Transition roadway for managing bumping at bridge-head

A bridge head jumping and roadbed technology, applied in the directions of roads, roads, buildings, etc., can solve problems such as bridge head jumping, and achieve the effect of preventing bridge head jumping and preventing slippage.

Inactive Publication Date: 2011-05-04
合肥工大科教开发部
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention is to avoid the shortcomings of the above-mentioned prior art, and to provide a transitional subgrade for treating vehicle jumping at the bridge head, so that the road surfac

Method used

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  • Transition roadway for managing bumping at bridge-head
  • Transition roadway for managing bumping at bridge-head
  • Transition roadway for managing bumping at bridge-head

Examples

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Example Embodiment

[0017] In this embodiment, figure 1 As shown, the bridge includes a pile foundation 9, a bridge pier 10, and a bridge abutment 1. The transition section includes a pavement, a reinforced concrete hollow slab 3, and backfill 2; the pavement is divided into a pavement layer 7, a pavement cushion layer 5, and the original roadbed 8.

[0018] See figure 1 In this embodiment, one end of a reinforced concrete hollow slab 3 with the same width as the width of the roadbed is implanted in the bridge abutment 1 with a fixed steel bar 4, and the reinforced concrete hollow slab 3 at the position of the fixed steel bar 4 is buried under the pavement cushion 5; The other end of the reinforced concrete hollow slab 3 is placed on the end support 11 close to the original embankment 6, so that the reinforced concrete hollow slab 3 is placed obliquely between the bridge abutment 1 and the end support 11 to form a transition section of roadbed. The rigidity of the reinforced concrete hollow slab 3 is...

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Abstract

The invention discloses a transition roadway for managing bumping at bridge-head, which is characterized in that one end of each reinforced concrete hollow slab of which the width is same as that of the roadway is embedded into an abutment with fixed reinforcing steel bars, and the reinforced concrete hollow slabs at the positions at which the fixed reinforcing steel bars locate are buried below a bed course; the other ends of the reinforced concrete hollow slabs are arranged on end strutting pieces closing to the original embankment, so that the reinforced concrete hollow slabs are obliquely arranged between the abutment and the end strutting pieces to form a transition roadway; and stiffness of the reinforced concrete hollow slabs is consistent with that of the abutment. The transition roadway provided by the invention is used, so that settlement and abrupt change of the road surface nearby the bridge head are not caused by continuous settlement, thus fundamentally solving the problem of bumping at bridge-head resulting from the settlement and abrupt change of the road surface.

Description

technical field [0001] The invention relates to a transition roadbed structure used for controlling the phenomenon of vehicle jumping at the bridge head. Background technique [0002] Bridge head jumping is a phenomenon in which vehicles run bumpy due to large differences in settlement due to the large difference in stiffness between the abutment and the roadbed. The vehicle jumping at the bridge head seriously affects the safety and comfort of driving, and the impact load generated by the vehicle jumping has a very adverse effect on the abutment. Slowing down bridge head jumping and improving driving safety and comfort has always been a difficult problem in the engineering field, and it is also one of the problems that need to be solved urgently in highway engineering construction. Many scholars at home and abroad have done a lot of research on the mechanism and solutions of the phenomenon of vehicle jumping at the bridge head, and put forward some control measures. Exist...

Claims

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Application Information

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IPC IPC(8): E01C3/00
Inventor 董满生赵佳佳侯超群郑小燕胡晴余志平
Owner 合肥工大科教开发部
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