METHOD FOR LIFTING OF REINFORCED CONCRETE BEAM OF BRIDGEWORK DURING REPAIR OF SUPPORT CROSSBAR OR REPLACEMENT OF SUPPORT PARTS Russian patent published in 2013 - IPC E01D21/00 

FIELD: construction.

SUBSTANCE: method for lifting of a middle reinforced concrete beam of a bridgework span during repair of a support crossbar or replacement of support parts includes installation of vertical link rods, thrust and support cross beams, installation of a lifting device, lifting of a span beam with the help of the lifting device, subsequent repair of the support crossbar or replacement of support parts, lowering of the span and disassembly of cross beams and auxiliary devices. The novelty in the proposed method is the fact that the large thrust beam is installed across the bridgework at the height h, small support cross beams are mounted under the lifted middle beam and two adjacent beams, at the same time the lifting device is at least one jack installed on the large thrust cross beam, interacting with the small additional cross beam. To lift the extreme reinforced concrete beam, the large thrust cross beam is installed across the bridgework to the height h, small support cross beams are mounted under the lifted extreme beam, and under one of additional middle beams, at the same time the lifting device is at least one jack installed on the beam, which is adjacent relative to the lifted one, and interacting with the large thrust cross beam.

EFFECT: simplified method to lift bridgework beams with reduction of labour expenses, reduction of time for performance of repair works and creation of favourable conditions for performance of repair works.

3 cl, 2 dwg