|Table of Contents|

Fatigue Strength Prediction of Recycled Aggregate ConcreteBased on Static Strength Distribution(PDF)

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

Issue:
2010年04期
Page:
7-13
Research Field:
Publishing date:
2010-12-20

Info

Title:
Fatigue Strength Prediction of Recycled Aggregate ConcreteBased on Static Strength Distribution
Author(s):
XIAO Jian-zhuang1;  LI Hong1;  QI Meng2
1. Department of Building Engineering, Tongji University, Shanghai 200092, China; 2. Anhui Province Chemical Industry Design Institute, Hefei 230009, Anhui, China
Keywords:
recycled aggregate concrete;  compressive strength;  fatigue strength;  normal distribution;  replacement percentage;  stress ratio
PACS:
TU528
DOI:
-
Abstract:
Based on the test results of a large number of recycled aggregate concrete(RAC)static compressive strength completed by the Recycled Concrete Materials and Structures Research Group of Tongji University, the distribution characteristic for the static compressive strength of recycled aggregate concrete was studied and the probability distribution of the fatigue life and the expression of compressive fatigue strength were proposed. The results of Pearson χ2 goodness of fitting show that the normal distribution model can be used to describe the probability distribution characteristics of the static compressive strength of RAC. Finally, the comparative analyses for fatigue strength of RAC under different stress ratios were made by the fatigue formula considered the influence about the mean and variance of axial compressive strength caused by different replacement percentages of the recycled coarse aggregate. The results show that with the increase of recycled coarse aggregate replacement percentage, the fatigue strength of recycled concrete shows a decreasing trend. According to this approach, axial compression fatigue strength with different fatigue lives and guaranteed rates can be estimated, which provide the basis for recycled concrete pavement design.

References:

[1] 肖建庄.再生混凝土[M].北京:中国建筑工业出版社,2008.XIAO Jian-zhuang.Recycled Aggregate Concrete[M].Beijing:China Architecture & Building Press,2008.
[2]肖建庄,刘 琼,李文贵,等.再生混凝土细微观结构和破坏机理研究[J].青岛理工大学学报,2009,30(4):24-30.XIAO Jian-zhuang,LIU Qiong,LI Wen-gui,et al.On the Micro-and Meso-structure and Failure Mechanism of Recycled Concrete[J].Journal of Qingdao Tech-nological University,2009,30(4):24-30.
[3]王瑞敏,宋玉普,赵国藩.混凝土疲劳破坏的概率分析[J].大连理工大学学报,1991,31(3):331-336.WANG Rui-min,SONG Yu-pu,ZHAO Guo-fan.Probability Analysis of Fatigue Damage of Plain Concrete[J].Journal of Dalian University of Technology,1991,31(3):331-336.
[4]肖建庄,李佳彬,孙振平,等.再生混凝土的抗压强度研究[J].同济大学学报:自然科学版,2004,32(12):1558-1561.XIAO Jian-zhuang,LI Jia-bin,SUN Zhen-ping,et al.Study on Compressive Strength of Recycled Aggregate Concrete[J].Journal of Tongji University:Nat-ural Science,2004,32(12):1558-1561.
[5]张亚梅,秦鸿根,孙 伟,等.再生混凝土配合比设计初探[J].混凝土与水泥制品,2002(1):7-9.ZHANG Ya-mei,QIN Hong-gen,SUN Wei,et al.Preliminary Study on the Proportion Design of Recycled Aggregate Concrete[J].China Concrete and Cement Products,2002(1):7-9.
[6]李佳彬,肖建庄,孙振平.再生粗骨料特性及其对再生混凝土性能的影响[J].建筑材料学报,2004,7(4):390-395.LI Jia-bin,XIAO Jian-zhuang,SUN Zhen-ping.Properties of Recycled Coarse Aggregate and Its Influence on Recycled Concrete[J].Journal of Building Mater-ials,2004,7(4):390-395.
[7]李佳彬.再生混凝土基本力学性能研究[D].上海:同济大学,2004.LI Jia-bin.Study on Mechanical Behavior of Recycled Aggregate Concrete[D].Shanghai:Tongji Univer-sity,2004.
[8]潘承毅,何迎晖.数理统计的原理与方法[M].上海:同济大学出版社,1991.PAN Cheng-yi,HE Ying-hui.Principles and Methods of Mathematical Statistics[M].Shanghai:Tongji University Press,1991.
[9]徐钟济.蒙特卡罗方法[M].上海:上海科学技术出版社,1985.XU Zhong-ji.Monte Carlo Method[M].Shanghai:Shanghai Science and Technology Press,1985.
[10]吴佩刚,赵光仪,白利明.高强混凝土抗压疲劳性能研究[J].土木工程学报,1994,27(3):33-40.WU Pei-gang,ZHAO Guang-yi,BAI Li-ming.Fatigue Behavior of High Strength Concrete Under Compressive Cyclic Loading[J].China Civil Engineering Journal,1994,27(3):33-40.
[11]肖建庄,杜 锋,陈德银.高性能混凝土轴心抗压静载与疲劳强度[J].建筑材料学报,2005,8(6):605-608.XIAO Jian-zhuang,DU Feng,CHEN De-yin.Research on Static and Fatigue Axial Strength of HPC Under Compression[J].Journal of Building Mater-ials,2005,8(6):605-608.

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Last Update: 2010-12-20