English to Polish Tech/Engineering Construction / Civil Engineering construction

Patent EP2483488

http://tnijurl.com/4158da701db5/

„To provide a satisfactory high thermally-acoustically insulation of the floor, without using larger thicknesses, the reinforced concrete ribs will be made rigid in the intrados to a bottom beam of lamellar wood, and the assembly will be coated by a layer of a thickness of about 3 cm of a zero class fire resistance material, which will also provide thermoacoustic properties for the same floor.

[...]

each of said ribbed panels comprises a plurality of reinforced concrete ribs delimiting said recesses (2) and that are made integral with a beam placed in a part of said panel opposite to the part where said first finishing slab floor (13) is placed, said beam being made of lamellar wood.”

Ja bym to nazwał po prostu drewnem konstrukcyjnym, ale w patentach trzeba być precyzyjnym, więc może chodzi o coś trochę innego?