Fatigue performance of composite concrete structure specimen (CCS) in flexure
Fatigue performance of composite concrete structure specimen (CCS) in flexure
复制标题
复合混凝土结构试件(CCS)的弯曲疲劳性能
DOI:
10.1080/15376494.2018.1484530
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发表时间:
2020-04
影响因子:
2.8
通讯作者:
Liu zhen-nan
中科院分区:
文献类型:
--
作者:
Xu Gui-hong;Fang dong;Liu zhen-nan
Abstract The paper presents a study on the fatigue behavior of composite concrete specimen (CCS). An experimental program was conducted to obtain the fatigue-behavior of CCS at various stress ratios. Fifty-six CCS specimens of size were tested under four-point flexural fatigue loading. To evaluate the mechanical properties of the interface between CA mortar and concrete materials, a surface analysis technique of scanning electron microscopy (SEM) observation was used in this study. Parallel with the SEM observations, the pore size distribution of CA mortar was studied by using BJH method. It is found that there exist obvious differences of flexural fatigue behavior between CCS and plain concrete specimens. According to the theory of material mechanics, the formula of dynamic elastic modulus in flexure is deduced. Based on the experimental results, the formula of dynamic elastic modulus and analysis of fatigue strain, the fatigue cumulative damage evolution equation is proposed.
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影响因子:
5.5
作者:
Carlos Sousa;João Francisco Rocha;R. Calçada;A. S. Neves
通讯作者:
Carlos Sousa;João Francisco Rocha;R. Calçada;A. S. Neves
DOI:
--
发表时间:
2012
期刊:
China Railway Science
影响因子:
--
作者:
Cai Chengbiao
通讯作者:
Cai Chengbiao
影响因子:
--
作者:
S. Alexandrov;Y. Erisov;F. Grechnikov
通讯作者:
S. Alexandrov;Y. Erisov;F. Grechnikov
影响因子:
4.6
作者:
Zhu ShengYang;Fu Qiang;Spanos, Pol D.
通讯作者:
Spanos, Pol D.
影响因子:
7.4
作者:
Liu Feng;Meng Liang-Yu;Li Li-Juan
通讯作者:
Li Li-Juan