Abstract
![CDATA[Research about railway bridges often focus on the sleepers which are essential components within the track infrastructure. Indeed, most of these studies reveal that the existing sleepers made of either timber, steel or prestressed concrete are not entirely adequate for modern railway operational conditions. Transoms (i.e. considered as large sleepers) used on railway bridges have higher design requirements as compared to traditional sleepers on ballasted track since they directly transfer the high static and dynamic loads from the rails to the bridge girders. Concerns related to the sleeper’s material have long been acknowledged by researchers, however their practical replacements with composite alternatives remain fairly limited. Therefore, this research addresses the use of Synthetic Fibre Reinforced Concrete (SFRC) as an alternative and sustainable material for transoms of railway bridges. The research presented herein will focus on the mechanical properties of synthetic fibre reinforcement in concrete subjected to various static and dynamic loadings. More emphasis has been given to the flexural and shear strength characteristics since their associated stresses induced throughout the railway bridge ties (i.e. transoms) are comparatively higher. In addition, the effects of different fibre volume and aspect ratios will be thoroughly compared and discussed. The outcomes generated by the experimental tests are expected to enhance the durability, workability and flexibility of the concrete sleepers in the actual Australian railway track infrastructure.]]
Original language | English |
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Title of host publication | 9th Australian Small Bridges Conference, Surfers Paradise, Qld, Australia, 1-2 April 2019 |
Publisher | Leading Infrastructure |
Number of pages | 1 |
Publication status | Published - 2019 |
Event | Australian Small Bridges Conference - Duration: 1 Jan 2019 → … |
Conference
Conference | Australian Small Bridges Conference |
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Period | 1/01/19 → … |
Keywords
- railroad bridges
- concrete
- fibrous composite