新西兰可控摇摆提离高墩桥梁设计建造综述——以南兰吉提克铁路桥为例
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作者单位:

1.北京工业大学 桥梁工程安全与韧性全国重点实验室, 北京 100124 ;2.中交基础设施养护集团有限公司, 北京 100102 ; 3.中交路桥检测养护有限公司, 北京 101399 ;4.中国市政工程西北设计研究院有限公司, 甘肃 兰州 730000

作者简介:

贾俊峰(1982-),男,博士,教授,主要从事桥梁抗震减震。E-mail:jiajunfeng@bjut.edu.cn。

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中图分类号:

U448.13

基金项目:

国家自然科学基金(52178449,52478485);中国市政工程西北设计研究院有限公司科技计划(XBSZKY2131)


A review of design and construction of controlled rocking uplift high-pier bridges in New Zealand:a case study of the South Rangitikei Railway Bridge
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Affiliation:

1.Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100124 , China ;2.CCCC Infrastructure Maintenance Group Co., Ltd., Beijing 100102 , China ;3.CCCC Road & Bridge Inspection and Maintenance Co., Ltd., Beijing 101399 , China ;4.CSCEC AECOM Consultants Co., Ltd., Lanzhou 730000 , Gansu, China

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    摘要:

    可控摇摆提离桥梁是新型桥梁抗震体系中的重要研究方向,通过双柱式高墩在横桥向交替升降,使桥墩产生横向提离摇摆以控制传递到细长钢筋混凝土桥墩上的地震作用,同时在桥墩底部摇摆界面处设置消能器以限制墩柱摇摆提升及相应桥台面横向移位。文章首先介绍了自复位摇摆桥梁结构和可控摇摆系统设计理念,对采用可控摇摆提离技术的南兰吉提克铁路桥的设计思想、构造及连接设计、实验研究,以及摇摆桥梁动力行为等进行了系统介绍和总结;然后,概括总结了南兰吉提克铁路桥筒体、桥墩及箱梁等主要构件的施工过程;最后总结了典型可控摇摆提离高墩桥梁的应用前景。研究表明:摇摆结构的自振周期与振幅相关联且非固定,自振频率在一定范围内变化且非平稳存在,不能利用模态正交性分解结构的运动;可控提离高墩桥梁具有较好的地震稳定性,摇摆提离过程中的滞变阻尼效果相当明显,墩柱提离摇摆碰撞及附加消能减震装置可进一步抑制桥梁的地震响应,减小残余位移,增强桥墩自复位能力。该研究可为我国强震区韧性抗震桥梁设计及建造提供经验借鉴。

    Abstract:

    Controlled rocking uplift bridges represent a pivotal advancement in seismic-resilient structural design. Utilizing dual-column high piers that undergo alternate lifting/settling transversely, this bridge induces controlled lateral rocking uplift to mitigate seismic forces transmitted to slender reinforced concrete piers. Energy-dissipating dampers at the pier base rocking interfaces can further restrict uplift displacement and abutment movement. In this review, we first introduce the fundamental concepts of self-centering rocking bridge structures. We then systematically detail the design idea, structural connections, experimental validation, and dynamic behavior of the South Rangitikei Rail Bridge using the controlled rocking uplift technology and summarize construction methodologies for critical components (pylon caissons, piers, and box girders). Finally, the application prospects of typical controlled rocking uplift tall-pier bridges are evaluated. The results demonstrate that (1) rocking structures exhibit amplitude-dependent natural periods and nonstationary vibration frequencies, precluding conventional modal decomposition; (2) uplift-capable piers enhance seismic stability through pronounced hysteretic damping during rocking and uplifting; and (3) impact mechanisms at uplift interfaces, combined with supplemental damping devices, effectively suppress seismic responses, minimize residual displacements, and strengthen self-centering capacity. This study provides valuable insights for designing resilient bridges in high-seismicity regions of China.

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引用本文

贾俊峰,郦炎森,郭彬立,等.新西兰可控摇摆提离高墩桥梁设计建造综述——以南兰吉提克铁路桥为例[J].地震工程学报,2025,47(5):1001-1011. DOI:10.20000/j.1000-0844.20240526002

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  • 收稿日期:2024-05-26
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  • 在线发布日期: 2025-07-29
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