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Prestressed concrete T-shaped beam on-site prefabricating erection construction method
The invention relates to a prestressed concrete T-shaped beam on-site prefabricating erection construction method and belongs to the technical field of bridge construction. The method comprises the steps that after bridge abutments on two shores are constructed, a T-shaped beam prefabrication site is arranged between the bridge abutments on the two shores; T-shaped beam construction is carried out on the T-shaped beam prefabrication site; the T-shaped beam prefabrication site is dismounted, and a riverway is recovered; after the riverway is recovered, beam falling construction is carried out, and then wet joint and bridge surface construction are finished. Compared with a conventional prefabrication site prefabricating constriction method, the prestressed concrete T-shaped beam on-site prefabricating erection construction method reduces workloads and expenses of construction of the prefabrication site and avoids usage of a large hoisting transportation device; compared with a movable formwork construction mode, the prestressed concrete T-shaped beam on-site prefabricating erection construction method avoids investment of a large movable formwork, lowers the construction cost and reduces the construction difficulty; compared with a cast-in-situ support construction mode, the prestressed concrete T-shaped beam on-site prefabricating erection construction method reduces the workloads, lowers the construction cost, and avoids the influence of prestressed stretching and drawing on a bracket. The prestressed concrete T-shaped beam on-site prefabricating erection construction method is especially suitable for backland bridge construction with construction sites limited.
Prestressed concrete T-shaped beam on-site prefabricating erection construction method
The invention relates to a prestressed concrete T-shaped beam on-site prefabricating erection construction method and belongs to the technical field of bridge construction. The method comprises the steps that after bridge abutments on two shores are constructed, a T-shaped beam prefabrication site is arranged between the bridge abutments on the two shores; T-shaped beam construction is carried out on the T-shaped beam prefabrication site; the T-shaped beam prefabrication site is dismounted, and a riverway is recovered; after the riverway is recovered, beam falling construction is carried out, and then wet joint and bridge surface construction are finished. Compared with a conventional prefabrication site prefabricating constriction method, the prestressed concrete T-shaped beam on-site prefabricating erection construction method reduces workloads and expenses of construction of the prefabrication site and avoids usage of a large hoisting transportation device; compared with a movable formwork construction mode, the prestressed concrete T-shaped beam on-site prefabricating erection construction method avoids investment of a large movable formwork, lowers the construction cost and reduces the construction difficulty; compared with a cast-in-situ support construction mode, the prestressed concrete T-shaped beam on-site prefabricating erection construction method reduces the workloads, lowers the construction cost, and avoids the influence of prestressed stretching and drawing on a bracket. The prestressed concrete T-shaped beam on-site prefabricating erection construction method is especially suitable for backland bridge construction with construction sites limited.
Prestressed concrete T-shaped beam on-site prefabricating erection construction method
DU HONGLIANG (author)
2015-05-20
Patent
Electronic Resource
English
IPC:
E01D
BRIDGES
,
Brücken
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