桥梁减震和防止落梁措施研究进展  

Research Progress on Bridge Vibration Reduction and Unseating Prevention Measures

作　　者：邢心魁[1,2,3] 林揽日 覃荷瑛 XING Xin-kui;LIN Lan-ri;QIN He-ying(College of Civil and Architecture Engineering,Guilin University of Technology,Guilin 541004,China;Collaborative Innovation Center for Exploration of Hidden Nonferrous Metal Deposits and Development of New Materials in Guangxi,Guilin 541004,China;Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering,Guilin 541004,China)

机构地区：[1]桂林理工大学土木与建筑工程学院,桂林541004 [2]广西有色金属隐伏矿床勘查及材料开发协同创新中心,桂林541004 [3]广西岩土力学与工程重点实验室,桂林541004

出　　处：《科学技术与工程》2021年第3期862-871,共10页Science Technology and Engineering

基　　金：国家自然科学基金(51768014);广西创新驱动发展专项(桂科AA18118008)。

摘　　要：地震作用下桥梁各组件之间会产生较大的相对位移,导致主梁梁端及梁台之间易发生碰撞,甚至可能引起落梁。在桥梁上安装减震和防止落梁装置是解决该问题的重要途径。近半世纪以来,研究人员提出了各种桥梁减震和防止落梁措施来减缓桥梁上下部结构地震冲击和限制相对运动以减轻桥梁损害。为了选择和设计合适的装置,了解以往研究的结果非常重要。对中外采用不同限位、耗能原理的减震和防止落梁措施进行分类并对其研究进展进行归纳总结,同时对有关装置的优点和不足之处进行讨论,对地震作用下桥梁减震和防止落梁措施的未来研究方向提出展望。Under the action of earthquakes,large relative displacements will occur between the components of the bridge,resulting in collisions between the main beam and abutment,which may even cause the beam to fall.Installing vibration reduction and unseating prevention devices is an important way to solve this problem.In the past half century,researchers had proposed various vibration reduction and unseating prevention measures to reduce the earthquake impact and limit the relative motion of the bridge.In order to select and design an appropriate device,it is important to understand the results of previous studies.The measures of vibration reduction and unseating prevention adopted by different limiting and energy consumption principles at home and abroad were classified,and the research progress was summarized,the advantages and disadvantages of the relevant devices were also discussed.Finally,the future research direction of vibration reduction and unseating prevention measures for bridges under earthquake was proposed.

关 键 词：桥梁 地震作用 碰撞 减震 防止落梁 

分 类 号：U443.362[建筑科学—桥梁与隧道工程]