Slimline floor an invention by Pronk and Lichtenberg

Slimline flooring makes it possible to realize distinctive designs for both high, utility and residential construction. The floor elements can span more than 16 meters, which offers great opportunities for large open, freely arranged spaces. Because the installation space is not filled with concrete, the own weight of the total floor package is relatively low, resulting in a weight reduction of 50% compared to traditional systems. In combination with the advantage that installations at Slimline are placed in the floor and therefore not in a suspended ceiling, it is possible to design main supporting structures and lighter foundations. Slimlinefloors also offers great freedom of form. Building with Slimlinefloors means prefab, dry, fast and stamp-free construction. In this way, the client can dispose of the building earlier, but the shorter construction process also translates into an integral saving on construction costs. Due to the integration of ceiling, installation space and top floor, Slimline saves between 40 and 50 cm height per floor compared to other systems. This leads to a saving of 15% on the gross floor height. With Slimline, seven floors can therefore be realized at the same building height compared to six with other construction techniques. Slimline also offers excellent properties in terms of acoustics and comfort.
Slimline prefab floor elements consist of steel IPE or HEA profiles, with a project-specific sparing pattern for the transit of installations, which have collapsed into a concrete ceiling shell. By varying the number and type of profiles, spans of more than 16 meters and high variable floor loads are possible. The package thickness depends on the profiles used. Laying the floor elements is possible on all kinds of structures, from masonry to wood and from precast concrete to steel structures. Slimline floor elements are interconnected by means of steel coupling plates to be welded in the work that connect two devices that have collapsed in the concrete shell. In this way, the floor field forms a constructive disc. Wind load is introduced through the steel profiles or indirectly through the concrete shell. On the steel profiles of the Slimline floor elements, different types of top floors with different possibilities for the accessibility of the installation space can be placed, such as a dovetail cast floor or a computer tile floor. Thanks to the two-tier construction with the acoustically decoupled floating screed on 15 mm rubber granulate, sound insulation values of Iluc and Ico > 10dB are achieved in both laboratory tests and practical measurements.