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Study on the influence of near-fault ground motion characteristics on the seismic response of gravity dams
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Denghong CHEN1, 2, Xinhan ZHANG1, 2, Tiancheng LIN1, 2, Meng YUE1, 2, Ruinan WANG1, 2, Yiyang ZENG1, 2
Earthquake Engineering and Engineering Dynamics | 2025, 45(2) : 106 - 117
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Earthquake Engineering and Engineering Dynamics | 2025, 45(2): 106-117
Study on the influence of near-fault ground motion characteristics on the seismic response of gravity dams
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Denghong CHEN1, 2, Xinhan ZHANG1, 2, Tiancheng LIN1, 2, Meng YUE1, 2, Ruinan WANG1, 2, Yiyang ZENG1, 2
Affiliations
  • 1.Hubei Key Laboratory of Disaster Prevention and Mitigation, China Three Gorges University, Yichang 443002, China
  • 2.College of Civil Engineering and Architecture, China Three Gorges University, Yichang 443002, China
Published: 2025-04-24 doi: 10.13197/j.eeed.2025.0210
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Based on the database of the Pacific Earthquake Engineering Research Center, the collected seismic records were classified according to the fault distance of the seismic stations, and the amplitude, spectrum and time characteristics of the ground motions under different site conditions were studied and quantitatively analyzed. Taking the Huangdeng gravity dam as the research object, based on the three response quantities of downstream displacement at the upstream dam face, principal tensile stress at the upstream dam face and principal compressive stress at the downstream dam face, the influence of near-fault earthquake pulse characteristics on seismic response of gravity dams was investigated. The results show that the relative displacement of the toe of the top dam of Huangdeng gravity dam under pulse earthquake is 44% larger than that under non-pulse earthquake. The principal tensile stress at the dam heel is 30% larger than that of the non-pulse type. The principal compressive stress at the toe of the dam is 31% greater than the response value of non-pulsed earthquake. The impact of pulse earthquakes on the structure is not negligible compared with non-pulsed earthquakes, and the response values of the structure were significantly larger. Therefore, it is necessary to consider the impulsive action of near-fault earthquakes in seismic fortification.

near-fault  /  ground motion  /  gravity dam  /  pulse characteristics  /  seismic response
Denghong CHEN, Xinhan ZHANG, Tiancheng LIN, Meng YUE, Ruinan WANG, Yiyang ZENG. Study on the influence of near-fault ground motion characteristics on the seismic response of gravity dams[J]. Earthquake Engineering and Engineering Dynamics, 2025 , 45 (2) : 106 -117 . DOI: 10.13197/j.eeed.2025.0210
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Year 2025 volume 45 Issue 2
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Article Info
doi: 10.13197/j.eeed.2025.0210
  • Receive Date：2023-12-08
  • Online Date：2026-03-20
  • Published：2025-04-24
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History
  • Received：2023-12-08
  • Revised：2024-03-10
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Affiliations
    1.Hubei Key Laboratory of Disaster Prevention and Mitigation, China Three Gorges University, Yichang 443002, China
    2.College of Civil Engineering and Architecture, China Three Gorges University, Yichang 443002, China
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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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