Dynamic Behaviour of Bridge Girders with Trapezoidal Profiled Webs Subjected to Moving Loads
The aim of this study is to find out the degradation of dynamic behaviour of bridge girders with trapezoidal profiled webs when subjected to different vehicle moving loads. Finite element modelling based parametric analysis is demonstrated to be desirable in capturing the dynamic deflection and stre...
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| Format: | Article |
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MDPI AG
2020-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/1/38 |
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| author | Zhiyu Wang Yunzhong Shi Xiang You Ruijuan Jiang Weiming Gai |
| author_facet | Zhiyu Wang Yunzhong Shi Xiang You Ruijuan Jiang Weiming Gai |
| author_sort | Zhiyu Wang |
| collection | DOAJ |
| description | The aim of this study is to find out the degradation of dynamic behaviour of bridge girders with trapezoidal profiled webs when subjected to different vehicle moving loads. Finite element modelling based parametric analysis is demonstrated to be desirable in capturing the dynamic deflection and stress state of critical structural details of girders. The model is validated in the modal analysis through a comparison with theoretical eigenfrequencies. The vibration characteristics are shown to be significantly affected by the corrugation details. The structural service life results of analysed bridge girders are in close agreement with experimental data. It is shown that the dynamic nodal velocity and deflection of analysed bridge girders are greatly affected by the magnitude of the load corresponding to the overload of the vehicle in contrast to the vehicle travel speed. Similar observations can be made for the fatigue life prediction analysis related to the crack initiation when unfavourable effects of the overload vehicle are concerned. Presented analytical results using a fracture mechanics approach could be taken as a good basis for the service life assessment of related bridges with the desired level of performance or functionality. |
| first_indexed | 2024-03-10T13:48:05Z |
| format | Article |
| id | doaj.art-13cce731d8684d5780c500ddca4a8195 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T13:48:05Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-13cce731d8684d5780c500ddca4a81952023-11-21T02:22:46ZengMDPI AGMaterials1996-19442020-12-011413810.3390/ma14010038Dynamic Behaviour of Bridge Girders with Trapezoidal Profiled Webs Subjected to Moving LoadsZhiyu Wang0Yunzhong Shi1Xiang You2Ruijuan Jiang3Weiming Gai4Key Laboratory of Deep Underground Science and Engineering (Ministry of Education), School of Architecture and Environment, Sichuan University, B1-B2, 10th Floor, Shunji Building, St No. 252, Chengdu 610065, ChinaKey Laboratory of Deep Underground Science and Engineering (Ministry of Education), School of Architecture and Environment, Sichuan University, B1-B2, 10th Floor, Shunji Building, St No. 252, Chengdu 610065, ChinaKey Laboratory of Deep Underground Science and Engineering (Ministry of Education), School of Architecture and Environment, Sichuan University, B1-B2, 10th Floor, Shunji Building, St No. 252, Chengdu 610065, ChinaInnovation Design Department, Shenzhen Municipal Engineering Design and Research Institute Co., Ltd., 3007 Sungang W Rd, Futian District, Shenzhen 518029, ChinaInnovation Design Department, Shenzhen Municipal Engineering Design and Research Institute Co., Ltd., 3007 Sungang W Rd, Futian District, Shenzhen 518029, ChinaThe aim of this study is to find out the degradation of dynamic behaviour of bridge girders with trapezoidal profiled webs when subjected to different vehicle moving loads. Finite element modelling based parametric analysis is demonstrated to be desirable in capturing the dynamic deflection and stress state of critical structural details of girders. The model is validated in the modal analysis through a comparison with theoretical eigenfrequencies. The vibration characteristics are shown to be significantly affected by the corrugation details. The structural service life results of analysed bridge girders are in close agreement with experimental data. It is shown that the dynamic nodal velocity and deflection of analysed bridge girders are greatly affected by the magnitude of the load corresponding to the overload of the vehicle in contrast to the vehicle travel speed. Similar observations can be made for the fatigue life prediction analysis related to the crack initiation when unfavourable effects of the overload vehicle are concerned. Presented analytical results using a fracture mechanics approach could be taken as a good basis for the service life assessment of related bridges with the desired level of performance or functionality.https://www.mdpi.com/1996-1944/14/1/38trapezoidal webbridge girdermoving loaddynamic analysis |
| spellingShingle | Zhiyu Wang Yunzhong Shi Xiang You Ruijuan Jiang Weiming Gai Dynamic Behaviour of Bridge Girders with Trapezoidal Profiled Webs Subjected to Moving Loads Materials trapezoidal web bridge girder moving load dynamic analysis |
| title | Dynamic Behaviour of Bridge Girders with Trapezoidal Profiled Webs Subjected to Moving Loads |
| title_full | Dynamic Behaviour of Bridge Girders with Trapezoidal Profiled Webs Subjected to Moving Loads |
| title_fullStr | Dynamic Behaviour of Bridge Girders with Trapezoidal Profiled Webs Subjected to Moving Loads |
| title_full_unstemmed | Dynamic Behaviour of Bridge Girders with Trapezoidal Profiled Webs Subjected to Moving Loads |
| title_short | Dynamic Behaviour of Bridge Girders with Trapezoidal Profiled Webs Subjected to Moving Loads |
| title_sort | dynamic behaviour of bridge girders with trapezoidal profiled webs subjected to moving loads |
| topic | trapezoidal web bridge girder moving load dynamic analysis |
| url | https://www.mdpi.com/1996-1944/14/1/38 |
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