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Multi-curvature radius twisted steel pipe and making method thereof

A manufacturing method and a technology of radius of curvature are applied in the production of this kind of bending and torsion steel pipe, in the field of bending and torsion steel pipe with multiple curvature radii. Problems such as poor arc smooth quality, to achieve the effect of saving labor hours, beautiful appearance and improving quality

Active Publication Date: 2011-09-21
JIANGSU HUNING STEEL MECHANISM
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] 2) Each subsection needs to be butt jointed and lengthened after passing the processing, the number of subsections is large, and the workload of welding and testing is heavy;
[0006] 3) After the small segments are docked, deformation is easy to occur, and the linear arc at the butt transition is difficult to control, and the workload of flame correction is large;
[0007] 4) The more the number of joints, the worse the arc compliance quality of the entire bent and twisted steel pipe

Method used

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  • Multi-curvature radius twisted steel pipe and making method thereof
  • Multi-curvature radius twisted steel pipe and making method thereof
  • Multi-curvature radius twisted steel pipe and making method thereof

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Embodiment

[0044] Such as figure 1 The shown multi-curvature radius twisted steel pipe is composed of nine segments with small curvature radii on different planes.

[0045] This embodiment also discloses a method for manufacturing the above-mentioned curved and twisted steel pipe with multiple curvature radii. The specific steps of the method are as follows:

[0046] (a) Use computer to deepen the design of multi-curvature-radius bent-torsion steel pipes to make an overall model;

[0047] (b) Divide the overall model into small segments according to a single curvature radius, and each curvature radius is divided into a small segment. In this embodiment, a single bent-torsion steel pipe has 9 small segments: R1, R2, R3, R4, R5, R6, R7, R8, R9;

[0048] (c) Divide every three small sections into a partition, and place one partition on a steel pipe for processing; thus, three partitions are formed: R1, R2, R3 are one partition; R4, R5, R6 are one Partition; R7, R8, R9 are one partition; ...

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Abstract

The invention discloses a multi-curvature radius twisted steel pipe. The twisted steel pipe consists of two or more curvature radius subsections. The invention also provides a making method of the twisted steel pipe. The method comprises the following steps of: making an integral model of the multi-curvature radius twisted steel pipe; dividing the integral model into subsections according to single curvature radius; dividing two or more subsections into a subarea, placing the subarea on a steel pipe, and machining and shaping; and making an assembly jig frame of the twisted steel pipe, hoisting the finished subareas onto the assembly jig frame, positioning, assembling and welding. The multi-curvature radius twisted steel pipe has attractive shape and smooth transition; compared with the conventional machining method, the method reduces the joint number of the twisted steel pipe; working time and energy are saved; and the quality of the twisted steel pipe is greatly improved, and the service life of the twisted steel pipe is prolonged.

Description

technical field [0001] The invention relates to a bent and twisted steel pipe and a manufacturing method thereof, in particular to a bent and twisted steel pipe with multiple curvature radii and a manufacturing method for processing the bent and twisted steel pipe. Background technique [0002] Wuxi Grand Theater stands on the south bank of Lihu Lake, with a total construction area of ​​more than 70,000 square meters. From the point of view of the overall design appearance, the Grand Theater is composed of volume A and volume B. Among them, volume A is composed of five huge leaf-shaped buildings, which is the main auditorium that can accommodate more than 1,700 audiences; volume B is composed of three leaf-shaped buildings, which is a multi-functional hall that can accommodate more than 700 audiences . The steel structure system of this project is a complex curved space grid pipe truss system, which is basically separated from the lower concrete structure and forms a self-...

Claims

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Application Information

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IPC IPC(8): E04B1/24E04G21/00
Inventor 钱志忠苏中海马志伟徐其君丁建强赵明祥
Owner JIANGSU HUNING STEEL MECHANISM
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