Characterization of Vertical Response of Asphalt Trackbed Concrete in Railway Substructure to External Loads
Optimizing the dynamic responses of a slab track system is a key aspect to improve the quality of a railway track structure. In this paper, numerical modelling and simulation of vertical dynamics of the railway track structure engaging the asphalt concrete in substructures were carried out. Thus, a...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/3578281 |
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| author | Bekhzad Yusupov Yanjun Qiu Galibjon Sharipov Chaoyang Wu |
| author_facet | Bekhzad Yusupov Yanjun Qiu Galibjon Sharipov Chaoyang Wu |
| author_sort | Bekhzad Yusupov |
| collection | DOAJ |
| description | Optimizing the dynamic responses of a slab track system is a key aspect to improve the quality of a railway track structure. In this paper, numerical modelling and simulation of vertical dynamics of the railway track structure engaging the asphalt concrete in substructures were carried out. Thus, a 3D finite element (FE) model was developed. The developed model was validated by comparing its outputs, that is, acceleration with the measured ones from realistic experimental data. The good agreement between the simulated and measured data which resulted from the validation confirmed that the proposed model has a capability of simulating the complex dynamic performances of the train-track-ground system under different loading conditions. Analyses of the determined results from the simulation model performances revealed that three specific factors, which were the speed of the train, the temperature, and thickness of the asphalt concrete trackbed, mainly influenced the dynamic behavior of the railway structure. Thereby, those factors were taken into consideration while evaluating the dynamic responses and designing the asphalt concrete trackbed in railway substructures. |
| format | Article |
| id | doaj-art-67120796fe4e416a9caad4da311ac91d |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-67120796fe4e416a9caad4da311ac91d2025-02-03T01:01:29ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/35782813578281Characterization of Vertical Response of Asphalt Trackbed Concrete in Railway Substructure to External LoadsBekhzad Yusupov0Yanjun Qiu1Galibjon Sharipov2Chaoyang Wu3School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan, ChinaSchool of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan, ChinaInstitute of Agricultural Engineering (440d), University of Hohenheim, Stuttgart, GermanySchool of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan, ChinaOptimizing the dynamic responses of a slab track system is a key aspect to improve the quality of a railway track structure. In this paper, numerical modelling and simulation of vertical dynamics of the railway track structure engaging the asphalt concrete in substructures were carried out. Thus, a 3D finite element (FE) model was developed. The developed model was validated by comparing its outputs, that is, acceleration with the measured ones from realistic experimental data. The good agreement between the simulated and measured data which resulted from the validation confirmed that the proposed model has a capability of simulating the complex dynamic performances of the train-track-ground system under different loading conditions. Analyses of the determined results from the simulation model performances revealed that three specific factors, which were the speed of the train, the temperature, and thickness of the asphalt concrete trackbed, mainly influenced the dynamic behavior of the railway structure. Thereby, those factors were taken into consideration while evaluating the dynamic responses and designing the asphalt concrete trackbed in railway substructures.http://dx.doi.org/10.1155/2020/3578281 |
| spellingShingle | Bekhzad Yusupov Yanjun Qiu Galibjon Sharipov Chaoyang Wu Characterization of Vertical Response of Asphalt Trackbed Concrete in Railway Substructure to External Loads Advances in Materials Science and Engineering |
| title | Characterization of Vertical Response of Asphalt Trackbed Concrete in Railway Substructure to External Loads |
| title_full | Characterization of Vertical Response of Asphalt Trackbed Concrete in Railway Substructure to External Loads |
| title_fullStr | Characterization of Vertical Response of Asphalt Trackbed Concrete in Railway Substructure to External Loads |
| title_full_unstemmed | Characterization of Vertical Response of Asphalt Trackbed Concrete in Railway Substructure to External Loads |
| title_short | Characterization of Vertical Response of Asphalt Trackbed Concrete in Railway Substructure to External Loads |
| title_sort | characterization of vertical response of asphalt trackbed concrete in railway substructure to external loads |
| url | http://dx.doi.org/10.1155/2020/3578281 |
| work_keys_str_mv | AT bekhzadyusupov characterizationofverticalresponseofasphalttrackbedconcreteinrailwaysubstructuretoexternalloads AT yanjunqiu characterizationofverticalresponseofasphalttrackbedconcreteinrailwaysubstructuretoexternalloads AT galibjonsharipov characterizationofverticalresponseofasphalttrackbedconcreteinrailwaysubstructuretoexternalloads AT chaoyangwu characterizationofverticalresponseofasphalttrackbedconcreteinrailwaysubstructuretoexternalloads |