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Railway machine-made sand concrete box girder pouring and vibrating process

A technology of concrete box girder and machine-made sand, applied in bridges, buildings, bridge construction, etc., can solve problems such as unqualified quality

Inactive Publication Date: 2021-05-25
THE SECOND CONSTR OF CTCE GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] With the construction of infrastructure such as roads and railways, box girders are widely used. In the current construction technology of box girder pouring, there are longitudinal cracks at the junction of the web and the roof due to the settlement of the web concrete, which leads to the production of box girders. Substandard quality

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  • Railway machine-made sand concrete box girder pouring and vibrating process

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Embodiment Construction

[0016] The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.

[0017] see figure 1 shown.

[0018] A kind of railway machine-made sand concrete box girder pouring and vibrating process of the present invention comprises steps as follows:

[0019] Grouting of flange plates and roof area 4 on both sides: stop for 10 to 20 minutes after filling the top of web area 3 on both sides to allow the web concrete to fully sink, and then pour concrete in flange plates and roof area 4 on both sides to Solve the problem of longitudinal cracks at the junction of the web and the roof due to the settlement of the web concrete.

[0020] When pouring concrete on the flange plates on both sides and the bridge deck at the top of the roof area 4, the concrete is poured from one end to the other, but it must be ensured that the concrete on the roof is poured before the initial setting of the web concrete, and that...

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Abstract

The invention discloses a railway machine-made sand concrete box girder pouring and vibrating process which comprises the following steps: pouring flange plates on two sides and a top plate area: after the tops of web plate areas on two sides are poured to be flat, stopping for 10-20 minutes, so that web plate concrete is fully sunk, then pouring the concrete on the flange plates on two sides and the top plate area, and pouring the concrete on the top plate area on two sides; the problem of longitudinal cracks caused by web concrete sinking at the junction of the web and the top plate is solved.

Description

technical field [0001] The invention relates to a pouring and vibrating process of a railway machine-made sand concrete box girder, which belongs to the technical field of box girder construction. Background technique [0002] With the construction of infrastructure such as roads and railways, box girders are widely used. In the current construction technology of box girder pouring, there are longitudinal cracks at the junction of the web and the roof due to the settlement of the web concrete, which leads to the production of box girders. Subsequent quality is not up to standard. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention provides a pouring and vibrating process for railway machine-made sand concrete box girders. [0004] The present invention is achieved through the following technical solutions. [0005] A kind of railway machine-made sand concrete box girder pouring and vibrating process provided ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D2/04E01D21/00
CPCE01D2/04E01D21/00
Inventor 候永福宋军张显波李景杰李欣
Owner THE SECOND CONSTR OF CTCE GROUP