|本期目录/Table of Contents|

[1]祝金鹏,李术才,刘宪波,等.冻融环境下混凝土力学性能退化模型[J].建筑科学与工程学报,2009,26(01):62-67.
　ZHU Jin-peng,LI Shu-cai,LIU Xian-bo,et al.Mechanical Property Deterioration Model for Concrete in Environment with Freezing-thawing[J].Journal of Architecture and Civil Engineering,2009,26(01):62-67.
点击复制

冻融环境下混凝土力学性能退化模型(PDF)
分享到：

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
26卷
期数:
2009年01期
页码:
62-67
栏目:
出版日期:
2009-03-20

文章信息/Info

Title:
Mechanical Property Deterioration Model for Concrete in Environment with Freezing-thawing
作者:
祝金鹏1,李术才1,刘宪波2,刘敏2
1.山东大学岩土与结构工程研究中心,山东济南250061; 2.山东省公路桥梁建设有限公司,山东济南250014
Author(s):
ZHU Jin-peng1, LI Shu-cai1, LIU Xian-bo2, LIU Min2
1. Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, Shandong, China; 2. Shandong Road & Bridge Construction Co., Ltd., Jinan 250014, Shandong, China
关键词:
混凝土;  强度折减模型;  冻融循环;  细观数值模拟;  力学性能
Keywords:
concrete;  strength reduction model;  freezing-thawing cycle;  mesoscopic numerical simulation;  mechanical property
分类号:
TU375
DOI:
-
文献标志码:
A
摘要:
基于混凝土冻融试验和混凝土细观力学对混凝土冻融后的力学性能变化进行了研究,建立了混凝土随冻融循环次数变化的强度折减模型和弹性模量折减模型。在混凝土冻融试验方面,采用快速冻融方法对混凝土试件和根据混凝土配合比制成的砂浆试件进行了100、200、300次的冻融循环,利用大型混凝土静、动三轴试验系统检测了冻融循环对海水中混凝土抗压强度、弹性模量及应力-应变关系的影响; 在混凝土细观力学方面,对混凝土试件进行了数值模拟,为考虑各组成相的非均匀性,各组成相的材料性质按照Weibull分布来赋值,同时为反映冻融对混凝土的影响,砂浆的强度和弹性模量均以砂浆冻融试验所得结果为准。结果表明:该方法为进一步开展混凝土结构在冻融作用下的劣化机理与计算模型的研究提供了依据。
Abstract:
Based on the freezing-thawing test and micro-mechanics of concrete,the mechanical properties of concrete after freezing-thawing were studied, and the strength reduction model and elastic modulus reduction model were built with the changes of freezing-thawing cycles of concrete. In aspects of freezing-thawing test,the compressive tests of concrete specimens and mortar specimens which were made according to the ratio of concrete suffering 100, 200 and 300 cycles of freezing-thawing were completed. Using the large static-dynamic triaxial test system for concrete, the influences of cycles of freezing-thawing on the compressive strength of concrete, elastic moduli and stress-strain relationships were tested. In aspects of micro-mechanics,examination of the concrete specimen was numerically simulated. To consider the non-uniformity of the various components, the nature of the material of the various components was assigned in accordance with the Weibull distribution. In order to reflect the impact of freezing-thawing to concrete, the strength and elastic modulus of mortar specimens were both assigned according to the results of mortar freezing-thawing test. The results show that this method can offer references for further research on deterioration mechanism and calculation model of reinforced concrete structures in actions of freezing-thawing cycles.

参考文献/References:

[1] 覃丽坤,宋玉普,王玉杰,等.冻融循环对海水中混凝土抗压性能的影响[J].混凝土,2004(1):16-18. QIN Li-kun,SONG Yu-pu,WANG Yu-jie,et al.The Influence of Cycles of Freezing and Thawing on the Compressive Property of Concrete in Seawater[J].Concrete,2004(1):16-18.
[2]宋玉普,商怀帅,张 众,等.冻融循环后引气混凝土双轴破坏准则研究[J].工程力学,2007,24(6):134-141. SONG Yu-pu,SHANG Huai-shuai,ZHANG Zhong,et al.Investigation on Failure Criterion of Air-entrained Concrete Under Biaxial Loads After Freeze-thaw Cycles[J].Engineering Mechanics,2007,24(6):134-141.
[3]GOKCE A,NAGATAKI S,SAEKI T,et al.Freezing and Thawing Resistance of Air-entrained Concrete Incorporating Recycled CoarseAggregate:the Role of Air Content in Demolished Concrete[J].Cement and Concrete Research,2004,34(5):799-806.
[4]PENTTALA V,AL-NESHAWY F.Stress and Strain State of Concrete During Freezing and Thawing Cycles[J].Cement and Concrete Research,2002,32(9):1407-1420.
[5]夏晓舟,章 青,汤书军.混凝土细观损伤破坏过程的数值模拟[J].河海大学学报:自然科学版,2007,35(3):319-325. XIA Xiao-zhou,ZHANG Qing,TANG Shu-jun.Numerical Simulation of Meso-damage Process for Concrete Material[J].Journal of Hohai University:Natural Sciences,2007,35(3):319-325.
[6]李建波,林 皋,陈健云.混凝土损伤演化的随机力学参数细观数值影响分析[J].建筑科学与工程学报,2004,24(3):7-12. LI Jian-bo,LIN Gao,CHEN Jian-yun,et al.Mesoscopic Numerical Influence Analysis of Random Mechanical Parameter of Concrete Damage Evolution[J].Journal of Architecture and Civil Engineering,2004,24(3):7-12.
[7]唐春安,朱万成.混凝土损伤与断裂--数值试验[M].北京:科学出版社,2003. TANG Chun-an,ZHU Wan-cheng.Damage and Fracture of Concrete-Numerical Test[M].Beijing:Science Press,2003.
[8]过镇海.混凝土的强度和变形--试验基础和本构关系[M].北京:清华大学出版社,1997. GUO Zhen-hai.Strength and Distortion of Concrete-Test Basis and Constitutive Relationship[M].Beijing:Tsinghua University Press,1997.
[9]NAGAI K,SATO Y,UEDA T.Mesoscopic Simulation of Failure of Mortar and Concrete by 3D RBSM[J].Journal of Advanced Concrete Technology,2005,3(3):385-402.
[10]金伟良,徐 波,王海龙.混凝土材料的细观结构数值模拟与性能分析[J].建筑科学与工程学报,2008,25(4):19-22. JIN Wei-liang,XU Bo,WANG Hai-long.Numerical Simulation and Performance Analysis of Concrete Based on Material Mesostructures[J].Journal of Architecture and Civil Engineering,2008,25(4):19-22.
[11]申爱琴,朱建辉,王晓飞,等.聚合物改性超细水泥修补混凝土结构物微裂缝的性能及机理[J].中国公路学报,2006,19(4):46-51. SHEN Ai-qin,ZHU Jian-hui,WANG Xiao-fei,et al.Performance and Mechanism of Polymer Modified Superfine Cement for Microcrack Mending of Concrete Structure[J].China Journal of Highway and Transport,2006,19(4):46-51.
[12]宋焕生,赵祥模,王国强,等.混凝土结构层析成像检测系统[J].交通运输工程学报,2006,6(3):73-77. SONG Huan-sheng,ZHAO Xiang-mo,WANG Guo-qiang,et al.Ultrasonic-tomography System for Nondestructive Concrete Structure Testing[J].Journal of Traffic and Transportation Engineering,2006,6(3):73-77.
[13]金伟良,朱平华.混凝土结构耐久性的修复性等级划分[J].建筑科学与工程学报,2005,22(1):64-70. JIN Wei-liang,ZHU Ping-hua.Restorability Class Partition for Durability of Concrete Structure[J].Journal of Architecture and Civil Engineering,2005,22(1):64-70.
[14]马玉平,马 昕,崔建涛.高强度混凝土试验研究[J].建筑科学与工程学报,2005,22(3):67-69. MA Yu-ping,MA Xin,CUI Jian-tao.Experimental Research on High-strength Concrete[J].Journal of Architecture and Civil Engineering,2005,22(3):67-69.
[15]吴建营,李 杰.混凝土弹塑性损伤本构关系统一模型[J].建筑科学与工程学报,2005,22(4):15-21. WU Jian-ying,LI Jie.Unified Elasto-plastic Damage Constitutive Relations Model for Concrete[J].Journal of Architecture and Civil Engineering,2005,22(4):15-21.
[16]林 皋,李建波,赵 娟,等.单轴拉压状态下混凝土破坏的细观数值演化分析[J].建筑科学与工程学报,2007,24(1):1-6. LIN Gao,LI Jian-bo,ZHAO Juan,et a1.Mesoscopic Numerical Evolution Analysis of Concrete Damage Under Uniaxial Tension and Compression[J].Journal of Architecture and Civil Engineering,2007,24(1):1-6.

相似文献/References:

[1]单炜,张绍逸.BFRP筋与混凝土的粘结-滑移本构关系[J].建筑科学与工程学报,2013,30(02):15.
　SHAN Wei,ZHANG Shao-yi.[J].Journal of Architecture and Civil Engineering,2013,30(01):15.
[2]马志鸣,赵铁军,巴光忠,等.冻融环境下引气混凝土的抗钢筋锈蚀能力研究[J].建筑科学与工程学报,2014,31(03):85.
　MA Zhi-ming,ZHAO Tie-jun,BA Guang-zhong,et al.Study on Ability of Resistance to Steel Corrosion of Air Entraining Concrete Under Freezethaw Environment[J].Journal of Architecture and Civil Engineering,2014,31(01):85.
[3]李苹,任晓丹,李 杰.基于隐式梯度理论的混凝土细观随机断裂模型[J].建筑科学与工程学报,2014,31(03):90.
　LI Ping,REN Xiao-dan,LI Jie.Meso Stochastic Fracture Model for Concrete Based on Implicit Gradient Theory[J].Journal of Architecture and Civil Engineering,2014,31(01):90.
[4]翟 越,赵均海,艾晓芹,等.基于统一强度理论的巴西圆盘劈裂强度分析[J].建筑科学与工程学报,2015,32(03):46.
　ZHAI Yue,ZHAO Jun-hai,AI Xiao-qin,et al.Analysis on Splitting Strength of Brazilian Disc Based on Unified Strength Theory[J].Journal of Architecture and Civil Engineering,2015,32(01):46.
[5]王 钧,任靖豪,郭大鹏.短切玄武岩纤维混凝土基本力学性能的尺寸效应[J].建筑科学与工程学报,2015,32(05):96.
　WANG Jun,REN Jing-hao,GUO Da-peng.Size Effect of Basic Mechanical Properties of Chopped Basalt Fiber Reinforced Concrete[J].Journal of Architecture and Civil Engineering,2015,32(01):96.
[6]吴方伯,张 航,李 钧,等.不同箱体形式混凝土密肋空心楼盖受力性能试验[J].建筑科学与工程学报,2016,33(02):7.
　WU Fang-bo,ZHANG Hang,LI Jun,et al.Experiment on Mechanical Behavior of Concrete Hollow-ribbed Floor with Different Box[J].Journal of Architecture and Civil Engineering,2016,33(01):7.
[7]孙 昊,李继超,甘 丹.肋间距超限钢筋与混凝土间粘结强度试验[J].建筑科学与工程学报,2016,33(02):107.
　SUN Hao,LI Ji-chao,GAN Dan.Experiment on Bond Strength Between Steel and Concrete with Overrun Rib Spacing[J].Journal of Architecture and Civil Engineering,2016,33(01):107.
[8]乔宏霞,路承功,李 宇,等.宁夏盐渍土地区现场暴露混凝土耐久性损伤评价试验[J].建筑科学与工程学报,2016,33(06):44.
　QIAO Hong-xia,LU Cheng-gong,LI Yu,et al.Experiment on Durability Damage Assessment of Concrete Field Exposed in Saline Soil Area of Ningxia[J].Journal of Architecture and Civil Engineering,2016,33(01):44.
[9]肖 杰,屈文俊,朱 鹏.不同粗细骨料组合下的混凝土耐硫酸腐蚀研究[J].建筑科学与工程学报,2016,33(06):81.
　XIAO Jie,QU Wen-jun,ZHU Peng.Research on Concrete Sulfuric Acid Resistance with Different Types of Coarse and Fine Aggregates[J].Journal of Architecture and Civil Engineering,2016,33(01):81.
[10]刘汉昆,孙超,李杰.基于CT扫描的混凝土三维细观数值模拟[J].建筑科学与工程学报,2010,27(01):54.
　LIU Han-kun,SUN Chao,LI Jie.Three-demensional Mesoscopic Numerical Simulation of Concrete Based on CT Scan[J].Journal of Architecture and Civil Engineering,2010,27(01):54.

备注/Memo

备注/Memo:
收稿日期:2008-11-20
基金项目:国家自然科学基金项目(50574053); 山东省博士后创新项目(200703072)
作者简介:祝金鹏(1983-),男,山东淄博人,工学硕士研究生,E-mail:59267153@qq.com。
更新日期/Last Update: 2009-03-20