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Two-way curved arch bridge floor broadening and reinforcing process method

A double-curved arch bridge and technology, which is applied in bridge reinforcement, arch bridge, bridge, etc., can solve the problems such as the coordination of aesthetics and environment is difficult to compare with the old bridge, the widening and strengthening area is large, and the dead load of the upper structure is large. Achieve the effect of wide practical application prospect, good integrity and simple construction

Inactive Publication Date: 2015-04-22
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

For the former, since the main structure of the arch bridge is still well preserved, the overall structure (especially the lower structure) has no major diseases, and the conical slope at the bridge head and the retaining walls on both sides of the bridge are relatively intact, it is a big waste. , so the new bridge not only requires a large investment, but also the aesthetics and the coordination with the environment are difficult to compare with the old bridge; for the latter, the existing double-curved arch bridge deck widening and strengthening method tends to focus on arch waves or arch ribs. Fully reinforced, the widened and reinforced area is large, the dead load of the upper structure is too large, the cost is high, the construction is complicated and takes a long time, so it is necessary to optimize and improve it

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  • Two-way curved arch bridge floor broadening and reinforcing process method
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  • Two-way curved arch bridge floor broadening and reinforcing process method

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0026] figure 1 is a schematic cross-sectional view showing the operation of the widening and strengthening process according to the present invention. Such as figure 1 and figure 2 As shown in , the widening and strengthening process mainly includes the following operating procedures:

[0027] First, remove the original bridge deck concrete pavement of the double-curvature arch bridge, the...

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Abstract

The invention discloses a two-way curved arch bridge floor broadening and reinforcing process method. The two-way curved arch bridge floor broadening and reinforcing process method comprises the steps of (a) dismounting an original bridge floor concrete road surface and then respectively dismounting a part of curved cavity padding and side walls; (b) conducting bar embedding and concrete filling on two-way curved arch tiles on two sides; (c) installing steel bar concrete cushion blocks with inverted trapezoidal structures at the upper portions of the side walls and then casting a concrete filling-leveling layer on the top face of the curved cavity padding; (d) adopting a prestressed concrete cast-in-place cantilever mode to wholly casting concrete on the concrete filling-leveling layer and meanwhile arranging multiple expansion joints and contraction joints; (e) performing bridge floor conduction including a sidewalk system. By means of the two-way curved arch bridge floor broadening and reinforcing process method, the bearing performance of a bridge can be remarkably improved, bridge floor congestion can be effectively relieved, and meanwhile the two-way curved arch bridge floor broadening and reinforcing process method has the advantages of being convenient to construct, large in bridge floor broadening proportion, capable of remarkably improving side arch bearing capacity, good in reinforcing effect and the like.

Description

technical field [0001] The invention belongs to the technical field of bridge road construction, and more specifically relates to a method for widening and strengthening the deck of a double-curved arch bridge. Background technique [0002] The double-curved arch bridge is a commonly used arch bridge type in China. Due to its convenient construction, beautiful appearance, and low material consumption, this type of bridge has been widely constructed in many regions of the country to meet the needs of transportation. However, due to the increasing traffic volume, the width of the bridge deck often cannot meet the travel requirements, so it is urgently needed to be widened and improved; There must be a surplus, and the arch bridge structure itself has great potential, coupled with the combined effect of the buildings on the arch, that is to say, the bearing capacity of the existing arch bridge cannot be fully utilized; correspondingly, it is necessary to base on the existing ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00
CPCE01D4/00E01D19/125E01D22/00
Inventor 高荣雄乐颖周文玮胡方杰李敬
Owner HUAZHONG UNIV OF SCI & TECH
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