Article(id=1276896842499625018, tenantId=1146029695717560320, journalId=1276577754012160025, issueId=1276896661737701828, articleNumber=null, orderNo=null, doi=10.3724/j.gyjzG26031503, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1773504000000, receivedDateStr=2026-03-15, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1782365530847, onlineDateStr=2026-06-25, pubDate=1779206400000, pubDateStr=2026-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1782365530847, onlineIssueDateStr=2026-06-25, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1782365530847, creator=13701087609, updateTime=1782365530847, updator=13701087609, issue=Issue{id=1276896661737701828, tenantId=1146029695717560320, journalId=1276577754012160025, year='2026', volume='56', issue='5', pageStart='1', pageEnd='264', issueExtLink='null', onlineDate='null', pubDate='1779206400000', pubDateStr='2026-05-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1782365487751, creator='13701087609', updateTime=1782367237543, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1276904000968589318, tenantId=1146029695717560320, journalId=1276577754012160025, issueId=1276896661737701828, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1276904000968589319, tenantId=1146029695717560320, journalId=1276577754012160025, issueId=1276896661737701828, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=141, endPage=147, ext={EN=ArticleExt(id=1276896842705145916, articleId=1276896842499625018, tenantId=1146029695717560320, journalId=1276577754012160025, language=EN, title=Evaluation and Strengthening of the Flexural Behavior of 45-Year-Old Precast PC Hollow-Core Slabs, columnId=null, journalTitle=Industrial Construction, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Many existing rural houses face structural safety hazards due to material performance degradation. This study investigated the residual bearing capacity and the strengthening effect of carbon fiber reinforced polymer (CFRP) sheets on old precast prestressed concrete (PC) hollow-core slabs, using specimens obtained from a demolished 45-year-old rural house in Shanghai. The test involved two PC slabs: one served as the control specimen, and the other was strengthened with CFRP sheets. Static loading tests were conducted to compare and analyze their failure modes, deformation capacity, and energy dissipation capacity. Based on the measured data, the strain development pattern of the CFRP sheets was analyzed. The results showed that the 45-year-old PC hollow-core slabs still had a certain bearing capacity but with a low safety margin, exhibiting a typical brittle flexural failure due to under-reinforcement. After CFRP strengthening, the failure mode changed to shear failure with obvious ductile characteristics, because the CFRP sheets bore the main tensile stress in the later loading stage.
, authors=null, authorsList=Guolin WANG, Nan YE, Yulin MIAO, Yuhua Tang, Rong ZHANG, authorCompany=null, correspAuthors=null, 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=1276896846517768276, articleId=1276896842499625018, tenantId=1146029695717560320, journalId=1276577754012160025, language=CN, title=服役45年预制预应力混凝土(PC)空心板受弯性能评估与加固, columnId=1276896697703858872, journalTitle=工业建筑, columnName=工程诊断与性能提升技术, runingTitle=null, highlight=null, articleAbstract=
既有农房因建筑材料性能退化,大量存在结构安全隐患。为评估老旧农房中预制预应力混凝土空心板(简称PC空心板)的剩余承载力,明确碳纤维布(CFRP布)对其受弯加固的效果,以上海市某老旧农房拆除的45年服役期PC空心板为研究对象,开展受弯性能试验研究。选取两块板分别作为对比试件和CFRP布加固件。通过静力加载试验,对比分析了两块板的破坏形态、变形能力和耗能能力,并结合测点数据探究了CFRP布的应变发展规律。结果发现,服役45年的PC空心板发生了典型的脆性少筋受弯破坏,仍具有一定的承载能力,但安全储备低;经CFRP布加固后,因CFRP布在加载后期承担了主要的拉应力,试件破坏模式转变为延性特征明显的受剪破坏。
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, authorsList=王国林, 叶楠, 苗钰林, 唐玉华, 张嵘, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=LESAl6s10Q3D+9PjWfhriA==, magXml=Xyo7k8XdGoAYX+2YaVZDmw==, pdfUrl=null, pdf=y398Sc8jvAuUVNG+GnJnuQ==, pdfFileSize=15475613, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=u/Jr9N2GcSbsc96xeA4gXQ==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=zXLHBzs3Xr6adz5MwpJJLg==, mapNumber=null, fund=null)}, authors=[Author(id=1276896847297908834, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=felixwseu@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1276896847545372772, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, authorId=1276896847297908834, language=EN, stringName=Guolin WANG, firstName=Guolin, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1Faculty of Urban Construction and Ecological Technology,Shanghai Institute of Technology, Shanghai201418, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1276896849206317157, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, authorId=1276896847297908834, language=CN, stringName=王国林, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1上海应用技术大学城市建设与生态技术学部,上海201418, bio={"content":"
王国林,博士,主要从事高性能复合材料提升既有混凝土结构基本及抗震性能研究。电子信箱:felixwseu@163.com
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王国林,博士,主要从事高性能复合材料提升既有混凝土结构基本及抗震性能研究。电子信箱:felixwseu@163.com
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1上海应用技术大学城市建设与生态技术学部,上海201418)])]), Author(id=1276896849311174759, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, 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=1276896849650913385, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, authorId=1276896849311174759, language=EN, stringName=Nan YE, firstName=Nan, middleName=null, lastName=YE, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1上海应用技术大学城市建设与生态技术学部,上海201418, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1276896846782009430, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, xref=1, ext=[AuthorCompanyExt(id=1276896846790398039, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, companyId=1276896846782009430, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1上海应用技术大学城市建设与生态技术学部,上海201418)])]), Author(id=1276896850171007084, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, 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=1276896850485579886, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, authorId=1276896850171007084, language=EN, stringName=Yulin MIAO, firstName=Yulin, middleName=null, lastName=MIAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1Faculty of Urban Construction and Ecological Technology,Shanghai Institute of Technology, Shanghai201418, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1276896850569465967, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, authorId=1276896850171007084, language=CN, stringName=苗钰林, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1上海应用技术大学城市建设与生态技术学部,上海201418, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1276896846782009430, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, xref=1, ext=[AuthorCompanyExt(id=1276896846790398039, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, companyId=1276896846782009430, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1Faculty of Urban Construction and Ecological Technology,Shanghai Institute of Technology, Shanghai201418, China), AuthorCompanyExt(id=1276896846798786648, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, companyId=1276896846782009430, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1上海应用技术大学城市建设与生态技术学部,上海201418)])]), Author(id=1276896850984702065, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, orderNo=3, 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=1276896851391549555, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, authorId=1276896850984702065, language=EN, stringName=Yuhua Tang, firstName=Yuhua, middleName=null, lastName=Tang, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2Shanghai Construction and Management Commission, Shanghai201499, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1276896851731288180, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, authorId=1276896850984702065, language=CN, stringName=唐玉华, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2上海市奉贤区建设和管理委员会,上海201499, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1276896847117553753, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, xref=2, ext=[AuthorCompanyExt(id=1276896847125942362, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, companyId=1276896847117553753, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2Shanghai Construction and Management Commission, Shanghai201499, China), AuthorCompanyExt(id=1276896847130136667, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, companyId=1276896847117553753, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2上海市奉贤区建设和管理委员会,上海201499)])]), Author(id=1276896851815174262, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, orderNo=4, 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=1276896853660668024, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, authorId=1276896851815174262, language=EN, stringName=Rong ZHANG, firstName=Rong, middleName=null, lastName=ZHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3Shanghai Tangyi Construction Engineering Management Co., Ltd., Shanghai201400, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1276896853769719929, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, authorId=1276896851815174262, language=CN, stringName=张嵘, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3上海唐一建设工程管理有限公司,上海201400, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1276896847197245533, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, xref=3, ext=[AuthorCompanyExt(id=1276896847205634142, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, companyId=1276896847197245533, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3上海唐一建设工程管理有限公司,上海201400)])])], keywords=[Keyword(id=1276896853899743354, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=EN, orderNo=1, keyword=existing rural buildings), Keyword(id=1276896854247870587, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=EN, orderNo=2, keyword=precast prestressed concrete hollow-core slabs), Keyword(id=1276896854319173756, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=EN, orderNo=3, keyword=CFRP sheet strengthening), Keyword(id=1276896854398865533, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=EN, orderNo=4, keyword=flexural behavior), Keyword(id=1276896854679883902, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=CN, orderNo=1, keyword=既有农房), Keyword(id=1276896854780547199, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=CN, orderNo=2, keyword=预制预应力混凝土空心板), Keyword(id=1276896855095120000, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=CN, orderNo=3, keyword=CFRP布加固), Keyword(id=1276896855204171905, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=CN, orderNo=4, keyword=受弯性能)], refs=[Reference(id=1276896859729825948, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, doi=null, pmid=null, pmcid=null, year=2016, volume=36, issue=3, pageStart=478, pageEnd=485, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=陈振龙, 韩重庆, 许清风, journalName=防灾减灾工程学报, refType=null, unstructuredReference=陈振龙,韩重庆,许清风,
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1Faculty of Urban Construction and Ecological Technology,Shanghai Institute of Technology, Shanghai201418, China), AuthorCompanyExt(id=1276896846798786648, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, companyId=1276896846782009430, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1上海应用技术大学城市建设与生态技术学部,上海201418)]), AuthorCompany(id=1276896847117553753, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, xref=2, ext=[AuthorCompanyExt(id=1276896847125942362, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, companyId=1276896847117553753, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3上海唐一建设工程管理有限公司,上海201400)])], figs=[ArticleFig(id=1276896855636185218, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=EN, label=Fig.1, caption=
Tensile test of rebars, figureFileSmall=2XM6o9teX57v8S/U4RjYNg==, figureFileBig=u/Jr9N2GcSbsc96xeA4gXQ==, tableContent=null), ArticleFig(id=1276896855694905475, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=CN, label=图1, caption=
钢筋材性试验 (a) 材性测试 (b) 实测应力-应变曲线, figureFileSmall=2XM6o9teX57v8S/U4RjYNg==, figureFileBig=u/Jr9N2GcSbsc96xeA4gXQ==, tableContent=null), ArticleFig(id=1276896856340828292, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=EN, label=Fig.2, caption=
Strengthening scheme, figureFileSmall=2QrxCWCyR8bY/rFZkRhThQ==, figureFileBig=hmh5OxMJOI0m7s7skajFRw==, tableContent=null), ArticleFig(id=1276896856420520069, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=CN, label=图2, caption=
加固方案, figureFileSmall=2QrxCWCyR8bY/rFZkRhThQ==, figureFileBig=hmh5OxMJOI0m7s7skajFRw==, tableContent=null), ArticleFig(id=1276896856487628934, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=EN, label=Fig.3, caption=
Test setup and measuring point layout, figureFileSmall=MUQY/WXfWx7NPgNOYIV4Dg==, figureFileBig=JXsz7f4LfrPy4mT2v69cfw==, tableContent=null), ArticleFig(id=1276896858131796103, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=CN, label=图3, caption=
试验装置及测点布置 mm, figureFileSmall=MUQY/WXfWx7NPgNOYIV4Dg==, figureFileBig=JXsz7f4LfrPy4mT2v69cfw==, tableContent=null), ArticleFig(id=1276896858203099272, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=EN, label=Fig.4, caption=
Crack development and failure modes of specimens, figureFileSmall=PrfHcRZ2A5WWwMQzPz7SEA==, figureFileBig=DhPesCY+43U6H054kTnWRw==, tableContent=null), ArticleFig(id=1276896858270208137, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=CN, label=图4, caption=
试件裂缝开展及破坏模式 kN, figureFileSmall=PrfHcRZ2A5WWwMQzPz7SEA==, figureFileBig=DhPesCY+43U6H054kTnWRw==, tableContent=null), ArticleFig(id=1276896858341511306, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=EN, label=Fig.5, caption=
Load-deflection curves of specimens, figureFileSmall=UC8ovR9Q9Cdm+8ol7WF0vg==, figureFileBig=eszNWXXR/XlZBbj31psdCQ==, tableContent=null), ArticleFig(id=1276896858425397387, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=CN, label=图5, caption=
试件荷载-位移曲线, figureFileSmall=UC8ovR9Q9Cdm+8ol7WF0vg==, figureFileBig=eszNWXXR/XlZBbj31psdCQ==, tableContent=null), ArticleFig(id=1276896858492506252, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=EN, label=Fig.6, caption=
Strain analysis at measuring points of CFRP sheets, figureFileSmall=4VuSD2MxjWBbLhJullASWw==, figureFileBig=8O86cIQX4Rfpjeup76QeJg==, tableContent=null), ArticleFig(id=1276896858563809421, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=CN, label=图6, caption=
CFRP布测点应变分析, figureFileSmall=4VuSD2MxjWBbLhJullASWw==, figureFileBig=8O86cIQX4Rfpjeup76QeJg==, tableContent=null), ArticleFig(id=1276896858626723982, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=EN, label=Fig.7, caption=
Comparison of experimental and finite element results, figureFileSmall=zFUdSswf/kXeBmIY/l9w9g==, figureFileBig=+I91iIH4SYPtr6t8NTJQXQ==, tableContent=null), ArticleFig(id=1276896858693832847, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=CN, label=图7, caption=
试验-有限元结果对比, figureFileSmall=zFUdSswf/kXeBmIY/l9w9g==, figureFileBig=+I91iIH4SYPtr6t8NTJQXQ==, tableContent=null), ArticleFig(id=1276896858781913232, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=EN, label=Fig.8, caption=
Failure modes from the FE model, figureFileSmall=l/HuoCcNbhZ+68TmN0H3zg==, figureFileBig=ICLbNPBKwIuAvjrr9eobAA==, tableContent=null), ArticleFig(id=1276896858853216401, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=CN, label=图8, caption=
模拟板破坏形态, figureFileSmall=l/HuoCcNbhZ+68TmN0H3zg==, figureFileBig=ICLbNPBKwIuAvjrr9eobAA==, tableContent=null), ArticleFig(id=1276896858916130962, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=EN, label=Fig.9, caption=
Load-midspan deflection curves with different CFRP sheet widths, figureFileSmall=zaCJYmNpek8Eal8hYMQgKA==, figureFileBig=5zRbtEL7vSn1SytvO1oMZQ==, tableContent=null), ArticleFig(id=1276896858987434131, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=CN, label=图9, caption=
变CFRP布宽的荷载-跨中挠度, figureFileSmall=zaCJYmNpek8Eal8hYMQgKA==, figureFileBig=5zRbtEL7vSn1SytvO1oMZQ==, tableContent=null), ArticleFig(id=1276896859071320212, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=EN, label=Fig.10, caption=
Failure modes from the FE model with different CFRP sheet widths, figureFileSmall=VTKB+j21yOLJBB9IJXLjKw==, figureFileBig=63nnePbVbuGuCGbjKqYkLA==, tableContent=null), ArticleFig(id=1276896859151011989, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=CN, label=图10, caption=
变CFRP布宽的模拟板破坏形态, figureFileSmall=VTKB+j21yOLJBB9IJXLjKw==, figureFileBig=63nnePbVbuGuCGbjKqYkLA==, tableContent=null), ArticleFig(id=1276896859222315158, tenantId=1146029695717560320, journalId=1276577754012160025, articleId=1276896842499625018, language=EN, label=Table 1, caption=
Parameters of PC hollow-core slabs
, figureFileSmall=null, figureFileBig=null, tableContent=
| 试件 | 编号 | 预制层 | 现浇层 | CFRP布 |
|---|
| 尺寸(h×b×l)/mm | 混凝土强度等级 | 钢丝 | 尺寸(h×b×l)/mm | 混凝土强度等级 | CFRP布型号 | 加固尺寸(t×b×l)/mm |
|---|
| 未加固板 | P0 | 110×500×2500 | C16 | 12ϕ4 | 30 ×500×2500 | C45 | | |
| 加固板 | P1 | 110 ×500×2500 | C16 | 12ϕ4 | 30×500×2500 | C45 | 高强I级 | 0.167 ×500×2500 |
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PC空心板参数
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| 试件 | 编号 | 预制层 | 现浇层 | CFRP布 |
|---|
| 尺寸(h×b×l)/mm | 混凝土强度等级 | 钢丝 | 尺寸(h×b×l)/mm | 混凝土强度等级 | CFRP布型号 | 加固尺寸(t×b×l)/mm |
|---|
| 未加固板 | P0 | 110×500×2500 | C16 | 12ϕ4 | 30 ×500×2500 | C45 | | |
| 加固板 | P1 | 110 ×500×2500 | C16 | 12ϕ4 | 30×500×2500 | C45 | 高强I级 | 0.167 ×500×2500 |
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Test results
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| 试件 | 峰值荷载 | 耗能/ (kN·mm) | 破坏模态 |
|---|
| 承载力/kN | 位移/mm |
|---|
| P0 | 33.2 | 16 | 410 | 少筋受弯破坏 |
| P1 | 51.6 | 25 | 827 | 受剪破坏 |
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试验结果
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| 试件 | 峰值荷载 | 耗能/ (kN·mm) | 破坏模态 |
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| 承载力/kN | 位移/mm |
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| P0 | 33.2 | 16 | 410 | 少筋受弯破坏 |
| P1 | 51.6 | 25 | 827 | 受剪破坏 |
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Comparison of ultimate bearing capacity results
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| 试件 | 试验值/kN | 有限元模拟值/kN | 误差/% |
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| P0 | 33.2 | 35.3 | 6.3 |
| P1 | 51.6 | 50.4 | 2.3 |
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极限承载力结果对比
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| 试件 | 试验值/kN | 有限元模拟值/kN | 误差/% |
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| P0 | 33.2 | 35.3 | 6.3 |
| P1 | 51.6 | 50.4 | 2.3 |
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