Simulation on Expanding Crack of Reinforced Concrete Based on Franc2d

Abstract:

It is a key point of durability deterioration to reinforced concrete structures that protective layer concrete cracking, so it is essential to assess the durability limit state to determine the critical corrosive ratio. In this paper the Franc2D tool has been used to simulate the corrosive expanding process of protective layer concrete in reinforced concrete structure, and the slope change of the ρ-CMOD curve has been used as the basis to determine the critical corrosive ratio, then the effects of stirrups to critical corrosive ratio and the corrosive expanding crack width has been studied. It has been showed a linear relationship between the corrosive ratio and crack width, and appearance of corrosive expanding cracks has been delay with the stirrups, on the other hand crack propagation speed can be reduced with the stirrups across cracks effectively.

• Periodical: Applied Mechanics and Materials (Volumes 105-107)
• Pages: 1027-1030
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.105-107.1027
• Online since: September 2011
• Authors: Yue Shun Chen, Li Liu
• Keywords: Corrosive Expanding Crack, Reinforced Concrete Structure, Simulation Analysis

References

[1] D.V. Val, P.A. Trapper, Probabilistic evaluation of initiation time of chloride-induced corrosion,Reliability Engineering & System Safety.93(2008)364-372.

DOI: 10.1016/j.ress.2006.12.010

[2] M.Y. Harikrishna L.C. Narasimhan, Integration of durability with structural design-An optimal life cycle cost based design procedure for reinforced concrete structures,Construction and Building Materials.23(2009)918–929.

DOI: 10.1016/j.conbuildmat.2008.04.016

[3] R.E. Melchers C.Q.Li, W.Lawanwisut, Probabilistic modeling of structural deterioration of reinforced concrete beams under saline environment corrosion,Structural Safety.30(2008)447-460.

DOI: 10.1016/j.strusafe.2007.02.002

[4] D.V. Val, Deterioration of Strength of RC Beams due to Corrosion and Its Influence on Beam Reliability,Journal of Structural Engineering.133(2007)1297-1306.

DOI: 10.1061/(asce)0733-9445(2007)133:9(1297)

[5] C.Q.Li, W.Lawanwisut, J.J. Zheng, Time-Dependent Reliability Method to Assess the Serviceability of Corrosion-Affected Concrete Structures,Journal of Structural Engineering. 131(2005)1674-1680.

DOI: 10.1061/(asce)0733-9445(2005)131:11(1674)

[6] K.A.Vu, M.G. Stewart, Structural reliability of concrete bridges including improved chloride-induced corrosion models,Structural Safety.22(2000)313-333.

DOI: 10.1016/s0167-4730(00)00018-7

[7] J.S. Kong A.N. Ababneh D.M. Frangopoland,Y. Xi, Reliability analysis of chloride penetration in saturated concrete,Probabilistic Engineering Mechanics.17(2002)305-315.

DOI: 10.1016/s0266-8920(02)00014-0

[8] M.L. Allan, Probability of corrosion induced cracking in reinforced concrete,Cement and Concrete Research.25(1995)1179-1190.

DOI: 10.1016/0008-8846(95)00110-x