TY - GEN
T1 - Receptance Test Performed on a Laboratory Ballasted Track Section
AU - Ramos, Ana
AU - Castanheira-Pinto, Alexandre
AU - Esen, Ahmet
AU - Correia, António Gomes
AU - Alves Costa, Pedro
AU - Calçada, Rui
AU - Woodward, Peter
AU - Laghrouche, Omar
N1 - Funding Information:
Acknowledgements This work was partly financed by FCT/MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE), under reference UID /04029/2020. It has been also financially supported by national funds through FCT - Foundation for Science and Technology, under grant agreement [PD/BD/ 127814/2016] attributed to Ana Ramos. Additionally, it was financially supported by: Base Funding -UIDB/04708/2020 of the CONSTRUCT - Instituto de I&D em Estruturas e Construções - funded by national funds through the FCT/MCTES (PIDDAC).
Funding Information:
The authors are grateful to the UK Engineering and Physical Sciences Research Council (EPSRC) for funding the LOCORPS project under Grant Number EP/N009215/1.
Funding Information:
This work was partly financed by FCT/MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE), under reference UID /04029/2020. It has been also financially supported by national funds through FCT-Foundation for Science and Technology, under grant agreement [PD/BD/ 127814/2016] attributed to Ana Ramos. Additionally, it was financially supported by: Base Funding-UIDB/04708/2020 of the CONSTRUCT-Instituto de I&D em Estruturas e Constru??es-funded by national funds through the FCT/MCTES (PIDDAC). The authors are grateful to the UK Engineering and Physical Sciences Research Council (EPSRC) for funding the LOCORPS project under Grant Number EP/N009215/1.
Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2022
Y1 - 2022
N2 - A receptance test was performed in a ballasted track section with three sleepers after cyclic loading tests. This physical model is installed in the laboratory of Heriot-Watt University. The ballasted track is resting on a compacted substructure that is characterized by a frost protection layer (FPL), subgrade and geosynthetic-reinforced soils (GRS). A geogrid TX190L was placed between the ballast and FPL. The ballasted track is characterized by BS113A continuous rails, elastic pads and three G44 sleepers (spaced 0.65 m) embedded on the ballast layer. The receptance test is a helpful tool in the identification of the resonant frequencies that characterize the dynamic behavior of the track, and the results can be used in a calibration process of a numerical model. The response of the track was evaluated through the accelerometers placed on the head and web of the two rails and on the sleepers. The experimental tests were performed over the three sleepers, and the obtained results were compared taking into account the coherence function. Furthermore, the identification of the main resonant frequencies (full-track resonant frequency, anti-resonant frequency of the sleepers and rail resonant frequency) was also analyzed considering the accuracy of the obtained results in terms of coherence (only values higher than 0.9 were considered).
AB - A receptance test was performed in a ballasted track section with three sleepers after cyclic loading tests. This physical model is installed in the laboratory of Heriot-Watt University. The ballasted track is resting on a compacted substructure that is characterized by a frost protection layer (FPL), subgrade and geosynthetic-reinforced soils (GRS). A geogrid TX190L was placed between the ballast and FPL. The ballasted track is characterized by BS113A continuous rails, elastic pads and three G44 sleepers (spaced 0.65 m) embedded on the ballast layer. The receptance test is a helpful tool in the identification of the resonant frequencies that characterize the dynamic behavior of the track, and the results can be used in a calibration process of a numerical model. The response of the track was evaluated through the accelerometers placed on the head and web of the two rails and on the sleepers. The experimental tests were performed over the three sleepers, and the obtained results were compared taking into account the coherence function. Furthermore, the identification of the main resonant frequencies (full-track resonant frequency, anti-resonant frequency of the sleepers and rail resonant frequency) was also analyzed considering the accuracy of the obtained results in terms of coherence (only values higher than 0.9 were considered).
KW - Ballasted track
KW - Experimental tests
KW - Receptance test
UR - http://www.scopus.com/inward/record.url?scp=85113232818&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-77234-5_14
DO - 10.1007/978-3-030-77234-5_14
M3 - Conference contribution
AN - SCOPUS:85113232818
SN - 9783030772338
T3 - Lecture Notes in Civil Engineering
SP - 169
EP - 180
BT - Advances in Transportation Geotechnics IV
A2 - Tutumluer, Erol
A2 - Nazarian, Soheil
A2 - Al-Qadi, Imad
A2 - Qamhia, Issam I. A.
PB - Springer
T2 - 4th International Conference on Transportation Geotechnics 2021
Y2 - 23 May 2021 through 26 May 2021
ER -