|本期目录/Table of Contents|

[1]梁 林,王秋维,史庆轩,等.常温养护超高性能混凝土弯拉性能及轴拉本构模型[J].建筑科学与工程学报,2024,41(03):43-53.[doi:10.19815/j.jace.2022.05034]
　LIANG Lin,WANG Qiuwei,SHI Qingxuan,et al.Bending-tension performance and axial tension constitutive model of ultra-high performance concrete under normal temperature curing[J].Journal of Architecture and Civil Engineering,2024,41(03):43-53.[doi:10.19815/j.jace.2022.05034]
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常温养护超高性能混凝土弯拉性能及轴拉本构模型(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
41卷
期数:
2024年03期
页码:
43-53
栏目:
建筑材料
出版日期:
2024-05-20

文章信息/Info

Title:
Bending-tension performance and axial tension constitutive model of ultra-high performance concrete under normal temperature curing
文章编号:
1673-2049(2024)03-0043-11
作者:
梁 林1,王秋维1,2,3,史庆轩1,2,3,韩文超1,于 婧1
(1. 西安建筑科技大学 土木工程学院,陕西 西安 710055; 2. 西安建筑科技大学 绿色建筑全国重点实验室,陕西 西安 710055; 3. 西安建筑科技大学 结构工程与抗震教育部重点实验室,陕西 西安 710055)
Author(s):
LIANG Lin2, WANG Qiuwei1,2,3, SHI Qingxuan1,2,3, HAN Wenchao1, YU Jing1
(1. College of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China; 2. State Key Laboratory of Green Building, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China; 3. Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China)
关键词:
超高性能混凝土;  常温养护;  弯拉性能;  倒推分析方法;  轴拉本构模型
Keywords:
ultra-high performance concrete;  normal temperature curing;  bending-tension performance;  backward analysis method;  axial tension constitutive model
分类号:
TU528
DOI:
10.19815/j.jace.2022.05034
文献标志码:
A
摘要:
根据水化反应方程和紧密堆积理论确定了常温养护下超高性能混凝土(UHPC)的基础配合比,基于此考虑水胶比和钢纤维掺量设计了8组UHPC抗弯试件。通过四点弯曲试验,分析了试件的受弯破坏形态、荷载-挠度曲线、弯拉特征参数和弯曲韧性等; 基于试验结果采用倒推方法得到了UHPC轴拉应力-应变曲线,采用回归分析提出了考虑纤维特征的轴拉本构模型,并经过材料和构件两个层次的验证。结果表明:掺加钢纤维可抑制主裂缝的发展,从而明显改善UHPC的抗弯韧性,钢纤维掺量为2.0%的UHPC弯曲韧性指数达到116.9 J; 随着水胶比增大,试件抗折强度和峰值挠度均呈下降趋势; 增大钢纤维掺量明显提升了试件弯曲性能,掺入2.0%钢纤维的UHPC与未掺纤维相比,其初裂挠度和抗折强度分别提升157.14%和148.63%; 当纤维含量为1.5%～2.0%时,试件具有良好的弯拉性能; 水胶比对曲线平台段趋势影响不大,纤维掺量大于1.0%时曲线具有较明显的应变硬化特征,可保证UHPC良好的抗拉性能,其应变硬化特征随着纤维掺量增大而变得更明显; 所提模型对UHPC受拉应力-应变关系具有较好的预测性。
Abstract:
The basic mix proportion of ultra-high performance concrete(UHPC)under normal temperature curing was determined based on the hydration reaction equation and the compact packing theory. Eight groups of UHPC flexural specimens were designed considering the water-binder ratio and steel fiber content based on the proportion.The bending failure mode, load-deflection curve, bending-tension characteristic parameters, and bending toughness of the specimens were analyzed by four-point bending tests. Based on the test results, the UHPC axial tension stress-strain curve was obtained by using the backward analysis method. The axial tension constitutive model considering fiber characteristics was proposed using regression analysis and validated at both material and component levels. The results show that the addition of steel fibers can suppress the development of main cracks, thereby significantly improve the bending toughness of UHPC. The bending toughness index of UHPC with 2.0% steel fiber content reaches 116.9 J. As the water cement ratio increases, the flexural strength and peak deflection of the specimen both show a decreasing trend. Increasing the steel fiber content can significantly improve the bending performance of the specimens. Compared with the specimens untreated by fibers, the initial crack deflection and flexural strength of UHPC with 2.0% steel fibers increased by 157.14% and 148.63% respectively. When the fiber content is between 1.5% and 2.0%, the specimen exhibits good flexural and tensile properties. The water cement ratio has little effect on the trend of the platform section of the curve. When the fiber content is greater than 1.0%, the curve has obvious strain hardening characteristics, which can ensure the good tensile performance of UHPC. The strain hardening characteristics become more obvious with the increase of fiber content. The proposed model has good predictive ability for the tensile stress-strain relationship of UHPC.

参考文献/References:

[1] WANG D H,SHI C J,WU Z M,et al.A review on ultra high performance concrete:part II.hydration,microstructure and properties[J].Construction and Building Materials,2015,96:368-377.
[2]余 睿,范定强,水中和,等.基于颗粒最紧密堆积理论的超高性能混凝土配合比设计[J].硅酸盐学报,2020,48(8):1145-1154.
YU Rui,FAN Dingqiang,SHUI Zhonghe,et al.Mix design of ultra-high performance concrete based on particle densely packing theory[J].Journal of the Chinese Ceramic Society,2020,48(8):1145-1154.
[3]陈宝春,韦建刚,苏家战,等.超高性能混凝土应用进展[J].建筑科学与工程学报,2019,36(2):10-20.
CHEN Baochun,WEI Jiangang,SU Jiazhan,et al.State-of-the-art progress on application of ultra-high performance concrete[J].Journal of Architecture and Civil Engineering,2019,36(2):10-20.
[4]BONNEAU O,POULIN C,DUGAT J,et al.Reactive powder concretes:from theory to practice[J].Concrete International,1996,18(4):47-49.
[5]DUGAT J,ROUX N,BERNIER G.Mechanical properties of reactive powder concretes[J].Materials and Structures,1996,29(4):233-240.
[6]邵旭东,李芳园,邱明红,等.钢纤维特性对UHPC轴拉性能与弯拉性能的影响及对比研究[J].中国公路学报,2020,33(4):51-64.
SHAO Xudong,LI Fangyuan,QIU Minghong,et al.Influential and comparative research on the effects of steel fiber properties on the axial tensile and bending tensile properties of UHPC[J].China Journal of Highway and Transport,2020,33(4):51-64.
[7]苏 捷,史才军,秦红杰,等.超高性能混凝土抗折强度尺寸效应[J].硅酸盐学报,2020,48(11):1740-1746.
SU Jie,SHI Caijun,QIN Hongjie,et al.Scale effect of flexural strength on ultra-high performance concrete[J].Journal of the Chinese Ceramic Society,2020,48(11):1740-1746.
[8]HASSAN A M T,JONES S W,MAHMUD G H.Experimental test methods to determine the uniaxial tensile and compressive behaviour of ultra high performance fibre reinforced concrete(UHPFRC)[J].Construction and Building Materials,2012,37:874-882.
[9]胡翱翔,梁兴文,于 婧,等.超高性能混凝土轴心受拉力学性能试验研究[J].湖南大学学报(自然科学版),2018,45(9):30-37.
HU Aoxiang,LIANG Xingwen,YU Jing,et al.Experimental study of uniaxial tensile characteristics of ultra-high performance concrete[J].Journal of Hunan University(Natural Sciences),2018,45(9):30-37.
[10]刘琼伟,邵旭东,邱明红,等.超高性能混凝土厚度对轴拉应力-应变-裂缝的影响[J].硅酸盐学报,2020,48(8):1168-1176.
LIU Qiongwei,SHAO Xudong,QIU Minghong,et al.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.
[11]郑文忠,李 莉.活性粉末混凝土配制及其配合比计算方法[J].湖南大学学报(自然科学版),2009,36(2):13-17.
ZHENG Wenzhong,LI Li.Preparation and mix proportion calculation of reactive powder concrete[J].Journal of Hunan University(Natural Sciences),2009,36(2):13-17.
[12]DINGER D R,FUNK J K.Particle-size analysis routines available on cerabull[J].American Ceramic Society Bulletin,1989,68(8):1406-1408.
[13]活性粉末混凝土:GB/T 31387—2015[S].北京:中国标准出版社,2015.
Reactive powder concrete:GB/T 31387—2015[S].Beijing:Standards Press of China,2015.
[14]李传习,聂 洁,潘仁胜,等.水胶比对超高性能混凝土施工与力学性能的影响[J].土木与环境工程学报(中英文),2020,42(4):164-174.
LI Chuanxi,NIE Jie,PAN Rensheng,et al.Effect of water-to-binder ratio on construction and mechanical properties of ultra-high performance concrete[J].Journal of Civil and Environmental Engineering,2020,42(4):164-174.
[15]徐翔波,于 泳,金祖权,等.养护制度对超高性能混凝土微观结构和力学性能影响的研究综述[J].硅酸盐通报,2021,40(9):2856-2870.
XU Xiangbo,YU Yong,JIN Zuquan,et al.Review on effects of microstructure and mechanical properties of ultra-high performance concrete by curing regimes[J].Bulletin of the Chinese Ceramic Society,2021,40(9):2856-2870.
[16]AKCAOGLU T,TOKYAY M,CELIK T.Assessing the ITZ microcracking via scanning electron microscope and its effect on the failure behavior of concrete[J].Cement and Concrete Research,2005,35(2):358-363.
[17]Standard test method for flexural performance of fiber-reinforced concrete(using beam with third-point loading):ASTM C1609/C1609M-05[S].West Conshohocken:ASTM,2012.
[18]张 哲,邵旭东,朱 平,等.基于超高性能混凝土弯曲拉伸特性的二次倒推分析法[J].土木工程学报,2016,49(2):77-86.
ZHANG Zhe,SHAO Xudong,ZHU Ping,et al.Twice inverse analysis method based on four-point bending test results for UHPC tensile behavior characterization[J].China Civil Engineering Journal,2016,49(2):77-86.
[19]过镇海.钢筋混凝土原理[M].3版.北京:清华大学出版社,2013.
GUO Zhenhai.Principle of reinforced concrete[M].3rd ed.Beijing:Tsinghua University Press,2013.
[20]原海燕.配筋活性粉末混凝土受拉性能试验研究及理论分析[D].北京:北京交通大学,2009.
YUAN Haiyan.Theoretical analysis and experimental research on tensile performance of reinforced reactive powder concrete[D].Beijing:Beijing Jiaotong University,2009.
[21]王俊颜,耿莉萍,郭君渊,等.UHPC的轴拉性能与裂缝宽度控制能力研究[J].哈尔滨工业大学学报,2017,49(12):165-169.
WANG Junyan,GENG Liping,GUO Junyuan,et al.Experimental study on crack width control ability of ultra-high performance concrete[J].Journal of Harbin Institute of Technology,2017,49(12):165-169.
[22]周 腾.单调及重复荷载作用下超高性能混凝土的受拉性能[D].长沙:湖南大学,2020.
ZHOU Teng.The tensile properties of ultra-high performance concrete under monotonic and cyclic loading[D].Changsha:Hunan University,2020.
[23]张 涛.配筋超高性能混凝土(UHPC)梁受弯性能数值模拟与试验分析[D].武汉:武汉理工大学,2020.
ZHANG Tao.Numerical simulation and experimental analysis of bending performance of reinforced ultra high performance concrete(UHPC)beams[D].Wuhan:Wuhan University of Technology,2020.
[24]马亚峰.活性粉末混凝土(RPC200)单轴受压本构关系研究[D].北京:北京交通大学,2006.
MA Yafeng.Study on constitutive relationship of 200 MPa reactive powder concrete under uni-axial compression[D].Beijing:Beijing Jiaotong University,2006.

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　CHEN Bao-chun,JI Tao,HUANG Qing-wei,et al.Review of Research on Ultrahigh Performance Concrete[J].Journal of Architecture and Civil Engineering,2014,31(03):1.
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备注/Memo

备注/Memo:
收稿日期:2023-05-11
基金项目:国家自然科学基金项目(52178505,51878543); 陕西省教育厅协同创新中心项目(23JY043); 陕西省自然科学基础研究计划项目(2020JM-487)
作者简介:梁 林(1996-),男,工学博士研究生,E-mail:lianglin1107@xauat.edu.cn。
通信作者:王秋维(1982-),女,工学博士,教授,博士生导师,E-mail:wqw0815@126.com。
更新日期/Last Update: 2024-05-20