Article(id=1227627586289860685, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1227620260010979924, articleNumber=null, orderNo=null, doi=10.16385/j.cnki.issn.1004-4523.2024.05.011, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1655308800000, receivedDateStr=2022-06-16, revisedDate=1661356800000, revisedDateStr=2022-08-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1770618824789, onlineDateStr=2026-02-09, pubDate=1716825600000, pubDateStr=2024-05-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1770618824789, onlineIssueDateStr=2026-02-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1770618824789, creator=13701087609, updateTime=1770618824789, updator=13701087609, issue=Issue{id=1227620260010979924, tenantId=1146029695717560320, journalId=1225147924628267009, year='2024', volume='37', issue='5', pageStart='729', pageEnd='902', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1770617078068, creator=13701087609, updateTime=1770795280844, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1228367696677499202, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1227620260010979924, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1228367696677499203, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1227620260010979924, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=830, endPage=837, ext={EN=ArticleExt(id=1227627588026302542, articleId=1227627586289860685, tenantId=1146029695717560320, journalId=1225147924628267009, language=EN, title=Vortex-induced vibration performance and aerodynamic countermeasures of Π-shaped composite girder of a cable-stayed bridge, columnId=null, journalTitle=Journal of Vibration Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Π-shaped composite deck is an elastic bluff body,which is susceptible to aerodynamic instability. In the present study,a cable-stayed bridge with a Π-shaped composite deck is taken as the research object,and the vortex-induced vibration (VIV) and the aerodynamic countermeasures are investigated by using the small-scale wind tunnel tests and computational fluid dynamics (CFD) method. The wind speed range of the VIV for the Π-shaped composite deck is determined via the wind tunnel test. After that,several VIV mitigation measures are investigated. The computational fluid dynamics (CFD) method is used to study the mechanism of VIV and vibration suppression by aerodynamic measures. The results indicate that the VIV in the original section is caused by the interaction of the periodic shedding of the vortex in the wake area and the vortex evolution on the upper and lower surfaces of the girder; After adopting three different aerodynamic measures,the flow can pass through the section more smoothly,so as to mitigate the VIV effectively,except for the upper inverted L-shaped guide plate at the wind attack angle of +3°. This study can offer guidance on the wind-resistant design of a cable-stayed bridge with a Π-shaped composite deck.
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Π型叠合梁为气动钝体结构,容易发生气动失稳。本文以一座Π型截面叠合梁斜拉桥作为工程背景,采用风洞节段模型试验与计算流体动力学(CFD)方法,对主梁的涡激振动性能及相应的气动抑振措施展开了研究。在风洞节段模型试验中获得涡激振动风速区间,讨论了不同气动措施的抑振效果,运用计算流体动力学(CFD)方法对主梁涡振发生机理及气动措施抑振机理进行了初步研究。结果表明:在原始断面下,由于尾迹区旋涡的周期性脱落以及主梁上、下表面旋涡演变的相互作用,导致了涡激振动发生。在采取三种不同抑振措施后,除采用上L型导流板断面在+3°风攻角下发生扭转涡振外,其余优化断面均能使得来流平稳地通过,从而抑制涡振发生。本研究可对Π型叠合梁断面的斜拉桥抗风设计提供一定参考。
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蒋尚君(2000—),男,硕士研究生。E-mail:jsj18382261066@163.com。
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Cross section of main girder (Unit: mm), figureFileSmall=DbJ2Ulucfu5A/8LCih8+Ig==, figureFileBig=Xy4gJaq+gyDqEghw58quxw==, tableContent=null), ArticleFig(id=1227675668230631534, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图1, caption=
主梁横断面图(单位:mm), figureFileSmall=DbJ2Ulucfu5A/8LCih8+Ig==, figureFileBig=Xy4gJaq+gyDqEghw58quxw==, tableContent=null), ArticleFig(id=1227675668348072052, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Fig.2, caption=
The VIV response under small damping ratio, figureFileSmall=M1KaugrqEC0RVgACS4UmCw==, figureFileBig=6tM2vcaqDC3ft15UC+zV9w==, tableContent=null), ArticleFig(id=1227675668431958138, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图2, caption=
小阻尼比涡振响应, figureFileSmall=M1KaugrqEC0RVgACS4UmCw==, figureFileBig=6tM2vcaqDC3ft15UC+zV9w==, tableContent=null), ArticleFig(id=1227675668511649919, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Fig.3, caption=
The VIV response under standard damping ratio, figureFileSmall=/+ZmrhlCD28h2mUBuIVK2w==, figureFileBig=ErkpR3GC4f1jZSpyAsX74A==, tableContent=null), ArticleFig(id=1227675668608118913, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图3, caption=
规范规定阻尼比涡振响应, figureFileSmall=/+ZmrhlCD28h2mUBuIVK2w==, figureFileBig=ErkpR3GC4f1jZSpyAsX74A==, tableContent=null), ArticleFig(id=1227675668687810694, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Fig.4, caption=
The schematic diagram of upper inverted L-shaped guide plate (Unit: mm), figureFileSmall=ubCy7KMk8V4HXYBto6JkKw==, figureFileBig=65hoh5MgURvaJV41wsWB4g==, tableContent=null), ArticleFig(id=1227675668792668298, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图4, caption=
上L型导流板示意图(单位:mm), figureFileSmall=ubCy7KMk8V4HXYBto6JkKw==, figureFileBig=65hoh5MgURvaJV41wsWB4g==, tableContent=null), ArticleFig(id=1227675668889137296, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Fig.5, caption=
The VIV response after employing the upper inverted L-shaped guide plate as the vibration suppression measure, figureFileSmall=6YGHQpR27p8YL73U/OaQfw==, figureFileBig=jlUDeqNBxUZP9I/CAGtDIQ==, tableContent=null), ArticleFig(id=1227675668973023381, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图5, caption=
增设上L型导流板作为抑振措施的涡振响应, figureFileSmall=6YGHQpR27p8YL73U/OaQfw==, figureFileBig=jlUDeqNBxUZP9I/CAGtDIQ==, tableContent=null), ArticleFig(id=1227675669040132249, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Fig.6, caption=
The schematic diagram of wind fairing (Unit: mm), figureFileSmall=8ZQz4sroDBSXa/qCPb5h5g==, figureFileBig=pJlveZs8AVxcTGg/wicCPg==, tableContent=null), ArticleFig(id=1227675669140795552, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图6, caption=
风嘴示意图(单位:mm), figureFileSmall=8ZQz4sroDBSXa/qCPb5h5g==, figureFileBig=pJlveZs8AVxcTGg/wicCPg==, tableContent=null), ArticleFig(id=1227675669241458852, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Fig.7, caption=
The VIV response after employing the wind fairing as the vibration suppression measure, figureFileSmall=7pa3YXZx98w6YmN0jgUpDA==, figureFileBig=rPJlAgCzf1tVBAgUJ45C2A==, tableContent=null), ArticleFig(id=1227675669325344934, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图7, caption=
增设风嘴作为抑振措施的涡振响应, figureFileSmall=7pa3YXZx98w6YmN0jgUpDA==, figureFileBig=rPJlAgCzf1tVBAgUJ45C2A==, tableContent=null), ArticleFig(id=1227675669409231018, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Fig.8, caption=
The schematic diagram of the combined wind fairing with side plate as the vibration suppression measure, figureFileSmall=Y5fv2Eix82Mafos673xBCQ==, figureFileBig=PXnxFVFtE5gJebeIcRGnIw==, tableContent=null), ArticleFig(id=1227675669493117104, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图8, caption=
增设风嘴加水平导流板作为抑振措施的示意图, figureFileSmall=Y5fv2Eix82Mafos673xBCQ==, figureFileBig=PXnxFVFtE5gJebeIcRGnIw==, tableContent=null), ArticleFig(id=1227675669577003189, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Fig.9, caption=
The VIV response after employing the combined wind fairing with side plate as the vibration suppression measure, figureFileSmall=ERqNYSvR59n/7a9KrH7feQ==, figureFileBig=YxNFtjgJ/vXwOvIwi4uEDg==, tableContent=null), ArticleFig(id=1227675669727998140, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图9, caption=
增设风嘴加水平导流板为抑振措施的涡振响应, figureFileSmall=ERqNYSvR59n/7a9KrH7feQ==, figureFileBig=YxNFtjgJ/vXwOvIwi4uEDg==, tableContent=null), ArticleFig(id=1227675669820272832, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Fig.10, caption=
Computational domain and boundary conditions, figureFileSmall=ddWrZnCVzW/3TFaylg+Uyg==, figureFileBig=/Iw0MgxkS/8Y4i0HhRpL8A==, tableContent=null), ArticleFig(id=1227675671216976067, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图10, caption=
计算域与边界条件, figureFileSmall=ddWrZnCVzW/3TFaylg+Uyg==, figureFileBig=/Iw0MgxkS/8Y4i0HhRpL8A==, tableContent=null), ArticleFig(id=1227675671334416583, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Fig.11, caption=
Mesh independence study for the original section, figureFileSmall=/t2T9b9uDyfrsOwfHAGgEQ==, figureFileBig=FqUT8gcYqUyT4tia5jEREQ==, tableContent=null), ArticleFig(id=1227675671435079884, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图11, caption=
原始断面网格无关性研究, figureFileSmall=/t2T9b9uDyfrsOwfHAGgEQ==, figureFileBig=FqUT8gcYqUyT4tia5jEREQ==, tableContent=null), ArticleFig(id=1227675671510577359, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Fig.12, caption=
Time history of lift coefficient, figureFileSmall=EzNnOnWTN7zIaU0QsDokmg==, figureFileBig=53YEP5MWxbbN+HrDiTeDaA==, tableContent=null), ArticleFig(id=1227675671586074835, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图12, caption=
升力系数时程, figureFileSmall=EzNnOnWTN7zIaU0QsDokmg==, figureFileBig=53YEP5MWxbbN+HrDiTeDaA==, tableContent=null), ArticleFig(id=1227675671674155222, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Fig.13, caption=
Streamlines around original section at different times, figureFileSmall=qkxNyEhXWRKKukWRADCsdg==, figureFileBig=44tbGVTGO49YtKtGDic60w==, tableContent=null), ArticleFig(id=1227675671779012827, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图13, caption=
不同时刻原始断面流线图, figureFileSmall=qkxNyEhXWRKKukWRADCsdg==, figureFileBig=44tbGVTGO49YtKtGDic60w==, tableContent=null), ArticleFig(id=1227675671858704609, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Fig.14, caption=
Streamlines after employing the combined wind fairing with side plate as the vibration suppression measure at 0° wind attack angle, figureFileSmall=/5ZU40EfowYsmD3F0m6r0Q==, figureFileBig=T60+bk449AF5fHdjqBhnXQ==, tableContent=null), ArticleFig(id=1227675671938396389, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图14, caption=
0°风攻角下增设风嘴加水平导流作为抑振措施的板流线图, figureFileSmall=/5ZU40EfowYsmD3F0m6r0Q==, figureFileBig=T60+bk449AF5fHdjqBhnXQ==, tableContent=null), ArticleFig(id=1227675672026476780, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Fig.15, caption=
Streamlines after employing the wind fairing as the vibration suppression measure at 0° wind attack angle, figureFileSmall=C1HrgZotfe5KF3UFjWAdqA==, figureFileBig=GMw6WKP1G6HxmgiEZTf7mQ==, tableContent=null), ArticleFig(id=1227675672143917300, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图15, caption=
0°风攻角下增设风嘴作为抑振措施的流线图, figureFileSmall=C1HrgZotfe5KF3UFjWAdqA==, figureFileBig=GMw6WKP1G6HxmgiEZTf7mQ==, tableContent=null), ArticleFig(id=1227675672244580600, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Fig.16, caption=
Streamlines after employing the upper inverted L-shaped guide plate as the vibration suppression measure at 0° wind attack angle, figureFileSmall=XhiBky0PavFLr3inDj7kRw==, figureFileBig=5PKZfcUclwdB6jMuwki+jA==, tableContent=null), ArticleFig(id=1227675672320078078, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=图16, caption=
0°风攻角下增设上L型导流板作为抑振措施的流线图, figureFileSmall=XhiBky0PavFLr3inDj7kRw==, figureFileBig=5PKZfcUclwdB6jMuwki+jA==, tableContent=null), ArticleFig(id=1227675672412352772, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Tab.1, caption=
The parameters of section model of bridge main girder
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数名称 | 符号 | 单位 | 缩尺比 | 实桥值 | 模型值 |
|---|
| 主梁高 | H | m | 1/50 | 4.027 | 0.08 |
| 主梁宽 | B | m | 1/50 | 38 | 0.76 |
| 单位长度质量 | m | kg/m | 1/502 | 76080 | 30.43 |
| 单位长度质量惯性矩 | Im | kg·m2/m | 1/504 | 8935000 | 1.254 |
| 回转半径 | r | m | 1/50 | 10.837 | 0.237 |
), ArticleFig(id=1227675672529793293, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=表1, caption=
主梁节段模型参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数名称 | 符号 | 单位 | 缩尺比 | 实桥值 | 模型值 |
|---|
| 主梁高 | H | m | 1/50 | 4.027 | 0.08 |
| 主梁宽 | B | m | 1/50 | 38 | 0.76 |
| 单位长度质量 | m | kg/m | 1/502 | 76080 | 30.43 |
| 单位长度质量惯性矩 | Im | kg·m2/m | 1/504 | 8935000 | 1.254 |
| 回转半径 | r | m | 1/50 | 10.837 | 0.237 |
), ArticleFig(id=1227675672613679379, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Tab.2, caption=
Fundamental frequencies of the bridge
, figureFileSmall=null, figureFileBig=null, tableContent=
| 振型 | 竖弯频率/Hz | 扭转频率/Hz | 临界风速/(m·s-1) |
|---|
| 单跨正对称双跨反对称 | 0.2085 | 0.6064 | 91.7 |
| 单跨正对称双跨正对称 | 0.3418 | 0.6803 | 100 |
| 单跨反对称双跨反对称 | 0.3823 | 0.7369 | 114.8 |
| 单跨反对称双跨正对称 | 0.5831 | 0.7602 | 97.4 |
), ArticleFig(id=1227675672756285723, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=表2, caption=
桥梁基频
, figureFileSmall=null, figureFileBig=null, tableContent=
| 振型 | 竖弯频率/Hz | 扭转频率/Hz | 临界风速/(m·s-1) |
|---|
| 单跨正对称双跨反对称 | 0.2085 | 0.6064 | 91.7 |
| 单跨正对称双跨正对称 | 0.3418 | 0.6803 | 100 |
| 单跨反对称双跨反对称 | 0.3823 | 0.7369 | 114.8 |
| 单跨反对称双跨正对称 | 0.5831 | 0.7602 | 97.4 |
), ArticleFig(id=1227675672852754724, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=EN, label=Tab.3, caption=
The St number under various cases
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 试验St数 | 模拟St数 | 误差 |
|---|
| -3° | 0.0792 | 0.0756 | 4.50% |
| 0° | 0.0736 | 0.0711 | 3.40% |
| +3° | 0.0699 | 0.0721 | 3.10% |
), ArticleFig(id=1227675672949223724, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227627586289860685, language=CN, label=表3, caption=
不同工况下原始断面的St数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 试验St数 | 模拟St数 | 误差 |
|---|
| -3° | 0.0792 | 0.0756 | 4.50% |
| 0° | 0.0736 | 0.0711 | 3.40% |
| +3° | 0.0699 | 0.0721 | 3.10% |
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