FIXED COUPLING UNIT FOR ECCENTRIC LOADED COLUMN MADE OF REINFORCED CONCRET E AND HAVING FOUNDATION Russian patent published in 2004 - IPC

FIELD: building, particularly building on slumping soil, for example reinforced concrete building frame erection and straightening. SUBSTANCE: coupling unit has through hole for lower column part. Hole extends to foundation bottom and passes into nozzle expanding in downward direction. Nozzle communicates with side voids arranged from two column sides. Hole expands in upward direction in bending moment plane with forming two side slide surfaces and rests. Side slide surfaces have slope from 1/10 to 1/7. Foundation has anchor bolt extending into upper hole part. Foundation nozzle is filled with powder material up to lower column end. Two pairs of anchor wedges which are introduced in upper hole part contact each other by mating slide surface, with side column surfaces and with foundation slide surface. Each pair of wedges includes support wedge oriented by its tip upwards and supported by foundation support and fixing cleat wedge oriented by its tip downwards and contacting by one slide surface with support wedge and by another slide surface with slide foundation surface. Anchor bolt is inserted into each fixing cleat wedge. Anchor bolt nut cooperates with fixing cleat wedge end. Column has detachable support plates for pulsing reciprocating jacks abutting plates from below and contacting with powder material poured into voids. EFFECT: increased reliability, possibility of foundation straightening together with column and column straightening relative foundation. 4 dwg