A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Sleeper for the track superstructure
The invention relates to a sleeper for the track superstructure, which is produced in one piece from a plastic material, wherein the sleeper (1; 101) has an elongate basic shape with two end portions (2, 3; 102, 103) which are connected by a central portion (4; 104) of the sleeper (1; 101) and are held at a distance and wherein, on the top side (7; 107) thereof, a standing surface (112) is in each case provided for the rail (S1, S2) that is to be supported on the respective end portion (2, 3; 102, 103), wherein a reinforcement (40; 140) is embedded in the central portion (4, 104), which extends in the longitudinal direction (LR) of the sleeper (1; 101). In order to design a sleeper made of plastic material in such a manner that it has an optimized strength and can be reliably produced even with the use of inexpensive plastic-sand mixtures having a high sand fraction, the invention proposes that the reinforcement (40; 140) extends over the length of the central portion (4; 104), that the reinforcement (40; 140) is anchored in each case in an edge region (45, 46; 145, 146), which is associated with the central portion (4; 104), of the end portions (2, 3; 102, 103) in the respective end portion (2, 3; 102, 103), and that the reinforcement (40; 140) is fully or partially arranged in the upper quarter of the height (H) of the sleeper (1; 101).
Sleeper for the track superstructure
The invention relates to a sleeper for the track superstructure, which is produced in one piece from a plastic material, wherein the sleeper (1; 101) has an elongate basic shape with two end portions (2, 3; 102, 103) which are connected by a central portion (4; 104) of the sleeper (1; 101) and are held at a distance and wherein, on the top side (7; 107) thereof, a standing surface (112) is in each case provided for the rail (S1, S2) that is to be supported on the respective end portion (2, 3; 102, 103), wherein a reinforcement (40; 140) is embedded in the central portion (4, 104), which extends in the longitudinal direction (LR) of the sleeper (1; 101). In order to design a sleeper made of plastic material in such a manner that it has an optimized strength and can be reliably produced even with the use of inexpensive plastic-sand mixtures having a high sand fraction, the invention proposes that the reinforcement (40; 140) extends over the length of the central portion (4; 104), that the reinforcement (40; 140) is anchored in each case in an edge region (45, 46; 145, 146), which is associated with the central portion (4; 104), of the end portions (2, 3; 102, 103) in the respective end portion (2, 3; 102, 103), and that the reinforcement (40; 140) is fully or partially arranged in the upper quarter of the height (H) of the sleeper (1; 101).
Sleeper for the track superstructure
LIU DUO (author) / BÖSTERLING WINFRIED (author)
2022-01-13
Patent
Electronic Resource
English
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
Method for Producing a Sleeper for Use in the Railway Track Superstructure
| European Patent Office | 2019
METHOD FOR PRODUCING A SLEEPER FOR USE IN THE RAILWAY TRACK SUPERSTRUCTURE
| European Patent Office | 2017