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Vibration serviceability of a GFRP railway crossing due to pedestrians and train excitation
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Russell, J. M., Wei, Xiaojun, Živanović, Stana and Kruger, C. (2020) Vibration serviceability of a GFRP railway crossing due to pedestrians and train excitation. Engineering Structures, 219 . 110756. doi:10.1016/j.engstruct.2020.110756 ISSN 0141-0296.
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Vibration Servicabilty of a GFRP Railway Crossing Due to Pedestrians and Train Excitation - Preprint.pdf - Accepted Version Embargoed item. Restricted access to Repository staff only - Requires a PDF viewer. Download (12Mb) |
Official URL: https://doi.org/10.1016/j.engstruct.2020.110756
Abstract
Glass Fibre-Reinforced Polymers (GFRPs) are a popular option for pedestrian bridges over railway lines as they cause little disruption for installation or maintenance. However, as they are typically lighter and less stiff than traditional materials there is concern about their dynamic response due to human induced actions and train buffeting. Due to a lack of experimental information, further data is needed if such bridges are to be used on future lines, especially with higher speed limits. This paper presents an experimental investigation of the response of a 14.5m GFRP truss bridge due to pedestrian loading and train induced vibrations. Vibration modes of interest were identified from impact hammer tests. The vibration responses to a range of human loading scenarios, as well as multiple train passes, were measured. The vibration levels remained low under all conditions, demonstrating that this particular type of GFRP bridge is suitable for railway crossings and that further optimisations may be available to designers while meeting vibration serviceability limits. However, consideration of the loadings suggests GFRP bridges may be more susceptible to higher pedestrian harmonics than traditional structures, and that vibrations from train buffeting are likely to be a design consideration for future bridges over high speed lines.
| Item Type: | Journal Article | ||||||||
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| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TF Railroad engineering and operation T Technology > TG Bridge engineering |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
| Library of Congress Subject Headings (LCSH): | Glass fibers, Fiber-reinforced plastics, Glass-reinforced plastics , Railroad tracks -- Materials, Railroad tracks -- Vibration , Footbridges , Vibration | ||||||||
| Journal or Publication Title: | Engineering Structures | ||||||||
| Publisher: | Elsevier Science Ltd. | ||||||||
| ISSN: | 0141-0296 | ||||||||
| Official Date: | 15 September 2020 | ||||||||
| Dates: |
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| Volume: | 219 | ||||||||
| Article Number: | 110756 | ||||||||
| DOI: | 10.1016/j.engstruct.2020.110756 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||||
| Date of first compliant deposit: | 19 June 2020 | ||||||||
| Date of first compliant Open Access: | 19 June 2020 | ||||||||
| RIOXX Funder/Project Grant: |
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