Title:
橋梁、及び橋梁を製造する方法
Document Type and Number:
Japanese Patent JP2009541615
Kind Code:
A
Abstract:
The bridge is constructed of one inner tube and an outer tube surrounding the inner tube. The inner and outer tube are joined to each other by connecting pipes welded to the outer surface of the inner tube and to the inner surface of the outer tube so that the inner tube and the outer tube are connected to each other through said connecting pipes whereby a rigid composite structure is formed. The tubes and pipes are preferably laser welded to each other, preferably by a continuous seam.
Inventors:
Mietinen, Encio, Johannes
Application Number:
JP2009515900A
Publication Date:
November 26, 2009
Filing Date:
June 20, 2006
Export Citation:
Assignee:
Mietinen, Encio, Johannes
International Classes:
E01D2/00; E01D1/00; E01D21/00
Domestic Patent References:
| JPS5236835U | 1977-03-15 | |||
| JPS5236835U | 1977-03-15 |
Foreign References:
| WO1990006401A1 | 1990-06-14 | |||
| US4704754A | 1987-11-10 | |||
| US3808624A | 1974-05-07 | |||
| WO1990006401A1 | 1990-06-14 | |||
| US4704754A | 1987-11-10 | |||
| US3808624A | 1974-05-07 |
Attorney, Agent or Firm:
Ryoichi Takaoka