Continuous beam bridge hanging basket construction post tensioning method, prestressed tension also need to measure the strain value?
Construction technology of concrete cable-stayed bridge with cast-in-place and precast assembly and other combinations.
Simple introduction of hanging basket construction:1 steel cable-stayed bridge construction, most of the factory welding, transported to the site, with the crane as a whole lifting, or block lifting, in place after the formation of high-strength bolts.
Stretching process:(1) post tensioned precast box girder is made of prefabricated field or precast factory prefabricated box girder, and then transported to the site erection; (2) the post tensioned prestressed cast-in-place box girder bridge, is in direct casting box girder and prestressed tension. Cast in situ prestressed box girder, according to the support structure is different, the full frame pouring box beam and hanging basket construction pouring box beam. The hanging basket construction is the use of suspension facilities, segmental mold hanging and binding steel corrugated pipe, installation, concrete pouring, wearing steel strand, stretching and grouting, the completion of a segmental box girder, a segmental box girder, until the completion of the entire construction segment.
