Article(id=1242140504691909039, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242140485234537368, articleNumber=null, orderNo=14, doi=10.3981/j.issn.1000-7857.2023.11.012, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1664208000000, receivedDateStr=2022-09-27, revisedDate=1668614400000, revisedDateStr=2022-11-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1688004571530, onlineDateStr=2023-06-29, pubDate=1686585600000, pubDateStr=2023-06-13, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1688004571530, onlineIssueDateStr=2023-06-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774078974170, creator=sys-migrate, updateTime=1774078974170, updator=sys-migrate, issue=Issue{id=1242140485234537368, tenantId=1146029695717560320, journalId=1146031591421210625, year='2023', volume='41', issue='11', pageStart='1', pageEnd='124', issueExtLink='null', onlineDate='null', pubDate='1686585600000', pubDateStr='2023-06-13', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774078969531, creator='sys-migrate', updateTime=1774078969531, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=113, endPage=124, ext={EN=ArticleExt(id=1242140508521312287, articleId=1242140504691909039, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Cause analysis of cracks in prestressed cable-stayed bridges with CDEM, columnId=1150494644690366681, journalTitle=Science & Technology Review, columnName=Papers, runingTitle=null, highlight=null, articleAbstract=Prestressed cable-stayed bridges are prone to crack due to various loads and temperatures. The traditional finite element method can not accurately describe the generation and expansion of cracks. In this paper, numerical simulation of a prestressed bridge panel is carried out to analyze the origin and long-term evolution of cracks based on the continuousdiscontinuous element method and multi physical field coupling. The results show that the gravity of the bridge panel itself, the cable force and the degree of bending and straightness of the bridge are not the main reasons for cracks of the bridge and that the prestress of the reinforcement hinders the cracks to a certain extent. The long-term cyclic effect of temperature plays a leading role in the initial crack of the bridge panels, and repeated loading of vehicle dynamic load in the later period makes the initial cracks further expand. The research results of this paper can provide a certain theoretical reference for analyzing causes of
bridge cracks., authors=GAN Jianfeng¹, ZHONG Yunping¹, RAO Faqiang¹, QIN Kaiqiang², CAO Ruyang³, ZHANG Yiming³, authorsList=GAN Jianfeng, ZHONG Yunping, RAO Faqiang, QIN Kaiqiang, CAO Ruyang, ZHANG Yiming, authorCompany=1. Guangzhou Daguang Expressway Co., Ltd., Guangzhou 510900, China
2. National Engineering Research Center for China Highway Bridge Construction Co., Ltd., Beijing 100088, China
3. School of Civil Engineering and Transportation, Hebei University of Technology, Tianjin 300401, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=Fu78zR2PC3Xv60MrqSooRw==, pdfFileSize=4249695, 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=1242140507153969175, articleId=1242140504691909039, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=基于连续-非连续单元法的预应力斜拉桥桥面板裂缝成因分析, columnId=1242117055294537731, journalTitle=科技导报, columnName=论文, runingTitle=null, highlight=null, articleAbstract=预应力斜拉桥受到多种荷载及温度作用从而容易出现裂缝。传统的有限元方法不能精准刻画裂缝的产生与扩展，基于连续-非连续单元法，结合多物理场耦合对预应力桥面板展开数值模拟，对当前裂缝成因、长期演化进行了分析。结果表明：桥面板自身重力、拉索索力及桥梁弯直程度不是构成桥梁出现裂缝的主要原因，同时钢筋预应力在一定程度上有阻碍裂缝开展的作用；温度长期循环作用对桥面板初始裂缝起主导作用，后期车辆动荷载反复加载使初始裂缝进一步扩展。, authors=甘建锋¹，钟运平¹，饶法强¹，秦凯强²，曹汝洋³，张一鸣^3*, authorsList=甘建锋，钟运平，饶法强，秦凯强，曹汝洋，张一鸣, authorCompany=1. 广州大广高速公路有限公司，广州 510900
2. 中交公路长大桥建设国家工程研究中心有限公司，北京 100088
3. 河北工业大学土木与交通学院，天津 300401, correspAuthors=null, authorNote=甘建锋，工程师，研究方向为公路桥梁工程建设与管理，电子信箱：1071368518@qq.com, correspAuthorsNote=张一鸣（通信作者），教授，研究方向为岩土工程，电子信箱：yiming.zhang@hebut.edu.cn, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=t71OQoWTRUx/tRC4A903Og==, pdfFileSize=4249695, 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=国家自然科学基金项目（52178324）)}, authors=null, keywords=[Keyword(id=1242140506864562193, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242140504691909039, language=CN, orderNo=1, keyword=预应力斜拉桥), Keyword(id=1242140506935865363, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242140504691909039, language=CN, orderNo=1, keyword=连续-非连续单元法), Keyword(id=1242140507002974229, 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