Coupling Mechanism of Saturated Concrete Subjected to Simultaneous Fatigue Loading and Freeze-thaw Cycles  

作　　者：QIAO Yunfeng SUN Wei JIANG Jinyang PAN Dongfang 乔运峰;孙伟;JIANG Jinyang;PAN Dongfang(School of Material Science and Engineering, Southeast University;School of Civil Engineering, Qingdao Agriculture University)

机构地区：[1]School of Material Science and Engineering,Southeast University,Nanjing 211189,China [2]School of Civil Engineering,Qingdao Agriculture University,Qingdao 266109,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2018年第5期1121-1128,共8页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Major State Basic Research Development Program of China(No.2009CB623202);the National Natural Science Foundation of China(No.5107-8081)

摘　　要：The coupling mechanism of saturated concrete subjected to simultaneous 4-point fatigue loading and freeze-thaw cycles was, for the first time, experimentally studied by strain technology. The coupling strain, temperature strain and fatigue strain of concrete specimens were measured at the same time from one sample with stain analysis method and the relationship among these three kinds of strains was studied by fitting data to present coupling mechanism at macro level. The results showed that there was no interaction between fatigue strain and temperature strain and the coupling strain could be written by linear superposition of temperature strain and fatigue strain.The coupling mechanism of saturated concrete subjected to simultaneous 4-point fatigue loading and freeze-thaw cycles was, for the first time, experimentally studied by strain technology. The coupling strain, temperature strain and fatigue strain of concrete specimens were measured at the same time from one sample with stain analysis method and the relationship among these three kinds of strains was studied by fitting data to present coupling mechanism at macro level. The results showed that there was no interaction between fatigue strain and temperature strain and the coupling strain could be written by linear superposition of temperature strain and fatigue strain.

关 键 词：coupling mechanism fatigue loading freeze-thaw cycles strain saturated concrete 

分 类 号：TU528[建筑科学—建筑技术科学]