Reinforced structure of a slab girder bridge and its construction method

Abstract

The invention discloses a reinforcement structure of a slab girder bridge, which comprises a corrugated steel plate arch shell and a reinforced concrete foundation. Both the upstream side and the downstream side of the slab girder bridge are provided with steel plate end walls, and the upper edge of the steel plate end wall is connected with the slab girder. Concrete filling body is poured in the space surrounded by corrugated steel plate arch shell, left reinforced foundation, left abutment, slab girder, right abutment, right reinforced foundation and steel plate end wall. The reinforced structure of the slab girder bridge greatly improves the bearing capacity of the bridge, and increases the overall stiffness of the bridge transversely, so that the stress on each main girder of the whole bridge is more uniform, avoiding the state of a single plate under stress, and prolonging the service life of the bridge. The invention also discloses a construction method for the reinforced structure of the slab girder bridge, which comprises the following steps: construction of reinforced foundation; construction of corrugated steel plate arch shell; construction of steel plate end wall; construction of concrete filling body. The construction method can quickly and effectively realize the construction of the reinforced structure of the slab girder bridge.

Description

technical field [0001] The invention belongs to the technical field of slab girder bridge reinforcement, and in particular relates to a slab girder bridge reinforcement structure and a construction method thereof. Background technique [0002] With the increase of the actual traffic load of active bridges, a large number of old bridges can no longer meet the requirements of use. Among the highway bridges in active service, quite a large part needs to increase the bearing capacity or repair and strengthen. Especially for those bridges with a certain load-bearing potential and little damage, through appropriate reinforcement measures, the bearing capacity of the bridge can be enhanced, its traffic capacity can be restored and improved, and its life can be extended. This not only saves money, but also speeds up the construction, and avoids the pollution problems caused by the demolition of old bridges. [0003] In the construction of highway bridges and urban bridges, slab gi...

AI Technical Summary

Problems solved by technology

However, the reinforcement I-beam is suspended at the bottom of the girder slab, which affects the appearance of the bridge; and, for those slab bridges that are often subjected to overloading and the existing structure can no longer meet the load requirements, and the slab bridges with low design standards in the early construction, It is also necessary to seek reinforcement solutions through other means

Images