Mustafa KOÇER, Murat ÖZTÜRK, Ahmet Raif BOĞA

Analytical Study on the Effect of Corrosion to the Construction Performance

Corrosion is one of the most important factor to achieve in completing the service life of reinforced concrete structures also cause significant losses in energy damping capacities of structures. In this study, the reinforced concrete column designed in ½ geometrical scale was subjected to accelerated corrosion test for 26.5 days under 1 ampere constant current. As a result of the experiment, weight loss and strength reductions was obtained. Loss of strength in reinforcement due to corrosion damage was obtained with experimental procedure. Loss of cross section and reduction of compressive strength of concrete were obtained with empirical formulas in the literature. Thanks to this data, 3 different scenarios applied on a sample building in Hatay province. Static pushover analyzes of the sample building designed in accordance with the regulations were carried out with Sap 2000 program under the specified corrosion scenarios. The load-displacement curves obtained by the scenarios are compared with the curves of the reference building. As a result of the comparisons, it was observed that corrosion damage caused significant loss in horizontal load carrying capacity of the building. The corrosion scenarios show that corrosion in columns or beams changes collapse modes of the structure.

Keywords:

Corrosion Static Pushover Analysis, Accelerated Corrosion, Reinforced Concrete Column,

PDF

___

Baradan, B., & Aydın, S. (2013). Betonun Durabilitesi (Dayanıklılık, Kalıcılık). Beton 2013 Hazır Beton Kongresi, 265-288.
Berke, N., Bentur, A., & Diamond, S. (2014). Steel corrosion in concrete: fundamentals and civil engineering practice. CRC Press.
Berto, L., Saetta, A., & Simioni, P. (2008). Nonlinear static analyses of RC frame structures: influence of corrosion on seismic response. Proceedings of the 8th WCCM8—5th ECCOMAS.
Cape M. (1999). Residual service-life assessment of existing R/C structures, MS thesis, Chalmers University of Technology, Goteborg (Sweden) and Milan University of Technology, Italy, Erasmus Program; p. 133.
CSI SAP 2000 V-19. (2013), Integrated Finite Element Analysis and Design of Structures Basic Analysis Reference Manual Computer and Structures Inc., Berkeley, California.
FEMA-356, (2000). Prestandard and commentary for seismic rehabilitation of buildings, Washington DC.
Yalciner, H., Sensoy, S., & Eren, O. (2012). Effect of corrosion damage on the performance level of a 25-year-old reinforced concrete building. Shock and Vibration, 19(5), 891-902.
Yalciner, H., Sensoy, S., & Eren, O. (2012). Time-dependent seismic performance assessment of a single-degree-of-freedom frame subject to corrosion. Engineering Failure Analysis, 19, 109-122.
Ma, Y., Che, Y., & Gong, J. (2012). Behavior of corrosion damaged circular reinforced concrete columns under cyclic loading. Construction and Building Materials, 29, 548-556.
Rodriguez J., and Andrade C. (2001). CONTECVET: a validated user’s manual for assessing the residual service life of concrete structures, GEOCISA, Madrid, Spain.
TEC-2007, (2007). Turkish Earthquake-resistant Code, Specification for Buildings to Be Built in Seismic Zones, Ministry of Public Works And Settlement, Ankara, Turkey. (In Turkish)
Yang, S. Y., Song, X. B., Jia, H. X., Chen, X., & Liu, X. L. (2016). Experimental research on hysteretic behaviors of corroded reinforced concrete columns with different maximum amounts of corrosion of rebar. Construction and Building Materials, 121, 319-327.
Yuksel, I., & Coskan, S. (2013). Earthquake response of reinforced concrete frame structures subjected to rebar corrosion. Earthquakes and Structures, 5(3), 321-341.