(19)
(11)
EP 2 076 637 A1
(12)
(43)
Date of publication:
08.07.2009
Bulletin 2009/28
(21)
Application number:
07730548.0
(22)
Date of filing:
30.03.2007
(51)
International Patent Classification (IPC):
E04B
5/10
(2006.01)
E04B
5/43
(2006.01)
E04B
5/32
(2006.01)
(86)
International application number:
PCT/FI2007/000079
(87)
International publication number:
WO 2008/023086
(
28.02.2008
Gazette 2008/09)
(84)
Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
(30)
Priority:
25.08.2006
FI 20060760
(71)
Applicant:
RAUTARUUKKI OYJ
00811 Helsinki (FI)
(72)
Inventors:
KANSA, Jouko
21280 Raisio (FI)
JENSÉN, Jan
25840 Nivelax (FI)
HEINISUO, Markku
33500 Tampere (FI)
(74)
Representative:
Laako, Tero Jussi
Berggren Oy Ab P.O. Box 16
00101 Helsinki
00101 Helsinki (FI)
(54)
STIFFENING OF LOAD-BEARING INTERMEDIATE FLOOR SLABS IN BUILDINGS