| 震后可恢复功能桥梁结构之摇摆桥梁研究综述 |
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| 引用本文： | 韩强,贾振雷,周雨龙,杜修力.震后可恢复功能桥梁结构之摇摆桥梁研究综述[J].中国公路学报,2021,34(2):118-133. |
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| 作者姓名： | 韩强 贾振雷 周雨龙 杜修力 |
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| 作者单位： | 1. 北京工业大学城市与工程安全减灾教育部重点实验室, 北京 100124;
2. 交通运输部公路科学研究院, 北京 100088 |
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| 基金项目： | 国家重点研发计划项目(2018YFC1504306);国家自然科学基金项目(51838010);北京市教育委员会项目(IDHT20190504,KZ202010005001)。 |
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| 摘 要： | 大震不倒，且震后无需修复或者稍加修复就能恢复正常使用功能理念的震后可恢复功能桥梁结构是桥梁地震工程研究的热点之一。同时具有控制损伤和自复位能力的摇摆结构，是实现结构可恢复功能的一种有效途径。对摇摆桥梁结构的研究历程与进展进行了较为系统的梳理和总结。首先介绍了摇摆结构的起源及其在桥梁工程的应用，然后针对摇摆桥梁结构的研发和试验研究、拟静力行为分析方法、动力行为分析模型、抗震设计方法等方面分别进行了探讨。现有研究表明：摇摆桥梁的合理构造和抗震性能得到了各国学者的试验验证，分析理论和设计方法得到不断的发展，但仍然存在一些需要解决的问题。摇摆构造需面向工程需求，研发构造简单、传力机制可靠、耐久性好的摇摆桥梁结构；动力分析理论上，现有模型没有考虑受压区高度影响，需要发展三维动力分析模型和动能折减系数确定方法，使地震作用下摇摆桥梁地震响应和真实情况相一致；缺乏考虑边界条件约束的摇摆桥梁全桥体系动力响应分析；抗震设计上，主要存在性能指标确定等问题，即在明确摇摆结构性能特征基础上，如何平衡抗震性能与经济性能。
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| 关 键 词： | 桥梁工程 摇摆桥墩 综述 可恢复功能 分析模型 抗震设计 |
| 收稿时间： | 2020-03-05 |
Review of Seismic Resilient Bridge Structures:Rocking Bridges |
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| HAN Qiang,JIA Zhen-lei,ZHOU Yu-long,DU Xiu-li.Review of Seismic Resilient Bridge Structures:Rocking Bridges[J].China Journal of Highway and Transport,2021,34(2):118-133. |
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| Authors: | HAN Qiang JIA Zhen-lei ZHOU Yu-long DU Xiu-li |
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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. Research Institute of Highway Ministry of Transport, Beijing 100088, China |
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| Abstract: | A resilient bridge structure,which not only ensures that the bridge can survive great earthquakes but also ensures that the bridge function can be restored without repair or with minimal repair,is one of the focuses of research on bridge earthquake engineering.The rocking structure,with its ability to control damage and self-center,is an effective way to achieve seismic resilience.In this study,a systematic review and summary of the history and development of rocking bridge structures is presented.First,the origin of the rocking structure and its application in bridge engineering are introduced.Then,research and development of the rocking bridge structure,the method of quasi-static behavior analysis,the dynamic analytical model,and the seismic design method are discussed.The literature review shows that the optimal structure and seismic performance of rocking bridges have been experimentally verified by researchers from various countries.Analytical theories and design methods have been continuously supplemented and developed.However,there are still some problems that need to be solved.The development of a rocking bridge needs to be oriented to the engineering needs,and aims to achieve a simple structure,reliable force transmission mechanism,and better durability.In the dynamic analytical method,the existing model does not consider the influence of the neutral axis depth,and it is necessary to develop a three-dimensional dynamic analytical model and a reliable coefficient of restitution to make the seismic response of the rocking bridge consistent with the real situation under earthquake conditions.Dynamic analysis of the full rocking bridge system should consider the constraints of boundary conditions.In seismic design,there are problems such as the determination of performance indicators,that is,how to balance the seismic performance and economic performance when determining the optimum performance of the rocking structure. |
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| Keywords: | bridge engineering rocking pier review resilience analytical model seismic design |
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