Article(id=1322636154000753664, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322636152813768892, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20200207, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1585152000000, receivedDateStr=2020-03-26, revisedDate=1585670400000, revisedDateStr=2020-04-01, acceptedDate=null, acceptedDateStr=null, onlineDate=1793270632504, onlineDateStr=2026-10-29, pubDate=1597852800000, pubDateStr=2020-08-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793270632504, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793270632504, creator=13701087609, updateTime=1793270632504, updator=13701087609, issue=Issue{id=1322636152813768892, tenantId=1146029695717560320, journalId=1263187385517883426, year='2020', volume='48', issue='8', pageStart='1145', pageEnd='1352', issueExtLink='null', onlineDate='null', pubDate='1597852800000', pubDateStr='2020-08-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793270632222, creator='13701087609', updateTime=1793277122165, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322663373687337109, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322636152813768892, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322663373687337110, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322636152813768892, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1168, endPage=1176, ext={EN=ArticleExt(id=1322636154264993792, articleId=1322636154000753664, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Effect of Thickness of Ultra-High Performance Concrete on Its Axial Tensile Stress-Strain-Crack, columnId=1322636153396777149, journalTitle=Journal of the Chinese Ceramic Society, columnName=Special Issue for Ultra-high Performance ConcreteⅠ, runingTitle=null, highlight=null, articleAbstract=

Direct tensile tests were carried out on three types of ultra-high performance concrete (UHPC) specimens with different thicknesses of arc-shaped dog bone shape, and the relationship among axial tensile stress, strain, and crack of UHPC was analyzed. The results show that the tensile strength of UHPC increases slightly, the ability to limit crack development increases, the strain capacity decreases significantly, and the strain softening rate increases as the specimen thickness decreases from 100 mm to 30 mm. When the crack width is less than 0.2 mm, the post-crack stress of UHPC increases slightly. After the main crack forms, the crack development rate and the post-crack stress decline rate increase correspondingly. The tensile strain value is fitted from the main crack width, and it is indicated that the main crack development process of UHPC specimen be in reasonable agreement with the strain softening stage.

, authors=Qiongwei LIU1, 2, Xudong SHAO1, 2, Minghong QIU1, 2, Panpan LI1, 2, Liansheng LIU1, 2, Debao LYU1, 2, authorsList=Qiongwei LIU, Xudong SHAO, Minghong QIU, Panpan LI, Liansheng LIU, Debao LYU, authorCompany=null, correspAuthors=Xudong SHAO, authorNote=

LIU Qiongwei (1996-), male, Master candidate. E-mail:

, correspAuthorsNote=
SHAO Xudong (1961-), male, Ph.D., Professor. E-mail:
, 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=1322636154525040641, articleId=1322636154000753664, tenantId=1146029695717560320, journalId=1263187385517883426, language=CN, title=超高性能混凝土厚度对轴拉应力-应变-裂缝的影响, columnId=1322636153585520831, journalTitle=硅酸盐学报, columnName=超高性能混凝土专题, runingTitle=null, highlight=null, articleAbstract=

对3种不同厚度的弧形狗骨头形状超高性能混凝土(UHPC)试件开展直接拉伸试验,分析了UHPC轴拉应力、应变、裂缝之间的关系。研究表明:随着试件厚度从100 mm减小到30 mm,UHPC的抗拉强度略有提高,限制裂缝发展能力增强,应变能力显著下降,应变软化速率增加;在裂缝宽度不超过0.2 mm时,UHPC的裂后应力略有提高,主裂缝形成后,裂缝发展速率和裂后应力下降速率相应增大。由主裂缝宽度拟合得到拉伸应变值,发现UHPC试件的主裂缝发展过程与应变软化阶段吻合较好。

, authors=刘琼伟1, 2, 邵旭东1, 2, 邱明红1, 2, 李盼盼1, 2, 刘连胜1, 2, 吕德堡1, 2, authorsList=刘琼伟, 邵旭东, 邱明红, 李盼盼, 刘连胜, 吕德堡, authorCompany=null, correspAuthors=邵旭东, authorNote=

刘琼伟(1996—),男,硕士研究生。

, correspAuthorsNote=
邵旭东(1961—),男,博士,教授。
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超高性能混凝土厚度对轴拉应力-应变-裂缝的影响
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刘琼伟 1, 2 , 邵旭东 1, 2 , 邱明红 1, 2 , 李盼盼 1, 2 , 刘连胜 1, 2 , 吕德堡 1, 2
硅酸盐学报 | 超高性能混凝土专题 2020,48(8): 1168-1176
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硅酸盐学报 |超高性能混凝土专题 2020 , 48 (8) : 1168 -1176
超高性能混凝土厚度对轴拉应力-应变-裂缝的影响
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刘琼伟1, 2 , 邵旭东1, 2 , 邱明红1, 2, 李盼盼1, 2, 刘连胜1, 2, 吕德堡1, 2
作者信息
  • 1.湖南大学土木工程学院,长沙 410082
  • 2.湖南大学风工程与桥梁工程湖南省重点实验室,长沙 410082
通讯作者:
邵旭东(1961—),男,博士,教授。
作者简介:

刘琼伟(1996—),男,硕士研究生。

Effect of Thickness of Ultra-High Performance Concrete on Its Axial Tensile Stress-Strain-Crack
Qiongwei LIU1, 2 , Xudong SHAO1, 2 , Minghong QIU1, 2, Panpan LI1, 2, Liansheng LIU1, 2, Debao LYU1, 2
Affiliations
  • 1.College of Civil Engineering, Hunan University, Changsha 410082, China
  • 2.Key Laboratory for Wind and Bridge Engineering of Hunan Province, Hunan University, Changsha 410082, China
  • Corresponding Author:
    SHAO Xudong (1961-), male, Ph.D., Professor. E-mail:

    LIU Qiongwei (1996-), male, Master candidate. E-mail:

出版时间: 2020-08-20 doi: 10.14062/j.issn.0454-5648.20200207
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对3种不同厚度的弧形狗骨头形状超高性能混凝土(UHPC)试件开展直接拉伸试验,分析了UHPC轴拉应力、应变、裂缝之间的关系。研究表明:随着试件厚度从100 mm减小到30 mm,UHPC的抗拉强度略有提高,限制裂缝发展能力增强,应变能力显著下降,应变软化速率增加;在裂缝宽度不超过0.2 mm时,UHPC的裂后应力略有提高,主裂缝形成后,裂缝发展速率和裂后应力下降速率相应增大。由主裂缝宽度拟合得到拉伸应变值,发现UHPC试件的主裂缝发展过程与应变软化阶段吻合较好。

超高性能混凝土  /  直接拉伸试验  /  抗拉强度  /  应变能力  /  裂缝发展

Direct tensile tests were carried out on three types of ultra-high performance concrete (UHPC) specimens with different thicknesses of arc-shaped dog bone shape, and the relationship among axial tensile stress, strain, and crack of UHPC was analyzed. The results show that the tensile strength of UHPC increases slightly, the ability to limit crack development increases, the strain capacity decreases significantly, and the strain softening rate increases as the specimen thickness decreases from 100 mm to 30 mm. When the crack width is less than 0.2 mm, the post-crack stress of UHPC increases slightly. After the main crack forms, the crack development rate and the post-crack stress decline rate increase correspondingly. The tensile strain value is fitted from the main crack width, and it is indicated that the main crack development process of UHPC specimen be in reasonable agreement with the strain softening stage.

ultra-high performance concrete  /  direct tensile test  /  tensile strength  /  strain capacity  /  crack development
刘琼伟, 邵旭东, 邱明红, 李盼盼, 刘连胜, 吕德堡. 超高性能混凝土厚度对轴拉应力-应变-裂缝的影响. 硅酸盐学报, 2020 , 48 (8) : 1168 -1176 . DOI: 10.14062/j.issn.0454-5648.20200207
Qiongwei LIU, Xudong SHAO, Minghong QIU, Panpan LI, Liansheng LIU, Debao LYU. Effect of Thickness of Ultra-High Performance Concrete on Its Axial Tensile Stress-Strain-Crack[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (8) : 1168 -1176 . DOI: 10.14062/j.issn.0454-5648.20200207
  • 国家重点研发计划(2018YFC0705400)
  • 国家自然科学基金(51778223)
  • 湖南省科技重大专项(2017SK1010)
  • 广东省交通运输厅2017年重大科技专项(科技2017-01-002)
  • 湖南省研究生科研创新项目(CX2017B119)
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2020年第48卷第8期
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doi: 10.14062/j.issn.0454-5648.20200207
  • 接收时间:2020-03-26
  • 首发时间:2026-10-29
  • 出版时间:2020-08-20
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  • 收稿日期:2020-03-26
  • 修回日期:2020-04-01
基金
国家重点研发计划(2018YFC0705400)
国家自然科学基金(51778223)
湖南省科技重大专项(2017SK1010)
广东省交通运输厅2017年重大科技专项(科技2017-01-002)
湖南省研究生科研创新项目(CX2017B119)
作者信息
    1.湖南大学土木工程学院,长沙 410082
    2.湖南大学风工程与桥梁工程湖南省重点实验室,长沙 410082

通讯作者:

邵旭东(1961—),男,博士,教授。
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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