Manufacturing method of space curve profile steel component

A technology of spatial curve and manufacturing method, applied in the field of manufacturing of spatially curved steel members, can solve the problems of difficult to achieve beautiful appearance of bridges, uneven line shape of bridges, etc., and achieve the effects of low cost, increased manufacturing cost and quality assurance

Active Publication Date: 2016-04-20
CHINA RAILWAY BAOJI BRIDGE GRP
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Problems solved by technology

In the past, the straight line was used instead of the curved line to adjust the overall line type through the joints, but the final bridge line typ

Method used

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  • Manufacturing method of space curve profile steel component
  • Manufacturing method of space curve profile steel component
  • Manufacturing method of space curve profile steel component

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Embodiment 1

[0018] Embodiment 1: with reference to attached figure 1 -5. A manufacturing method of space curved steel components, (1) parts production requirements: the steel plate must be pretreated to eliminate the rolling stress and transportation residual stress in the steel plate, and the three-dimensional analysis software is used to loft the curved structure to obtain the expansion of the space curved plate Shape, combined with the manufacturing process to add flame cutting compensation amount, deformation process amount, welding process amount, etc., through high-precision numerical control flame cutting equipment to make parts; for the partition of the space curved steel component, because it is an inner tube assembled by steel components , the size should be strictly controlled and realized by mechanical processing; (2) surface forming requirements: according to the line shape of the space curve plate, analyze and calculate the minimum curvature of the space curve plate along th...

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Abstract

The invention relates to a manufacturing method of a space curve profile steel component. The manufacturing method comprises the following steps: (1) part manufacturing: three-dimensional analysis software is adopted to loft a curve structure to obtain an unfolding shape of a space curve plate; a process quantity is added; and a part is produced through high-precision numerical control flame cutting equipment; (2) curved surface forming requirement: the minimum curvature in the plate length direction is calculated by analyzing the space curve plate; roller plate equipment is used for prebending; and a characteristic point reaches a designed linetype requirement by a numerical control ejection mode; (3) plate unit production requirement: a special jig model is clamped; reinforcing ribs are assembled in sequence; the assembly gaps and angles of the reinforcing ribs are controlled; and a process with low line energy can be adopted to weld during welding; and (4) steel component production requirement: a special jig model is produced according to the characteristic point; the tightness between a baseplate of the steel component and the jig model is guaranteed; separation plates and other plates are assembled in sequence; and the tightness of all the plates is guaranteed to realize whole linetype of the structure.

Description

technical field [0001] The invention relates to a kind of box-shaped steel components such as space curved steel box girders and steel rods, which adopts the method of classification and combined application of multiple manufacturing technologies to control the space line shape of the manufactured steel components so as to make them meet the design structure requirements A method for manufacturing a space curve steel component. Background technique [0002] In recent years, the construction of urban steel structures and steel bridges has developed rapidly, especially the market for urban ramp steel bridges is increasing day by day. The structural design of urban ramp bridges mostly adopts box-type and rod structures, and the structural form is densely reinforced in a small space. It belongs to the combined line structure of plane curve, vertical curve and twisted line. [0003] At present, the manufacturing technology of steel members of plane line and vertical line is rel...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 王晓辉康玉梅张亚娟李拴林雷云曹伟
Owner CHINA RAILWAY BAOJI BRIDGE GRP
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