Research and Application on Hydration Characteristics of Concrete Based on a Fixed Multi-field Coupling Model

2018 International Conference on Civil and Hydraulic Engineering

土木建筑工程;水利工程

Lu, Chunpeng^1 ; Liu, Xinghong^2 ; Liu, Haojie^1 ; Feng, Chuqiao^1

School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, Hubei

430072, China^1

School of Civil Engineering, Wuhan University, Wuhan, Hubei

430072, China^2

关键词: Concrete gravity dams;    Concrete hydration;    Concrete properties;    Engineering practices;    Hydration characteristics;    Multi-field coupling models;    Research and application;    Temperature stress;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/3/032039/pdf
DOI  :  10.1088/1755-1315/189/3/032039

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Although a lot of researches about temperature-stress and crack of mass concrete have been published, there are still many work on crack control to be improved. At present, due to the development of a general chemo-thermos coupled model for hydration of concrete, multi-field coupled method has been a hot topic in the field of studying the evolution of concrete properties. Therefore, in this paper, a chemo-thermos- mechanical coupled model of concrete hydration is developed and applied to the finite element analysis. Through this method, the temperature-stress of concrete gravity dam encountering cold wave are studied. The settlement results show that this method is more consistent with engineering practice than traditional methods, and can provide reference for construction and design.