Research on the Crack Stability of Dam Concrete Based on the Measured Monitoring Data

Author:

Guan Jun Feng1,Hu Yu2,Zhao Shun Bo1,Qing Long Bang2,Li Qing Bin3,Zhang Li Hong2,Luo Dan Ni2

Affiliation:

1. North China Institute of Water Conservancy and Hydroelectric Power

2. Tsinghua University

3. Tsinghua Universtiy

Abstract

This paper proposes a theoretical expression for the ultimate relationship between the crack gauge monitoring data and steel stress gauge ones in dam concrete, based on the equation for crack width of reinforced concrete member, when the cracks expanded to the crack-control steel. In addition, a practical method is developed for analyzing and determining the crack stability of dam concrete, which predicts whether a crack elongated to the crack-control steel or not by comparing the observed values to the theoretical ultimate value. The provided method is proven to be proper to evaluate the crack stability of dam, which is simple and practical.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference16 articles.

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2. J. Mai, H. Li and W. Pei: Journal of Hydroelectric Engineering, No. 2, Vol. 21(2002), pp.31-36. (In Chinese).

3. G. Ma, X. Chang: Journal of China Three Gorges University (Natural Sciences), No. 4, Vol. 31(2009), pp.31-36. (In Chinese).

4. X. Chang,F. You and M. Li: Engineering Journal of Wuhan University, No. 5, Vol. 41(2008), pp.26-30. (In Chinese).

5. S.C. Yang, L. Song and H. J. Liao: Key Engineering Materials, Vol. 261-263(2004), pp.57-62.

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