TY - GEN
T1 - Structural behaviour of beams under simultaneous load and steel corrosion
AU - Malumbela, G.
AU - Moyo, P.
AU - Alexander, M.
PY - 2009
Y1 - 2009
N2 - This paper presents the results of an experimental study conducted to characterize the structural behaviour of beams corroded whilst subjected to a constant sustained load. Corrosion on tensile steel bars was induced by an accelerated corrosion process using a 5% solution of NaCl and a constant impressed current. Four RC beams were tested, each with a width of 153 mm, a depth of 254 mm and a length of 3000 mm. Beams were tested whilst under self-weight, under 10% of the ultimate load and under 33% of the ultimate load. Longitudinal tensile strains and longitudinal compressive strains were monitored during the corrosion process. Measured strains were used to determine the depth of the neutral axis, the curvature and the moment of inertia of beams. The results indicate that the longitudinal strains, depth of the neutral axis and curvature depend on both the level of corrosion and the applied load whilst the moment of inertia only depends on the level of corrosion.
AB - This paper presents the results of an experimental study conducted to characterize the structural behaviour of beams corroded whilst subjected to a constant sustained load. Corrosion on tensile steel bars was induced by an accelerated corrosion process using a 5% solution of NaCl and a constant impressed current. Four RC beams were tested, each with a width of 153 mm, a depth of 254 mm and a length of 3000 mm. Beams were tested whilst under self-weight, under 10% of the ultimate load and under 33% of the ultimate load. Longitudinal tensile strains and longitudinal compressive strains were monitored during the corrosion process. Measured strains were used to determine the depth of the neutral axis, the curvature and the moment of inertia of beams. The results indicate that the longitudinal strains, depth of the neutral axis and curvature depend on both the level of corrosion and the applied load whilst the moment of inertia only depends on the level of corrosion.
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M3 - Conference contribution
AN - SCOPUS:79952288898
SN - 9780415468503
T3 - Concrete Repair, Rehabilitation and Retrofitting II - Proceedings of the 2nd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR
SP - 253
EP - 254
BT - Concrete Repair, Rehabilitation and Retrofitting II - Proceedings of the 2nd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR
T2 - 2nd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR 2008
Y2 - 24 November 2008 through 26 November 2008
ER -