Title:
RIGID JOINING STRUCTURE BETWEEN SQUARE STEEL PIPE COLUMNS
Document Type and Number:
Japanese Patent JP2702882
Kind Code:
B2
Abstract:
PURPOSE: To perform simple and firm rigid interjoining of upper and lower square steel pipe columns.
CONSTITUTION: Stiffening plates 2 and 3 are arranged on the obverse and the reverse of a joint between upper and lower square steel pipe columns 1A and 1B and fixed to the square steel pipe columns 1A and 1B by a one-side bolt 4. The one side bolt 4 is formed in such a manner that a pin 12 is covered with a first sleeve 13, a second sleeve 15, a grip adjuster 17, a washer 18, and a collar 19. The pin 12 has an uneven peripheral surface part 12c, a rupture groove 12b, and a pin head part 12a. The second sleeve 15 is formed in a tapered shape in which the outside diameter surface of one end part is inserted in the first sleeve 13 to forcibly spread the first sleeve 13. A grip adjuster 17 is broken by a given load in an axial direction. The collar 19 has a bore surface which is plastically deformed in a state to cut through an uneven peripheral surface part 12c of the pin 12 through reduction of the outside diameter.
Inventors:
Akira Fukuda
Kenji Furuumi
Kenji Furuumi
Application Number:
JP7273694A
Publication Date:
January 26, 1998
Filing Date:
March 16, 1994
Export Citation:
Assignee:
DAIWA HOUSE INDUSTRY CO.,LTD.
International Classes:
E04B1/24; E04B1/58; (IPC1-7): E04B1/24; E04B1/58
Attorney, Agent or Firm:
Masashi Noda (1 person outside)
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