Article(id=1308453911577251926, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1308453882472984927, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1672-6073.2026.03.017, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1757433600000, receivedDateStr=2025-09-10, revisedDate=1766505600000, revisedDateStr=2025-12-24, acceptedDate=null, acceptedDateStr=null, onlineDate=1789889322418, onlineDateStr=2026-09-20, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789889322418, onlineIssueDateStr=2026-09-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789889322418, creator=13701087609, updateTime=1789889322418, updator=13701087609, issue=Issue{id=1308453882472984927, tenantId=1146029695717560320, journalId=1146123302524792850, year='2026', volume='39', issue='3', pageStart='1', pageEnd='150', issueExtLink='null', onlineDate='null', pubDate='1781020800000', pubDateStr='2026-06-10', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1789889315479, creator='13701087609', updateTime=1789889814158, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1308455974147224139, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1308453882472984927, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1308455974151418444, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1308453882472984927, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=134, endPage=140, ext={EN=ArticleExt(id=1308453911803744343, articleId=1308453911577251926, tenantId=1146029695717560320, journalId=1146123302524792850, language=EN, title=Experimental Study on the Vibration Isolation and Fatigue Performance of the Floating Slab Isolation Systems for Existing Subway Lines, columnId=1152669336394183038, journalTitle=Urban Rapid Rail Transit, columnName=Civil Engineering Technology, runingTitle=null, highlight=null, articleAbstract=

To investigate the vibration isolation and fatigue performance of steel spring isolators in floating slab systems for existing subway lines, this study evaluates their long-term service capability through field tests and fatigue tests, using the floating slab system of Chongqing Metro Line 1—which has been in operation for eight years—as a case study. First, train-induced vibration tests were conducted to measure and analyze the natural frequency and damping ratio of the current floating slab system. Next, vibration reduction performance tests were performed on both the floating slab track and conventional track to compare their vibration reduction effects. Finally, a steel spring isolator was removed for fatigue testing to investigate how the isolator stiffness, damping ratio, and height changed under fatigue loading. Results indicate that the natural frequency and damping ratio of the current floating slab system remain within reasonable ranges. Compared to conventional tracks, the floating slab track absorbs substantial vibration energy by increasing its own vertical acceleration, thereby reducing vibration interference from subway operations to the environment and meeting vibration reduction requirements. During 3 million fatigue cycles, changes in the isolator stiffness, damping ratio, and height remained below specification limits. No cracks were observed in the steel springs or sleeve welds, and no leakage occurred in the damping material. A comprehensive evaluation indicates that the mechanical and vibration damping performance of this floating slab system continues to meet design requirements, suggesting that the system can remain in service and has a long service life.

, authors=Ruiji WANG¹, Huali YU¹, Zhiyong TIAN^{1, 2}, Chaohua LI¹, Wenbo HUANG¹, Yujie LIAO¹, authorsList=Ruiji WANG, Huali YU, Zhiyong TIAN, Chaohua LI, Wenbo HUANG, Yujie LIAO, authorCompany=null, correspAuthors=Huali YU, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1308453912286089304, articleId=1308453911577251926, tenantId=1146029695717560320, journalId=1146123302524792850, language=CN, title=既有线浮置板隔振系统减振及疲劳性能试验研究, columnId=1152669336603898239, journalTitle=都市快轨交通, columnName=土建技术, runingTitle=null, highlight=null, articleAbstract=

为研究既有线浮置板系统中钢弹簧隔振器的减振与疲劳性能，以运营8年后的重庆轨道交通1号线浮置板系统为背景，通过现场试验及疲劳试验，评价其持续服役能力。首先，通过列车激励振动试验，测试分析当前浮置板系统的自振频率、阻尼比；然后，对浮置板轨道及普通轨道进行减振性能试验，对比浮置板轨道及普通轨道的减振效果；最后，取出钢弹簧隔振器开展疲劳试验，研究隔振器刚度、阻尼比、高度随疲劳加载的变化规律。结果表明：当前浮置板系统的自振频率和阻尼比均处于合理范围；与普通轨道相比，浮置板轨道通过提高自身的垂向加速度，吸收大量的振动能量，降低地铁行车对环境的振动干扰，减振性能满足要求；300万次疲劳加载中，隔振器的刚度、阻尼比、高度的变化量均低于规范限值，钢弹簧和套筒焊缝未见裂纹，阻尼材料未出现溢出渗漏现象。综合评价，该浮置板系统减振和疲劳性能在运营8年后依然满足设计要求，可继续服役并具备较长的使用寿命。

, authors=王瑞吉¹, 余华丽¹, 田志勇^{1, 2}, 李超华¹, 黄文波¹, 廖玉杰¹, authorsList=王瑞吉, 余华丽, 田志勇, 李超华, 黄文波, 廖玉杰, authorCompany=null, correspAuthors=余华丽, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=Y08Uo6m2230z2BP7FUbZNw==, magXml=j7OZ6W2bV1+772TN4eGDFQ==, pdfUrl=null, pdf=4j1DKX27+NPCUMBHlOJ0BA==, pdfFileSize=3431004, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=AvZn44W8lbpEwJ5fxLtYeQ==, mapNumber=null, fund=null)}, authors=[Author(id=1308453914219663456, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1308453911577251926, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=stduwrj@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1308453914320326754, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1308453911577251926, authorId=1308453914219663456, language=EN, stringName=Ruiji WANG, firstName=Ruiji, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.Sichuan Jiaoda Engineering Detection & Consulting Co., Ltd., Chengdu 611730, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1308453914400018531, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1308453911577251926, authorId=1308453914219663456, language=CN, stringName=王瑞吉, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1．四川交大工程检测咨询有限公司，成都 611730, bio={"content":"

王瑞吉，男，硕士，高级工程师，从事多尺度结构行为模拟与智能检测技术研究，stduwrj@163.com

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王瑞吉，男，硕士，高级工程师，从事多尺度结构行为模拟与智能检测技术研究，stduwrj@163.com

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