EP 0420973 B1 19920715 - PROCESS FOR THE MANUFACTURE OF A FRAMEWORK FOR REINFORCING CONCRETE STRUCTURES AND FRAMEWORK OBTAINED
Title (en)
PROCESS FOR THE MANUFACTURE OF A FRAMEWORK FOR REINFORCING CONCRETE STRUCTURES AND FRAMEWORK OBTAINED
Publication
Application
Priority
FR 8904679 A 19890410
Abstract (en)
[origin: WO9012175A1] According to a process for the manufacture of a framework (1) for reinforcing concrete structures and, in particular, concrete slab or shell structures in the form of a steel strip (3) with notched or goffered surfaces, a hot laminated sheet is used as a basis material having a width of between 1.5 and 6 mm, whereby said sheet is made of steel with a carbon content of less than 0.9 %, and elastic limit of approximately 500 MPa. Said sheet is subjected to a cold lamination process at a strength-hardening level greater than 40 % in order to obtain a sheet having, on the one hand, a thickness of between 0.8 and 2.5 mm, and on the other hand, an elastic limit greater than 700 MPa, whereby the sheet is split again so as to obtain a steel strip (3) which is then continuously notched or goffered. The application also concerns the framework obtained according to the process.
IPC 1-7
IPC 8 full level
B21H 7/00 (2006.01); C12N 15/09 (2006.01); E01C 11/18 (2006.01); E04C 5/03 (2006.01); E04C 5/04 (2006.01)
CPC (source: EP US)
B21H 8/005 (2013.01 - EP US); E01C 11/18 (2013.01 - EP US); E04C 5/03 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 9012175 A1 19901018; CA 2029905 A1 19901011; EP 0420973 A1 19910410; EP 0420973 B1 19920715; ES 2034860 T3 19930401; FR 2645562 A1 19901012; FR 2645562 B1 19921127; JP 2704042 B2 19980126; JP H03505358 A 19911121; US 5154534 A 19921013; ZA 902755 B 19911127
DOCDB simple family (application)
FR 9000259 W 19900410; CA 2029905 A 19900404; EP 90907125 A 19900410; ES 90907125 T 19900410; FR 8904679 A 19890410; JP 50695190 A 19900410; US 60375290 A 19901106; ZA 902755 A 19900410