Steel Buildings in Europe

Part 2: Concept Design 2 - 12 Figure 2.1 Rapid installation of steelwork and steel decking speeds up the construction process 2.2 Construction process Speed of construction is achieved by ‘j ust in time’ delivery of components and by rapid assem bly for the steel fram ework. It is estim ated that a sing le tower crane can install up to 20 steel elements per day, which corresponds to a floor area of approximately 300 m 2 . Secondary benefits in steel construction arise from:  Placing of steel decking, in ‘bundles ’ on the beam s and installation of decking at a rate of up to 500 m 2 per day  Avoidance of tem porary propping by usi ng steel decking spans of 3 m to 4 m for profiles of 50 mm to 80 mm depth  Fire pro tection by intu mescent coating th at is applied in the factory and, therefore, eliminates the time required for this process on-site  Opportunities for reduction in the amount of fir e protection by use of fire engineering analysis  Use of mobile installation platforms improve construction safety and speed up the installation process, as shown in Figure 2.2  Prefabricated stairs that are installe d as part of the steel construction package  Safety barriers can be attached to the perimeter steel beams, see Figure 1.5  Rapid concrete placem ent of up to 1000 m 2 area in one day for a 130 m deep slab