Affiliation:
1. Zagazig University
2. National Authority for Tunnels
Abstract
Abstract
The life span of railways is one of the most important concerns of rail systems, where rail fastening systems play a key role in extending the life span of the railway. The fastener system plays a necessary role in fixing the rail on the sleeper. The fastener system's tasks ensure the process's safety during operation. The quality of the fastener system directly affects the safety performance of trains. In this research, four different types of ultra-high performance fiber reinforced concrete (UHPFRC) mixtures with two types of steel fiber (50% end-hooked and 50% corrugated) with the same aspect ratio fabricated the pre-stressed concrete sleepers (B70). In addition, the control mix with traditional concrete C50 was tested. From laboratory investigation, this paper clarifies the impact of ultra-high performance fiber reinforced concrete admixture on the pull-out resistance for the fastening system in sleeper B70 and the effect of increasing the amounts of steel fiber on this test.
Publisher
Research Square Platform LLC
Reference16 articles.
1. Progressive failure of prestressed concrete sleepers under multiple high-intensity impact loads;Kaewunruen S;Eng Struct,2009
2. Dynamic Crack Propagations in Prestressed Concrete Sleepers in Railway Track Systems Subjected to Severe Impact Loads;Kaewunruen S;J Struct Eng,2010
3. Improvement of mechanical properties of railway track concrete sleepers using ultra high performance concrete (UHPC);Ahmed S;Frat ed Integrità Strutt,2022
4. Berbey Alvarez A, Guevara-Cedeño J (2020) Railway Engineering. Oxford University Press, pp 371–395
5. Discussion on the law of axial force attenuation and tightening cycle of wj-7b fastener bolt in Shanghai Nanjing intercity;Zhang Z;Railw Stand Des,2014