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Modification of the horizontal seismic design gauge response spectrum for near-fault bridges
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Haoyu XIE1, 2, Wen YU3, Guangwu TANG1, 2, Haiming LIU1, 2, Huailin LIU1, 2
Earthquake Engineering and Engineering Dynamics | 2025, 45(1) : 187 - 194
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Earthquake Engineering and Engineering Dynamics | 2025, 45(1): 187-194
Modification of the horizontal seismic design gauge response spectrum for near-fault bridges
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Haoyu XIE1, 2, Wen YU3, Guangwu TANG1, 2, Haiming LIU1, 2, Huailin LIU1, 2
Affiliations
  • 1.State Key Laboratory of Bridge Safety and Resilience, Chongqing 400067, China
  • 2.CMCT Research & Design Institute Co., Ltd., Chongqing 400067, China
  • 3.Road & Bridge International Communication Technology Co., Ltd., Beijing 101399, China
Published: 2025-02-28 doi: 10.13197/j.eeed.2025.0119
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The current seismic design codes for bridges primarily rely on design response spectra derived from far-field observational records, which fail to accurately reflect the ground motion characteristics and structural seismic response characteristics in near-fault regions. As a result, the seismic design for bridges in near-fault regions may be unsafe. To address the issue, near-fault ground motion time histories are selected from the Pacific Earthquake Engineering Research Center (PEER) database based on principles including source distance, moment magnitude, and peak ground acceleration(PGA). Average spectra are calculated using site foundation conditions and PGA as grouping principles, and then calibrated using a least-squares piecewise fitting method. This process yields statistical recommendations for three key parameters of the near-fault horizontal design gauge response spectrum: amplification factor, attenuation index, and characteristic period. Finally, adjustments were made to propose a gauge response spectrum that considers near-fault earthquake characteristics, providing a basis for incorporating near-fault ground motion effects into China's seismic design codes for bridges.

bridge seismic design  /  near-fault ground motion  /  least square calibration  /  horizontal design response spectrum
Haoyu XIE, Wen YU, Guangwu TANG, Haiming LIU, Huailin LIU. Modification of the horizontal seismic design gauge response spectrum for near-fault bridges[J]. Earthquake Engineering and Engineering Dynamics, 2025 , 45 (1) : 187 -194 . DOI: 10.13197/j.eeed.2025.0119
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Year 2025 volume 45 Issue 1
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Article Info
doi: 10.13197/j.eeed.2025.0119
  • Receive Date：2023-10-19
  • Online Date：2026-03-20
  • Published：2025-02-28
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  • Received：2023-10-19
  • Revised：2024-02-01
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Affiliations
    1.State Key Laboratory of Bridge Safety and Resilience, Chongqing 400067, China
    2.CMCT Research & Design Institute Co., Ltd., Chongqing 400067, China
    3.Road & Bridge International Communication Technology Co., Ltd., Beijing 101399, China
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https://castjournals.cast.org.cn/joweb/dzgcygczd/EN/10.13197/j.eeed.2025.0119
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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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