Title:
PURLINE WITH TWO-LAYER FLANGES AND METHOD FOR PREPARING SAME
Document Type and Number:
WIPO Patent Application WO/2024/036675
Kind Code:
A1
Abstract:
A purline with two-layer flanges (1) and a method for preparing same. Flanges of the purline are each folded to form a two-layer flange (1), and folded steel plates of the two-layer flange (1) are partially welded and fixed to each other. In the present technical solution, the flanges of cold-formed section steel are folded in half, such that the effect of thickening the flanges is achieved. Compared with a purline with uniform material, the anti-bending inertia moment of the purline is effectively increased in the present technical solution, without increasing the amount of steel used in the purline. Similarly, compared with a purline having the same inertia moment, the amount of steel used in the purline in the present technical solution is greatly reduced. In addition, the two-layer steel plates of the flange are partially welded, such that the purline with the two-layer flange (1) is stressed as a whole to ensure that the two-layer flange (1) does not split, thereby ensuring the bearing capacity thereof. In a machining method in the present technical solution, the simple processes of cold bending, welding and folding are mainly used for preparation, such that an increase in manufacturing costs is limited, thereby significantly improving the economy brought by the product performance.
Inventors:
CHEN MING (CN)
CHEN JIAMEI (CN)
TANG PENG (CN)
CHEN JIAMEI (CN)
TANG PENG (CN)
Application Number:
PCT/CN2022/118293
Publication Date:
February 22, 2024
Filing Date:
September 13, 2022
Export Citation:
Assignee:
NANTONG OUBEN CONSTRUCTION TECH CO LTD (CN)
International Classes:
E04C3/07; B21D21/00; B23K37/00; E04B1/58; E04C3/04; E04D12/00
Domestic Patent References:
| WO2011009204A1 | 2011-01-27 | |||
| WO2020149752A1 | 2020-07-23 |
Foreign References:
| CN1218751A | 1999-06-09 | |||
| CN101708513A | 2010-05-19 | |||
| CN101484650A | 2009-07-15 | |||
| CN109972787A | 2019-07-05 | |||
| US6073414A | 2000-06-13 |
Attorney, Agent or Firm:
SHANGHAI BANGDE PATENT AGENCY (CN)
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