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Method for manufacturing bent box-shaped steel tower segment

A manufacturing method, bending and torsion technology, applied to bridge parts, bridges, buildings, etc., can solve the problems of complex manufacturing process and achieve the effect of precise control

Active Publication Date: 2018-09-18
CHINA RAILWAY SHANQIAO GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the bent-torsion box-shaped steel tower structure, the steel tower segment is a box-shaped section with nonlinear changes, and the manufacturing process is complicated

Method used

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  • Method for manufacturing bent box-shaped steel tower segment
  • Method for manufacturing bent box-shaped steel tower segment
  • Method for manufacturing bent box-shaped steel tower segment

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0032] A method for manufacturing a section of a bent-twisted box-shaped steel tower, comprising manufacturing a bent-twisted profile plate unit and manufacturing a bent-twisted box-shaped section.

[0033] The manufacturing process of the bent-twisted shape plate unit specifically includes the following steps:

[0034] Step 1.1: Use the computer stereoscopic lofting to produce the curved and twisted shape plate unit;

[0035] Step 1.2: Establish the local coordinate system of the plate unit. The local coordinate system o...

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Abstract

The invention discloses a method for manufacturing a bent box-shaped steel tower segment. The method comprises bent plate unit manufacturing and bent box-shaped segment manufacturing. Bent plate unitmanufacturing comprises the main process that a steel plate is pressed, an adjustable sample plate is used for carrying out pressing check on plate units, and real-time forming adjustment is carried out; after pressing is qualified, the plate units are aligned and placed on a bending bed jig, and other parts are welded; and after welding is completed, the appearances of the bent plate units are subjected to finishing. Bent box-shaped segment manufacturing comprises the main process that on the basis of the bending bed jig, segments are assembled layer by layer from bottom to top and from inside to outside, and the relative positions of the plates on all layers of end openings of the segments and the matching tolerance of the segments are strictly controlled.

Description

technical field [0001] The invention relates to the technical field of bridge cable tower processing and manufacturing, in particular to a method for manufacturing a section of a bent-torsion box-shaped steel tower. Background technique [0002] The bridge cable tower is a tower-shaped structure supporting the main cable of a suspension bridge or a cable-stayed bridge. Its cross section can be a solid section. When the section size is large, it should be I-shaped or box-shaped. It is more reasonable to use box section for long-span cable-stayed bridges. [0003] Cable towers are generally divided into concrete cable towers and steel towers according to structural materials. The cross-section of steel towers is mostly box-shaped, and the common ones are rectangular, circular, triangular, and various cross-sections that are changed from the basic cross-section. In the height direction of the steel tower, because the structural force gradually decreases from bottom to top, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00E01D19/14
Inventor 李峰胡广瑞付常谊乔新旺刘申潘丽婷周宇娟冯杨朱庆菊罗政军赵有亮
Owner CHINA RAILWAY SHANQIAO GRP CO LTD