The expanded and renovated hall complex of the Mainfrankensäle in Veitshöchheim lies directly on the Main River – which of course makes flood protection an extremely important issue.
More than 10 BLOBEL flood barriers (BL/HDS model) are already in place to ensure that the many events held here – such as the televised carnival centrepiece ‘Fastnacht der Franken’ – and the visitors who attend them are not put at risk by flood water. Side supports for the flood barriers were fitted to single and double-leaf doors and to lift doors before the shell of the building was completed.
When these lateral supports were installed, there was no flooring to attach them to as the ground consisted merely of a layer of gravel. Special substructures of V2A stainless steel were therefore put into place, with floor brackets that would lie flush with the floors when these were finally laid down.
If it comes to an emergency, the special seal applied to the lowest barrier element inserted into the side supports will press down onto these floor brackets. Together with the floor brackets, the tightly locked closure elements and the U-shaped, stainless-steel side posts (also fitted with a special seal) thus form a watertight space that closes off on three sides in the event of flooding.
Image 1: Shell construction – If flooding is imminent, the flood barriers can be inserted by hand into the side supports. The vertical locking mechanism presses the barriers down onto the special sealing material applied below to form a watertight seal.
Image 2: The lateral guide rails were put in place before the flooring was laid down, so a substructure with stainless-steel floor brackets was needed that would later be flush with the surface of the floor and provide an optimum base onto which to compress the sealing material applied to the bottom barrier.
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