UA72225U - Method for arrangement of a plate of a bridge floor - Google Patents

Abstract

A method for arrangement of a plate of a bridge floor consists in that permanent form of the plate of traffic area is arranged of steel profiled deck that is laid on the beams of the bridge framework and at concreting the floor plate and till concrete maturing it serves as a form, after floor plate concrete maturing, the steel profiled deck is included to joint operation with the floor plate and operates as outer working armature in the lower section of the plate, in the upper section of the floor plate nets are placed, the rods of those take negative bending moments over the beams and serve as anti-shrinkage armature for concrete. The elements of permanent form are made of steel profiled deck to which rod anchors are welded, to those in the upper section one fixes longitudinal and cross rods of the upper working armature, with formation of a three-dimensional element as truss with parallel ledges: the lower ledge – a steel profiled deck, the upper ledge – longitudinal rods of armature, the posts – rod anchors, ties – cross rods of armature, such a permanent form is installed to the beams of the bridge framework, with laying in the upper zone of the plates armature rods over the beams of the bridge framework with resting on the rods of armature of the permanent form, and with concreting the plate of the bridge floor.