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Connection structure of prefabricated corrugated steel web composite box girder roof and construction method

A corrugated steel web and prefabricated assembly technology, which is applied in the erection/assembly of bridges, bridges, bridge construction, etc., can solve the problems of concrete pouring and maintenance, cumbersome procedures, large impact on the surrounding environment, and slow construction progress, so as to shorten the construction period, Avoid formwork erection and reduce the effect of the process

Pending Publication Date: 2020-01-03
NINGBO COMM PLANNING INST CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The above-mentioned steel web composite box girder bridge structure still has the following unavoidable problems: 1. The roof of the steel web box girder generally adopts the construction method of all in-situ pouring. Cracks, slow construction progress; 2. Concrete pouring maintenance and procedures are cumbersome, and on-site pouring has a great impact on the surrounding environment; further improvement is needed for this

Method used

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  • Connection structure of prefabricated corrugated steel web composite box girder roof and construction method
  • Connection structure of prefabricated corrugated steel web composite box girder roof and construction method
  • Connection structure of prefabricated corrugated steel web composite box girder roof and construction method

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0035] Such as Figure 1-9 Shown is the preferred embodiment of the present invention. In this embodiment, the connection structure of the prefabricated corrugated steel web combined box girder roof includes a roof 1, a corrugated steel web 2 and a shear connector connected between the top plate 1 and the corrugated steel web 2, and the corrugated steel web The web 2 includes an upper flange steel plate 3, and the top plate 1 is provided with at least two grooves 11 at intervals, and at the lower edge of each groove 11 there are at least two pre-embedded penetrations perpendicular to the corrugated steel web 2 steel bar 4, and the shear connector includes a first steel plate 8 connected to the upper flange steel plate 3, and the first steel plate 8 is provided with at least two holes for the corresponding pre-embedded through steel bar 4 to sna...

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Abstract

The invention relates to a connection structure of a prefabricated corrugated steel web composite box girder roof. The connection structure includes a roof, corrugated steel webs and shear connectingpieces connected between the roof and the corrugated steel webs. The corrugated steel webs include upper flange steel plates, and are characterized in that the roof is provided with at least two mortises at intervals, and at least two embedded through steel bars perpendicular to the corrugated steel webs are further arranged at the lower edge of each mortise. The shear connecting pieces include first steel plates connected to the upper flange steel plates, and each first steel plate is provided with at least two clamp-in parts at intervals for the corresponding embedded through steel bars to clamp in the length direction of the first steel plate. The invention further provides a construction method. Compared with the prior art, the connection structure and construction method have the advantages that the prefabricated concrete roof reserved with the discontinuous mortises is directly hoisted to the upper flange steel plates of the corrugated steel webs, and the assembly can be completed only by connecting the discontinuous shear connecting pieces.

Description

technical field [0001] The invention relates to bridge engineering construction technology, in particular to a connection structure and a construction method of a prefabricated assembled corrugated steel web combined box girder roof. Background technique [0002] The steel-concrete composite structure bridge is a bridge construction structure in which steel members and concrete members are connected as a whole through shear connectors, participate in the force together, and can give full play to the compressive performance of concrete and the tensile performance of steel. In recent years, a steel-concrete composite beam that is connected by a concrete roof, floor and corrugated steel web through shear connectors is more reasonable in structure, can give full play to the properties of materials, and is convenient and fast in construction, so it has been widely used. The shear connector is the key quality point of the steel-concrete composite structure bridge. It is related to...

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 李志勇王银辉陈孟冲王松林张乾坤周立平方梁正王开太翁沙羚徐志荣石鑫磊
Owner NINGBO COMM PLANNING INST CO LTD
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