A reinforcement method for hollow slab girder bridge

A hollow, bottom plate technology, applied in the direction of bridge reinforcement, bridge, bridge construction, etc., can solve the problems of inaccessibility of personnel, low turnover, leakage of formwork, etc., to achieve high practical value and promotion value, sufficient elasticity and flexibility. The effect of good anti-expansion strength

Active Publication Date: 2021-06-22
杜雷
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] Because steel formwork and wood formwork have certain defects in use, for example: when concrete is poured, a large amount of heat will be released, which will cause the steel formwork to be extremely hot, so it must be poured in a place with good ventilation and air permeability, and the presence of formwork There will be grout leakage in the gaps, and there are some beams and slabs with small apertures, which cannot be operated by the human body at all, which will cause certain difficulties in demolition.
The manufacturing process of wooden molds is quite complicated, which wastes wood; and it is difficult to fix and demould, and the turnover times are relatively low

Method used

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  • A reinforcement method for hollow slab girder bridge

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Embodiment

[0030] A kind of reinforcement method of hollow slab girder bridge, the reinforcement method of described hollow slab girder bridge comprises the following steps:

[0031] Step S01, remove the damaged top plate, and repair the corresponding bottom plate: remove the damaged part of the original bridge roof of the hollow slab girder bridge to be reinforced, and repair the surface of the bridge bottom plate corresponding to the damaged top surface;

[0032] Step S02, vertical binding and fixing bars: reserve the size and position of the capsule on the trimmed bottom plate, bind the round anti-floating steel bar on the bottom plate of the bridge body and the vertical bridge body bottom plate, add the capsule positioning steel bar and fastened firmly;

[0033] Step S03, placing the airbag vertically: place the airbag vertically to the reserved position on the upper part of the floor, and inflate the airbag with an air pump;

[0034] Step S04, install the mould: set the side mold t...

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Abstract

The invention discloses a method for reinforcing a hollow slab girder bridge, which comprises the following steps: step S01, remove the damaged top plate, and repair the corresponding bottom plate, step S02, vertically bind and fix ribs, step S03, vertically place an air bag, step S04, install Mold, step S05, pouring concrete, step S06, taking out the mold and the airbag, step S07, setting reinforcing ribs, and repairing the top surface. Through the above scheme, the invention achieves the purpose of reducing the difficulty of the process and improving the construction safety, and has high practical value and popularization value in the technical field of bridge engineering.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a method for reinforcing hollow slab girder bridges. Background technique [0002] Prefabricated concrete slab (hollow slab, solid slab) slab-girder bridge is a commonly used bridge type in early bridge engineering in my country. The structure of the bridge is simple, easy to prefabricate, economical in materials, easy to factory production and standardized construction, and the veneer is light in weight and good in stability during transportation and hoisting, so it is suitable for small bridges in expressways and ordinary trunk roads. generally adopted. [0003] Because steel formwork and wood formwork have certain defects in use, for example: when concrete is poured, a large amount of heat will be released, which will cause the steel formwork to be extremely hot, so it must be poured in a place with good ventilation and air permeability, and the presence of formwor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 易刚山尤红运杜雷
Owner 杜雷
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