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A steel and timber composite floor construction

The extension is of dry construction. The floor is supported on a grid of 178 x 102mm universal beams at 2.5m centres onto which spans a 100mm deep PMF trapezoidal profiled deck, of the type normally used for roof construction. Each deck trough was fixed to the beam flanges with self-tapping screws to form a rigid connection between deck and framework. The deck troughs were then filled with extruded polystyrene battens formed to precisely match the trough profile, in-filling each trough ...

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