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<p>Quantifying the post-earthquake functional recovery of railway stations presents significant challenges. This paper first establishes a post-earthquake function calculation method for railway stations, encompassing the establishment of relationships between the station’s function and the damage state, function loss, and failure probability of components and professional equipment in each layer. Also, the “4 stages-6 sequences” post-earthquake repair method is present, taking into account the functional and structural characteristics of railway stations. Additionally, a novel piecewise function for the post-earthquake functional dynamic recovery of railway stations is developed. A case study is conducted on a typical railway station to demonstrate the analysis procedure. Results indicate that under fortification, rare, and extremely rare earthquake scenarios, the interlayer drift ratio (<i>IDR</i>) of the railway station were 1/276, 1/143, and 1/52, respectively, and corresponding peak floor acceleration (<i>PFA</i>) were 6.31 m/s<sup>2</sup>, 7.82 m/s<sup>2</sup>, and 8.57 m/s<sup>2</sup>, respectively. The post-earthquake function of the railway station was 93.21%, 82.33%, and 64.16% of its initial function. The repair times were 6.66 days, 18.65 days, and 37.42 days. The displacement-sensitive, non-structural components were identified as the most vulnerable to damage. And the first repair stage (R<sub>1</sub>) which was mainly used to repair structural components and non-structural transport components, accounted for the highest proportion of total repair time.</p>

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Establishment of the “4 stages-6 sequences” repair method and quantification analysis on post-earthquake functional recovery of railway station

  • 期刊论文

  • 发表日期：

    2025年7月26日

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  • Jiayu Song,
  • Haiwang Gao,
  • Yi Pan,
  • Junpeng Jiang

摘要

Quantifying the post-earthquake functional recovery of railway stations presents significant challenges. This paper first establishes a post-earthquake function calculation method for railway stations, encompassing the establishment of relationships between the station’s function and the damage state, function loss, and failure probability of components and professional equipment in each layer. Also, the “4 stages-6 sequences” post-earthquake repair method is present, taking into account the functional and structural characteristics of railway stations. Additionally, a novel piecewise function for the post-earthquake functional dynamic recovery of railway stations is developed. A case study is conducted on a typical railway station to demonstrate the analysis procedure. Results indicate that under fortification, rare, and extremely rare earthquake scenarios, the interlayer drift ratio (IDR) of the railway station were 1/276, 1/143, and 1/52, respectively, and corresponding peak floor acceleration (PFA) were 6.31 m/s2, 7.82 m/s2, and 8.57 m/s2, respectively. The post-earthquake function of the railway station was 93.21%, 82.33%, and 64.16% of its initial function. The repair times were 6.66 days, 18.65 days, and 37.42 days. The displacement-sensitive, non-structural components were identified as the most vulnerable to damage. And the first repair stage (R1) which was mainly used to repair structural components and non-structural transport components, accounted for the highest proportion of total repair time.