs. Ancon designs and manufactures high integrity steel products for Ancon MultiJoint has built-in plate dowels and the construction industry. Through continuous programmes of is an all-in-one solution to load transfer, concrete contraction, armoured edge new product development, inward investment and employee protection and formwork. It is complemented advancement, the company is committed to maintaining the by a range of individual rectangular plate dowels housed in innovative, high strength highest level of customer service within a dynamic and plastic, tapered sleeves. challenging industry. Masonry Support Systems Concrete Floor Contraction Joints 4 Introduction to Ancon Systems 4 Lintels MultiJoint 5-7 Individual Plate Dowels 8-9 Masonry Reinforcement Installation Guidance 10-11 Other Ancon Products 11 Windposts and Parapet Posts Wall Ties and Restraint Fixings Channel and Bolt Fixings ISO 9001: 2008 Tension and Compression Systems FM 12226 Insulated Balcony Connectors Shear Load Connectors ISO 14001: 2004 Punching Shear Reinforcement EMS 505377 Reinforcing Bar Couplers Reinforcement Continuity Systems Stainless Steel Fabrications OHSAS 18001: 2007 OHS 548992 Flooring and Formed Sections Ancon product information Refractory Fixings is available in NBS format for easy insertion into a NBS specification 3 MultiJoint and Individual Plate Dowels Ancon MultiJoint Technical and Sales Support Ancon designs and manufactures a wide range of engineered dowel systems for use at FLOOR CONTRACTION JOINTS concrete expansion and contraction joints. The function of a free contraction joint is to The company is a allow concrete shrinkage to take place. member of the Although the majority of movement as the Concrete Society, concrete contracts is perpendicular to the joint, Construct concrete some relative movement between adjacent structures group and bays will also occur along the line of the joint. the Association of Concrete Industrial It is therefore vital that dowels allow for ANCON PLATE DOWEL SYSTEMS Flooring Contractors. movement in both directions to avoid The Ancon range is suitable for use in ground unnecessary stresses to develop in the slab bearing concrete floor slabs. Load transfer Ancon will advise on and ultimately cracking. performance is improved when dowels are the most cost-effective Today’s concrete floor designs have fewer used in fibre reinforced concrete, when and practical dowel joints than those in the past. With greater compared to plain or fabric reinforced system for the design distance between joints, good joint detailing concrete. load, final joint width and slab construction is essential to avoid expensive, premature MultiJoint details of individual concrete floors. Technical maintenance. Ancon MultiJoint is an all-in-one solution to enquiries should be sent to [email protected]. Plate Dowels load transfer, concrete contraction, armoured Carbon steel plate dowels are now common in edge protection and formwork. It is ideal for Ancon has a dedicated sales team for the industrial and commercial concrete floor use in factories, warehouses, distribution concrete sector. Email [email protected] construction. They have replaced debonded centres and other applications where floor or call +44 (0) 114 275 5224 for sales support. round and square dowel bars as the preferred slabs are subject to high loads and wheeled Material method of accommodating movement and traffic. Its use can minimise slab depth, saving All steel shown in this literature is plain carbon transferring load. Being wider than dowel bars, time and materials, and prevent uneven vertical steel. For galvanised steel or stainless steel the bearing stresses between steel and settlement between slabs (pages 5-7). products please contact Ancon. concrete are reduced so greater loads can be Individual Plate Dowels carried using plate dowels and, being shorter, In addition to the MultiJoint system, Ancon Further Reading they provide improved site access at the joint also manufactures a range of individual before the concrete is poured. Technical Report No.34 (TR34) 3rd edition, rectangular plate dowels, housed in innovative, Concrete Industrial Ground Floors – Early plate dowel design was based on the high strength plastic sleeves. These dowels A Guide to Design and Construction North American market where thin tapered can be used where arris protection is not This document offers guidance on the dowels, typically 6mm thick, were developed. required or as part of a site-assembled system design of internal concrete floors which are It is generally acknowledged that this design of with the patented MultiJoint top profile if a outside the scope of EN 1992-1-1: 2004 plate dowel is inadequate in the joint widths in steel joint edge is required (pages 8-9). (Eurocode 2). today’s applications. The load transfer performance reduces at a faster rate with a BS8204-2: 2002 Screeds, tapered plate dowel than with a rectangular bases and in-situ floorings plate dowel. – Concrete wearing surfaces – This code of practice requires that metal armouring be considered for all free contraction joints in heavy duty applications. Ancon Individual 4 Plate Dowels Tel: +44 (0) 114 275 5224 Web: www.ancon.co.uk ANCON MULTIJOINT Joint edge protected by two 12mm Stud provides anchorage The MultiJoint system is an all-in-one solution square-edged profiled and resists rotation and to load transfer, concrete contraction, steel strips vertical movement armoured edge protection and formwork in ground bearing floor slabs. It is a prefabricated Reinforcing bar welded to Sleeve allows lateral and steel system supplied in a standard three anchors for added rigidity longitudinal movement metre unit length and is available in four heights to suit slab depths from 150mm. Plate dowel transfers shear load between adjoining slabs Integral leave-in place Units are simply lapped end-to-end on site. steel formwork A unique patented top rail transfers load into Cross-section view the concrete at an angle, to avoid localised cracking. Prefabricated corner units provide continuity in joint arris protection at the most vulnerable area of the slab. Standard four-way and three- way profiles are available, with non-standard intersections manufactured on request. See page 6 for dimensions. Tabulated performance data is shown on page 7 for a slab depth up to 350mm and a joint width up to 40mm. Plan view System Components Rectangular plate dowels pass through the steel formwork and are housed in moulded plastic sleeves. The number and dimensions of the plate dowels have been engineered to provide the most effective combination of concrete and steel resistance for load transfer. Dowel centres are 600mm. The sleeves allow lateral and longitudinal movement. The top profile comprises two square-edged 12mm wide steel strips which provide heavy- duty joint edge protection. The unique, patented design creates a sharp joint edge Unique, Square-Edged Profile and transfers impact loads into the concrete at Patent No. EP1756367 a 45˚ angle to avoid localised cracking. The nylon fasteners, used to link the back-to- back profiles, strip as the joint opens allowing concrete contraction to take place. Studs are welded at 225mm horizontal centres to provide anchorage in the concrete, resisting rotation and vertical movement as load is applied. A rebar is welded to the studs on one side of the unit for extra rigidity and ease of handling. Specification Clause Delete italicised text as necessary. Ancon MultiJoint in a traditionally reinforced slab Armoured contraction joints to be showing fabric reinforcement mesh MultiJoint MJ-SL80 / MJ-SL110 / MJ-SL130 / MJ-SL160 from Ancon Building Products. 5 MultiJoint and Individual Plate Dowels DIMENSIONS Standard MultiJoint Unit 24 mm Unit Height MJ-SL80 / MJ-SL110 MJ-SL130 / MJ-SL160 Unit length 3000mm Dowel Centres 600mm Side View Plan View 24 Standard T and X MultiJoint Intersections mm Unit Height 620mm 1240mm Side View 620mm 12mm 620mm 620mm 620mm 620mm 12mm Plan View MultiJoint Unit Unit Slab Depth Dowel Compatible Intersections Reference Length Height Min Max Centres T Junction Ref X Junction Ref MJ-SL80 3000mm 140mm 150mm 200mm 600mm MJ-SL80-T MJ-SL80-X MJ-SL110 3000mm 190mm 200mm 250mm 600mm MJ-SL110-T MJ-SL110-X MJ-SL130 3000mm 240mm 250mm 300mm 600mm MJ-SL130-T MJ-SL130-X MJ-SL160 3000mm 290mm 300mm 350mm 600mm MJ-SL160-T MJ-SL160-X Non-standard heights can be manufactured for deeper slabs. 6 Tel: +44 (0) 114 275 5224 Web: www.ancon.co.uk PERFORMANCE Please contact Ancon for applications outside the parameters shown in these tables. Plain / Traditionally Reinforced Concrete Design Resistance (kN/m) for Various Joint Widths (mm) and Slab Depths (mm) using C32/40 Concrete Slab Depth Joint Widths (mm) Ref(mm)510152025303540 150 53.7 53.7 53.7 53.7 53.0 52.3 51.6 50.9 160 56.0 56.0 56.0 56.0 55.3 54.6 53.9 52.2 170 56.0 56.0 56.0 56.0 55.3 54.6 53.9 53.2 MJ-SL80 180 56.0 56.0 56.0 56.0 55.3 54.6 53.9 53.2 190 56.0 56.0 56.0 56.0 55.3 54.6 53.9 53.2
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