EP 0624697 A1 19941117 - Stressed steel reinforcement for prestressed concrete sleepers with grouted anchoring.
Title (en)
Stressed steel reinforcement for prestressed concrete sleepers with grouted anchoring.
Title (de)
Spannstahlbewehrung in Spannbetonschwellen mit Vorspannung mit nachträglichem Verbund.
Title (fr)
Armature tendue en acier pour traverses en béton précontraint avec ancrage injecté.
Publication
Application
Priority
DE 4315402 A 19930508
Abstract (en)
In order to avoid permanent cracks in the case of prestressed-concrete sleepers with post-tensioning which are subjected to high loading, it is proposed to use as stressing reinforcement, in place of the hitherto-used smooth hairpin-shaped stressing bars, those of profiled cold-drawn steel. <IMAGE>
Abstract (de)
Um bei hochbeanspruchten Spannbetonschwellen mit nachträglichem Verbund die Bildung von bleibenden Rissen zu vermeiden wird vorgeschlagen, als Spannbewehrung anstelle der bisher verwendeten glatten haarnadelförmigen Spannstäbe solche aus profiliertem kaltgezogenen Stahl zu verwenden. <IMAGE>
IPC 1-7
IPC 8 full level
B28B 7/30 (2006.01); B28B 23/04 (2006.01); B28B 23/06 (2006.01); E01B 3/34 (2006.01); E04C 3/26 (2006.01); E04C 5/03 (2006.01); E04C 5/08 (2006.01); E04C 5/10 (2006.01)
CPC (source: EP)
B28B 7/303 (2013.01); B28B 23/046 (2013.01); B28B 23/06 (2013.01); E01B 3/34 (2013.01); E04C 3/26 (2013.01); E04C 5/03 (2013.01); E04C 5/08 (2013.01); E04C 5/10 (2013.01)
Citation (search report)
- [Y] DE 1058909 B 19590604 - WERNER KARIG DR ING
- [Y] DE 1084464 B 19600630 - MOOSSCHE EISENWERKE AG
- [Y] US 3494164 A 19700210 - REHM GALLUS, et al
- [Y] DE 1035606 B 19580807 - BAUSTAHLGEWEBE GMBH
- [Y] BE 479679 A
- [Y] SOVIET INVENTIONS ILLUSTRATED Derwent World Patents Index; AN 177062
- [Y] PATENT ABSTRACTS OF JAPAN vol. 9, no. 215 (M - 409) 3 September 1985 (1985-09-03)
Designated contracting state (EPC)
AT CH DE ES FR IT LI PT
DOCDB simple family (publication)
EP 0624697 A1 19941117; EP 0624697 B1 20000719; AT E194862 T1 20000815; DE 59409453 D1 20000824; EP 0625414 A1 19941123; ES 1026242 U 19940401; ES 1026242 Y 19940901; ES 2112216 T1 19980401; ES 2112216 T3 20001101; PT 624697 E 20001229
DOCDB simple family (application)
EP 94103556 A 19940309; AT 94103556 T 19940309; DE 59409453 T 19940309; EP 93113953 A 19930901; ES 9302885 U 19931104; ES 94103556 T 19940309; PT 94103556 T 19940309