EP 1706553 B1 20080423 - METHOD FOR THE PRODUCTION OF DOUBLE-BENT SHELLS
Title (en)
METHOD FOR THE PRODUCTION OF DOUBLE-BENT SHELLS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON ZWEIFACH GEKRÜMMTEN SCHALEN
Title (fr)
PROCEDE DE REALISATION DE COQUES A DOUBLE COURBURE
Publication
Application
Priority
- AT 2005000006 W 20050114
- AT 402004 A 20040114
Abstract (en)
[origin: WO2005068740A1] The aim of the invention is to be able to produce a shell that is curved twice in a three-dimensional manner without using formwork and without joining together arc-shaped elements. Said aim is achieved by a method that is characterized by the following steps: - a basal area (12) exceeding the area of the double-bent shell (10) is initially measured on a working area (15), preferably a plane; - a subarea of said basal area (12), which corresponds approximately to the difference between the basal area (12) and the area of the shell (10), is coated with at least one soft first material (20) having a low elastic modulus while a remaining subarea of the basal area (12) is coated with at least one second material (22) whose elastic modulus substantially exceeds the elastic modulus of the first material (20) and whose resistance to pressure is greater than that of the first material, at least one subarea coated with the first material (20) being located between two subareas of the basal area (12) that are coated with the second material (21); - a plate (14) having orthotropic properties, such as stiffness, is formed; - the basal area (12) of the plate (14) is then reduced such that the double-bent shell (10) is formed.
IPC 8 full level
E04B 7/10 (2006.01)
CPC (source: EP)
E04B 1/3205 (2013.01); E04B 7/102 (2013.01); E04B 2001/3276 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005068740 A1 20050728; WO 2005068740 A8 20060209; AT E393272 T1 20080515; DE 502005003834 D1 20080605; EP 1706553 A1 20061004; EP 1706553 B1 20080423
DOCDB simple family (application)
AT 2005000006 W 20050114; AT 05700007 T 20050114; DE 502005003834 T 20050114; EP 05700007 A 20050114