Research on Bending Resistance of Corroded RC Beams

Abstract:

Experiments have been finished for the bending resistance of 4 corroded RC beams with different corrosion degree and sustained load. From test results, the main conclusions are summarized as follows: when the anchoring situation is good, the local steel corrosion has no remarkable effect on the flexural capacity on normal section; even if the crack width reached 1.8mm along bars, the failure type has no change, still the flexural bending failure on normal section; the remained flexural capacity can be calculated based on the formula of uncorroded beam, if only considering the decrease of effective area and mechanical property for corroded steel bar; the degradation of local bond behavior has no clear influence on the bending resistance of RC members.

• Periodical: Advanced Materials Research (Volumes 163-167)
• Pages: 3292-3296
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.163-167.3292
• Online since: December 2010
• Authors: Qing Wang, Gang Xu, Gui Ling Liang, Jun Wei
• Keywords: Bending Resistance, Corroded Steel Bar, Mechanical Property, Sustained Load

References

[1] H.S. Lee, F. Tomosawa and T. Noguchi: Durab. Build. Mater. Compon. Vol. 7 (1996), p.571.

[2] Y.L. Hui, R. Li, Z.S. Lin and M.Y. Qua: Industrial Construction. Vol. 27(1997), p.14(In Chinese).

[3] J. Rodriguez, L .M. Ortega and J. Casal: Construction and Materials. Vol. 11(1997), p.239.

[4] W.L. Jin and Y.X. Zhao: Industrial Construction. Vol. 31(2001), p.9(In Chinese).

[5] Y.S. Yuan F.P. Jia and Y. Cai: China Civil Engineering Journal. Vol. 34(2001), p.47(In Chinese).

[6] S.Q. He and J.X. Gong: Journal of Southeast University. Vol. 34(2004), p.474(In Chinese).

[7] S. Arnold, P. Fleming and S. Austin: Cement and Concrete Research. Vol. 35(2005), p.2371.

[8] W.J. Yi and X. Zhao: China Civil Engineering Journal. Vol. 39 (2006), p.7(In Chinese).

[9] Q. Wu, Y. S. Yuan and J.Y. Li: Journal of China University of Mining and Technology. Vol. 36 (2007), p.44(In Chinese).

[10] X.H. Wang and X.L. Liu: Sichuan Building Science. Vol. 33(2007), p.56(In Chinese).

[11] Q. Wang, G. Xu and C.Y. Huang: Sichuan Building Science. Vol. 34(2008), p.10(In Chinese).

[12] B. Sun, D.T. Niu and Q.L. Wang: China Civil Engineering Journal. Vol. 41 (2008), p.1(In Chinese).

[13] J.X. Gong, W.W. Wei and S.C. Zhao: Basic theory and application of modern concrete structure(China Architecture and Building Press, BeiJing 2009) (In Chinese).