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Giant earthquake response analysis of high-speed rail bridge based on shaking table tests
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Lingkun CHEN1, 2, Hongqi SHI1, Xin KANG3, Xiaolun HU4, Lizhong JIANG5
Journal of Vibration Engineering | 2025, 38(1) : 191 - 203
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Journal of Vibration Engineering | 2025, 38(1): 191-203
Giant earthquake response analysis of high-speed rail bridge based on shaking table tests
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Lingkun CHEN1, 2, Hongqi SHI1, Xin KANG3, Xiaolun HU4, Lizhong JIANG5
Affiliations
  • 1.Department of Transportation Engineering, Yangzhou University, Yangzhou 225009, China
  • 2.Transportation Science Institute of Nanjing Tech University (Chuzhou) Co., LTD., Chuzhou 239050, China
  • 3.Hunan Second Engineering Co., Ltd., Changsha 410036, China
  • 4.School of Transportation, Southeast University, Nanjing 211189, China
  • 5.School of Civil Engineering, Central South University, Changsha 410075, China
Published: 2025-01-10 doi: 10.16385/j.cnki.issn.1004-4523.2025.01.021
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Railway bridges must have sufficient stiffness to ensure high-speed train safety, increasing seismic response. The Sichuan-Tibet Railway network has extended westward. This research analyzes the fourth level of high-speed railway bridges.Three 1/5 and six 1/8 scaled-down high-speed rail(HSR) round-ended rectangular-shaped cross-section solid(RERSCSS) concrete pier were tested and evaluated. The piers survived the earthquake with a peak acceleration 0.96g (prototype 0.32g, seven degrees high-level earthquake). Bridge pier specimens showed no concrete cracking or spalling. The code-designed bridge is seismically safe. When the seismic energy reached 1.71g (prototype 0.57g, eight degrees high-level earthquake), the bridge piers showed moderate to severe damage in the cis-bridge direction. At giant earthquake 1.86g, no bridge abutments collapsed. The study shows that increasing longitudinal reinforcement rate increases structural energy dissipation under the same ground shaking, but increasing seismic protection level increases it more, indicating that test piers can take larger earthquake loads. The bridge pier’s energy dissipation and hysteresis curve depend on the longitudinal reinforcement rate. High-speed rail piers are not designed for ductility. Therefore, their volume hoop rate and hysteresis performance are low. Based on the analysis, the seismic design classification may be upgraded from the third to forth levels.

seismic performance  /  high-speed rail bridge  /  round-end rectangular solid pier  /  giant earthquake  /  shaking table test
Lingkun CHEN, Hongqi SHI, Xin KANG, Xiaolun HU, Lizhong JIANG. Giant earthquake response analysis of high-speed rail bridge based on shaking table tests[J]. Journal of Vibration Engineering, 2025 , 38 (1) : 191 -203 . DOI: 10.16385/j.cnki.issn.1004-4523.2025.01.021
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Year 2025 volume 38 Issue 1
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Article Info
doi: 10.16385/j.cnki.issn.1004-4523.2025.01.021
  • Receive Date：2023-03-18
  • Online Date：2026-02-11
  • Published：2025-01-10
Article Data
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History
  • Received：2023-03-18
  • Revised：2023-06-06
Funding
Affiliations
    1.Department of Transportation Engineering, Yangzhou University, Yangzhou 225009, China
    2.Transportation Science Institute of Nanjing Tech University (Chuzhou) Co., LTD., Chuzhou 239050, China
    3.Hunan Second Engineering Co., Ltd., Changsha 410036, China
    4.School of Transportation, Southeast University, Nanjing 211189, China
    5.School of Civil Engineering, Central South University, Changsha 410075, China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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