Lattice Plate Flooring

Lattice Plate Flooring

Introduction Pekso Precast manufacturers and supplies a range of precast concrete structural building products ranging from foundations and flooring systems that includes Lattice Plate Flooring. The Lattice Plate Flooring production facility is one of the most modern precast flooring production facilities in Europe. The Pekso Precast factory has the capacity to produce up to 1,000,000m 2 of specifically designed Lattice Plate Flooring which is supplied throughout the UK and Northern Europe. Pekso Precast Lattice Plate Flooring (Omnia) The Lattice Plate Flooring system combines the speed of precast concrete construction with the convenience and flexibility of hybrid concrete design. The Lattice Plate Floor panels are supplied in variable lengths in consultation with our design department spans of up to 10,500mm are available. The standard width is 2,400mm, but can be varied as many contracts require a proportion of specifically manufactured non-standard widths. The thickness varies and is normally 50, 60 or 70mm deep depending on the design requirements. The Lattice Plate Flooring suits most building types: hospitals, student accommodations, schools, prisons, multi-storey car parks, hotels, residential and commercial. The automated production process uses CAD / CAM / Allplan systems to ensure both the accuracy of the dimensions and the precise positioning of openings for electrical and other services. Design can be part of the overall Building Information Modelling (BIM).

Lattice girder reinforcement The reinforcement is assembled and welded in the factory to form a certified mesh consisting of the integrated reinforcement sections. The lattice girders are designed to provide the required structural support to the Lattice Plate Flooring before the in-situ concrete is poured and also supports the upper reinforcement mesh. The protruding triangular reinforcement is used as the lifting points when unloading from the delivery vehicles and for placing each precast element into its final position. The installation of Lattice Plate Flooring requires the use of temporary supports. The number of props required is determined by the load / span criteria and the thickness of the top bar reinforcement. In consultation with the Pekso Precast design team a choice can be made with the lattice girders having heavier top bars combined with additional lattice girders per width of the Lattice Plate Flooring panel. This variation enables a reduction of the propping layout which will give an overall cost saving on the installation. Delivery The delivery sequence of the Lattice Plate Flooring can be agreed with the client. The deliveries can be just in time, in accordance with the scheduled requirements reducing the quantity of Lattice Plate Flooring units required to be stored on site. The panels are loaded onto each delivery vehicle in the specified placement sequence to reduce the necessity of double handling. If required Pekso Precast can provide experienced site supervision for the first deliveries.

Technical Information Standard sized reinforced Lattice Plate Flooring elements with the following features: Dimensions Width: standard 2,400mm. Thickness: 50-60-70mm Non-standard panels manufactured to meet design requirements. Length: standard production variable up to 9,000mm. Special panels up to 10,500mm can be produced in consultation with our design department. In most cases Lattice Plate Flooring will require propping. The propping centres are normally stipulated by Pekso Precast. However, in some circumstances subject to the design criteria propping is not required. Pekso can work with 3D design and embraces the BIM Concept. Pekso Precast offer early stage design and a full estimating service Other features Concrete strength: the standard is C28/35 however greater strengths can be used if necessary for specific requirements. The connection: the panels are double chamfered along two edges forming an arris edge detail which almost eliminates any grout loss. The upper surface is roughened to obtain a complete bond with the in-situ capping layer. Openings can be pre-formed in polystyrene or cellular concrete with a minimum size of 100 x 100mm. Other sizes are available in multiples of 50mm. Dimensional tolerances are in accordance with the relevant BS/Eurocode. The soffit finish is of a very high quality, allowing direct decoration thus eliminating the need for plasterwork. The design can incorporate a symmetrical joint layout per room width. The Lattice Plate Flooring panels can be used in conjunction with the Pekso Precast Twin Wall building system.

Standard details Bearing on steelwork Minimum 50mm bearing Shelf angle Bearing on in-situ concrete Half-cast beam <50mm option Bearing on masonry Plate Floor retaining edge Continuous Plate Floor span

Advantages of Lattice Plate Flooring: The diagram below is a 3D representation of the Lattice Plate Flooring, with a summary of various (numbered) design features. These numbered benefits relate to the specific details with the same number. Design flexibility (1) Floor openings can be preformed in polystyrene or cellular concrete. (2) Lattice girder design flexibility can used to modify the propping layout. (3) Irregular shape floor shapes can be designs to eliminate additional on site work. Complete Design Flexibility. Progressive Collapse design achievable to meet various category requirements. Composite lattice plate flooring can be designed to provide diaphragm action to transmit horizontal forces. Two-way spanning design available giving decreased floor thicknesses. Lattice Plate Floor panels are 2,400mm wide. Non standard widths also available. 1 hour fire resistance on Lattice Plate Floor. Up to 4 hours achievable with subject to design. The final floor meets the highest standards of sound regulations. Lattice Plate Flooring can suit most building types. Can be used with almost all types of construction. In-situ, precast frames, steel frames and traditional construction. Durability of precast reinforced concrete. Forms part of a thermal mass structure. Void formers can be included to reduce weight and in-situ concrete.

Finishes High quality soffit finish, suitable for direct painting. Flat soffits achieved, unlike prestressed types of flooring. Chamfered edge arris detail giving tight joints, and almost eliminates any grout loss. Build programme benefits (4) Cast in sockets can be placed into plate floor to receive safety handrails, giving immediate protection on the floor zone once placed which satisfies health & safety requirements. Pre-design M&E services and apertures can be inserted at manufacturing stage creating substantial savings on site: (5) Central electrical conduit boxes (6) Built-in opening for mechanical ventilation (7) The pipe work suitable for concrete core activation can be incorporated as part of the manufacturing process. Speed of installation 500m 2 per day achievable. Immediate working platform is created. Virtually eliminates the need for on site formwork. Metal edge shutters can be cast into floor panel to receive concrete topping. Can be used in conjunction with Pekso Precast Twin Wall and Box Beam system giving even greater construction benefits. Lattice girder reinforcement used as lifting points eliminating damage of the Lattice Plate Floor edges. Just-in-time deliveries available eliminating the requirement for site storage on site.

Paradise Street, Liverpool Pekso Precast UK Office - Euromin Ltd Maritime House Basin Road North Hove East Sussex BN41 1WR 01273 704970 01273 704971 sales@euromin.co.uk www.euromin.co.uk Head Office Sales Postbus 19 4530 AA Terneuzen The Netherlands 0031 (0)115 68 09 11 0031 (0)115 61 32 42 info@peksoprecast.co.uk www.peksoprecast.co.uk