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Comprehensive reinforcing structure of active-service T-beam bridge and construction method

A technology for strengthening structures and girder bridges, which is applied in bridge reinforcement, bridge construction, etc. It can solve problems such as unsatisfactory reinforcement effects, low construction efficiency, and limited construction space, so as to improve drilling accuracy and efficiency and speed up pouring Improve construction efficiency and improve drilling quality

Pending Publication Date: 2022-04-22
ZHEJIANG ZHENGFANG TRAFFIC CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional T-girder bridges will suffer from many diseases as time goes by during their service, such as support voids, diaphragm cracks, bridge deck damage, expansion joint deformation, etc. These diseases often endanger the service life of the bridge and cause safety hazards
[0003] Bridge reinforcement is a means to treat bridge diseases and restore safe operation of the bridge. A suitable reinforcement scheme can restore or improve the bearing capacity of the bridge, increase the durability of the bridge, and prolong the service life of the bridge. When strengthening the T-beam bridge, due to the The working conditions are complicated, the construction space is limited, the reinforcement effect is often not ideal, and the construction efficiency is low

Method used

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  • Comprehensive reinforcing structure of active-service T-beam bridge and construction method
  • Comprehensive reinforcing structure of active-service T-beam bridge and construction method
  • Comprehensive reinforcing structure of active-service T-beam bridge and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The comprehensive reinforcement structure of the T-beam bridge in active service includes a support-separated fast enclosure and closed grouting device, a drilling auxiliary device, a prestressed carbon fiber plate installation and a temporary steel plate fixing device, and a precise control frame for the drilling depth of the bridge deck pavement and planting bars and non-leakage steel fiber concrete pouring mold;

[0046] Such as figure 1 As shown, a support-separated fast enclosure and closed grouting device mainly includes welding hinges, semi-cylindrical steel plates, strip-shaped steel plates, bolts, nuts, bolt holes, built-in sealing rubber rings, etc., the semi-cylindrical One end of the steel plate 2 is fixedly connected by the welding hinge 1, and the other end is welded to the elongated steel plate 3. The elongated steel plate 3 is provided with a bolt hole 6, and the first bolt 4 is fixed with the nut 5 through the first bolt hole 6 to make the semi-cylindri...

Embodiment 2

[0052] The present invention also provides a construction method for an active T-beam bridge comprehensive reinforcement structure, comprising the following steps:

[0053] (1) Support reinforcement construction: Before construction, clean up the surroundings of the T-beam supports that need to be grouted. , prefabricated mortar, closed the target support with a separated support fast enclosing grouting device, and inserted a built-in sealing rubber ring 7 at the joint between the lower edge of the support and the device, and passed the first bolt 4 through the first bolt hole 6. Tighten the nut 5 to close the device. After the installation of the device is completed, pour the prefabricated mortar into the gap between the interior of the device and the support through the grouting machine. After the grouting is completed and the curing period is reached, the device is removed.

[0054] (2) Drilling accuracy control: when drilling the T-beam web, place the drilling auxiliary de...

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Abstract

The invention relates to a comprehensive reinforcing structure of an active-service T-beam bridge. The comprehensive reinforcing structure comprises a support separation type rapid enclosing and sealing grouting device, a drilling auxiliary device, a prestressed carbon fiber plate mounting and steel plate temporary fixing device, a bridge deck pavement steel bar planting drilling depth accurate control frame and a slurry-leakage-free steel fiber concrete pouring mold. The support separation type rapid enclosing and sealing grouting device comprises a welding hinge, a semi-cylindrical steel plate and a long-strip-shaped steel plate. The drilling auxiliary device comprises a U-shaped bracket, a vertical rod and a sleeve rod; the prestressed carbon fiber plate mounting and steel plate temporary fixing device comprises a carbon fiber plate, a steel pipe, a rubber gasket, a second steel plate and a U-shaped steel plate clamp. The bridge deck pavement embedded steel bar drilling depth accurate control frame comprises a vertical baffle, a movable bolt, an upper transverse baffle and a lower transverse baffle. The T-beam bridge reinforcing structure has the beneficial effects that the T-beam bridge reinforcing construction with limited construction conditions can be achieved, the requirement for the operation space is small during construction, and good technical benefits are achieved.

Description

technical field [0001] The invention relates to an active T-beam bridge comprehensive reinforcement system and a construction method, belonging to the field of T-beam bridge construction. Background technique [0002] Traditional T-girder bridges will suffer from many diseases over time during their service, such as hollow supports, cracks in diaphragms, bridge deck damage, deformation of expansion joints, etc. These diseases often endanger the service life of the bridge and cause safety hazards. [0003] Bridge reinforcement is used as a means to treat bridge diseases and restore safe operation of the bridge. A suitable reinforcement scheme can restore or improve the bearing capacity of the bridge, increase the durability of the bridge, and prolong the service life of the bridge. When strengthening the T-beam bridge, due to the The working conditions are complicated and the construction space is limited, the reinforcement effect is often not ideal, and the construction effi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 吕会军周荣军王朋
Owner ZHEJIANG ZHENGFANG TRAFFIC CONSTR CO LTD