Steel Buildings in Europe

Part 2: Concept Design 2 - 43 6.0m 6.0m 3.0m 3.0m 3.0m 3.0m 7.5m 6.0m 1 1 4 7 5 6 3 2 2 IPE A 360 S235 IPE 220 IPE 220 IPE A 330 S235 IPE O 360 S235 P1 IPE A 360 S235 IPE 300 S235 IPE 300 S235 IPE 270 S235 IPE 270 S235 IPE 270 S235 IPE 270 S235 IPE 270 S235 IPE 450 S235 IPE 400 S235 IPE 400 S235 IPE 300 S235 IPE 300 S235 HEA 220 S355 HEA 220 S355 HEA 240 S355 HEA 220 S355 HEA 240 S355 HEA 220 S355 HEA 240 S355 HEA 220 S355 HEB 220 S355 HEA 240 S355 HEA 220 S355 HEA 240 S355 HEA 220 S355 HEA 220 S355 HEA 240 S355 HEA 220 S355 HEA 240 S355 HEA 220 S355 1. Side bracing 2. Slab 3. Wall bracing 4. Stairs 5. Lifts and toilets 6. Void 7. Gable end Figure 5.3 Short-span composite beam – example of floor steelwork arrangement for 4-storey rectangular plan building 5.2.3 Services integration Heating and ventilation units can be positioned between beams, but ducts will generally pass below shallow beam s. Typically, for the 7,5 m  6 m floor grid shown above, the overall floor zone is 1100 mm to 1200 mm allowing for 150 mm raised floor and 400 mm deep air conditioning ducts below the beams. The overall floor zone is illustrated in Figure 5.4. This floor depth m ay reduce to 700 mm in the case without air conditioning services. 100-150 120 360 50 50 50 400 ≈ 1130-1180mm 1 2 3 4 1 Raised floor 2 Fan-coil unit 3 Ducting and insulation 4 Lighting and Ceiling Figure 5.4 Overall floor zone – typical short-span composite construction