Unified Strength Model Based on Hoek-Brown Failure Criterion for Circular and Square Concrete Columns Confined by FRP
Publication: Journal of Composites for Construction
Volume 14, Issue 2
Abstract
Most existing models for evaluating the strength of fiber-reinforced polymer (FRP)-confined concrete columns are based in an early work. In this paper, a new model based on the Hoek-Brown failure criterion is proposed. The existing strength models for FRP-confined circular and square concrete columns are reviewed, evaluated, and compared with the proposed model. An updated database that includes a large number of test data are then used to evaluate the models. Comparisons between the models and the test results demonstrate the accuracy of the proposed model. Apart from this improved accuracy, the proposed model also has a unified form for both circular and square columns, and can be used to predict the strength of columns that have existing damage or cracks. Test data for FRP-repaired concrete columns are collected from the literature and used to evaluate and demonstrate the performance of the proposed model in predicting the strength of FRP-confined deficient columns.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The work described in this paper was fully supported by a grant from the City University of Hong Kong (Project No. UNSPECIFIED7002369).
References
Al-Salloum, Y. A. (2007). “Influence of edge sharpness on the strength of square concrete columns confined with FRP composite laminates.” Composites, Part B, 38(5–6), 640–650.
American Concrete Institute (ACI) Committee 440. (2002). “Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures.” Technical Committee Document No. 440.2R-02, Detroit.
Campione, G., and Miraglia, N. (2003). “Strength and strain capacities of concrete compression members reinforced with FRP.” Cem. Concr. Compos., 25(1), 31–41.
Chaallal, O., Mohsen, S., and Munzer, H. (2003). “Performance of axially loaded short rectangular columns strengthened with carbon fiber-reinforced polymer wrapping.” J. Compos. Constr., 7(3), 200–208.
Demers, M., and Neale, K. W. (1994). “Strengthening of concrete columns with unidirectional composite sheets.” Proc., 4th Int. Conf. on Short and Medium Span Bridges, A. A. Mufti, B. Bakht, and L. G. Jaeger, eds., Canadian Society for Civil Engineering, Montréal, 895–905.
Fardis, M. N., and Khalili, H. (1982). “FRP-encased concrete as a structural material.” Mag. Concrete Res., 34(121), 191–202.
Girgin, C. Z., Nihal, A., and Ergin, A. (2007). “Evaluation of strength criteria for very-high-strength concretes under triaxial compression.” ACI Struct. J., 104(3), 278–284.
Green, F. M., Bisby, L. A., Fam, A. Z., and Kodur, V. K. R. (2006). “FRP confined concrete columns: Behaviour under extreme conditions.” Cem. Concr. Compos., 28(10), 928–937.
Hoek, E. (1968). “Brittle fracture of rock.” Rock mechanics in engineering practice, Wiley, New York, 99–124.
Hoek, E., and Brown, E. T. (1980). “Empirical strength criterion for rock masses.” J. Geotech. Engrg. Div., 106(GT9), 1013–1035.
Hoek, E., and Brown, E. T. (1982). Underground excavations in rock, published for the Institution of Mining and Metallurgy, E & FN Spon, London.
Hoek, E., Kaiser, P. K., and Bawden, W. F. (1995). Support of underground excavations in hard rock, Balkema, Rotterdam, The Netherlands.
Ilki, A., Kumbasar, N., and Koc, V. (2004). “Low strength concrete members externally confined with FRP sheets.” Struct. Eng. Mech., 18(2), 167–194.
Karabinis, A. I., and Rousakis, T. C. (2001). “Carbon FRP confined concrete elements under axial load.” Proc., Int. Conf. on FRP Composites in Civil Engineering, J. G. Teng, ed., Hong Kong, 309–316.
Kono, S., Inazumi, M., and Kaku, T. (1998). “Evaluation of confining effects of CFRP sheets on reinforced concrete members.” Proc., 2nd Int. Conf. on Composites in Infrastructure (ICCI), Tucson, Ariz., 343–355.
Kumutha, R., Vaidyanathan, R., and Palanichamy, M. S. (2007). “Behaviour of reinforced concrete rectangular columns strengthened using GFRP.” Cem. Concr. Compos., 29(8), 609–615.
Lam, L., and Teng, J. G. (2001). “A new stress-strain model for FRP-confined concrete.” Proc., Int. Conf. on FRP Composites in Civil Engineering, J. G. Teng, ed., Hong Kong, 283–292.
Lam, L., and Teng, J. G. (2003a). “Design-oriented stress-strain model for FRP-confined concrete.” Constr. Build. Mater., 17(6–7), 471–489.
Lam, L., and Teng, J. G. (2003b). “Design-oriented stress-strain model for FRP-confined concrete in rectangular columns.” J. Reinf. Plast. Compos., 22(13), 1149–1186.
Liu, H. K., Liao, W. C., Tseng, L., Lee, W. H., and Sawada, Y. (2004). “Compression strength of pre-damaged concrete cylinders reinforced by non-adhesive filament wound composites.” Composites, Part A, 35(2), 281–292.
Matthys, S., Toutanji, H., Audenaert, K., and Taerwe, L. (2005). “Axial load behavior of large-scale columns confined with FRP composites.” ACI Struct. J., 102(2), 258–267.
Mirmiran, A., and Shahawy, M. (1997). “Behavior of concrete columns confined by fiber composite.” J. Struct. Eng., 123(5), 583–590.
Mirmiran, A., Shahawy, M., Samaan, M., Echary, H. E., Mastrapa, J. C., and Pico, O. (1998). “Effect of column parameters on FRP-confined concrete.” J. Compos. Constr., 2(4), 175–185.
Miyauchi, K., Inoue, S., Kuroda, T., and Kobayashi, A. (1999). “Strengthening effects with carbon fiber sheet for concrete column.” Trans. Jpn. Concr. Inst., 21(3), 1453–1458.
Miyauchi, K., Nishibayashi, S., and Inoue, S. (1997). “Estimation of strengthening effects with carbon fiber sheet for concrete column.” Proc., FRPRCS-3, Vol. 1, Sapporo, Japan, 217–224.
Pessiki, S., Harries, K. A., Kestner, J. T., Sause, R., and Ricles, J. M. (2001). “Axial behavior of reinforced concrete columns confined with FRP jackets.” J. Compos. Constr., 5(4), 237–245.
Razvi, S., and Saatcioglu, M. (1999). “Confinement model for high strength concrete.” J. Struct. Eng., 125(3), 281–289.
Restrepo, J. I., and De Vino, B. (1996). “Enhancement of the axial load-capacity of reinforced concrete columns by means of fiber glass-epoxy jackets.” Proc., 2nd Int. Conf. on Advanced Composite Materials in Bridges and Structures, Montréal, 547–553.
Richart, F. E., Brandtzaeg, A., and Brown, R. L. (1928). “A study of the failure of concrete under combined compressive stresses.” Engineering Experiment Bulletin No. 185, University of Illinois, Urbana, Ill.
Rochette, P., and Labossière, P. (2000). “Axial testing of rectangular column models confined with composites.” J. Compos. Constr., 4(3), 129–136.
Rousakis, T. C., and Karabinis, A. I. (2008). “Substandard reinforced concrete members subjected to compression: FRP confining effects.” Mater. Struct., 41(9), 1595–1611.
Rousakis, T. C., Karabinis, A. I., and Kiousis, P. D. (2007). “FRP-confined concrete members: Axial compression experiments and plasticity modeling.” Eng. Struct., 29(7), 1343–1353.
Saafi, M., Toutanji, H. A., and Li, Z. (1999). “Behavior of concrete columns confined with fiber reinforced polymer tubes.” ACI Struct. J., 96(4), 500–509.
Samaan, M., Mirmiran, A., and Shahawy, M. (1998). “Model of concrete confined fiber composite.” J. Struct. Eng., 124(9), 1025–1031.
Shehata, L. A. E. M., Carneiro, L. A. V., and Shehata, L. C. D. (2002). “Strength of short concrete columns confined with CFRP sheets.” Mater. Struct., 35(1), 50–58.
Spoelstra, M. R., and Monti, G. (1999). “FRP-confined concrete model.” J. Compos. Constr., 3(3), 143–150.
Suter, R., and Pinzelli, R. (2001). “Confinement of concrete columns with FRP sheets.” Proc., 5th Int. Conf. on Fibre Reinforced Plastics for Reinforced Concrete Structures, Cambridge, U.K., 793–802.
Tastani, S. P., and Pantazopoulou, S. J. (2004). “Experimental evaluation of FRP jackets in upgrading RC corroded columns with substandard detailing.” Eng. Struct., 26(6), 817–829.
Toutanji, H. A. (1999). “Stress-strain characteristics of concrete columns externally confined with advanced fiber composite sheets.” ACI Mater. J., 96(3), 397–404.
Vintzileou, E., and Panagiotidou, E. (2008). “An empirical model for predicting the mechanical properties of FRP-confined concrete.” Constr. Build. Mater., 22(5), 841–854.
Wang, L. M. (2007). “Effect of corner radius on the performance of CFRP-confined square concrete columns,” M.Phil. thesis, City Univ. of Hong Kong.
Wang, L. M., and Wu, Y. F. (2008). “Effect of corner radius on the performance of CFRP-confined square concrete columns: Test.” Eng. Struct., 30(2), 493–505.
Wu, Y. F., Tao, L., and Oehlers, D. J. (2006). “Fundamental principles that govern retrofitting of reinforced concrete columns by steel and FRP jacketing.” Adv. Struct. Eng., 9(4), 507–533.
Wu, Y. F., and Wang, L. M. (2009). “A unified strength model for square and circular concrete columns confined by external jacket.” J. Struct. Eng., 135(3), 253–261.
Xiao, Y., and Wu, H. (2000). “Compressive behavior of concrete confined by carbon fiber composite jackets.” J. Mater. Civ. Eng., 12(2), 139–146.
Xiao, Y. and Wu, H. (2003). “Compressive behavior of concrete confined by various types of FRP composite jackets.” J. Reinf. Plast. Compos., 22(13), 1187–1201.
Youssef, M. N., Feng, Q., and Mosallam, A. S. (2007). “Stress-strain model for concrete confined by FRP composites.” Composites, Part B, 38, 614–628.
Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 14 • Issue 2 • April 2010
Pages: 175 - 184
Copyright
© 2010 ASCE.
History
Received: Mar 25, 2009
Accepted: Aug 19, 2009
Published online: Mar 15, 2010
Published in print: Apr 2010
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.