| 摘要: |
| 高烈度区的内河码头作为水陆联运的重要枢纽，其震后功能恢复能力对整个区域交通网络的抗震韧性具有决定性影响。以东川港格勒客运中心高桩框架式码头为研究对象，利用OpenSees软件构建三维有限元模型，并运用耐震时程法生成结构地震易损性曲线，用以量化不同地震动强度下码头的功能损失程度。在此基础上，结合经济损失比例与功能恢复所需时间，提出包含线性、三角函数和指数型三种恢复路径的抗震韧性评估框架，并进行系统性评价。研究发现:随着地震强度提升，码头整体韧性水平持续下降，但降幅逐渐趋缓；在线性与三角函数恢复模式下，所评估的韧性指标值完全一致，表明二者在表征震后功能恢复过程方面具有等效性；相比之下，指数型恢复模型更能真实反映震后集中资源、快速抢修关键功能的实际应急机制，在同等地震强度下展现出更高的韧性水平，凸显高效应急响应策略在提升基础设施韧性中的关键作用。该成果可为高烈度区码头工程的性能化抗震设计、韧性提升措施制定及震后应急决策提供理论支撑与技术参考。 |
| 关键词: 高桩框架式码头 地震易损性 抗震韧性 功能恢复 耐震时程法 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金面上项目（51878605） |
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| Study on seismic resilience of high-pile framed passenger wharf in inland rivers of high intensity zones |
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PEI Zhiyong1, WANG Yuanyuan1, WANG Xia1, DENG Xiaoqin1, ZOU Yi2, FANG Huolang2
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1.PowerChina Huadong Engineering Corporation Limited;2.College of Civil Engineering and Architecture,Zhejiang University
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| Abstract: |
| Inland river ports located in high seismic intensity zones serve as critical hubs for intermodal water-land transportation, and their post-earthquake functional recovery capacity plays a decisive role in the seismic resilience of the entire regional transportation network. Taking the Gele Passenger Terminal, a high-pile framed wharf at Dongchuan Port, as the case study, a three-dimensional finite element model is developed using OpenSees software. The endurance time method is employed to generate seismic fragility curves, quantifying the extent of functional loss under varying levels of ground motion intensity. Building upon this, an integrated seismic resilience assessment framework is proposed, incorporating three distinct recovery trajectories—linear, trigonometric, and exponential—by jointly considering economic loss ratios and required functional recovery durations. Systematic evaluation revealed the following key findings: as seismic intensity increases, the overall resilience of the wharf continuously decreases, but the rate of decline gradually slows down; under linear and trigonometric recovery models, the computed resilience metrics are identical, indicating their equivalence in representing post-earthquake functional restoration processes; in contrast, the exponential recovery model more realistically captures the practical emergency response mechanism—characterized by concentrated resource allocation and rapid repair of critical functions—yielding higher resilience values under identical seismic intensities. This highlights the pivotal role of efficient emergency response strategies in enhancing infrastructure resilience. The outcomes of this study provide theoretical support and technical reference for performance-based seismic design, resilience-enhancing measures, and post-earthquake emergency decision-making for wharf structures in high-intensity seismic regions. |
| Key words: high-pile framed wharf seismic fragility seismic resilience functionality recovery endurance time method |
