Simulation analysis of thermal stress of RCC dams using 3-D finite element relocating mesh method

Chen, Yaolong, Wang, Changjiang, Li, Shouyi, Wang, Ruijun and He, Jing (2001) Simulation analysis of thermal stress of RCC dams using 3-D finite element relocating mesh method. Advances in Engineering Software, 32 (9). pp. 677-682. ISSN 0965-9978

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Abstract

The 3-D finite element relocating mesh method is developed for simulation analysis of temperature and thermal stress distribution in a roller compacted concrete dam during the construction period. According to the relation between specific properties and age of concrete, some meshes are merged into a larger mesh or a few larger meshes when the age of the concrete is appropriate. Using this method, the total number of elements and nodes were remarkably reduced when the dam height was increased. When the change in elastic modulus, creeps and hydration heat is within the limits permitted by design criteria, the relocating of mesh will start. Using this method, a 3 D simulation analysis of thermal stress in a roller compacted concrete (RCC) high dam can be realized by microcomputer and appeared at the construction site. On the basis of real factors during the construction period, an engineer can predict the distribution of temperature and thermal stress in the RCC dam. Therefore, engineers can take appropriate measures to control the concrete temperature to reduce the thermal stress and avoid crack development within the dam.

Item Type: Article
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Depositing User: Chang Wang
Date Deposited: 03 Oct 2013 15:54
Last Modified: 03 Oct 2013 15:54
URI: http://sro.sussex.ac.uk/id/eprint/46571
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