Title:
Seismic Flexural Strength of Reinforced Concrete Columns Corroded by Saline Soil
Author(s):
Chang-wang Yan, Jian-jun Zhao, Shu-guang Liu, and Ju Zhang
Publication:
Structural Journal
Volume:
118
Issue:
2
Appears on pages(s):
127-138
Keywords:
axial compression ratio; corrosion rate; reinforced concrete (RC) column; saline soil environment; seismic flexural strength
DOI:
10.14359/51729355
Date:
3/1/2021
Abstract:
To study the seismic flexural strength of reinforced concrete (RC) column in saline soil environment, 14 inverted T-shaped RC bridge pier columns were designed and fabricated. The electrochemical corrosion test and low-cycle repeated loading test were carried out on the specimens. The damage form of the studied specimens was observed, and effects of axial compression ratio and corrosion rate on the seismic flexural strength is studied. The theoretical model of seismic flexural strength is established. The results show that when the axial compression ratio is constant, the corrosion rate of the specimen is larger and the seismic flexural strength is smaller. When the corrosion rate is constant and the axial compression ratio is within a certain range, the seismic flexural strength of the specimen increases as the axial compression ratio increases. In addition, the accuracy of the theoretical model is verified by comparing with the test results. The study results provide a reference for seismic design of columns in saline soil environment.
Related References:
1. Xin, N.; Yu-Hang, W.; Shuo, L.; and Ju, C., “Coupled Bending-Shear-Torsion Bearing Capacity of Concrete Filled Steel Tube Short Columns,” Thin-Walled Structures, V. 123, 2018, pp. 305-316. doi: 10.1016/j.tws.2017.11.026
2. Li, Z.; Chen, Y.; and Wang, W., “Experimental Research on Bending and Shearing Behavior of Middle and Short Concrete Filled Steel Tubular Columns,” Journal of Building Structures, V. 36, No. 7, 2015, pp. 1-9. (in Chinese)
3. Chen, X.; Ding, M.; Zhang, X.; Liu, Z.; and Ma, H., “Experimental Investigation on Seismic Retrofit of Gravity Railway Bridge Pier with CFRP and Steel Materials,” Construction and Building Materials, V. 182, 2018, pp. 371-384. doi: 10.1016/j.conbuildmat.2018.06.102
4. Seleem, H. E. H.; Rashad, A. M.; and El-Sabbagh, B. A., “Durability and Strength Evaluation of High-Performance Concrete in Marine Structures,” Construction and Building Materials, V. 24, No. 6, 2010, pp. 878-884. doi: 10.1016/j.conbuildmat.2010.01.013
5. Othmen, I.; Bonnet, S.; and Schoefs, F., “Statistical Investigation of Different Analysis Methods for Chloride Profiles Within a Real Structure in a Marine Environment,” Ocean Engineering, V. 157, 2018, pp. 96-107. doi: 10.1016/j.oceaneng.2018.03.040
6. Darmawan, M. S., and Stewart, M. G., “Spatial Time-Dependent Reliability Analysis of Corroding Pretensioned Prestressed Concrete Bridge Girders,” Structural Safety, V. 29, No. 1, 2007, pp. 16-31. doi: 10.1016/j.strusafe.2005.11.002
7. Deng, P.; Zhang, C.; Pei, S.; and Jin, Z., “Modeling the Impact of Corrosion on Seismic Performance of Multi-Span Simply-Supported Bridges,” Construction and Building Materials, V. 185, 2018, pp. 193-205. doi: 10.1016/j.conbuildmat.2018.07.015
8. Ou, Y., and Nguyen, N. D., “Influences of Location of Reinforcement Corrosion on Seismic Performance of Corroded Reinforced Concrete Beams,” Engineering Structures, V. 126, 2016, pp. 210-223. doi: 10.1016/j.engstruct.2016.07.048
9. Li, J. B.; Gong, J.; and Wang, L., “Seismic Behavior of Corrosion-Damaged Reinforced Concrete Columns Strengthened Using Combined Carbon Fiber-Reinforced Polymer and Steel Jacket,” Construction and Building Materials, V. 23, No. 7, 2009, pp. 2653-2663. doi: 10.1016/j.conbuildmat.2009.01.003
10. Šomodíková, M.; Lehky, D.; Dolezel, J.; and Novák, D., “Modeling of Degradation Processes in Concrete: Probabilistic Lifetime and Load-Bearing Capacity Assessment of Existing Reinforced Concrete Bridges,” Engineering Structures, V. 119, 2016, pp. 49-60. doi: 10.1016/j.engstruct.2016.03.065
11. Berto, L.; Vitaliani, R.; Saetta, A.; and Simioni, P., “Seismic Assessment of Existing RC Structures Affected by Degradation Phenomena,” Structural Safety, V. 31, No. 4, 2009, pp. 284-297. doi: 10.1016/j.strusafe.2008.09.006
12. Berto, L.; Saetta, A.; and Simioni, P., “Structural Risk Assessment of Corroding RC Structures under Seismic Excitation,” Construction and Building Materials, V. 30, No. 5, 2012, pp. 803-813. doi: 10.1016/j.conbuildmat.2011.12.039
13. Zhao, Y.; Xia, W.; and Qiao, D., “Comparative Analysis of Chloride Ion Erosion Concrete in Saline Soil and Marine Environment,” Journal of Highway and Transportation Research and Development, V. 8, No. 12, 2012, pp. 290-293. (in Chinese)
14. Lv, Q.; Jiang, L.; Ma, B.; Zhao, B.; and Huo, Z., “A Study on the Effect of the Salt Content on the Solidification of Sulfate Saline Soil Solidified with an Alkali-Activated Geopolymer,” Construction and Building Materials, V. 176, No. 10, 2018, pp. 68-74. doi: 10.1016/j.conbuildmat.2018.05.013
15. Zhou, G.; Li, S.; and Wang, Z., “Investigation and Analysis on Corrosion Situation of Concrete in Saline Soil Region,” Jianzhu Kexue Yu Gongcheng Xuebao, V. 28, No. 4, 2011, pp. 121-126. (in Chinese)
16. Xie, Y.; Weng, X.; and Zhang, J., “Study on Salt-Frost Erosion of Pavement Concrete in Salty Soil Area,” Journal of Highway and Transportation Research and Development, V. 34, No. 4, 2017, pp. 25-31. (in Chinese)
17. Yu, H. F.; Sun, W.; Wang, J. C.; Yan, L. H.; Qu, W.; and Wei, Z. Y., “Circumstance of Salt Lakes and the Durability of Concrete or Reinforced Concrete,” Industrial Construction, V. 33, No. 3, 2003a, pp. 1-4. (in Chinese)
18. Sun, H.; Fu, Y.; and Lu, C., “Present Situation of Corrosion and Protection of Buildings in Saline Soil and Salt Lake Environments,” Corrosion and Protection, V. 33, No. 8, 2012, pp. 652-657. (in Chinese)
19. Yu, H. F.; Sun, W.; and Wang, J., “On Attack Product and Corrosion Mechanism of Ordinarily Concrete After Long-Term Exposure to Salt Lake,” Journal of the Chinese Ceramic Society, V. 31, No. 5, 2003b, pp. 434-440. (in Chinese)
20. Liu, L. X.; Zhang, W. Q.; and Dai, D. H., “Engineering Practice and Test Study of Resisting Saline Soil Corrosion Concrete,” Journal of Qinghai University, V. 22, No. 6, 2004, pp. 31-36. (in Chinese)
21. Zhang, W. Q.; Liu, L. X.; Wang, P. L.; and Huang, Z. P., “Study on Corrosivity of Salinzed Soil of Oinghai Plateau to Buildings,” Architecture Technology, V. 35, No. 4, 2004, pp. 254-256. (in Chinese)
22. Yan, C. W.; Li, J.; Zhang, J.; and Liu, S. G., “Chloride Diffusion in Concrete in a West Chlorine Saline Soil Medium,” Journal of Functional Materials, V. 47, No. 02, 2016, pp. 2060-2066. (in Chinese)
23. Su, Y.; Tian, Y.; and Song, X., “Progressive Collapse Resistance of Axially-Restrained Frame Beams,” ACI Structural Journal, V. 106, No. 5, Sept.-Oct. 2009, pp. 600-607.
24. Yu, J., and Tan, K., “Experimental and Numerical Investigation on Progressive Collapse Resistance of Reinforced Concrete Beam Column Sub-Assemblages,” Engineering Structures, V. 55, No. 10, 2013, pp. 90-106. doi: 10.1016/j.engstruct.2011.08.040
25. Wang, Y.; Gu, X.; and Lin, F., “Vertical Bearing Capacity of RC Two-Bay Beams Considering Compressive Arch Action,” Journal of Building Structures, V. 34, 2013, pp. 32-42. (in Chinese)
26. Guo, S.; Guo, L.; and Wu, Z., “Experimental and Analytical Studies on Performance of Composite Frame under Column Loss,” Journal of Building Structures, V. 34, No. 4, 2013, pp. 43-48. (in Chinese)
27. Yan, C. W.; Zhao, J. J.; Liu, S. G.; Zhang, J., “Seismic Yield Strength of Reinforced Concrete Bridge Piers in a Saline Soil Environment,” Journal of Performance of Constructed Facilities, ASCE, V. 34, No. 2, 2020, p. 04019114. doi: 10.1061/(ASCE)CF.1943-5509.0001357
28. Faye, P. N.; Ye, Y. H.; and Diao, B., “Effects of Crack Width on Chloride Penetration and Performance Deterioration of RC Columns with Sustained Eccentric Compressive Load,” Journal of Civil Engineering-KSCE, V. 22, No. 2, 2018, pp. 637-646. doi: 10.1007/s12205-017-1089-5
29. Tang, S.; Yao, Y.; Andrade, C.; and Li, Z. J., “Recent Durability Studies on Concrete Structure,” Cement and Concrete Research, V. 78, 2015, pp. 143-154. doi: 10.1016/j.cemconres.2015.05.021
30. Ghosh, J., and Padgett, J. E., “Aging Considerations in the Development of Time-Dependent Seismic Fragility Curves,” Journal of Structural Engineering, ASCE, V. 136, No. 12, 2010, pp. 1497-1511. doi: 10.1061/(ASCE)ST.1943-541X.0000260
31. Yuan, Y.; Jia, F.; and Cai, Y., “Deterioration of Mechanical Behavior of Corroded Steel Bar,” Industrial Building, V. 30, No. 1, 2000, pp. 43-46. (in Chinese)
32. Zhang, K. B.; Zhang, J. R.; and Wang, L., “Experimental Study Effect of Corrosion on Reinforcement Strength,” Journal of Highway and Transportation Research and Development, V. 27, No. 12, 2010, pp. 59-66. (in Chinese)
33. Du, Y. G.; Clark, L. A.; and Chan, A. H. C., “Residual Capacity of Corroded Reinforcing Bars,” Magazine of Concrete Research, V. 57, No. 3, 2005, pp. 135-147. doi: 10.1680/macr.2005.57.3.135