The accessible raised floor is known as a technological dry screed. It is now being used in new ways and with cutting-edge design techniques for all kinds of buildings. Metal, wood, reinforced concrete or mixed floors all have a structural, weight-bearing part and a non-structural part for other functions.
The structural part must bear its own weight as well as the additional non-structural part of the ceilings of the storey below, system slabs and floor screeds, the floor itself and the people and things resting on the finished floor.
The non-structural part greatly influences floor calculations as well as seismic calculations: the lower the total weight, the simpler and less expensive the load-bearing structures can be, starting from the foundations.