Analysis on Cracking Cause and Propagation Trend of Concrete Dam

Qin Chen; Ya Qi Gong; Yong Feng Qi

doi:10.4028/www.scientific.net/AMM.444-445.831

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 444-445Analysis on Cracking Cause and Propagation Trend...

Analysis on Cracking Cause and Propagation Trend of Concrete Dam

Abstract:

Some cracks are observed in a heightening project of a concrete gravity. In order to investigate and solve this problem, the three-dimensional finite element simulation and nonlinear cracking analysis are implemented in this paper to analyze the causes of cracks and their propagation trends. This work is helpful to design the proper crack controlling plans. The research shows that large tensile stress has accumulated during construction, especially after an early air temperature sudden drop in November, the tensile stress increases 3MPa in general on the concrete surface, which exceeds the tensile strength of concrete and causes cracking. Therefore, the crack is the result of both the accumulated temperature stress during construction and temperature sudden drop. The crack will further propagate during another temperature sudden drop, but extended range is limited. If concrete tensile strength is greater than 2.5MPa, the cracks will not penetrate throughout the dam body along the water flow direction.

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Periodical:

Applied Mechanics and Materials (Volumes 444-445)

Pages:

831-835

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.444-445.831

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Online since:

October 2013

Authors:

Qin Chen, Ya Qi Gong, Yong Feng Qi

Keywords:

Concrete Dam, Cracking Cause, Propagation Trend, Simulation Analysis

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References

[1] Bofang Zhu, Thermal stresses and temperature control of mass concrete M. Press of China Electric Power, Beijing, (1999).

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[2] Jianjing Jiang, Nonlinear Finite Element Analysis of Reinforced Concrete Structure (Shanxi Science and Technology Press, China 1994).

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[3] Qin Chen, Application and Secondary Development for MARC in Cracking Analysis of Reinforced Concrete Structures (Wuhan University, China 2003).

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[4] Qin Chen, Shaozhong Lin, Three-dimensional Nonlinear Finite-Element Analysis on Directly Embedded Spiral Case Model of TGP Hydroelectric Power Plant[J]. Journal of Yangtze River Scientific Research Institute, 2007, 24(2): pp.51-54. (in Chinese).

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