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地震激励下斜拉桥振动控制Benchmark模型研究
  • ISSN号:1671-7767
  • 期刊名称:世界桥梁
  • 时间:2015
  • 页码:37-41
  • 分类:U442.55[建筑科学—桥梁与隧道工程;交通运输工程—道路与铁道工程] TU352[建筑科学—结构工程]
  • 作者机构:[1]合肥工业大学土木与水利工程学院,安徽合肥230009
  • 相关基金:国家自然科学基金资助项目(11172087); 国家自然科学青年基金资助项目(51308174);国家自然科学青年基金资助项目(51308173)
  • 相关项目:大尺度土木结构振动分散化智能控制理论与试验研究
中文摘要:

为了在地震波激励下对大跨桥梁结构建立一套振动控制系统评价体系,比较不同控制策略的控制效果,将艾默生纪念桥(Emerson Memorial Bridge)作为斜拉桥振动控制的Benchmark模型,用以研究地震激励下斜拉桥振动控制所采取的各种控制算法和装置的有效性。系统总结十余年来各国学者在该研究中涉及到的各种传统控制算法以及智能算法,阐述了该桥被动控制、主动控制、半主动控制、混合控制的应用情况,对未来的研究趋势进行展望。以艾默生纪念桥为例,选取新型主动EMD阻尼器作为控制装置,实施基于模糊推理的智能控制。将EMD装置的速度作为模糊控制器输入,制定模糊规则,快速、有效地确定EMD装置输出电压,从而对该桥在线实时控制。数值仿真结果表明:18项控制指标接近于样本控制,尤其对基础处剪力、倾覆力矩以及桥塔处拉索的减振控制效果明显。

英文摘要:

In order to establish a set of vibration control assessing system for long-span bridge structures under the excitation of earthquakes and compare the effects of different control measures,the Emerson Memorial Bridge is taken as the benchmark model for vibration control of cablestayed bridge,to study the efficiency of all the control calculation methods and devices for vibration control of cable-stayed bridge under earthquake excitation.Various conventional control calculation methods and intelligent calculation methods associated with the studies conducted by scholars from different countries in the past ten-odd years were systematically summarized.The implementation conditions of the passive control,positive control,semi-passive control and hybrid control were set forth,and proposals were given for the future study.The Emerson Memorial Bridge is cited as an example,a new type of EMD dampers were selected as the control devices to carry out the intelligent control based on fuzzy inference.The speed of the EMD dampers were input as the fuzzy control device,and the fuzzy rules were formulated,the output voltage of EMD dampers were rapidly and efficiently determined,so that the online real-time control of the bridge was realized.The results of the numerical simulation demonstrate that 18 control indexes are close to the sample control and especially have distinct effects on the control of shear force and overturning moment at the foundations and vibration damping control effect of the stay cables at the pylons.

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期刊信息
  • 《世界桥梁》
  • 北大核心期刊(2011版)
  • 主管单位:中国铁路工程总公司
  • 主办单位:中铁大桥局集团有限公司
  • 主编:胡贵琼
  • 地址:湖北省武汉市建设大道103号
  • 邮编:430034
  • 邮箱:sjql@ztmbec.com
  • 电话:027-83550081
  • 国际标准刊号:ISSN:1671-7767
  • 国内统一刊号:ISSN:42-1681/U
  • 邮发代号:38-55
  • 获奖情况:
  • 中文核心期刊,《CAJ-CD规范》执行优秀期刊
  • 国内外数据库收录:
  • 中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版)
  • 被引量:4078