Experimental Study on Dynamic Effects of a Long-span Railway Continuous Beam Bridge
Studies on impact effects of trains on the railway bridge are important for ensuring the reliability of bridge and the safety of train operation. This paper presents an experimental study on the dynamic effects of moving trains on a long-span railway continuous beam bridge. The dynamic responses of...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-04-01
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| Series: | Applied Sciences |
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| Online Access: | http://www.mdpi.com/2076-3417/8/5/669 |
| _version_ | 1818139596964233216 |
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| author | Hongye Gou Wen Zhou Yi Bao Xiaobin Li Qianhui Pu |
| author_facet | Hongye Gou Wen Zhou Yi Bao Xiaobin Li Qianhui Pu |
| author_sort | Hongye Gou |
| collection | DOAJ |
| description | Studies on impact effects of trains on the railway bridge are important for ensuring the reliability of bridge and the safety of train operation. This paper presents an experimental study on the dynamic effects of moving trains on a long-span railway continuous beam bridge. The dynamic responses of the bridge under the moving trains were measured through in-situ testing and finite element analysis. The influences of the moving trains and track irregularity are considered. The investigated influencing factors include the weight and speed of the train and the irregularity of the track on the bridge. The results indicate that the train’s speed does not have obvious influence on the impact factor, while train’s weight and track irregularity have notable effects on the impact factor. But from the overall development law, with the increase of train speed, the impact factor increases. The impact factors obtained in this study are larger than the values provided by the China bridge design codes, which indicates that the bridge code underestimates the impact effect of the train on the bridge. The design value of the impact factor should be properly improved in the bridge design. |
| first_indexed | 2024-12-11T10:30:37Z |
| format | Article |
| id | doaj.art-e92582703bef4c5798988e31e6b5cb72 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-11T10:30:37Z |
| publishDate | 2018-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-e92582703bef4c5798988e31e6b5cb722022-12-22T01:10:57ZengMDPI AGApplied Sciences2076-34172018-04-018566910.3390/app8050669app8050669Experimental Study on Dynamic Effects of a Long-span Railway Continuous Beam BridgeHongye Gou0Wen Zhou1Yi Bao2Xiaobin Li3Qianhui Pu4Department of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaDepartment of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaDepartment of Civil, Architectural and Environmental Engineering, Missouri University of Science and Technology, Rolla, MO 65401, USADepartment of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaDepartment of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaStudies on impact effects of trains on the railway bridge are important for ensuring the reliability of bridge and the safety of train operation. This paper presents an experimental study on the dynamic effects of moving trains on a long-span railway continuous beam bridge. The dynamic responses of the bridge under the moving trains were measured through in-situ testing and finite element analysis. The influences of the moving trains and track irregularity are considered. The investigated influencing factors include the weight and speed of the train and the irregularity of the track on the bridge. The results indicate that the train’s speed does not have obvious influence on the impact factor, while train’s weight and track irregularity have notable effects on the impact factor. But from the overall development law, with the increase of train speed, the impact factor increases. The impact factors obtained in this study are larger than the values provided by the China bridge design codes, which indicates that the bridge code underestimates the impact effect of the train on the bridge. The design value of the impact factor should be properly improved in the bridge design.http://www.mdpi.com/2076-3417/8/5/669railwaycontinuous beam bridgedynamic testimpact factorfinite element analysis |
| spellingShingle | Hongye Gou Wen Zhou Yi Bao Xiaobin Li Qianhui Pu Experimental Study on Dynamic Effects of a Long-span Railway Continuous Beam Bridge Applied Sciences railway continuous beam bridge dynamic test impact factor finite element analysis |
| title | Experimental Study on Dynamic Effects of a Long-span Railway Continuous Beam Bridge |
| title_full | Experimental Study on Dynamic Effects of a Long-span Railway Continuous Beam Bridge |
| title_fullStr | Experimental Study on Dynamic Effects of a Long-span Railway Continuous Beam Bridge |
| title_full_unstemmed | Experimental Study on Dynamic Effects of a Long-span Railway Continuous Beam Bridge |
| title_short | Experimental Study on Dynamic Effects of a Long-span Railway Continuous Beam Bridge |
| title_sort | experimental study on dynamic effects of a long span railway continuous beam bridge |
| topic | railway continuous beam bridge dynamic test impact factor finite element analysis |
| url | http://www.mdpi.com/2076-3417/8/5/669 |
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