Experimental and Numerical Study on the Earthquake Damage of Spherical Bearings for Chinese High-Speed Railway Bridge
Spherical bearings are widely applied in high-speed railway bridges (HSRBs) in China. The experimental and computational analyses were carried out to help understand the damage mechanism of these bearings under earthquake loading. A shaking table test of scaled HSRB specimen (installed with spherica...
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| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2022/8304408 |
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| _version_ | 1850185753653411840 |
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| author | Xin Kang Mingliang Zhang Hongxi Qin Leqiao Zeng Linna Peng Xiaoxiang Wang Libin Deng Jia Hu Zhuo Li Guangqiang Shao Qing Lin |
| author_facet | Xin Kang Mingliang Zhang Hongxi Qin Leqiao Zeng Linna Peng Xiaoxiang Wang Libin Deng Jia Hu Zhuo Li Guangqiang Shao Qing Lin |
| author_sort | Xin Kang |
| collection | DOAJ |
| description | Spherical bearings are widely applied in high-speed railway bridges (HSRBs) in China. The experimental and computational analyses were carried out to help understand the damage mechanism of these bearings under earthquake loading. A shaking table test of scaled HSRB specimen (installed with spherical bearings) was performed under the simulated earthquake action, and the intensities were, respectively, 0.15 g, 0.20 g, 0.32 g, and 0.38 g (common intensities in China) of actual earthquakes in accordance with similarity relationships. After investigating and analyzing results of the shaking table test, it is shown that no damage occurred to movable bearings in all experimental earthquake scenarios, while slight damage could be found in fixed bearings at 0.32 g earthquake. Moreover, a finite element (FE) model of the prototype HSRB was established and validated. The damage degree of spherical bearings in stronger earthquakes (i.e., 0.40 g to 1.00 g) was studied through this validated FE model. The numerical results showed that the fixed bearing was completely damaged at 0.80 g earthquake, while only moderate damage occurred to the movable bearing at that intensity. |
| format | Article |
| id | doaj-art-3d172a6295fa4e4db90299cd7d1b7efa |
| institution | OA Journals |
| issn | 1875-9203 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-3d172a6295fa4e4db90299cd7d1b7efa2025-08-20T02:16:34ZengWileyShock and Vibration1875-92032022-01-01202210.1155/2022/8304408Experimental and Numerical Study on the Earthquake Damage of Spherical Bearings for Chinese High-Speed Railway BridgeXin Kang0Mingliang Zhang1Hongxi Qin2Leqiao Zeng3Linna Peng4Xiaoxiang Wang5Libin Deng6Jia Hu7Zhuo Li8Guangqiang Shao9Qing Lin10Hunan Construction Investment Group Co LTDHunan Construction Investment Group Co LTDSchool of Civil EngineeringHunan Construction Investment Group Co LTDHunan Construction Investment Group Co LTDHunan Construction Investment Group Co LTDHunan Construction Investment Group Co LTDHunan Construction Investment Group Co LTDHunan Construction Investment Group Co LTDSouth China CompanyHunan Construction Engineering Group Co LTDSpherical bearings are widely applied in high-speed railway bridges (HSRBs) in China. The experimental and computational analyses were carried out to help understand the damage mechanism of these bearings under earthquake loading. A shaking table test of scaled HSRB specimen (installed with spherical bearings) was performed under the simulated earthquake action, and the intensities were, respectively, 0.15 g, 0.20 g, 0.32 g, and 0.38 g (common intensities in China) of actual earthquakes in accordance with similarity relationships. After investigating and analyzing results of the shaking table test, it is shown that no damage occurred to movable bearings in all experimental earthquake scenarios, while slight damage could be found in fixed bearings at 0.32 g earthquake. Moreover, a finite element (FE) model of the prototype HSRB was established and validated. The damage degree of spherical bearings in stronger earthquakes (i.e., 0.40 g to 1.00 g) was studied through this validated FE model. The numerical results showed that the fixed bearing was completely damaged at 0.80 g earthquake, while only moderate damage occurred to the movable bearing at that intensity.http://dx.doi.org/10.1155/2022/8304408 |
| spellingShingle | Xin Kang Mingliang Zhang Hongxi Qin Leqiao Zeng Linna Peng Xiaoxiang Wang Libin Deng Jia Hu Zhuo Li Guangqiang Shao Qing Lin Experimental and Numerical Study on the Earthquake Damage of Spherical Bearings for Chinese High-Speed Railway Bridge Shock and Vibration |
| title | Experimental and Numerical Study on the Earthquake Damage of Spherical Bearings for Chinese High-Speed Railway Bridge |
| title_full | Experimental and Numerical Study on the Earthquake Damage of Spherical Bearings for Chinese High-Speed Railway Bridge |
| title_fullStr | Experimental and Numerical Study on the Earthquake Damage of Spherical Bearings for Chinese High-Speed Railway Bridge |
| title_full_unstemmed | Experimental and Numerical Study on the Earthquake Damage of Spherical Bearings for Chinese High-Speed Railway Bridge |
| title_short | Experimental and Numerical Study on the Earthquake Damage of Spherical Bearings for Chinese High-Speed Railway Bridge |
| title_sort | experimental and numerical study on the earthquake damage of spherical bearings for chinese high speed railway bridge |
| url | http://dx.doi.org/10.1155/2022/8304408 |
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