UNIT OF COUPLING OF MULTI-CELLULAR BOARDS OF KUCHIKHIN Russian patent published in 2009 - IPC E04B1/61 E04B5/02 

FIELD: construction.

SUBSTANCE: invention is related to the field of construction, in particular to unit of coupling of multi-cellular boards. Coupling unit comprises multi-cellular prestressed reinforced concrete boards. Boards are arranged with longitudinal-transverse reinforcement, with protrusions of armature rods in lower part of coupled boards and additional connection metal elements. Additional elements are installed in interboard seams. Interboard seams after boards installation on crossbar are embedded, creating disk of precast-monolithic floor. Lateral sides of boards are equipped with vertical keys. End sides of boards are inverted to each other by cavities and are equipped with two slots. Slots are arranged in the area of appropriate cavities. Bottom parts of slots are bottom part of cavities. In every board parallel to end surface, metal rod is installed. Additional connecting metal elements - tension bars - are introduced perpendicularly to metal rod. Tension bars are coupled with each other by means of bandaging, and with boards - by hook-like elements by means of engagement with metal rod. Facilities for seismic stability improvement are arranged in the form of transverse zigzag wire coupled with longitudinal armature rods with the possibility of stretching.

EFFECT: reliability, minimum consumption of materials and possibility to use coupling unit in construction in earthquake regions.

2 cl, 2 dwg