UNIT FOR COUPLING OF REINFORCED CONCRETE MULTI-CELLULAR BOARDS OF KUCHIKHIN-2 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 for coupling of reinforced concrete multi-cellular boards. Unit for coupling of reinforced concrete multi-cellular boards is intended for application in precast-monolithic floors with bearing reinforced concrete crossbars. Boards coupled with bearing reinforced concrete crossbar are arranged with two slots. Slots are inverted to each other in the field of interboard seam and are created in the area of cavities down to their bottom part. Boards have armature protrusions inverted into area of interboard seam. Parallel to end surface in every board there are metal rods, which are connected to each other by tension bars with hooks in ends fixed to rods. Tension bars are arranged as composite and coupled to each other in the area of interboard seam. On board edges there are two pairs of parallel longitudinal armature rods. One of longitudinal armature rods of every pair is installed in upper part of board link, and the other one - underneath in lower part of the same link. Every pair of rods is created with single rod that passes through link and producing stitch in link surface in its height. Between upper and lower rods of every pair there is a zigzag wire. Wire is fixed in separate areas with those longitudinal armature rods, with which it is in contact. Bearing reinforced concrete crossbar has protrusions of longitudinal armature and transverse armature rods, which are installed above the longitudinal ones and with which additionally introduced loop-like armature elements are joined. In interboard seam above reinforced concrete crossbar there is armature frame arranged the whole length of seam. Height of loop-like armature elements does not exceed height of armature frame. Width of loop-like armature elements does not exceed width of the same armature frame.

EFFECT: possibility of unit operation under seismic loads, improved reliability and lower metal intensity.

2 dwg