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(11)

EP 2 304 116 A1

(12)

(43) Date of publication: 06.04.2011 Bulletin 2011/14 (21) Application number: 09761182.6 (22) Date of filing: 12.06.2009

(51) International Patent Classification (IPC):  E04B 1/38(2006.01) E04C 2/40(2006.01) E04C 1/40(2006.01) E04B 2/00(2006.01) E04B 5/00(2006.01) E04B 1/21(2006.01) E04G 21/14(2006.01) E04C 2/08(2006.01) (86) International application number: PCT/AU2009/000748 (87) International publication number: WO 2009/149517 (17.12.2009 Gazette 2009/51)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 13.06.2008 AU 2008903016 (71) Applicant: Bluescope Steel Limited Melbourne, VIC 3000 (AU)	(72) Inventors: KRALIC, John Frank Mount Pleasant New South Wales 2519 (AU) RYAN, Brad Stewart Marshall Mount New South Wales 2530 (AU) (74) Representative: Hedges, Martin Nicholas  A.A. Thornton & Co. 235 High Holborn London WC1V 7LE London WC1V 7LE (GB)