基于弹性模量的再生混凝土疲劳强度分析  

On Fatigue Strength of Recycled Aggregate Concrete Based on Its Elastic Modulus

作　　者：李宏[1] 肖建庄[1,2] 

机构地区：[1]同济大学建筑工程系,上海200092 [2]同济大学先进土木工程材料教育部重点实验室,上海201804

出　　处：《建筑材料学报》2012年第2期260-263,273,共5页Journal of Building Materials

基　　金：教育部新世纪优秀人才支持计划(NCET-06-0383);"十一五"国家科技支撑计划项目(2008BAK48B03)

摘　　要：通过试验与分析,建立了再生混凝土弹性模量与其疲劳强度的回归公式,结果表明:由该回归公式计算出的再生混凝土受压疲劳强度与试验结果接近,可用来预测再生混凝土的受压疲劳强度,并指导工程实践;初步验证了GB 50010—2002《混凝土结构设计规范》中普通混凝土受压疲劳强度的取值方法对再生混凝土同样适用.Based on the experiments and analysis, the relationship between the elastic modulus and the fatigue strength of recycled aggregate concrete（RAC） was established. The compressive fatigue strength calculated according to the formula suggested by this investigation is close to the experimental results, a reliable prediction for the compressive fatigue strength of RAC can be used to guide the engineering practice. And it is confirmed from this study that the method in code for GB 50010-2002 （Design of Concrete Structures） is suitable for the calculation of the compressive fatigue strength of RAC.

关 键 词：再生混凝土 受压 弹性模量 疲劳强度 

分 类 号：TU528[建筑科学—建筑技术科学]