Construction method for upright lifting of large-tonnage box girder to bridge, and erection method for large-tonnage box girder
US11391004B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | May 15, 2020 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | May 15, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01D2/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A construction method for the upright lifting of a large-tonnage box girder to a bridge, and an erection method for the large-tonnage box girder. The construction method comprises: constructing a lifting station (2) at reserved bridge piers (1); disposing a girder lifting base (3), lifter traveling rails (4), and a mounting lifter (6) in the lifting station (2); directly erecting a box girder (7) by the lifter (6) in a way that the lifter (6) travels to a position above the base (3) and erects the box girder (7). The erection method further comprises: lifting by the lifter (6) a single set of transport and erection apparatuses or two sets of transport and erection apparatuses to a bridge, a girder transport vehicle (9) cooperating with a bridge erecting machine (10) to repeatedly complete the erection of the box girder (7); hoisting by the lifter (6) the transport and erection apparatus off the bridge; lifting by the lifter (6) the box girder (7) within the scope of the reserved bridge pier (1) to the erected box girder (7); and constructing the reserved bridge piers (1); completing by the lifter (6) the erection of the box girder (7) within the scope of the reserved bridge piers (…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.