The effects of length and location of the steel corrosion on the structural behavior and load capacity
of reinforced concrete (RC) columns have been investigated. Results of the accelerated corrosion process and
eccentric load test are presented in detail. Effects of the location of the partial length, the corrosion level within
partial length and the asymmetrical deterioration of the concrete section on the mechanical behavior and load
capacity of corroded RC columns are discussed. It is found that the mechanical behavior and load carrying
capacity of corroded RC columns are simultaneously affected by the above mentioned factors. For the corroded RC
columns with large eccentricity, a higher corrosion level in the tensile corroded length and a greater asymmetrical
deterioration of the concrete section can result in less ductile behavior and larger load reduction of the column;
while for the corroded RC columns with small eccentricity, the less ductile behavior and the larger load reduction
of the column may result from the higher corrosion level in the compressive corroded length and the greater
asymmetrical deterioration of the concrete section.
WANG Xiao-hui1 (王小惠), LIU Xi-la1 (刘西拉), Deng Bao-ru2 (邓宝如)
. Effects of Length and Location of Steel Corrosion on the Behavior and Load Capacity of Reinforced Concrete Columns[J]. Journal of Shanghai Jiaotong University(Science), 2012
, 17(4)
: 391
-400
.
DOI: 10.1007/s12204-012-1297-6
[1] Torres-Acosta A A, Navarro-Gutierreza S, Ter′an-Guill′en J. Residual flexure capacity of corroded
reinforced concrete beams [J]. Engineering Structures, 2007, 29(6): 1145-1152.
[2] Azad A K, Ahmad S, Azher S A. Residual strength of corrosion-damaged reinforced concrete beams [J].
ACI Materials Journal, 2007, 104(1): 40-47.
[3] Higgins C, Farrow III W C. Tests of reinforced concrete beams with corrosion-damaged stirrups [J]. ACI
Structural Journal, 2006, 103(1): 133-141.
[4] Torres-Acosta A A, Fabela-Gallegos M J, Mu?noz-Noval A, et al. Influence of corrosion on the
structural stiffness of reinforced concrete beams [J].Corrosion, 2004, 60(9): 862-872.
[5] Ei Maaddawy T, Soudki K, Topper T. Long-term performance of corrosion-damaged reinforced concrete
beams [J]. ACI Structural Journal, 2005, 102(5): 649-656.
[6] Du Y, Clark L A, Chan A H C. Impact of reinforcement corrosion on ductile behavior of reinforced concrete
beams [J]. ACI Structural Journal, 2007, 104(3):285-293.
[7] Cairns J, Du Y, Law D. Structural performance of corrosion-damaged concrete beams [J]. Magazine of
Concrete Research, 2008, 60(5): 359-370.
[8] Rodriguez J, Ortega L M, Casal J. Load bearing capacity of concrete columns with corroded reinforcement
[C]//In Proceedings of the 4th SCI International Symposium on Corrosion of Reinforcement in
Concrete Construction. Cambridge, U.K.: Royal Society of Chemistry, 1996: 220-230.
[9] Shi Qing-xuan, Li Xiao-jian, Niu Di-tao, et al. Experimental study of bearing capacity of corroded reinforced
concrete eccentric compressive members [J].China Industrial Construction, 2001, 31(5): 14-17 (in Chinese).
[10] Wang X H, Liang F Y. Performance of RC columns with partial length corrosion [J]. Nuclear Engineering
and Design, 2008, 238(12): 3194-3202.
[11] Tapan M, Aboutaha R S. Strength evaluation of deteriorated RC bridge columns [J]. Journal of Bridge
Engineering, 2008, 13(3): 226-236.
[12] Mirza S A, Lacroix E A. Comparative study of strength-computation methods for rectangular reinforced
concrete columns [J]. ACI Structural Journal,2002, 99(4): 399-410.
