Testing a novel FRP railway footbridge

Simon Barrans; Harvey Kangley; Gregory Jones; Mark Newton

doi:10.4203/ccc.1.6.7

Testing a novel FRP railway footbridge

Simon Barrans, Harvey Kangley, Gregory Jones, Mark Newton

Research output: Contribution to journal › Conference article › peer-review

Abstract

Responding to the urgent need to replace pedestrian level crossings with footbridges on the UK rail network, a fibre reinforced polymer (FRP) bridge has been designed. This novel design incorporates a pretensioned, modified Warren truss structure formed from pultruded FRP sections. The pretension system ensures that the diagonal members in the Warren truss are always held in compression. This eliminates the need for bolted joints. To validate this design, a proof test was carried out, applying a load of 5.16kN/m2 to the bridge deck. The behaviour of the truss assembly was monitored with a strain gauges attached to the pretension system. This test demonstrated that the diagonal members remained in compression, validating the design analysis and proving the footbridge fit for purpose.

Original language	English
Article number	6.7
Number of pages	8
Journal	Civil-Comp Conferences
Volume	1
DOIs	https://doi.org/10.4203/ccc.1.6.7
Publication status	Published - 22 Aug 2022
Event	5th International Conference on Railway Technology: Research, Development and Maintenance - Montpellier, France Duration: 22 Aug 2022 → 25 Aug 2022 Conference number: 5 http://www.railwaysconference.com/

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Cite this

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title = "Testing a novel FRP railway footbridge",

abstract = "Responding to the urgent need to replace pedestrian level crossings with footbridges on the UK rail network, a fibre reinforced polymer (FRP) bridge has been designed. This novel design incorporates a pretensioned, modified Warren truss structure formed from pultruded FRP sections. The pretension system ensures that the diagonal members in the Warren truss are always held in compression. This eliminates the need for bolted joints. To validate this design, a proof test was carried out, applying a load of 5.16kN/m2 to the bridge deck. The behaviour of the truss assembly was monitored with a strain gauges attached to the pretension system. This test demonstrated that the diagonal members remained in compression, validating the design analysis and proving the footbridge fit for purpose.",

keywords = "footbridge, strain gauge, pre-tensioned, fibre reinforced polymer",

author = "Simon Barrans and Harvey Kangley and Gregory Jones and Mark Newton",

note = "Full bibliographic reference is: S.M. Barrans, H. Kangley, G. Jones, M. Newton, {"}Testing a novel FRP railway footbridge{"}, in J. Pombo, (Editor), {"}Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance{"}, Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 6.7, 2022, doi:10.4203/ccc.1.6.7; 5th International Conference on Railway Technology : Research, Development and Maintenance ; Conference date: 22-08-2022 Through 25-08-2022",

year = "2022",

month = aug,

day = "22",

doi = "10.4203/ccc.1.6.7",

language = "English",

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journal = "Civil-Comp Conferences",

issn = "2753-3239",

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TY - JOUR

T1 - Testing a novel FRP railway footbridge

AU - Barrans, Simon

AU - Kangley, Harvey

AU - Jones, Gregory

AU - Newton, Mark

N1 - Conference code: 5

PY - 2022/8/22

Y1 - 2022/8/22

N2 - Responding to the urgent need to replace pedestrian level crossings with footbridges on the UK rail network, a fibre reinforced polymer (FRP) bridge has been designed. This novel design incorporates a pretensioned, modified Warren truss structure formed from pultruded FRP sections. The pretension system ensures that the diagonal members in the Warren truss are always held in compression. This eliminates the need for bolted joints. To validate this design, a proof test was carried out, applying a load of 5.16kN/m2 to the bridge deck. The behaviour of the truss assembly was monitored with a strain gauges attached to the pretension system. This test demonstrated that the diagonal members remained in compression, validating the design analysis and proving the footbridge fit for purpose.

AB - Responding to the urgent need to replace pedestrian level crossings with footbridges on the UK rail network, a fibre reinforced polymer (FRP) bridge has been designed. This novel design incorporates a pretensioned, modified Warren truss structure formed from pultruded FRP sections. The pretension system ensures that the diagonal members in the Warren truss are always held in compression. This eliminates the need for bolted joints. To validate this design, a proof test was carried out, applying a load of 5.16kN/m2 to the bridge deck. The behaviour of the truss assembly was monitored with a strain gauges attached to the pretension system. This test demonstrated that the diagonal members remained in compression, validating the design analysis and proving the footbridge fit for purpose.

KW - footbridge

KW - strain gauge

KW - pre-tensioned

KW - fibre reinforced polymer

UR - https://www.ctresources.info/ccc/pub.html?f=v1rw22

U2 - 10.4203/ccc.1.6.7

DO - 10.4203/ccc.1.6.7

M3 - Conference article

VL - 1

JO - Civil-Comp Conferences

JF - Civil-Comp Conferences

SN - 2753-3239

M1 - 6.7

T2 - 5th International Conference on Railway Technology

Y2 - 22 August 2022 through 25 August 2022

ER -

Testing a novel FRP railway footbridge

Abstract

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