TIMBER-CONCRETE COMPOSITE FLOORS
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Catalog excerpts

TIMBER-CONCRETE COMPOSITE FLOORS - 1

TIMBER-CONCRETE COMPOSITE FLOORS Shear Stud Connectors With Crampons ®

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TIMBER-CONCRETE COMPOSITE FLOORS - 2

MODERN STRENGTHENING SYSTEMS THE SOLUTION TO A PROBLEM Old timber floors often need strengthening and stiffening as they were designed to bear moderate loads and almost always suffer from excessive deflections with respect to current requirements. To be sufficiently strong and stiff, new timber floors must be made with higher beams. In both cases, it is possible to lay a thin concrete slab, adequately reinforced and connected, over the existing structure either to strengthen and stiffen existing timber floors or to allow lower beams to be used to build new floors. The connector can also be...

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TIMBER-CONCRETE COMPOSITE FLOORS - 3

TECNARIA CONNECTORS: APPLICATIONS Dowel and crampons connectors are very easy to install; they neither require skilled workmanship nor special site conditions. Installing them is as simple as tightening two screws! Connectors can either be fixed directly to the beam or to floorboards. A sheet of waterproof material should be laid under the connectors before casting the concrete. When working with hardwood predrilling is necessary (6 mm diameter for "BASE" connectors with 8 mm screws) 8 mm diameter holes must always be prepared for "MAXI" connectors with 10 mm diameter screws. A suitably...

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TIMBER-CONCRETE COMPOSITE FLOORS - 4

FLOOR TYPES DOUBLE-FRAME FLOORS These drawings and other construction details can be downloaded from the Tecnaria Internet site www.tecnaria.com. SINGLE-FRAME FLOORS

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TIMBER-CONCRETE COMPOSITE FLOORS - 5

BASE connector base plate 50 x 50 x 4 mm screws Ø 8 mm Specifications: dowel connector comprising a 50x50x4 mm base plate with crampons and two holes for 8-mm diameter coach screws with tapered necks, and a 12 mm diameter zinc coated dowel, cold-swaged to the plate. Available dowel heights: 30, 40, 60, 70, 80, 105, 125, 150, 175 and 200 mm. Available screw lengths: 70, 100 and 120 mm Mechanical properties of Tecnaria Connectors according to Eurocode 5 EN1995-1-1:2008. Processing of laboratory data as Avis Technique 3/09-603 Connector Thick Strength classes of Characteristic resistance...

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TIMBER-CONCRETE COMPOSITE FLOORS - 6

CALCULATION SOFTWARE: a precious aid for designers Tecnaria offers designers a useful design tool: a calculation programme for rapidly dimensioning composite timber-concrete floors with dowel and crampon connectors. It can be downloaded free of charge from www.tecnaria.com A factor that must be taken into consideration when determining the size of composite timber-concrete floors is the deformability of the connection system. Both Eurocode 5 and DIN 1052 (Möhler theory) contain a method based on this hypothesis. The calculation programme developed by Tecnaria is based on the method...

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