HIGH-STRENGTH PC STEEL STRANDED WIRE, PROCESS FOR MANUFACTURING THE SAME, AND CONCRETE STRUCTURE UTILIZING THE WIRE

Title:

HIGH-STRENGTH PC STEEL STRANDED WIRE, PROCESS FOR MANUFACTURING THE SAME, AND CONCRETE STRUCTURE UTILIZING THE WIRE

Document Type and Number:

WIPO Patent Application WO/2007/097354

Kind Code:

A1

Abstract:

A PC steel stranded wire that has a strength greater than in the prior art, being suitable for practical application; and a concrete structure utilizing the same. The high-strength PC steel stranded wire that has a strength greater than in the prior art, being suitable for practical application, can be manufactured by fabricating of a 7-wire stranded structure through stranding of one center wire together with six side wires and by regulating thereof so as to realize an outside diameter of 15.0 to 16.1 mm, a total cross section area of 135 mm2 or more and a load at 0.2% permanent elongation, or load at 0.1% permanent elongation, of 266 kN or greater.

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Inventors:

MAEKAWA TOMOYA (JP)
NIKI TOSHIHIKO (JP)
ICHIKI TAKASHI (JP)

Application Number:

PCT/JP2007/053154

Publication Date:

August 30, 2007

Filing Date:

February 21, 2007

Export Citation:

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Assignee:

SUMITOMO SEI STEEL WIRE CORP (JP)
MAEKAWA TOMOYA (JP)
NIKI TOSHIHIKO (JP)
ICHIKI TAKASHI (JP)

International Classes:

D07B1/06; E04B1/22

Foreign References:

JPH05163688A	1993-06-29
JPH1077587A	1998-03-24
JPH10331330A	1998-12-15
JP2003113585A	2003-04-18

Other References: