Method for reinforcing capping beam by using carbon fiber and reinforcing structure

A reinforcement structure and carbon fiber technology, applied in bridge reinforcement, bridge, bridge maintenance, etc., can solve the problems of cover beam structural failure, poor comprehensive reinforcement effect, etc., and achieve good wrapping performance and excellent prestressing effect

CN109537475AActive Publication Date: 2019-03-29SHANDONG JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-03-29

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Abstract

The invention discloses a method for reinforcing a capping beam by using carbon fiber and a reinforcing structure, which are used for solving the problem that the reinforcement is not firm. The methodcomprises the following steps: step 1, carrying out construction lofting and measurement on the capping beam to be reinforced, accurately determining the size of a repaired steel piece, preparing therepaired steel piece, and fixing the repaired steel piece at a chamfer of the capping beam; step 2, at least arranging one carbon fiber board, a set of fixed end support components, a tension end support component and a closed reinforcing ring consisting of connecting steel plates at the positions of the upper edge or / and the lower edge of the capping beam; step 3, treating the area between the two carbon fiber boards by using carbon fiber cloth. The method for reinforcing the capping beam by using carbon fiber and the reinforcing structure have sufficient self-locking property and floating property, ensures that a closed ring is formed between the carbon fiber board, the support component and the connecting steel piece through the connecting steel plate, and a pre-stress is formed between the closed rings to reinforce the capping beam, thereby having better reinforcing effect than the traditional reinforcing effect.
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Description

technical field

[0001] The invention relates to the technical field of bridge reinforcement. Background technique

[0002] According to Baidu Encyclopedia: Bridge reinforcement is to improve the bearing capacity and service performance of components and even the entire structure through certain measures to meet new requirements. That is to say, it is necessary to deal with the situation that the bridge cannot meet the continuous use.

[0003] Reasons for strengthening include poor durability and aging of the bridge, poor design or poor construction quality, etc. After the bridge is reinforced, the service life of the bridge can be extended, and with a small amount of capital investment, the bridge can meet the demand of traffic volume, and it can also ease the concentration of bridge investment, prevent and avoid the loss of people and property caused by bridge collapse.

[0004] Cover beam 000 is a beam set on the top of bent pile piers to support, distribute and transmit...

Examples

Embodiment Construction

[0072] The present invention will be described in further detail below in conjunction with accompanying drawing, so that those skilled in the art can understand more clearly, as figure 1 , figure 2 Shown, the present invention adopts following steps:

[0073] First, determine the reinforcement scheme according to the style and damage degree of the cover beam,

[0074] Step 1: Carry out construction lofting and measurement of the repaired and reinforced parts of the cover beam of the bridge to be reinforced according to the design drawing, accurately determine the size of the repaired steel part 00, and prepare the repaired steel part. Usually, steel plates are usually used in engineering to form the repaired steel part , and carry out anti-corrosion treatment, refer to Fig. Figure 20 and Figure 21 , in this embodiment, according to the style of chamfering 001, the repaired steel piece adopts a triangular structure, with ribs formed by welding inside, and bolt holes are s...