Title:
SQUARE STEEL PIPE FOR BEAM-COLUMN JOINT, BEAM-COLUMN JOINT STRUCTURE USING SAME, AND METHOD FOR MANUFACTURING SQUARE STEEL PIPE
Document Type and Number:
WIPO Patent Application WO/2021/187115
Kind Code:
A1
Abstract:
In a square steel pipe for a beam-column joint of a square steel pipe column and a steel beam, the radius of curvature of a corner is reduced and the occurrence of warpage on the flat portion of the cross section of the square steel pipe is suppressed while ensuring the wall thickness that can be used for joining the steel beam. The side length L and the wall thickness t of the four flat portions of the cross section perpendicular to the pipe axis direction of the square steel pipe satisfy the relationship of L/t ≤ 10.5, and at least one radius C of curvature of the four corner portions of the cross section satisfies the relationship of C/t ≤ 0.8 with the wall thickness t of the flat portion.
Inventors:
SASAKI SHUNSUKE (JP)
UMEDA TOSHIHIRO (JP)
UMEDA TOSHIHIRO (JP)
Application Number:
PCT/JP2021/008226
Publication Date:
September 23, 2021
Filing Date:
March 03, 2021
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
E04B1/24; E04B1/58
Foreign References:
| JP2001355286A | 2001-12-26 | |||
| JP2011132745A | 2011-07-07 | |||
| JP2007303107A | 2007-11-22 |
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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