Title:
ROOF STRUCTURAL BODY AND METHOD OF MANUFACTURING THE ROOF STRUCTURAL BODY
Document Type and Number:
WIPO Patent Application WO/2001/009452
Kind Code:
A1
Abstract:
A roof structural body using steel materials, capable of providing a necessary strength even if a thickness is small and being connected even if connection members are absent, comprising a lower chord member (18) installed horizontally, an upper chord member (12) having a lower end connected to the lower chord member, and a web member (20) connecting the lower chord material to the upper end of the upper chord material, wherein at least one of the lower chord material, upper chord material, and web material has a structural element having a cross section including three grooves having opening directions different from each other and uniform in longitudinal direction.
Inventors:
SAWADA TAIICHI (AU)
Application Number:
PCT/JP2000/004954
Publication Date:
February 08, 2001
Filing Date:
July 25, 2000
Export Citation:
Assignee:
CDS INTERNAT CO LTD (JP)
SAWADA TAIICHI (AU)
SAWADA TAIICHI (AU)
International Classes:
E04B7/02; E04C3/07; E04C3/11; E04C3/04; (IPC1-7): E04B7/02; E04C3/11
Foreign References:
| US5542227A | 1996-08-06 | |||
| JPH0111993A | ||||
| JPH0281828U | 1990-06-25 | |||
| JPS5225171B2 | 1977-07-06 | |||
| JPH10238008A | 1998-09-08 |
Attorney, Agent or Firm:
Nakahata, Takashi (Nishikamata Ohta-ku Tokyo, JP)
Download PDF:
Previous Patent: WALL STRUCTURAL BODY AND METHOD OF MANUFACTURING THE WALL STRUCTURAL BODY
Next Patent: METHOD OF SECURING A CEILING
Next Patent: METHOD OF SECURING A CEILING