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Patent Searching and Data


Title:
LIPPED SHAPE STEEL
Document Type and Number:
Japanese Patent JP2005105557
Kind Code:
A
Abstract:

To provide a lipped shape steel or a lipped channel steel while extending the lip length C of a lipped channel steel or a lipped Z-shaped steel having a plate thickness of < 2.3 mm to a range that the strength has been heretofore considered to decrease.

The plate thickness t is <2.3 mm and the lip length Cd is optimized by the formula; Cd=-0.0032A2 +0.8A-7.5, the lip length Cd has an upper limit of Cd=-0.0032A2 +0.8A+ 1 and a lower limit of Cd=-0.0032A2 + 0.8A -16, Accordingly, Cd is partitioned by these ranges. A lipped channel steel characterized by (Cd is ≥25mm) is a lipped Z-shaped steel, where, A is a flange width.


Inventors:
HANYA KOJI
SUGANO RYOICHI
Application Number:
JP2003000336918
Publication Date:
April 21, 2005
Filing Date:
September 29, 2003
Export Citation:
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Assignee:
NIPPON STEEL CORP
International Classes:
E04C3/06; (IPC1-7): E04C3/06
Attorney, Agent or Firm:
林 信之
片寄 武彦