FLOOR Russian patent published in 2008 - IPC E04B7/00 

FIELD: construction.

SUBSTANCE: invention is related to floors of buildings, in which plates of shaped boarding work together with bearing structures of floors. Floor contains trusses and girders that pass under top chords. Girders are rigidly fixed to truss posts. On girders, parallel to top truss posts, shaped boarding is rested and fixed with self-tapping screws. At that top chord is made with height equal to height of shaped boarding and installed in corrugation of shaped boarding.

EFFECT: increase of floor trusses bearing capacity due to combined operation of shaped boarding with floor chords.

3 cl, 3 dwg