EP 0122502 A3 19860917 - CONCRETE JOIST OR SUPPORTING SLAB OR THE LIKE
Title (en)
CONCRETE JOIST OR SUPPORTING SLAB OR THE LIKE
Publication
Application
Priority
DE 3310482 A 19830323
Abstract (en)
[origin: EP0122502A2] In order to save concrete in the case of concrete joists, supporting slabs or the like, and thus to reduce the weight, as well as to achieve greater spans and a higher loading capacity, the upper and/or the lower curves (7, 8) of cavities (6) provided in the concrete joist are constructed in the form of ellipses or false ellipses. If a wire reinforcement is provided, some of the lower wires (9) are wrapped from their interface into the joist, over a section, in a foil (10) in order to prevent excessive stresses and facial cracks in the force-introducing region. Furthermore, in the case of a concrete joist, supporting slab or the like having a joint (12), the latter is provided as a recess (15) in the side face (14), bevels (16, 17) being provided at the top and at the bottom in order to form diagonal struts in the jointed concrete. <IMAGE>
IPC 1-7
IPC 8 full level
E04B 5/02 (2006.01); E04C 2/06 (2006.01); E04C 3/20 (2006.01)
CPC (source: EP)
E04B 5/043 (2013.01); E04C 2/06 (2013.01)
Citation (search report)
- [X] BE 693967 A 19670717
- [X] DE 1022144 C
- [A] DE 2504122 A1 19760805 - HOCHTIEF AG HOCH TIEFBAUTEN
- [A] CH 430130 A 19670215 - RHEINQUELL ETS [LI]
- [A] DE 826190 C 19511227 - ANNA ERNESTINE BRAKEMEIER GEB
- [X] FRICK/KN\LL/NEUMANN: "Baukonstruktionslehre", Teil 1, 26. Auflage, Seite 180; B.G. Teubner, Stuttgart, 1975
Designated contracting state (EPC)
AT BE FR LU NL SE
DOCDB simple family (publication)
EP 0122502 A2 19841024; EP 0122502 A3 19860917; DE 3310482 A1 19840927; DK 163184 A 19840924; DK 163184 D0 19840322; FI 841162 A0 19840322; FI 841162 A 19840924; NO 841137 L 19840924
DOCDB simple family (application)
EP 84103100 A 19840321; DE 3310482 A 19830323; DK 163184 A 19840322; FI 841162 A 19840322; NO 841137 A 19840322