Welding method and steel plate deck

• US 7,921,562 B2
• Filed: 06/27/2008
• Issued: 04/12/2011
• Est. Priority Date: 07/17/2007
• Status: Active Grant

• Current Assignee: IHI Infrastructure Systems Co. Ltd. (IHI Corporation), Klaus Schmidt
• Original Assignee: IHI Corporation, Klaus Schmidt
• Inventors: Matsuoka, Tsutomu, Fujiwara, Masashi, Nishiyama, Shigeki, Kiji, Noboru, Ota, Makoto
• Primary Examiner(s): Chapman; Jeanette E.
• Application Number:
  US12/147,712
• Publication Number:
  US 20090019809A1
• Time in Patent Office: 1,019 Days
• Field of Search: 298/40, 298/60, 29878-880, 298/880.91, 298/880.92, 298/901.26, 298/901.32, 294/021.6, 294/021.2, 294/021.3, 298/900.39, 298/901.2, 298/973, 298/973.1, 298/973.12, 298/973.2, 298/97, 298/971.5, 298/980.7, 528/40, 527/831.1, 527/837, 527/831.9, 527/981, 527/450.7, 527/831.4, 219/121.64
• US Class Current: 29/897
• CPC Class Codes: B23K 2101/18 Sheet panels
• CPC Class Codes: B23K 2103/04 Steel or steel alloys
• CPC Class Codes: B23K 33/004 Filling of continuous seams
• CPC Class Codes: B23K 9/0256 for welding ribs on plates
• CPC Class Codes: B23K 9/18 Submerged-arc welding
• CPC Class Codes: Y10T 29/49616 Structural member making
• CPC Class Codes: Y10T 29/49623 Static structure, e.g., a building component
• CPC Class Codes: Y10T 29/49625 Openwork, e.g., a truss, joist, frame, lattice-type or box beam
• CPC Class Codes: Y10T 29/49629 Panel

Abstract

A method of welding a deck plate and a closed section rib both constituting a steel plate deck, comprising: working a root portion of the closed section rib to have a flat surface in parallel with a surface of the deck plate; and welding the deck plate and the closed section rib while making the flat surface of the closed section rib to be in contact with the surface of the deck plate.

Claims

1. A method of welding a deck plate and a closed section rib both constituting a steel plat, wherein

the deck plate is comprised of a steel plate having a first thickness;

the closed section rib is comprised of a steel plate having a second thickness, the rib comprising the steel plate thereof bent to define a rib, to define an edge of the steel plate forming the rib, and to define a root portion formed at the edge of the steel plate forming the rib;

the method comprising;

working the root portion of the closed section rib to have a flat surface in parallel with a surface of the deck plate, wherein a dimension of the flat surface along a surface direction of the steel plate deck is 5% to 50% of a thickness of the steel plate deck forming the closed section rib; and

welding the deck plate and the closed section rib while making the flat surface of the closed section rib be in contact with the surface of the steel deck plate.

2. A method of welding a deck plate and a closed section rib according to claim 1, wherein the welding is performed such that the penetration formed by the welding covers a portion of the flat surface.

3. A method of welding a deck plate and a closed section rib according to claim 1, wherein a setting angle between the steel plate forming the rib and the deck plate is in a range of 65°

to 85°

.

4. A method of welding a deck plate and a closed section rib according to claim 1, wherein the weld zone id formed by a single step welding by submerged arc welding or gas-shielded metal arc welding.