Article(id=1268884413225014118, tenantId=1146029695717560320, journalId=1268266580820377661, issueId=1268884383122494171, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1001-4632.2026.02.06, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1739808000000, receivedDateStr=2025-02-18, revisedDate=1767542400000, revisedDateStr=2026-01-05, acceptedDate=null, acceptedDateStr=null, onlineDate=1780455218845, onlineDateStr=2026-06-03, pubDate=1772294400000, pubDateStr=2026-03-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1780455218845, onlineIssueDateStr=2026-06-03, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1780455218845, creator=13701087609, updateTime=1780455218845, updator=13701087609, issue=Issue{id=1268884383122494171, tenantId=1146029695717560320, journalId=1268266580820377661, year='2026', volume='47', issue='2', pageStart='1', pageEnd='255', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1780455211667, creator=13701087609, updateTime=1780455310713, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1268884798719300557, tenantId=1146029695717560320, journalId=1268266580820377661, issueId=1268884383122494171, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1268884798723494862, tenantId=1146029695717560320, journalId=1268266580820377661, issueId=1268884383122494171, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=61, endPage=75, ext={EN=ArticleExt(id=1268884413434729320, articleId=1268884413225014118, tenantId=1146029695717560320, journalId=1268266580820377661, language=EN, title=Technical Scheme and Train Operation Safety of Deployable Railway Emergency Repair Girder with Telescopic Diagonal Web Members, columnId=null, journalTitle=China Railway Science, columnName=null, runingTitle=null, highlight=null, articleAbstract=
To meet the requirements of modern railway bridge emergency repair, a technical scheme for a deployable medium-span emergency repair girder based on telescopic diagonal web members is proposed. The girder utilizes deployable frame units as its basic components, enabling folding and deployment through the extension and retraction of the diagonal web members. This design resolves the technical challenge of balancing assembly efficiency with storage and transportation space in existing repair girders, while also meeting the emergency repair demands of both conventional-speed and high-speed railway bridges. Finite element analysis models and multi-body dynamics models are established to conduct static analysis and vehicle-bridge coupled dynamic response analysis on the deployable railway emergency repair girder. The results indicate that the stress levels and displacements of the deployable repair girder meet the limit requirements of the “Code for Design on Railway Bridge and Culvert”. The member stresses are highest under the loading of mixed passenger and freight railway traffic. The arrangement of the diagonal web members significantly influences the ultimate bearing capacity of the deployable girder, with the inverted V-shaped configuration yielding a higher ultimate bearing capacity. Among the three truss configurations for the 32 m span, the heavy truss emergency repair girder exhibits superior dynamic response indices. The wheel load reduction rate is identified as the key factor controlling train speed, and the speed limit for high-speed trains crossing the 32 m span deployable railway emergency repair girder can be controlled at 120 km · h-¹.
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为适应现代铁路桥梁抢修的需求,提出一种基于可伸缩斜腹杆的可展式铁路中等跨度抢修梁技术方案。该抢修梁以可展构架单元为基本单元,可通过斜腹杆的伸缩实现折叠与展开,解决既有抢修梁拼组效率和储运空间不能兼顾的技术问题,同时适应普铁、高铁桥梁的抢修要求。建立有限元分析模型和多体动力学模型,对可展铁路抢修梁进行静力学分析和车桥耦合动力响应分析。结果表明:可展铁路抢修梁的应力水平、位移能满足《铁路桥涵设计规范》限值要求,客货共线铁路列车(ZKH)荷载作用下抢修梁各杆件应力最大;斜腹杆布置方式对可展铁路抢修梁的极限承载力具有显著的影响,斜腹杆倒“八”字形布置时极限承载力较高;32 m跨3种桁架配置类型中,重型桁架抢修梁各项动力响应指标较优;轮重减载率是控制列车运行速度的关键因素,高铁列车通过32 m跨度可展铁路抢修梁的限速可控制在120 km · h-1。
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1, 2, 3, address=
1.State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, ShijiazhuangHebei050043, China
2.School of Safety Engineering and Emergency Management, Shijiazhuang Tiedao University, ShijiazhuangHebei050043, China
3.Hebei Engineering Innovation Center for Traffic Emergency and Guarantee, Shijiazhuang Tiedao University, ShijiazhuangHebei050043, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1268884429742183347, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, authorId=1268884429335335853, language=CN, stringName=徐光兴, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, address=
1.石家庄铁道大学 省部共建交通工程结构力学行为与系统安全国家重点实验室,河北石家庄050043
2.石家庄铁道大学 安全工程与应急管理学院,河北石家庄050043
3.石家庄铁道大学 河北省交通应急保障技术创新中心,河北石家庄050043, bio={"content":"
徐光兴(1974—),男,江西上饶人,教授,博士。E-mail:xugx@stdu.edu.cn
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徐光兴(1974—),男,江西上饶人,教授,博士。E-mail:xugx@stdu.edu.cn
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1, 2, address=
1.State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, ShijiazhuangHebei050043, China
2.School of Safety Engineering and Emergency Management, Shijiazhuang Tiedao University, ShijiazhuangHebei050043, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1268884430417466297, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, authorId=1268884429998035893, language=CN, stringName=刘志轩, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.石家庄铁道大学 省部共建交通工程结构力学行为与系统安全国家重点实验室,河北石家庄050043
2.石家庄铁道大学 安全工程与应急管理学院,河北石家庄050043, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1268884427141714845, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, xref=1., ext=[AuthorCompanyExt(id=1268884427150103454, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, companyId=1268884427141714845, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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4, address=
4.School of Civil Engineering, Shijiazhuang Tiedao University, ShijiazhuangHebei050043, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1268884431025640382, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, authorId=1268884430560072635, language=CN, stringName=李朝红, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
4, address=
4.石家庄铁道大学 土木工程学院,河北石家庄050043, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1268884429184340904, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, xref=4., ext=[AuthorCompanyExt(id=1268884429192729513, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, companyId=1268884429184340904, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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4.石家庄铁道大学 土木工程学院,河北石家庄050043)])])], keywords=[Keyword(id=1268884431336018879, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, orderNo=1, keyword=Railway emergency repair girder), Keyword(id=1268884431478625216, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, orderNo=2, keyword=Deployable structure), Keyword(id=1268884431675757505, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, orderNo=3, keyword=Static analysis), Keyword(id=1268884431801586626, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, orderNo=4, keyword=Ultimate bearing capacity), Keyword(id=1268884432095187907, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, orderNo=5, keyword=Vehicle-bridge coupling), Keyword(id=1268884433596748740, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, orderNo=6, keyword=Dynamic response), Keyword(id=1268884433785492421, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, orderNo=1, keyword=铁路抢修梁), Keyword(id=1268884434183951302, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, orderNo=2, keyword=可展结构), Keyword(id=1268884434288808903, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, orderNo=3, keyword=静力分析), Keyword(id=1268884434678879176, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, orderNo=4, keyword=极限承载力), Keyword(id=1268884435043783625, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, orderNo=5, keyword=车桥耦合), Keyword(id=1268884435115086794, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, orderNo=6, keyword=动力响应)], refs=[Reference(id=1268884445017838591, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, doi=null, pmid=null, pmcid=null, year=2010, volume=null, issue=10, pageStart=71, pageEnd=73, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=韩金秀, 郭薇薇, 夏禾, journalName=铁道标准设计, refType=null, unstructuredReference=韩金秀,郭薇薇,夏禾,
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伸缩斜腹杆式可展铁路抢修梁, figureFileSmall=7WsIP4gTEa4RpJwtRYtDPQ==, figureFileBig=TSv869WvTjpef2Ou+RADfA==, tableContent=null), ArticleFig(id=1268884438088848333, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=sqaqYazhJU7+Yl06RNc6xg==, figureFileBig=jjYzHtHCzUyS08csrpo+7A==, tableContent=null), ArticleFig(id=1268884438378255310, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图2, caption=
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可展构架单元的拼组连接, figureFileSmall=KrRzxCfeLukf2QO0nCSWrg==, figureFileBig=Nj4YpHcvmThftugfErjkCw==, tableContent=null), ArticleFig(id=1268884438927709137, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=nf4/8K3K6STWSmQ04LX6dg==, figureFileBig=8/lMWQvLhmbejzUIevwrRg==, tableContent=null), ArticleFig(id=1268884439208727506, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图4, caption=
可展构架单元展开过程, figureFileSmall=nf4/8K3K6STWSmQ04LX6dg==, figureFileBig=8/lMWQvLhmbejzUIevwrRg==, tableContent=null), ArticleFig(id=1268884439309390803, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=riEtdjpDh0QrI+1TdsKr6w==, figureFileBig=nr+AXVYM5GT/2NCJMaVymw==, tableContent=null), ArticleFig(id=1268884439628157908, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图5, caption=
单片桁架折叠状态及展开状态, figureFileSmall=riEtdjpDh0QrI+1TdsKr6w==, figureFileBig=nr+AXVYM5GT/2NCJMaVymw==, tableContent=null), ArticleFig(id=1268884439703655381, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=q6AyDpZQzwGHbeHDhQ6wow==, figureFileBig=fvkWwimw7T4xZSlZvB3dsw==, tableContent=null), ArticleFig(id=1268884439787541462, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图6, caption=
杆件截面, figureFileSmall=q6AyDpZQzwGHbeHDhQ6wow==, figureFileBig=fvkWwimw7T4xZSlZvB3dsw==, tableContent=null), ArticleFig(id=1268884440051782615, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=qzCoANBXt0fao2A1WLZRMw==, figureFileBig=9D/gMGFSbS2zQouPSJTRaw==, tableContent=null), ArticleFig(id=1268884440127280088, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图7, caption=
不同跨度抢修梁有限元模型, figureFileSmall=qzCoANBXt0fao2A1WLZRMw==, figureFileBig=9D/gMGFSbS2zQouPSJTRaw==, tableContent=null), ArticleFig(id=1268884440190194649, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=YO8WUa+tQdQxalvTtgqBFA==, figureFileBig=WL68C8+4MqLM/vyb8itYFg==, tableContent=null), ArticleFig(id=1268884440257303514, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图8, caption=
铁路列车荷载图式, figureFileSmall=YO8WUa+tQdQxalvTtgqBFA==, figureFileBig=WL68C8+4MqLM/vyb8itYFg==, tableContent=null), ArticleFig(id=1268884440521544667, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=F4RWXUCFC9t9rEve+o7EDg==, figureFileBig=q9SmmFNXYzkAbHDm3kYNxA==, tableContent=null), ArticleFig(id=1268884440605430748, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图9, caption=
32 m跨度抢修梁各杆件应力, figureFileSmall=F4RWXUCFC9t9rEve+o7EDg==, figureFileBig=q9SmmFNXYzkAbHDm3kYNxA==, tableContent=null), ArticleFig(id=1268884440697705437, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=elF4cXrlyrUcQLo39e0/hA==, figureFileBig=CzN7ugj8SbvAH8QpgabnXA==, tableContent=null), ArticleFig(id=1268884440773202910, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图10, caption=
24和40 m跨度抢修梁各杆件应力, figureFileSmall=elF4cXrlyrUcQLo39e0/hA==, figureFileBig=CzN7ugj8SbvAH8QpgabnXA==, tableContent=null), ArticleFig(id=1268884440886449119, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=46dpJ6aEHPLuyOM+v10nRA==, figureFileBig=un0ovdnybVCs9sDSEnTgAQ==, tableContent=null), ArticleFig(id=1268884442555782112, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图11, caption=
不同跨度抢修梁位移, figureFileSmall=46dpJ6aEHPLuyOM+v10nRA==, figureFileBig=un0ovdnybVCs9sDSEnTgAQ==, tableContent=null), ArticleFig(id=1268884442648056801, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=ybfnn12/OU4ivA4c7muyVg==, figureFileBig=bYlrfzWOfgFPbk2uSTZANQ==, tableContent=null), ArticleFig(id=1268884442727748578, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图12, caption=
极限荷载下可展抢修梁的等效应力云图, figureFileSmall=ybfnn12/OU4ivA4c7muyVg==, figureFileBig=bYlrfzWOfgFPbk2uSTZANQ==, tableContent=null), ArticleFig(id=1268884442790663139, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=NAeW5oiRCY1GSaiAurLktw==, figureFileBig=zTc3YNIdPURweZTE7bdNrA==, tableContent=null), ArticleFig(id=1268884442882937828, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图13, caption=
极限荷载下斜腹杆的等效应力云图, figureFileSmall=NAeW5oiRCY1GSaiAurLktw==, figureFileBig=zTc3YNIdPURweZTE7bdNrA==, tableContent=null), ArticleFig(id=1268884442971018213, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=e0ikIWi6fo3dP2iSaZxpdA==, figureFileBig=A3rJB9KLBFdfs6MYUIM7Eg==, tableContent=null), ArticleFig(id=1268884443029738470, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图14, caption=
简化的力学模型示意图, figureFileSmall=e0ikIWi6fo3dP2iSaZxpdA==, figureFileBig=A3rJB9KLBFdfs6MYUIM7Eg==, tableContent=null), ArticleFig(id=1268884443092653031, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=nsUIzrZaF+w+eyd78kjsHA==, figureFileBig=2f57KTjCBADLkP5FkFOFdw==, tableContent=null), ArticleFig(id=1268884443180733416, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图15, caption=
车桥耦合模型, figureFileSmall=nsUIzrZaF+w+eyd78kjsHA==, figureFileBig=2f57KTjCBADLkP5FkFOFdw==, tableContent=null), ArticleFig(id=1268884443252036585, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=HK6/xMR3JoOROEw3Qvt10Q==, figureFileBig=BtIVosm5zoHea8ld5rymoA==, tableContent=null), ArticleFig(id=1268884443327534058, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图16, caption=
美国5级轨道不平顺, figureFileSmall=HK6/xMR3JoOROEw3Qvt10Q==, figureFileBig=BtIVosm5zoHea8ld5rymoA==, tableContent=null), ArticleFig(id=1268884443411420139, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=DGG5gMF96XQP7lx79g01Og==, figureFileBig=Y7YMkHm85GzzApUGW7uJyw==, tableContent=null), ArticleFig(id=1268884443491111916, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图17, caption=
抢修梁跨中动力响应最大值, figureFileSmall=DGG5gMF96XQP7lx79g01Og==, figureFileBig=Y7YMkHm85GzzApUGW7uJyw==, tableContent=null), ArticleFig(id=1268884443554026477, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=eEq6I7XtbjmIdSgx2EKZIA==, figureFileBig=E/00YIrFKjaUIQ2dobU/vA==, tableContent=null), ArticleFig(id=1268884443625329646, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=CN, label=图18, caption=
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车辆及抢修梁加速度频域曲线, figureFileSmall=JnGxr49TZjkGlW2aHfjpMg==, figureFileBig=9nNfyNJKQDJA/lGO9VeilA==, tableContent=null), ArticleFig(id=1268884444178977781, tenantId=1146029695717560320, journalId=1268266580820377661, articleId=1268884413225014118, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 杆件类型 | h | h1 | b | b1 | t | t1 |
|---|
| 轻型弦杆 | 370 | 170 | 600 | 228 | 12 | 12 |
| 重型弦杆 | 370 | 170 | 600 | 210 | 30 | 30 |
| 竖腹杆 | 250 | 150 | | | 12 | 12 |
| 斜腹杆 | 250 | 210 | | | 12 | 12 |
| 平纵联、横联 | 100 | 100 | | | 12 | 12 |
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杆件截面尺寸
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| 杆件类型 | h | h1 | b | b1 | t | t1 |
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| 轻型弦杆 | 370 | 170 | 600 | 228 | 12 | 12 |
| 重型弦杆 | 370 | 170 | 600 | 210 | 30 | 30 |
| 竖腹杆 | 250 | 150 | | | 12 | 12 |
| 斜腹杆 | 250 | 210 | | | 12 | 12 |
| 平纵联、横联 | 100 | 100 | | | 12 | 12 |
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| 跨度/m | 可展构架单元数量/个 | 桁架数量/片 | 桁架类型 |
|---|
| 24 | 12 | 4 | 轻型 |
| 32 | 24 | 6 | 轻型 |
| 32 | 16 | 4 | 重型 |
| 32 | 16 | 4 | 混合型 |
| 40 | 30 | 6 | 重型 |
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不同跨度有限元模型参数
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| 跨度/m | 可展构架单元数量/个 | 桁架数量/片 | 桁架类型 |
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| 24 | 12 | 4 | 轻型 |
| 32 | 24 | 6 | 轻型 |
| 32 | 16 | 4 | 重型 |
| 32 | 16 | 4 | 混合型 |
| 40 | 30 | 6 | 重型 |
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| 钢材种类 | 轴向应力/MPa | 弯曲应力/MPa | 剪应力/MPa |
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| Q355 | 240 | 250 | 145 |
| 42CrMo | 558~651 | 558 | 336 |
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材料参数
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| 钢材种类 | 轴向应力/MPa | 弯曲应力/MPa | 剪应力/MPa |
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| Q355 | 240 | 250 | 145 |
| 42CrMo | 558~651 | 558 | 336 |
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| 阶数 | 轻型桁架抢修梁 | 重型桁架抢修梁 | 混合型桁架抢修梁 |
|---|
| 1 | 6.387 | 6.493 | 6.011 |
| 2 | 6.472 | 6.860 | 6.521 |
| 3 | 11.429 | 9.727 | 9.246 |
| 4 | 14.228 | 15.273 | 15.222 |
| 5 | 18.563 | 17.894 | 17.777 |
| 6 | 22.441 | 20.499 | 19.237 |
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| 阶数 | 轻型桁架抢修梁 | 重型桁架抢修梁 | 混合型桁架抢修梁 |
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| 1 | 6.387 | 6.493 | 6.011 |
| 2 | 6.472 | 6.860 | 6.521 |
| 3 | 11.429 | 9.727 | 9.246 |
| 4 | 14.228 | 15.273 | 15.222 |
| 5 | 18.563 | 17.894 | 17.777 |
| 6 | 22.441 | 20.499 | 19.237 |
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| 参数名称 | 参数取值 |
|---|
| 车辆定距(s) | 17.5 m |
| 固定轴距(d) | 2.5 m |
| 车体质量 | 3.4×104 kg |
| 转向架质量 | 7.3×103 kg |
| 轮对质量 | 1.9×103 kg |
| 车轮滚动圆直径 | 0.86 m |
| 轮对侧滚转动惯量(Jwx) | 6.85×102 kg · m2 |
| 轮对摇头转动惯量(Jwz) | 6.85×102 kg · m2 |
| 构架侧滚转动惯量(Jbx) | 1.847×103 kg · m2 |
| 构架点头转动惯量(Jby) | 1.249×103 kg · m2 |
| 构架摇头转动惯量(Jbz) | 2.28×103 kg · m2 |
| 车体侧滚转动惯量(Jvx) | 1.102×105 kg · m2 |
| 车体点头转动惯量(Jvy) | 1.666×106 kg · m2 |
| 车体摇头转动惯量(Jvz) | 1.572 2×106 kg · m2 |
| 一系悬挂纵向刚度(K1x) | 1.471×104 kN · m-1 |
| 一系悬挂横向刚度(K1y) | 6.5×103 kN · m-1 |
| 一系悬挂垂向刚度(K1z) | 1.735×104 kN · m-1 |
| 一系悬挂纵向阻尼(C1x) | 0 kN · s · m-1 |
| 一系悬挂横向阻尼(C1y) | 0 kN · s · m-1 |
| 一系悬挂垂向阻尼(C1z) | 19.6 kN · s · m-1 |
| 二系悬挂纵向刚度(K2x) | 4.58×103 kN · m-1 |
| 二系悬挂横向刚度(K2y) | 8.74×103 kN · m-1 |
| 二系悬挂垂向刚度(K2z) | 2.4×102 kN · m-1 |
| 二系悬挂纵向阻尼(C2x) | 2.45×103 kN · s · m-1 |
| 二系悬挂横向阻尼(C2y) | 59 kN · s · m-1 |
| 二系悬挂垂向阻尼(C2z) | 10 kN · s · m-1 |
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CRH380A列车参数
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| 参数名称 | 参数取值 |
|---|
| 车辆定距(s) | 17.5 m |
| 固定轴距(d) | 2.5 m |
| 车体质量 | 3.4×104 kg |
| 转向架质量 | 7.3×103 kg |
| 轮对质量 | 1.9×103 kg |
| 车轮滚动圆直径 | 0.86 m |
| 轮对侧滚转动惯量(Jwx) | 6.85×102 kg · m2 |
| 轮对摇头转动惯量(Jwz) | 6.85×102 kg · m2 |
| 构架侧滚转动惯量(Jbx) | 1.847×103 kg · m2 |
| 构架点头转动惯量(Jby) | 1.249×103 kg · m2 |
| 构架摇头转动惯量(Jbz) | 2.28×103 kg · m2 |
| 车体侧滚转动惯量(Jvx) | 1.102×105 kg · m2 |
| 车体点头转动惯量(Jvy) | 1.666×106 kg · m2 |
| 车体摇头转动惯量(Jvz) | 1.572 2×106 kg · m2 |
| 一系悬挂纵向刚度(K1x) | 1.471×104 kN · m-1 |
| 一系悬挂横向刚度(K1y) | 6.5×103 kN · m-1 |
| 一系悬挂垂向刚度(K1z) | 1.735×104 kN · m-1 |
| 一系悬挂纵向阻尼(C1x) | 0 kN · s · m-1 |
| 一系悬挂横向阻尼(C1y) | 0 kN · s · m-1 |
| 一系悬挂垂向阻尼(C1z) | 19.6 kN · s · m-1 |
| 二系悬挂纵向刚度(K2x) | 4.58×103 kN · m-1 |
| 二系悬挂横向刚度(K2y) | 8.74×103 kN · m-1 |
| 二系悬挂垂向刚度(K2z) | 2.4×102 kN · m-1 |
| 二系悬挂纵向阻尼(C2x) | 2.45×103 kN · s · m-1 |
| 二系悬挂横向阻尼(C2y) | 59 kN · s · m-1 |
| 二系悬挂垂向阻尼(C2z) | 10 kN · s · m-1 |
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