Article(id=1227620262393344609, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1227620260010979924, articleNumber=null, orderNo=null, doi=10.16385/j.cnki.issn.1004-4523.2024.05.010, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1666108800000, receivedDateStr=2022-10-19, revisedDate=1671465600000, revisedDateStr=2022-12-20, acceptedDate=null, acceptedDateStr=null, onlineDate=1770617078636, onlineDateStr=2026-02-09, pubDate=1716825600000, pubDateStr=2024-05-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1770617078636, onlineIssueDateStr=2026-02-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1770617078636, creator=13701087609, updateTime=1770617078636, 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=822, endPage=829, ext={EN=ArticleExt(id=1227620263811019376, articleId=1227620262393344609, tenantId=1146029695717560320, journalId=1225147924628267009, language=EN, title=Dynamic effect analysis of longitudinal connecting slab of floating slab track in urban rail transit, columnId=null, journalTitle=Journal of Vibration Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
The longitudinal linkage of the floating slab track (FST) has weakness due to the dynamic effects of FST longitudinal linkage,which are not adequately considered in the track design. By introducing the method of equivalent density and equivalent foundation coefficient to simplify the model of the base of a steel-spring-FST system,a three-dimensional finite element model of vibration characteristics analysis of prefabricated short and cast-in-situ FST system is established. In the proposed model,the influence of the rail,shear hinge,and foundation under the slab on the vibration characteristics of the floating slab structure is fully considered. The modal analysis and harmonic response analysis are analyzed with a focus on the dynamic effect characteristics of the longitudinal connecting slab of the FST system. The results show that: The modal shape of the FST in the low frequency band of 1~200 Hz mainly shows four types of motion: rigid body motion,bending,bending-torsion combination and torsion; For the prefabricated slab track system,the frequency band in which the floating slab dominates the vibration characteristics of the system conforms the system modal analysis and harmonious response analysis; For the cast-in-situ slab track system,when the frequency is within 32.6~57.8 Hz,the frequency band is the transition band,where the dominant role of the FST in the vibration characteristics of the system is weakened; The lower-order bending modes generated by the coupled slab dynamic effect are expressed as rigid body motion modes in the prefabricated slab system; for the FST composed of Ns slabs,the number of additional modes around each order of bending mode frequency of a single slab caused by the coupled slab effect is Ns/2‒1.
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城市轨道交通浮置板轨道纵向联结处存在薄弱环节,轨道设计时对板与板纵向联结的动态效应考虑不足。通过引入等效密度及等效地基系数的方法对钢弹簧浮置板轨道系统板下基础进行合理的模型简化,建立了预制式和现浇式浮置板系统振动特性三维有限元分析模型,充分考虑了钢轨、剪力铰和板下基础对浮置板结构振动特性的影响,研究了浮置板轨道系统模态与谐响应特性,分析了浮置板纵向联结处的动力效应特性。结果表明:浮置板轨道在1~200 Hz低频段的模态振型变化主要表现为四种运动方式:刚体运动、弯曲、弯扭组合和扭转;对于预制板轨道系统,浮置板主导整个系统的振动特性表现的频段在系统模态分析和谐响应分析中表现出一致的规律;对于现浇板轨道系统,当频率为32.6~57.8 Hz时,浮置板对系统振动特性的主导作用弱化,表现为过渡频段;浮置板联板动力效应产生的低阶弯曲模态在预制板系统中表现为刚体运动模态;对于由Ns块板组成的浮置板系统,联板效应引起的单块板每阶弯曲模态频率附近的附加模态数为Ns/2-1。
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, authorsList=杨新文, 孙志昂, 张昭, 张英杰)}, authors=[Author(id=1227675662216000363, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=yangxinwen0603@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1227675662325052273, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, authorId=1227675662216000363, language=EN, stringName=Xin-wen YANG, firstName=Xin-wen, middleName=null, lastName=YANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety, Tongji University, Shanghai 201804, China
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1同济大学轨道交通结构耐久与系统安全上海市重点实验室,上海 201804
2同济大学道路与交通工程教育部重点实验室,上海 201804, bio={"content":"
杨新文(1973—),男,博士,教授。电话:(021)69589880; E-mail: yangxinwen0603@163.com。
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杨新文(1973—),男,博士,教授。电话:(021)69589880; E-mail: yangxinwen0603@163.com。
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1Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety, Tongji University, Shanghai 201804, China
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1同济大学轨道交通结构耐久与系统安全上海市重点实验室,上海 201804
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1Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety, Tongji University, Shanghai 201804, China
2Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1227675663084221331, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, authorId=1227675662882894731, language=CN, stringName=张昭, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1同济大学轨道交通结构耐久与系统安全上海市重点实验室,上海 201804
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1Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety, Tongji University, Shanghai 201804, China
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1同济大学轨道交通结构耐久与系统安全上海市重点实验室,上海 201804
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2同济大学道路与交通工程教育部重点实验室,上海 201804)])])], keywords=[Keyword(id=1227675663545594796, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, orderNo=1, keyword=floating slab track), Keyword(id=1227675663692395440, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, orderNo=2, keyword=urban rail transit), Keyword(id=1227675663801447348, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, orderNo=3, keyword=modal analysis), Keyword(id=1227675663889527735, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, orderNo=4, keyword=finite element method), Keyword(id=1227675663973413821, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, orderNo=5, keyword=connecting slab effect), Keyword(id=1227675664065688514, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, orderNo=1, keyword=浮置板轨道), Keyword(id=1227675664174740427, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, orderNo=2, keyword=城市轨道交通), Keyword(id=1227675664271209426, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, orderNo=3, keyword=模态分析), Keyword(id=1227675664355095511, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, orderNo=4, keyword=有限元法), Keyword(id=1227675664468341724, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, orderNo=5, keyword=联板效应)], refs=[Reference(id=1227675671216976065, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, doi=null, pmid=null, pmcid=null, year=2012, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=吴磊, journalName=null, refType=null, unstructuredReference=吴磊. 地铁车辆-钢弹簧浮置板轨道耦合动态行为的研究[D]. 成都: 西南交通大学,
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2Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China), AuthorCompanyExt(id=1227675662002090853, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, companyId=1227675661989507939, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2同济大学道路与交通工程教育部重点实验室,上海 201804)])], figs=[ArticleFig(id=1227675664673862630, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Fig.1, caption=
Cross-section profile of steel-spring floating slab(Unit: mm), figureFileSmall=b+6cBICiuzroYfXTDXsdzA==, figureFileBig=efKthjq5mw+FJajZUIhJXQ==, tableContent=null), ArticleFig(id=1227675664753554410, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=图1, caption=
钢弹簧浮置板横断面图(单位:mm), figureFileSmall=b+6cBICiuzroYfXTDXsdzA==, figureFileBig=efKthjq5mw+FJajZUIhJXQ==, tableContent=null), ArticleFig(id=1227675664896160752, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Fig.2, caption=
Typical structure of a steel spring vibration isolator inner cylinder[13], figureFileSmall=r2xAbBl4/R932AvVfk0UfQ==, figureFileBig=kRZUJMYFujALKPi5r+tJTw==, tableContent=null), ArticleFig(id=1227675665026184184, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=图2, caption=
某型钢弹簧隔振器内筒的典型结构[13], figureFileSmall=r2xAbBl4/R932AvVfk0UfQ==, figureFileBig=kRZUJMYFujALKPi5r+tJTw==, tableContent=null), ArticleFig(id=1227675665143624702, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Fig.3, caption=
The shear hinge of Floating Slab Track (FST), figureFileSmall=BLDINUiKVu0fHyfj9shgKQ==, figureFileBig=Wls1OJd/WxZ/Wc+Vt0jgWA==, tableContent=null), ArticleFig(id=1227675665235898369, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=图3, caption=
浮置板轨道剪力铰结构, figureFileSmall=BLDINUiKVu0fHyfj9shgKQ==, figureFileBig=Wls1OJd/WxZ/Wc+Vt0jgWA==, tableContent=null), ArticleFig(id=1227675665315590150, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Fig.4, caption=
The finite element model of FST system, figureFileSmall=GO+2LvdZSPFLzgc/8K1TMg==, figureFileBig=0L/QfxHHXULSPzF7ajc1VQ==, tableContent=null), ArticleFig(id=1227675666716487691, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=图4, caption=
浮置板轨道系统有限元模型, figureFileSmall=GO+2LvdZSPFLzgc/8K1TMg==, figureFileBig=0L/QfxHHXULSPzF7ajc1VQ==, tableContent=null), ArticleFig(id=1227675666808762381, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Fig.5, caption=
The simplification model of rail system, figureFileSmall=lvntzcacxaGZp7UhJ08VDg==, figureFileBig=ZMaa71X1kV3/DGyrmEv+2g==, tableContent=null), ArticleFig(id=1227675666884259861, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=图5, caption=
钢轨系统简化模型, figureFileSmall=lvntzcacxaGZp7UhJ08VDg==, figureFileBig=ZMaa71X1kV3/DGyrmEv+2g==, tableContent=null), ArticleFig(id=1227675666968145949, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Fig.6, caption=
Modal frequency error caused by mass deviation, figureFileSmall=244qGLQRVJew5L/sFzw6wg==, figureFileBig=pDj/kPIls2d8UCHiH4eVlw==, tableContent=null), ArticleFig(id=1227675667093975076, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=图6, caption=
质量偏差导致的模态频率误差, figureFileSmall=244qGLQRVJew5L/sFzw6wg==, figureFileBig=pDj/kPIls2d8UCHiH4eVlw==, tableContent=null), ArticleFig(id=1227675667207221292, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Fig.7, caption=
Mode shape frequency distribution of prefabricated steel spring floating slab system, figureFileSmall=k/1EjXoqNbkDWK9+TV5wvA==, figureFileBig=Gpk1A7WgN7KjGV3tfHQbCA==, tableContent=null), ArticleFig(id=1227675667303690293, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=图7, caption=
预制式钢弹簧浮置板系统模态振型频率分布, figureFileSmall=k/1EjXoqNbkDWK9+TV5wvA==, figureFileBig=Gpk1A7WgN7KjGV3tfHQbCA==, tableContent=null), ArticleFig(id=1227675667408547896, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Fig.8, caption=
Mode shape frequency distribution of cast-in-situ steel spring floating slab system, figureFileSmall=S41Az1HligdanSlEo6Z4Dw==, figureFileBig=+zX8SbhKnGnq8ux3fc5lDQ==, tableContent=null), ArticleFig(id=1227675667521794114, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=图8, caption=
现浇式钢弹簧浮置板系统模态振型频率分布, figureFileSmall=S41Az1HligdanSlEo6Z4Dw==, figureFileBig=+zX8SbhKnGnq8ux3fc5lDQ==, tableContent=null), ArticleFig(id=1227675667614068806, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Fig.9, caption=
Receptance of prefabricated floating slab system, figureFileSmall=6HuPYWIUqfPq1BZeKiO81g==, figureFileBig=5r8JUUQtCeT+f51xCsA1nw==, tableContent=null), ArticleFig(id=1227675667710537803, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=图9, caption=
预制式浮置板系统位移导纳, figureFileSmall=6HuPYWIUqfPq1BZeKiO81g==, figureFileBig=5r8JUUQtCeT+f51xCsA1nw==, tableContent=null), ArticleFig(id=1227675667811201106, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Fig.10, caption=
Receptance of cast-in-situ floating slab system, figureFileSmall=J935J2hqCU+mHVL2U48iQg==, figureFileBig=IYDcecceacjop9WUA2ulRg==, tableContent=null), ArticleFig(id=1227675667916058714, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=图10, caption=
现浇式浮置板系统位移导纳, figureFileSmall=J935J2hqCU+mHVL2U48iQg==, figureFileBig=IYDcecceacjop9WUA2ulRg==, tableContent=null), ArticleFig(id=1227675668008333405, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Fig.11, caption=
Comparison of receptance of cast-in-situ single slab and three-linked slab system, figureFileSmall=EOrIZZsPWMDaIyBz0O7z/Q==, figureFileBig=8plsN2ZSmPxZh583dvzE1Q==, tableContent=null), ArticleFig(id=1227675668117385316, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=图11, caption=
现浇板单板与三联板系统位移导纳对比, figureFileSmall=EOrIZZsPWMDaIyBz0O7z/Q==, figureFileBig=8plsN2ZSmPxZh583dvzE1Q==, tableContent=null), ArticleFig(id=1227675668184494185, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Fig.12, caption=
Mode shape corresponding to peak frequency of system receptance(cast-in-situ floating slab system), figureFileSmall=qm24ds6XgpzGkuikLJ4x9Q==, figureFileBig=WBexhXEaQOMHB0ZTDBNfKA==, tableContent=null), ArticleFig(id=1227675668259991663, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=图12, caption=
系统位移导纳峰值频率对应模态振型(以现浇式浮置板系统为例), figureFileSmall=qm24ds6XgpzGkuikLJ4x9Q==, figureFileBig=WBexhXEaQOMHB0ZTDBNfKA==, tableContent=null), ArticleFig(id=1227675668348072053, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Fig.13, caption=
Effect of connecting slab of prefabricated floating slab track, figureFileSmall=l2h3YZDA3UbeJhBrZeNmbQ==, figureFileBig=3gHTcIjHqHaXcm9I4API+w==, tableContent=null), ArticleFig(id=1227675668431958137, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=图13, caption=
预制式浮置板的联板效应, figureFileSmall=l2h3YZDA3UbeJhBrZeNmbQ==, figureFileBig=3gHTcIjHqHaXcm9I4API+w==, tableContent=null), ArticleFig(id=1227675668511649918, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Fig.14, caption=
Ideal mode shape of prefabricated slab system considering the connecting slab effect, figureFileSmall=N7cBhCyeW0gkKLet2xRm/Q==, figureFileBig=SJdJVwGJV4JGw6OLvO9YWQ==, tableContent=null), ArticleFig(id=1227675668612313218, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=图14, caption=
考虑联板效应的预制板系统理想模态振型, figureFileSmall=N7cBhCyeW0gkKLet2xRm/Q==, figureFileBig=SJdJVwGJV4JGw6OLvO9YWQ==, tableContent=null), ArticleFig(id=1227675668717170822, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Fig.15, caption=
The receptance of prefabricated and cast-in-situ floating slab system (considering 1/3 octave), figureFileSmall=MWL9MuiUyz1O722811Df0A==, figureFileBig=fiBmrSwgrj4qKd4nLMkuZg==, tableContent=null), ArticleFig(id=1227675668796862603, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=图15, caption=
预制板与现浇板系统位移导纳(考虑1/3倍频程), figureFileSmall=MWL9MuiUyz1O722811Df0A==, figureFileBig=fiBmrSwgrj4qKd4nLMkuZg==, tableContent=null), ArticleFig(id=1227675668889137295, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Tab.1, caption=
The parameters of rail and fastener
, figureFileSmall=null, figureFileBig=null, tableContent=
| 结构 | 单元类型 | 参数 | 取值 |
|---|
| 预制板 | 现浇板 |
|---|
| CHN60 | Solid45 | 弹性模量/Pa | 2.059×1011 |
| 泊松比 | 0.3 |
| 密度/(kg⋅m-3) | 7850 |
| 损耗因子 | 0.01 |
| DTⅥ-2型扣件 | Combin14 | 垂向刚度/(N⋅m-1) | 4×107 |
| 垂向阻尼系数/(N⋅s⋅m-1) | 9525.8 | 9746.7 |
| 横向刚度/(N⋅m-1) | 2×107 |
| 横向阻尼系数/(N⋅s⋅m-1) | 9525.8 | 9746.7 |
| 纵向刚度/(N⋅m-1) | 2×107 |
| 纵向阻尼系数/(N⋅s⋅m-1) | 9525.8 | 9746.7 |
), ArticleFig(id=1227675668973023380, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=表1, caption=
钢轨和扣件参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 结构 | 单元类型 | 参数 | 取值 |
|---|
| 预制板 | 现浇板 |
|---|
| CHN60 | Solid45 | 弹性模量/Pa | 2.059×1011 |
| 泊松比 | 0.3 |
| 密度/(kg⋅m-3) | 7850 |
| 损耗因子 | 0.01 |
| DTⅥ-2型扣件 | Combin14 | 垂向刚度/(N⋅m-1) | 4×107 |
| 垂向阻尼系数/(N⋅s⋅m-1) | 9525.8 | 9746.7 |
| 横向刚度/(N⋅m-1) | 2×107 |
| 横向阻尼系数/(N⋅s⋅m-1) | 9525.8 | 9746.7 |
| 纵向刚度/(N⋅m-1) | 2×107 |
| 纵向阻尼系数/(N⋅s⋅m-1) | 9525.8 | 9746.7 |
), ArticleFig(id=1227675669035937944, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Tab.2, caption=
Comparison of floating slab mass calculation results
, figureFileSmall=null, figureFileBig=null, tableContent=
| 浮置板类型 | 模型质量/kg | 实际质量/kg | 偏差/% |
|---|
| 预制板 | 16015 | 14635 | 9.42 |
| 现浇板 | 66928 | 61252 | 9.27 |
), ArticleFig(id=1227675669140795551, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=表2, caption=
浮置板质量计算结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 浮置板类型 | 模型质量/kg | 实际质量/kg | 偏差/% |
|---|
| 预制板 | 16015 | 14635 | 9.42 |
| 现浇板 | 66928 | 61252 | 9.27 |
), ArticleFig(id=1227675669241458853, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Tab.3, caption=
Floating slab equivalent density
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/(kg⋅m-3) |
|---|
| 钢筋混凝土 | 2500 |
| 预制板 | 2284.7 |
| 现浇板 | 2287.9 |
), ArticleFig(id=1227675669325344937, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=表3, caption=
浮置板等效密度
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度/(kg⋅m-3) |
|---|
| 钢筋混凝土 | 2500 |
| 预制板 | 2284.7 |
| 现浇板 | 2287.9 |
), ArticleFig(id=1227675669430202540, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=EN, label=Tab.4, caption=
The model parameters of floating slab system and tunnels
, figureFileSmall=null, figureFileBig=null, tableContent=
| 结构 | 单元类型 | 参数 | 取值 |
|---|
| 预制板 | 现浇板 |
|---|
| 浮置板 | Solid45 | 尺寸(宽×厚)/(m⋅m) | 2.9×0.37 |
| 弹性模量/Pa | 3.45×1010 | 3.25×1010 |
| 泊松比 | 0.2 |
| 密度/(kg⋅m-3) | 2284.7 | 2287.9 |
| 损耗因子 | 0.05 |
| 钢弹簧隔振器 | Combin14 | 垂向刚度/(kN⋅mm-1) | 6 |
| 垂向阻尼系数/(N⋅s⋅m-1) | 19200.8 | 19218.2 |
| 横向刚度/(kN⋅mm-1) | 10 |
| 横向阻尼系数/(N⋅s⋅m-1) | 19200.8 | 19218.2 |
| 纵向刚度/(kN⋅mm-1) | 10 |
| 纵向阻尼系数/(N⋅s⋅m-1) | 19200.8 | 19218.2 |
| 剪力铰 | Combin14 | 剪切刚度/(kN⋅mm-1) | 1159 |
| 仰拱 | Solid45 | 尺寸(宽×厚)/(m⋅m) | 2.535×0.2 |
| 弹性模量/Pa | 3.25×1010 |
| 泊松比 | 0.2 |
| 隧道等效地基弹簧 | Combin14 | 等效地基系数/(MPa⋅m-1) | 1200 |
), ArticleFig(id=1227675669505700017, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262393344609, language=CN, label=表4, caption=
浮置板系统及隧道基础的模型参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 结构 | 单元类型 | 参数 | 取值 |
|---|
| 预制板 | 现浇板 |
|---|
| 浮置板 | Solid45 | 尺寸(宽×厚)/(m⋅m) | 2.9×0.37 |
| 弹性模量/Pa | 3.45×1010 | 3.25×1010 |
| 泊松比 | 0.2 |
| 密度/(kg⋅m-3) | 2284.7 | 2287.9 |
| 损耗因子 | 0.05 |
| 钢弹簧隔振器 | Combin14 | 垂向刚度/(kN⋅mm-1) | 6 |
| 垂向阻尼系数/(N⋅s⋅m-1) | 19200.8 | 19218.2 |
| 横向刚度/(kN⋅mm-1) | 10 |
| 横向阻尼系数/(N⋅s⋅m-1) | 19200.8 | 19218.2 |
| 纵向刚度/(kN⋅mm-1) | 10 |
| 纵向阻尼系数/(N⋅s⋅m-1) | 19200.8 | 19218.2 |
| 剪力铰 | Combin14 | 剪切刚度/(kN⋅mm-1) | 1159 |
| 仰拱 | Solid45 | 尺寸(宽×厚)/(m⋅m) | 2.535×0.2 |
| 弹性模量/Pa | 3.25×1010 |
| 泊松比 | 0.2 |
| 隧道等效地基弹簧 | Combin14 | 等效地基系数/(MPa⋅m-1) | 1200 |
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