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A manufacturing method of a double-curved fish-belly continuous box girder variable-section steel formwork

A production method and technology for steel formwork, which are applied in the directions of manufacturing tools, auxiliary welding equipment, welding equipment, etc., can solve the problems of difficulty in ensuring the construction quality of the overall smoothness of the appearance of the landscape bridge, low difficulty in production and assembly, and increased construction difficulty. To achieve the effect of improving the visual quality, fast construction speed and ensuring construction quality

Active Publication Date: 2020-05-01
CHINA FIRST METALLURGICAL GROUP
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Problems solved by technology

The assembly of formwork in the construction of ordinary fish-belly continuous box girder is relatively regular, and the difficulty of production and assembly is relatively low. If the traditional production process is used, it is difficult to ensure the construction quality and the overall smoothness of the appearance of the landscape bridge, and the construction difficulty will increase greatly. Extend the construction period

Method used

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  • A manufacturing method of a double-curved fish-belly continuous box girder variable-section steel formwork
  • A manufacturing method of a double-curved fish-belly continuous box girder variable-section steel formwork
  • A manufacturing method of a double-curved fish-belly continuous box girder variable-section steel formwork

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:

[0031] The manufacturing method of the double-curved fish-belly continuous box girder variable-section steel formwork designed by the present invention, the specific operation process is as follows:

[0032] 1. First, use drawing software, CAD or BIM to carry out three-dimensional modeling, and then use total station and calipers to measure and collect the deviation data of the position of the wrong platform. Lofting technology, which divides the three-dimensional curved bottom mold into small unit templates of various specifications. On the one hand, the division is based on the requirement of designing variable cross-section arcs. The panels at positions with large radii are relatively large, and the panels at positions with small radii are divided into smaller pieces, taking into account the difficulty of splicing and fabrication; on the...

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Abstract

The invention discloses a manufacturing method of a double-curved-surface fish-bellied continuous box beam variable-cross-section steel moulding plate. Steel moulding plate longitudinal ribs, cross ribs, steel plates, support short pillars and cross beams are processed and manufactured to form the double-curved-surface fish-bellied continuous box beam variable-cross-section steel moulding plate byutilizing a self-made steel moulding plate manufacturing device. During the manufacturing process, a BIM technology is utilized for modeling and dividing plates, assembling is carried out on the steel moulding plate manufacturing device, the whole manufacturing process is accomplished by welding, adjacent moulding plates are assembled by utilizing a flanging bolt, and the formed moulding plate issmooth in surface so as to achieve the forming quality, so that the difficulty in manufacturing and constructing technology of the double-curved-surface fish-bellied continuous box beam variable-cross-section steel moulding plate is solved.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering construction, in particular to a method for manufacturing a double-curved fish-belly continuous box girder variable-section steel template. Background technique [0002] In recent years, with the rapid development of the construction industry, urban bridges have higher and higher requirements for landscape, and fish-belly box girders are often used in design. Most of the continuous belly box girders are of constant section, and the formwork assembly is relatively regular in the construction of the box girder, while the shape and structure of the fish-belly steel box girder with curved variable cross-section are complex, which brings new challenges to the construction. The fish-belly continuous box girder steel formwork with curved variable cross-section is wavy and widened on the plane, and wavy and high on the longitudinal plane. Viewed horizontally, the height of the web varies, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23K37/00B23K101/28
CPCB23K37/00B23P15/00
Inventor 徐攀殷滇杨多娇杨德志张德松
Owner CHINA FIRST METALLURGICAL GROUP
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