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The casting of the concrete foundation slab marked the start of building work at Mannheim Business School in April 2016. The underground extension is supported on base plate extending over the entire area. At the intersection of new and the old, existing walls and foundations were underpinned. The lecture theatres are surrounded by a reinforced concrete framework, with load-bearing outer walls and a flat roof supported on columns. The two cambered lecture theatre ceilings emerge 125cm higher than the 45cm-deep reinforced concrete roof slab. These two domes and the flat roof were reinforced and then cast employing pumped concrete, and the topping-out ceremony in September was attended by 150 guests. The canopy roof above the glazing overlooking the castle garden consists of 15 large-format white concrete cladding panels and the curvature of the roof dictated that each one of these panels had to be specially manufactured. In spite of their minimal depth they are extremely strong, and measure 4.0m long by 2.50m wide, yet are
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