Article(id=1223278134527656174, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223278131956551924, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20222590, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1671033600000, receivedDateStr=2022-12-15, revisedDate=1673971200000, revisedDateStr=2023-01-18, acceptedDate=null, acceptedDateStr=null, onlineDate=1769581834680, onlineDateStr=2026-01-28, pubDate=1698163200000, pubDateStr=2023-10-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769581834680, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769581834680, creator=13701087609, updateTime=1769581834680, updator=13701087609, issue=Issue{id=1223278131956551924, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='10', pageStart='1', pageEnd='228', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769581834067, creator=13701087609, updateTime=1769584342407, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223288652869030422, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223278131956551924, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223288652869030423, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223278131956551924, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=154, endPage=157, ext={EN=ArticleExt(id=1223278134871589116, articleId=1223278134527656174, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Numerical Feedback Under Mesoscale Based on Tension/Compression Creep Test of Hydraulic Concrete in Water, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

In view of the lack of research on the creep characteristics of hydraulic concrete in water from mesoscale scale, a meso-finite element model of concrete specimen of "aggregate-mortar-transition layer" was established. Based on the test data of tensile and compressive creep in water, the method of "orthogonal design-neural network-meso-finite element calculation" was adopted to implement the inversion analysis of the tensile and compressive specific creep of hydraulic concrete specimens at mesoscale. Finally, the relationship between tensile and compressive specific creep of hydraulic concrete and mortar was compared. The results show that the variation law of tension creep degree of hydraulic concrete in water is similar to that in sealed. The creep degree of mortar water is 2.4 times of hydraulic concrete water under conditions of tensile and compressive creep.

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针对目前尚缺少从细观尺度研究水工混凝土水中徐变特性的问题,通过建立骨料—砂浆—过渡层的混凝土试件细观有限元模型,基于水工混凝土水中拉伸、压缩徐变试验数据,采用正交设计—神经网络—细观有限元计算相结合的方法,反演了水工混凝土试件细观尺度下砂浆的拉伸、压缩徐变度,最后对比分析了水工混凝土和砂浆拉伸、压缩徐变度的关系。结果表明,水工混凝土水中状态与密封状态下拉压徐变度变化规律相似;不论拉伸徐变还是压缩徐变,砂浆水中徐变度约为水工混凝土水中徐变度的2.4倍。

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黄耀英(1977-),男,博士、教授、博导,研究方向为水工结构安全监控,E-mail:
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邵成羽(1998-),男,硕士研究生,研究方向为水工混凝土耐久性,E-mail:

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邵成羽(1998-),男,硕士研究生,研究方向为水工混凝土耐久性,E-mail:

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邵成羽(1998-),男,硕士研究生,研究方向为水工混凝土耐久性,E-mail:

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细观尺度下水工混凝土水中拉压徐变试验数值反馈
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邵成羽 1 , 方国宝 2 , 徐小枫 3 , 黄耀英 1
水电能源科学 | 水利水电工程 2023,41(10): 154-157
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水电能源科学 | 水利水电工程 2023, 41(10): 154-157
细观尺度下水工混凝土水中拉压徐变试验数值反馈
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邵成羽1 , 方国宝2, 徐小枫3, 黄耀英1
作者信息
  • 1.三峡大学水利与环境学院,湖北 宜昌 443002
  • 2.长江勘测规划设计研究院,湖北 武汉 430000
  • 3.中国电建集团贵阳勘测设计研究院有限公司,贵州 贵阳 550081
  • 邵成羽(1998-),男,硕士研究生,研究方向为水工混凝土耐久性,E-mail:

通讯作者:

黄耀英(1977-),男,博士、教授、博导,研究方向为水工结构安全监控,E-mail:
Numerical Feedback Under Mesoscale Based on Tension/Compression Creep Test of Hydraulic Concrete in Water
Cheng-yu SHAO1 , Guo-bao FANG2, Xiao-feng XU3, Yao-ying HUANG1
Affiliations
  • 1.College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China
  • 2.Changjiang Institute of Survey, Planning, Design and Research, Wuhan 430000, China
  • 3.PowerChina Guiyang Engineering Corporation Limited, Guiyang 550081, China
出版时间: 2023-10-25 doi: 10.20040/j.cnki.1000-7709.2023.20222590
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针对目前尚缺少从细观尺度研究水工混凝土水中徐变特性的问题,通过建立骨料—砂浆—过渡层的混凝土试件细观有限元模型,基于水工混凝土水中拉伸、压缩徐变试验数据,采用正交设计—神经网络—细观有限元计算相结合的方法,反演了水工混凝土试件细观尺度下砂浆的拉伸、压缩徐变度,最后对比分析了水工混凝土和砂浆拉伸、压缩徐变度的关系。结果表明,水工混凝土水中状态与密封状态下拉压徐变度变化规律相似;不论拉伸徐变还是压缩徐变,砂浆水中徐变度约为水工混凝土水中徐变度的2.4倍。

水工混凝土  /  水中徐变  /  细观有限元计算  /  砂浆徐变度  /  优化反演

In view of the lack of research on the creep characteristics of hydraulic concrete in water from mesoscale scale, a meso-finite element model of concrete specimen of "aggregate-mortar-transition layer" was established. Based on the test data of tensile and compressive creep in water, the method of "orthogonal design-neural network-meso-finite element calculation" was adopted to implement the inversion analysis of the tensile and compressive specific creep of hydraulic concrete specimens at mesoscale. Finally, the relationship between tensile and compressive specific creep of hydraulic concrete and mortar was compared. The results show that the variation law of tension creep degree of hydraulic concrete in water is similar to that in sealed. The creep degree of mortar water is 2.4 times of hydraulic concrete water under conditions of tensile and compressive creep.

hydraulic concrete  /  creep in water  /  microscopic finite element model  /  mortar creep degree  /  optimized inversion
邵成羽, 方国宝, 徐小枫, 黄耀英. 细观尺度下水工混凝土水中拉压徐变试验数值反馈. 水电能源科学, 2023 , 41 (10) : 154 -157 . DOI: 10.20040/j.cnki.1000-7709.2023.20222590
Cheng-yu SHAO, Guo-bao FANG, Xiao-feng XU, Yao-ying HUANG. Numerical Feedback Under Mesoscale Based on Tension/Compression Creep Test of Hydraulic Concrete in Water[J]. Water Resources and Power, 2023 , 41 (10) : 154 -157 . DOI: 10.20040/j.cnki.1000-7709.2023.20222590
  • 国家自然科学基金项目(52179135; 51779130)
2023年第41卷第10期
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doi: 10.20040/j.cnki.1000-7709.2023.20222590
  • 接收时间:2022-12-15
  • 首发时间:2026-01-28
  • 出版时间:2023-10-25
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  • 收稿日期:2022-12-15
  • 修回日期:2023-01-18
基金
国家自然科学基金项目(52179135; 51779130)
作者信息
    1.三峡大学水利与环境学院,湖北 宜昌 443002
    2.长江勘测规划设计研究院,湖北 武汉 430000
    3.中国电建集团贵阳勘测设计研究院有限公司,贵州 贵阳 550081

通讯作者:

黄耀英(1977-),男,博士、教授、博导,研究方向为水工结构安全监控,E-mail:
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2种不同金属材料的力学参数

Family
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Number of
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种数
Number of
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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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