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A simplified method for calculating the longitudinal movement and cumulative displacement of the stiffening girder in long-span suspension bridges under random traffic flow is proposed. In this method, the suspended stiffening girder system is equivalent to a single-degree-of-freedom (SDOF) vibration system. Based on this SDOF system, the longitudinal vibration equations of the suspension bridge’s stiffening girder under moving loads and random traffic flow are derived. A rapid calculation method for the stiffening girder’s longitudinal vibration response under random traffic flow is proposed. Taking an example of a long-span suspension bridge and using existing traffic measurement data, random traffic flow samples are generated based on the Monte Carlo method. These samples are then treated as random loads on the SDOF system. The SDOF vibration equation is solved, and the results are compared with ANSYS dynamic analysis results. The findings reveal that under random traffic flow, the stiffening girder undergoes longitudinal movement and accumulates a significant displacement. This cumulative displacement consists of both static and dynamic components, with the latter contributing more significantly. Compared to the finite element transient dynamic analysis, the displacement response results obtained from the simplified SDOF system show minimal differences in extreme values and root mean square(RMS) values (less than 5%), although there is a slightly larger difference in cumulative displacement (approximately 13% ~ 19%). This indicates that the simplified vibration model can capture the stiffening girder’s longitudinal movement characteristics under random traffic flow. The proposed simplified method greatly simplifies the analysis of the stiffening girder’s longitudinal movement under random traffic flow, enabling response evaluation and parameter optimization in the preliminary design stage.
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为研究大跨度悬索桥在随机车流作用下加劲梁纵向运动及纵向累计位移行程简化计算方法,基于移动荷载作用下加劲梁纵向运动特征,将悬挂加劲梁体系等效为单自度(single-degree-of-freedom,SDOF)振动体系,推导了基于SDOF振动体系的移动荷载作用下悬索桥加劲梁纵向振动方程和随机车流作用下加劲梁纵向振动方程,提出了一种快速计算随机车流作用下加劲梁纵向振动响应的方法。以某单跨悬索桥为实例,基于实测车流数据,采用蒙特卡罗抽样方法生成随机车流样本,将其等效为SDOF体系下随机荷载时程,进行SDOF体系振动方程求解得到纵向响应位移时程,并与基于ANSYS的全桥模型瞬态分析结果进行对比。结果表明:随机车流作用下,加劲梁发生纵向运动并形成巨大累计位移行程,累计位移包括静态位移和动态位移,后者对累计位移贡献更大;与有限元瞬态动力分析相比,基于简化SDOF体系获得的位移响应结果中除累计位移差别稍大(约13% ~ 19%)外,其幅值和均方根值(root mean square,RMS)均差别很小(小于5%),简化振动模型能反映随机车流下加劲梁纵向运动特征规律,所提计算方法可极大地简化随机车流作用下加劲梁纵向运动分析,可用于结构设计阶段随机车流作用下加劲梁纵向运动评估及振动控制参数优化。
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, authorsList=黄国平, 胡建华, 华旭刚, 封周权, 陈政清)}, authors=[Author(id=1241802908359000111, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=gphuang@hnu.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241802908509995071, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, authorId=1241802908359000111, language=EN, stringName=Guoping HUANG, firstName=Guoping, middleName=null, lastName=HUANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.Key Laboratory of Green Building and Intelligent Construction in Higher Educational Institutions of Hunan Province, Hunan City University, Yiyang 413000, China
2.Key Laboratory for Wind and Bridge Engineering of Hunan Province, Hunan University, Changsha 410082, China
4.Hunan Engineering Research Center of Development and Application of Ceramsite Concrete Technology, Hunan City University, Yiyang 413000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241802908681961549, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, authorId=1241802908359000111, language=CN, stringName=黄国平, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.湖南城市学院 绿色建筑与智能建造湖南省普通高等学校重点实验室,湖南 益阳 413000
2.湖南大学 风工程与桥梁工程湖南省重点实验室,湖南 长沙 410082
4.湖南城市学院 陶粒混凝土技术研发与应用湖南省工程研究中心,湖南 益阳 413000, bio={"content":"
黄国平(1982—),男,副教授,博士研究生,主要从事大跨桥梁振动与控制研究。E-mail:gphuang@hnu.edu.cn
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黄国平(1982—),男,副教授,博士研究生,主要从事大跨桥梁振动与控制研究。E-mail:gphuang@hnu.edu.cn
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1.湖南城市学院 绿色建筑与智能建造湖南省普通高等学校重点实验室,湖南 益阳 413000)]), AuthorCompany(id=1241802906417038334, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, xref=2., ext=[AuthorCompanyExt(id=1241802906438009856, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, companyId=1241802906417038334, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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4.湖南城市学院 陶粒混凝土技术研发与应用湖南省工程研究中心,湖南 益阳 413000)])]), Author(id=1241802908824567898, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241802908967174251, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, authorId=1241802908824567898, language=EN, stringName=Jianhua HU, firstName=Jianhua, middleName=null, lastName=HU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2.Key Laboratory for Wind and Bridge Engineering of Hunan Province, Hunan University, Changsha 410082, China
3.Hunan Province Communications Planning, Survey and Design Institute, Changsha 410008, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241802909088809079, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, authorId=1241802908824567898, language=CN, stringName=胡建华, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2.湖南大学 风工程与桥梁工程湖南省重点实验室,湖南 长沙 410082
3.湖南省交通水利建设集团有限公司,湖南 长沙 410008, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241802906417038334, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, xref=2., ext=[AuthorCompanyExt(id=1241802906438009856, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, companyId=1241802906417038334, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Key Laboratory for Wind and Bridge Engineering of Hunan Province, Hunan University, Changsha 410082, China), AuthorCompanyExt(id=1241802906446397440, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, companyId=1241802906417038334, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.湖南大学 风工程与桥梁工程湖南省重点实验室,湖南 长沙 410082)]), AuthorCompany(id=1241802906609975306, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, xref=3., ext=[AuthorCompanyExt(id=1241802906630946830, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, companyId=1241802906609975306, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3.湖南省交通水利建设集团有限公司,湖南 长沙 410008)])]), Author(id=1241802909231415436, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241802909407576232, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, authorId=1241802909231415436, language=EN, stringName=Xugang HUA, firstName=Xugang, middleName=null, lastName=HUA, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2.Key Laboratory for Wind and Bridge Engineering of Hunan Province, Hunan University, Changsha 410082, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241802909562765496, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, authorId=1241802909231415436, language=CN, stringName=华旭刚, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2.湖南大学 风工程与桥梁工程湖南省重点实验室,湖南 长沙 410082, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241802906417038334, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, xref=2., ext=[AuthorCompanyExt(id=1241802906438009856, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, companyId=1241802906417038334, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Key Laboratory for Wind and Bridge Engineering of Hunan Province, Hunan University, Changsha 410082, China), AuthorCompanyExt(id=1241802906446397440, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, companyId=1241802906417038334, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.湖南大学 风工程与桥梁工程湖南省重点实验室,湖南 长沙 410082)])]), Author(id=1241802909688594632, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=zqfeng@hnu.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241802909793452243, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, authorId=1241802909688594632, language=EN, stringName=Zhouquan FENG, firstName=Zhouquan, middleName=null, lastName=FENG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2.Key Laboratory for Wind and Bridge Engineering of Hunan Province, Hunan University, Changsha 410082, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241802909910892766, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, authorId=1241802909688594632, language=CN, stringName=封周权, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2.湖南大学 风工程与桥梁工程湖南省重点实验室,湖南 长沙 410082, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241802906417038334, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, xref=2., ext=[AuthorCompanyExt(id=1241802906438009856, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, companyId=1241802906417038334, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2.Key Laboratory for Wind and Bridge Engineering of Hunan Province, Hunan University, Changsha 410082, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241802910330323211, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, authorId=1241802910095442157, language=CN, stringName=陈政清, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2.湖南大学 风工程与桥梁工程湖南省重点实验室,湖南 长沙 410082, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241802906417038334, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, xref=2., ext=[AuthorCompanyExt(id=1241802906438009856, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, companyId=1241802906417038334, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Structural diagram of a single-span suspension bridge, figureFileSmall=h4ek6VMI9cPYsgyAexHe1A==, figureFileBig=HTsg5URrl03XBZTEaujOkg==, tableContent=null), ArticleFig(id=1241802913786429915, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=图1, caption=
单跨悬索桥的结构示意图, figureFileSmall=h4ek6VMI9cPYsgyAexHe1A==, figureFileBig=HTsg5URrl03XBZTEaujOkg==, tableContent=null), ArticleFig(id=1241802913920647655, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Fig. 2, caption=
Evolution of equivalent model for the girder longitudinal movement, figureFileSmall=sAK4RLrfqzuCBOvDK88Geg==, figureFileBig=qFa3mqIeY1o00PzCeAEssg==, tableContent=null), ArticleFig(id=1241802914029699570, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=图2, caption=
加劲梁纵向运动等效模型演变, figureFileSmall=sAK4RLrfqzuCBOvDK88Geg==, figureFileBig=qFa3mqIeY1o00PzCeAEssg==, tableContent=null), ArticleFig(id=1241802914172305919, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Fig. 3, caption=
Flow of calculating the longitudinal vibration of the stiffening girder of a suspension bridge under random traffic flow, figureFileSmall=xA/+YP4DlHbE0rpnS0YogQ==, figureFileBig=T9kBwUkbFyL2dNPUZjzF7g==, tableContent=null), ArticleFig(id=1241802914323300876, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=图3, caption=
随机车流下悬索桥加劲梁纵向振动计算分析流程, figureFileSmall=xA/+YP4DlHbE0rpnS0YogQ==, figureFileBig=T9kBwUkbFyL2dNPUZjzF7g==, tableContent=null), ArticleFig(id=1241802914465907231, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Fig. 4, caption=
Overall layout of the Aizhai Bridge, figureFileSmall=Vo/2Or3YA/be3UQnXa5g9Q==, figureFileBig=0+EgrD0pFdlh0VtY7IDUAg==, tableContent=null), ArticleFig(id=1241802914566570542, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=图4, caption=
矮寨大桥桥型总体布置, figureFileSmall=Vo/2Or3YA/be3UQnXa5g9Q==, figureFileBig=0+EgrD0pFdlh0VtY7IDUAg==, tableContent=null), ArticleFig(id=1241802914675622459, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Fig. 5, caption=
Influence line of the longitudinal displacement of the stiffening girder of a single-span suspension bridge, figureFileSmall=V3o7FAXY4Wgxqoboaa6lTQ==, figureFileBig=kl7M8bw2vqnzyIljKDzLVg==, tableContent=null), ArticleFig(id=1241802914835006026, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=图5, caption=
单跨悬索桥加劲梁纵向位移影响线, figureFileSmall=V3o7FAXY4Wgxqoboaa6lTQ==, figureFileBig=kl7M8bw2vqnzyIljKDzLVg==, tableContent=null), ArticleFig(id=1241802914973418072, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Fig. 6, caption=
Longitudinal displacement time history of at the beam end under moving loads, figureFileSmall=W52lP9/YVA8XMhcw2cKX6Q==, figureFileBig=remIhcnseDHfNxWeooYvvA==, tableContent=null), ArticleFig(id=1241802915103441512, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=图6, caption=
移动荷载作用下梁端纵向位移时程, figureFileSmall=W52lP9/YVA8XMhcw2cKX6Q==, figureFileBig=remIhcnseDHfNxWeooYvvA==, tableContent=null), ArticleFig(id=1241802915250242168, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Fig. 7, caption=
Distance probability density curves, figureFileSmall=ftlLZr1LbbS1cREDNnOFKw==, figureFileBig=+LeYCFIOCfGLYn8LWIdg+A==, tableContent=null), ArticleFig(id=1241802915443180162, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=图7, caption=
车距概率密度曲线, figureFileSmall=ftlLZr1LbbS1cREDNnOFKw==, figureFileBig=+LeYCFIOCfGLYn8LWIdg+A==, tableContent=null), ArticleFig(id=1241802915606758037, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Fig. 8, caption=
Sparse traffic flow sample, figureFileSmall=GGTuPb15M9ChrxDuRb2uuQ==, figureFileBig=wj56iVWPNGMy3VzBnvt31w==, tableContent=null), ArticleFig(id=1241802917208982183, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=图8, caption=
稀疏车流样本, figureFileSmall=GGTuPb15M9ChrxDuRb2uuQ==, figureFileBig=wj56iVWPNGMy3VzBnvt31w==, tableContent=null), ArticleFig(id=1241802917355782833, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Fig. 9, caption=
Equivalent random traffic flow load, figureFileSmall=tPKBORoC48GMO912pAiHkw==, figureFileBig=rSWYYjJy2ijuXiRZtm4R9Q==, tableContent=null), ArticleFig(id=1241802917485806275, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=图9, caption=
等效随机车流荷载, figureFileSmall=tPKBORoC48GMO912pAiHkw==, figureFileBig=rSWYYjJy2ijuXiRZtm4R9Q==, tableContent=null), ArticleFig(id=1241802917620024019, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Fig. 10, caption=
Longitudinal displacement response of the stiffening girder under random traffic flow, figureFileSmall=fzSaTd1wH/VlSd0Kk+I/MA==, figureFileBig=iPPHk4Dg+1RS3z7HXsg6Hg==, tableContent=null), ArticleFig(id=1241802917733270245, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=图10, caption=
随机车流下加劲梁纵向位移响应, figureFileSmall=fzSaTd1wH/VlSd0Kk+I/MA==, figureFileBig=iPPHk4Dg+1RS3z7HXsg6Hg==, tableContent=null), ArticleFig(id=1241802917905236725, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Table 1, caption=
Calculation parameters of the equivalent model under moving loads
, figureFileSmall=null, figureFileBig=null, tableContent=
| 等效模型 | 有无中央扣 | 质量/t | 频率/Hz | 刚度/(×107 N/m) | 阻尼比 |
|---|
| 纵向荷载模型 | 有 | 28166.9 | — | keq = 6.19 | 0.005 |
| 无 | 28166.9 | — | keq =1.32 | 0.005 |
| SDOF模型 | 有 | 28166.9 | 0.116 | kSD =1.50 | 0.005 |
| 无 | 28166.9 | 0.103 | kSD =1.18 | 0.005 |
), ArticleFig(id=1241802918047843076, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=表1, caption=
移动荷载作用下等效模型计算参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 等效模型 | 有无中央扣 | 质量/t | 频率/Hz | 刚度/(×107 N/m) | 阻尼比 |
|---|
| 纵向荷载模型 | 有 | 28166.9 | — | keq = 6.19 | 0.005 |
| 无 | 28166.9 | — | keq =1.32 | 0.005 |
| SDOF模型 | 有 | 28166.9 | 0.116 | kSD =1.50 | 0.005 |
| 无 | 28166.9 | 0.103 | kSD =1.18 | 0.005 |
), ArticleFig(id=1241802918207226650, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Table 2, caption=
Response statistics at the beam end under moving load
, figureFileSmall=null, figureFileBig=null, tableContent=
| 计算工况 | 位移/mm | 速度/(mm/s) |
|---|
| 累计值 | 幅值 | 均方根值 | 幅值 | 均方根值 |
|---|
| 无中央扣 | 移动荷载 | 91.3 | 17.3 | 9.4 | 4.7 | 2.2 |
| SDOF+影响函数 | 99.5 | 16.1 | 9.4 | 4.3 | 2.3 |
| SDOF+正弦函数 | 58.0 | 13.0 | 8.6 | 2.7 | 1.4 |
| 纵向荷载+影响函数 | 74.3 | 15.4 | 9.7 | 4.4 | 1.9 |
| 纵向荷载+正弦函数 | 52.4 | 13.3 | 9.2 | 2.8 | 1.4 |
| 有中央扣 | 移动荷载 | 53.5 | 10.3 | 6.1 | 2.7 | 1.4 |
| SDOF+影响函数 | 59.9 | 10.7 | 6.2 | 2.8 | 1.4 |
| SDOF+正弦函数 | 54.3 | 12.4 | 7.7 | 2.6 | 1.3 |
| 纵向荷载+影响函数 | 38.3 | 9.6 | 6.5 | 2.5 | 1.2 |
| 纵向荷载+正弦函数 | 38.4 | 9.6 | 6.6 | 2.4 | 1.2 |
), ArticleFig(id=1241802918341444393, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=表2, caption=
移动荷载作用下梁端响应统计值
, figureFileSmall=null, figureFileBig=null, tableContent=
| 计算工况 | 位移/mm | 速度/(mm/s) |
|---|
| 累计值 | 幅值 | 均方根值 | 幅值 | 均方根值 |
|---|
| 无中央扣 | 移动荷载 | 91.3 | 17.3 | 9.4 | 4.7 | 2.2 |
| SDOF+影响函数 | 99.5 | 16.1 | 9.4 | 4.3 | 2.3 |
| SDOF+正弦函数 | 58.0 | 13.0 | 8.6 | 2.7 | 1.4 |
| 纵向荷载+影响函数 | 74.3 | 15.4 | 9.7 | 4.4 | 1.9 |
| 纵向荷载+正弦函数 | 52.4 | 13.3 | 9.2 | 2.8 | 1.4 |
| 有中央扣 | 移动荷载 | 53.5 | 10.3 | 6.1 | 2.7 | 1.4 |
| SDOF+影响函数 | 59.9 | 10.7 | 6.2 | 2.8 | 1.4 |
| SDOF+正弦函数 | 54.3 | 12.4 | 7.7 | 2.6 | 1.3 |
| 纵向荷载+影响函数 | 38.3 | 9.6 | 6.5 | 2.5 | 1.2 |
| 纵向荷载+正弦函数 | 38.4 | 9.6 | 6.6 | 2.4 | 1.2 |
), ArticleFig(id=1241802918458884920, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Table 3, caption=
Vehicle type and lane statistics
, figureFileSmall=null, figureFileBig=null, tableContent=
| 车型 | 车型描述 | 车型比例 | 行车道比例 |
|---|
| 行车道 | 超车道 |
|---|
| V1 | 小型客车 | 0.58 | 0.3664 | 0.6336 |
| V2 | 双轴货车 | 0.11 | 0.6458 | 0.3542 |
| V3 | 3轴货车 | 0.03 | 0.6108 | 0.3892 |
| V4 | 4轴挂车 | 0.04 | 0.7642 | 0.2358 |
| V5 | 5轴挂车 | 0.06 | 0.7260 | 0.2742 |
| V6 | 6轴挂车 | 0.18 | 0.8808 | 0.1192 |
), ArticleFig(id=1241802918601491272, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=表3, caption=
车型及车道统计数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 车型 | 车型描述 | 车型比例 | 行车道比例 |
|---|
| 行车道 | 超车道 |
|---|
| V1 | 小型客车 | 0.58 | 0.3664 | 0.6336 |
| V2 | 双轴货车 | 0.11 | 0.6458 | 0.3542 |
| V3 | 3轴货车 | 0.03 | 0.6108 | 0.3892 |
| V4 | 4轴挂车 | 0.04 | 0.7642 | 0.2358 |
| V5 | 5轴挂车 | 0.06 | 0.7260 | 0.2742 |
| V6 | 6轴挂车 | 0.18 | 0.8808 | 0.1192 |
), ArticleFig(id=1241802918765069144, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Table 4, caption=
Vehicle weight statistics
, figureFileSmall=null, figureFileBig=null, tableContent=
| 车型 | 分布参数 | 车型 | 分布参数 |
|---|
| 权重系数 | μi/kN | σi/kN | 权重系数 | μi/kN | σi/kN |
|---|
| V1 | 1.0 | 40 | 4 | V2 | 1.0 | 180 | 38 |
| 0.3 | 190 | 40 | | 0.4 | 250 | 52 |
| V3 | 0.7 | 307 | 60 | V4 | 0.6 | 420 | 84 |
| 0.5 | 300 | 65 | | 0.5 | 300 | 80 |
| V5 | 0.5 | 600 | 120 | V6 | 0.5 | 710 | 180 |
), ArticleFig(id=1241802918962201451, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=表4, caption=
车重统计数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 车型 | 分布参数 | 车型 | 分布参数 |
|---|
| 权重系数 | μi/kN | σi/kN | 权重系数 | μi/kN | σi/kN |
|---|
| V1 | 1.0 | 40 | 4 | V2 | 1.0 | 180 | 38 |
| 0.3 | 190 | 40 | | 0.4 | 250 | 52 |
| V3 | 0.7 | 307 | 60 | V4 | 0.6 | 420 | 84 |
| 0.5 | 300 | 65 | | 0.5 | 300 | 80 |
| V5 | 0.5 | 600 | 120 | V6 | 0.5 | 710 | 180 |
), ArticleFig(id=1241802919167722370, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Table 5, caption=
Vehicle speed statistics
, figureFileSmall=null, figureFileBig=null, tableContent=
| 车型 | 速度 | 车型 | 速度 |
|---|
| 均值 | 标准差 | 均值 | 标准差 |
|---|
| V1 | 81.9 | 14.9 | V4 | 70.0 | 6.9 |
| V2 | 67.5 | 4.2 | V5 | 68.5 | 6.2 |
| V3 | 75.5 | 10.2 | V6 | 65.3 | 8.8 |
), ArticleFig(id=1241802919306134417, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=表5, caption=
车速统计数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 车型 | 速度 | 车型 | 速度 |
|---|
| 均值 | 标准差 | 均值 | 标准差 |
|---|
| V1 | 81.9 | 14.9 | V4 | 70.0 | 6.9 |
| V2 | 67.5 | 4.2 | V5 | 68.5 | 6.2 |
| V3 | 75.5 | 10.2 | V6 | 65.3 | 8.8 |
), ArticleFig(id=1241802919545209765, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Table 6, caption=
Response statistics of longitudinal motion of stiffeners
, figureFileSmall=null, figureFileBig=null, tableContent=
| 计算方法 | 位移/cm | 速度/(cm/s) | 加速度/(cm/s2) |
|---|
| 累计值 | 幅值 | 均方根值 | 幅值 | 均方根值 | 幅值 | 均方根值 |
|---|
| 稀疏车流 | 静态 | 111.06 | 5.41 | 2.92 | 0.64 | 0.13 | 1.83 | 0.11 |
| 全桥模型瞬态 | 598.63 | 7.80 | 3.07 | 4.37 | 0.69 | 5.75 | 0.67 |
| 简化SDOF模型 | 478.99 | 7.51 | 3.05 | 2.36 | 0.57 | 4.62 | 0.40 |
| 一般车流 | 静态 | 149.37 | 5.44 | 2.31 | 0.51 | 0.16 | 1.60 | 0.17 |
| 全桥模型瞬态 | 534.86 | 6.39 | 2.45 | 2.81 | 0.59 | 3.55 | 0.54 |
| 简化SDOF模型 | 462.05 | 6.71 | 2.42 | 1.79 | 0.52 | 2.30 | 0.36 |
| 密集车流 | 静态 | 334.13 | 8.39 | 2.48 | 1.16 | 0.36 | 2.85 | 0.39 |
| 全桥模型瞬态 | 1569.88 | 10.50 | 3.25 | 4.80 | 1.57 | 5.00 | 1.44 |
| 简化SDOF模型 | 1265.07 | 11.45 | 3.10 | 3.28 | 1.17 | 3.15 | 0.81 |
), ArticleFig(id=1241802919687816109, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=表6, caption=
加劲梁纵向运动响应统计值
, figureFileSmall=null, figureFileBig=null, tableContent=
| 计算方法 | 位移/cm | 速度/(cm/s) | 加速度/(cm/s2) |
|---|
| 累计值 | 幅值 | 均方根值 | 幅值 | 均方根值 | 幅值 | 均方根值 |
|---|
| 稀疏车流 | 静态 | 111.06 | 5.41 | 2.92 | 0.64 | 0.13 | 1.83 | 0.11 |
| 全桥模型瞬态 | 598.63 | 7.80 | 3.07 | 4.37 | 0.69 | 5.75 | 0.67 |
| 简化SDOF模型 | 478.99 | 7.51 | 3.05 | 2.36 | 0.57 | 4.62 | 0.40 |
| 一般车流 | 静态 | 149.37 | 5.44 | 2.31 | 0.51 | 0.16 | 1.60 | 0.17 |
| 全桥模型瞬态 | 534.86 | 6.39 | 2.45 | 2.81 | 0.59 | 3.55 | 0.54 |
| 简化SDOF模型 | 462.05 | 6.71 | 2.42 | 1.79 | 0.52 | 2.30 | 0.36 |
| 密集车流 | 静态 | 334.13 | 8.39 | 2.48 | 1.16 | 0.36 | 2.85 | 0.39 |
| 全桥模型瞬态 | 1569.88 | 10.50 | 3.25 | 4.80 | 1.57 | 5.00 | 1.44 |
| 简化SDOF模型 | 1265.07 | 11.45 | 3.10 | 3.28 | 1.17 | 3.15 | 0.81 |
), ArticleFig(id=1241802919922697162, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=EN, label=Table 7, caption=
Amplification factor of longitudinal displacement response
, figureFileSmall=null, figureFileBig=null, tableContent=
| 计算方法 | 稀疏车流 | 一般车流 | 密集车流 |
|---|
| 累计值 | 幅值 | 均方根值 | 累计值 | 幅值 | 均方根值 | 累计值 | 幅值 | 均方根值 |
|---|
| 全桥模型瞬态 | 5.39 | 1.44 | 1.05 | 3.58 | 1.17 | 1.06 | 4.70 | 1.25 | 1.31 |
| 简化SDOF模型 | 4.31 | 1.39 | 1.04 | 3.09 | 1.23 | 1.05 | 3.79 | 1.36 | 1.25 |
), ArticleFig(id=1241802920182744026, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1241793464053076907, language=CN, label=表7, caption=
纵向位移响应放大系数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 计算方法 | 稀疏车流 | 一般车流 | 密集车流 |
|---|
| 累计值 | 幅值 | 均方根值 | 累计值 | 幅值 | 均方根值 | 累计值 | 幅值 | 均方根值 |
|---|
| 全桥模型瞬态 | 5.39 | 1.44 | 1.05 | 3.58 | 1.17 | 1.06 | 4.70 | 1.25 | 1.31 |
| 简化SDOF模型 | 4.31 | 1.39 | 1.04 | 3.09 | 1.23 | 1.05 | 3.79 | 1.36 | 1.25 |
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