[1] Qin Xiaochuan, Meng Shaoping, Tu Yongming, Cao Dafu, et al. Ultimate load bearing capacity evaluation of concrete beamssubjected to freeze-thaw cycles [J]. Journal of Southeast University (English Edition), 2015, 31 (4): 522-528. [doi:10.3969/j.issn.1003-7985.2015.04.016]
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Ultimate load bearing capacity evaluation of concrete beamssubjected to freeze-thaw cycles(
)
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 31
- Issue:
- 2015 4
- Page:
- 522-528
- Research Field:
- Civil Engineering
- Publishing date:
- 2015-12-30
Info
- Title:
- Ultimate load bearing capacity evaluation of concrete beamssubjected to freeze-thaw cycles
- Author(s):
- Qin Xiaochuan1; Meng Shaoping1; Tu Yongming1; Cao Dafu2
-
1School of Civil Engineering, Southeast University, Nanjing 210096, China
2College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, China
- PACS:
- TU378.2
- DOI:
- 10.3969/j.issn.1003-7985.2015.04.016
- Abstract:
- A theoretical prediction method based on the change of concrete material is proposed to evaluate the ultimate bending moment of concrete beams which have undergone freeze-thaw cycles(FTCs). First, the freeze-thaw damage on concrete material is analyzed and the residual compressive strength is chosen to indicate the freeze-thaw damage. Then, the equivalent block method is employed to simplify the compressive stress-strain curve of the freeze-thaw damaged concrete and the mathematical expression for the ultimate bending moment is obtained. Comparisons of the predicted results with the test data indicate that the ultimate bending moment of concrete beams affected by FTC attack can be predicted by this proposed method. However, the bond-slip behavior and the randomness of freeze-thaw damage will affect the accuracy of the predicted results, especially when the residual compressive strength is less than 50%.
References:
[1] Pigeon M, Pleau R. Durability of concrete in cold climates[M]. Taylor & Francis, 1995.
[2] Fagerlund G. Modeling the service life of concrete exposed to frost[C]//International Conference on Ion and Mass Transport in Cement-Based Materials. Toronto, Canada, 1999: 195-204.
[3] Cho T. Prediction of cyclic freeze-thaw damage in concrete structures based on response surface method[J]. Construction & Building Materials, 2007, 21(12): 2031-2040.
[4] Ueda T, Wang L, Hasan M, et al. Mesoscale simulation of influence of frost damage on mechanical properties of concrete[J]. Journal of Materials in Civil Engineering, 2009, 21(6): 244-252.
[5] Duan A, Jin W L, Qian J R. Effect of freeze-thaw cycles on the stress-strain curves of unconfined and confined concrete[J]. Materials and Structures, 2011, 44(7): 1309-1324.
[6] Hasan M, Ueda T, Sato Y. Stress-strain relationship of frost-damaged concrete subjected to fatigue loading[J]. Journal of Materials in Civil Engineering, 2008, 20(1): 37-45.
[7] Li W T, Sun W, Jiang J Y. Damage of concrete experiencing flexural fatigue load and closed freeze/thaw cycles simultaneously[J]. Construction & Building Materials, 2011, 25(5): 2604-2610.
[8] Shang H S, Song Y P. Experimental study of strength and deformation of plain concrete under biaxial compression after freezing and thawing cycles[J]. Cement & Concrete Research, 2006, 36(10): 1857-1864.
[9] Shang H S, Song Y P, Qin L K. Experimental study on the property of concrete after freeze-thaw cycles[J]. China Concrete and Cement Products, 2005, 32(2): 9-11.(in Chinese)
[10] Shang H S, Song Y P, Qin L K. Experimental study on strength and deformation of plain concrete under triaxial compression after freeze-thaw cycles[J]. Building & Environment, 2008, 43(7): 1197-1204.
[11] Shang H S, Yin Q X, Song Y P, et al. Experimental study on the influence of freezing and thawing cycles on deformation features of common concrete[J]. Yangtze River, 2006, 39(4): 60-63.(in Chinese)
[12] Sun W, Zhang Y M, Yan H D, et al. Damage and damage resistance of high strength concrete under the action of load and freeze-thaw cycles[J]. Cement & Concrete Research, 1999, 29(9): 1519-1523.
[13] Diao B, Sun Y, Cheng S H, et al. Effects of mixed corrosion, freeze-thaw cycles, and persistent loads on behavior of reinforced concrete beams[J]. Journal of Cold Regions Engineering, 2011, 25(1): 37-52.
[14] Hanjari K Z, Kettil P, Lundgren K. Modelling the structural behaviour of frost-damaged reinforced concrete structures[J]. Structure and Infrastructure Engineering, 2013, 9(5): 416-431.
[15] Cao D F, Qin X C, Yuan S F. Experimental study on mechanical behaviors of prestressed concrete beams subjected to freeze-thaw cycles[J]. China Civil Engineering Journal, 2013, 46(8): 38-44.(in Chinese)
[16] ASTM. ASTM C666/C666M-03 Standard test method for resistance of concrete to rapid freezing and thawing[S]. ASTM, 2008.
[17] Ministry of Housing and Urban-Rural Development of the People’s Republic of China. GB/T 50082—2009 Standard for test methods of long-term performance and durability of ordinary concrete[S]. Beijing: China Architecture & Building Press, 2009.(in Chinese)
[18] Cao D F, Fu L Z, Yang Z W, et al. Study on constitutive relations of compressed concrete subjected to action of freezing-thawing cycles[J]. Journal of Building Materials, 2013, 16(1): 17-23, 32.(in Chinese)
[19] Jacobsen S, Sellevold J. Self healing of high strength concrete after deterioration by freeze/thaw[J]. Cement & Concrete Research, 1996, 26(1): 55-62.
[20] Guo Z H. The strength and the constitutive relation of concrete: theory and application[M]. Beijing:China Architecture & Building Press, 2004.(in Chinese)
[21] Hassanzadeh M, Fagerlund G. Residual strength of the frost-damaged reinforced concrete beams[C]//European Conference on Computational Mechanics. Lisbon, Portugal, 2006: 366-366.
[22] Guo R Y. Experimental research on reinforced concrete bending members under freeze-thaw cycles[D]. Yangzhou: School of Civil Engineering, Yangzhou University, 2011.(in Chinese)
[23] Petersen L, Lohaus L, Polak M A. Influence of freezing-and-thawing damage on behavior of reinforced concrete elements[J]. ACI Materials Journal, 2007, 104(4): 369-378.
Memo
- Memo:
-
Biographies: Qin Xiaochuan(1985—), male, graduate; Tu Yongming(corresponding author), male, doctor, associate professor, tuyongming@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.50978224, 51378104), the Priority Academic Program Development of Jiangsu Higher Education Institutions.
Citation: Qin Xiaochuan, Meng Shaoping, Tu Yongming, et al. Ultimate load bearing capacity evaluation of concrete beams subjected to freeze-thaw cycles[J].Journal of Southeast University(English Edition), 2015, 31(4):522-528.[doi:10.3969/j.issn.1003-7985.2015.04.016]