Bridge structure and construction technique thereof

A technology of bridge structure and construction technology, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of no extension space, blockage, unfavorable bridge stability, etc., and achieve the effect of reducing the thermal expansion gap

Inactive Publication Date: 2018-01-09
江苏通余建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The bridge slab generally includes a reinforced concrete layer, and a base layer and an asphalt surface layer are successively laid on top of the reinforced concrete layer. In the process, gravel and yellow sand will enter the gap and be located on the pier; resulting in the accumulation of gravel and yellow sand in the gap, and even block the gap; after the bridge is heated, the bulging part of the bridge will not The extended space is not conducive to the stability of the bridge, so it needs to be improved

Method used

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  • Bridge structure and construction technique thereof
  • Bridge structure and construction technique thereof
  • Bridge structure and construction technique thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A bridge structure, refer to figure 1 , Which includes the bridge slab 2 and the pier 1, which are arranged at intervals; the bridge pier 1 is located under the bridge slab 2 to support the bridge slab 2; there is a thermal expansion gap 3 between the adjacent bridge slabs 2, and the thermal expansion The gap 3 is located directly above the pier 1.

[0047] Reference figure 1 , The thermal expansion gap 3 is inserted with a blocking plate 31, which is a wood or rubber plate; the blocking plate 31 is detachably connected to the thermal expansion gap 3; after the bridge construction is completed, the blocking plate 31 is taken out That's it.

[0048] Reference figure 1 with figure 2 , The upper surface of the bridge slab 2 and both ends are provided with fixing plates 21, which are fixed on the bridge slab 2 by screws; the distance between the two fixing plates 21 on both sides of the thermal expansion gap 3 is equal to the thermal expansion The distance of the gap 3; the up...

Embodiment 2

[0056] A construction process applied to the bridge structure in Example 1, including the following steps:

[0057] S100. Build pier 1 at intervals along the expected route; the construction of pier 1 refers to the pier and abutment part of "DGTJ08-2160-2015 Technical Specification for Prefabricated Bridge Pier 1".

[0058] S200. Lift the prefabricated bridge slab 2 above the bridge pier 1, and drop the bridge slab 2 to the upper surface of two adjacent bridge piers 1; the gap between the two adjacent bridge slabs 2 is the thermal expansion gap 3; The bridge slab 2 is a pre-made bridge slab 2 made by the manufacturer in order to accelerate the construction progress of the bridge, and the bridge slab 2 is a prestressed concrete hollow bridge slab 2.

[0059] S300. Insert the blocking plate 31 into the thermal expansion gap 3; the blocking plate 31 is a wooden board or a rubber plate;

[0060] S400: Fix the fixing plate 21 on both ends of the bridge plate 2 by screws; the two fixing pla...

Embodiment 3

[0072] A construction process applied to the bridge structure in Example 1, including the following steps:

[0073] S100. Build pier 1 at intervals along the expected route; the construction of pier 1 refers to the pier and abutment part of "DGTJ08-2160-2015 Technical Specification for Prefabricated Bridge Pier 1".

[0074] S200. Lift the prefabricated bridge slab 2 above the bridge pier 1, and drop the bridge slab 2 to the upper surface of two adjacent bridge piers 1; the gap between the two adjacent bridge slabs 2 is the thermal expansion gap 3; The bridge slab 2 is a pre-made bridge slab 2 made by the manufacturer in order to accelerate the construction progress of the bridge, and the bridge slab 2 is a prestressed concrete hollow bridge slab 2.

[0075] S300. Insert the blocking plate 31 into the thermal expansion gap 3; the blocking plate 31 is a wooden board or a rubber plate;

[0076] S400: Fix the fixing plate 21 on both ends of the bridge plate 2 by screws; the two fixing pla...

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Abstract

The invention discloses a bride structure and a construction technique thereof. The bridge structure comprises bridge plates and bridge piers located below the bridge plates and used for supporting the bridge plates, and heat expansion gaps are formed in the positions, over the bridge piers, between every two adjacent bridge plates. The bride structure is characterized in that plugging plates aredetachably inserted in the heat expansion gaps; fixing plates are arranged at the two ends of the upper surfaces of the bridge plates, and a base layer is arranged on the upper surface, located between the two corresponding fixing plates, of each bridge plate; and an asphalt surface layer is laid on each base layer. According to the key points of the technical scheme, when the base layers are laid, the plugging plates are located in the heat expansion gaps, so that in the building process, gravel entering the heat expansion gaps is effectively reduced; and when the plugging plates are pulled out, the fixing plates are used for fixing the end walls of the base layers to reduce the gravel, entering the heat expansion gaps, in the base layer, so that the effect that particles, such as the gravel, entering the heat expansion gaps are effectively reduced is achieved.

Description

Technical field [0001] The invention relates to the technical field of bridge construction, and more specifically, it relates to a bridge structure and its construction technology. Background technique [0002] Bridges generally refer to structures erected on rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. In order to adapt to the rapid development of the modern transportation industry, bridges are also extended to cross mountain streams, poor geology or to meet other transportation needs and erected to make traffic more convenient. [0003] The existing Chinese patent with publication number CN106223186A provides a bridge seismic structure with additional cable-connected damper devices, which includes several bridge piers; two adjacent bridge piers jointly support the upper structure, and the upper structure is a bridge slab for vehicles Driving or pedestrian walking. There are gaps between adjacent bridge slabs; when the bridge slabs are exposed to s...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): E01D1/00E01D19/06E01D19/08E01D21/00
Inventor陶明心刘和平
Owner江苏通余建设工程有限公司