ASCE/SEI 41 Provisions on Deformation Capacity of Older-Type Reinforced Concrete Columns with Plain Bars
Publication: Journal of Structural Engineering
Volume 139, Issue 12
Abstract
This study contributes to the improvement of capacity models for older-type RC members to be used in the seismic assessment of existing RC structures. A database of experimental tests on RC columns with plain bars is presented. Due to the low bond strength, the deformation capacity of these members is particularly influenced by fixed-end rotation mechanism compared with members with deformed bars. ASCE/SEI 41 provisions on the deformation capacity of older-type RC columns, including later proposed modifications, are reviewed. Provisions for the evaluation of effective stiffness are reviewed, too, and special attention is paid to failure mode classification. The effectiveness of such provisions for columns with plain bars is evaluated through their application to the presented database. Results obtained from the application of the effective stiffness model are illustrated, and possible improvements are discussed. A significant conservatism in the plastic deformation capacity model is observed. Deformation limits could be relaxed while still meeting code safety requirements. The amount of this adjustment for ASCE/SEI 41 provisions on the deformation capacity of older-type RC columns is evaluated.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
This work was developed under the financial support of ReLUIS-DPC 2010–2013. This support is gratefully acknowledged.
References
Acun, B., and Sucuoglu, H. (2010). “Performance of reinforced concrete columns designed for flexure under severe displacement cycles.” ACI Struct. J., 107(3), 364–371.
American Concrete Institute (ACI). (2005). “Building code requirements for structural concrete and commentary.” ACI-318, Detroit.
ASCE. (2007a). Seismic rehabilitation of existing buildings, ASCE/SEI 41, Reston, VA.
ASCE. (2007b). Seismic rehabilitation of existing buildings, ASCE/SEI 41—Supplement 1, Reston, VA.
Berry, M., Parrish, M., and Eberhard, M. (2004). PEER Structural Performance Database: User’s Manual, Version 1.0, Pacific Earthquake Engineering Research Center, Univ. of California, Berkeley, CA.
Biskinis, D. E., and Fardis, M. N. (2010). “Deformations at flexural yielding of members with continuous or lap-spliced bars.” Struct. Concr., 11(3), 127–138.
Bournas, D. A., Lontou, P. V., Papanicolaou, C. G., and Triantafillou, T. C. (2007). “Textile-reinforced mortar versus fiber-reinforced polymer confinement in reinforced concrete columns.” ACI Struct. J., 104(6), 740–748.
Bournas, D. A., and Triantafillou, T. C. (2009). “Flexural strengthening of reinforced concrete columns with Near-Surface-Mounted FRP or stainless steel.” ACI Struct. J., 106(4), 495–505.
Bousias, S., Spathis, A. L., and Fardis, M. N. (2007). “Seismic retrofitting of columns with lap spliced smooth bars through FRP or concrete jackets.” J. Earthquake Eng., 11(5), 653–674.
Cho, J. Y., and Pincheira, J. A. (2006). “Inelastic analysis of reinforced concrete columns with short lap splices subjected to reversed cyclic loads.” ACI Struct. J., 103(2), 280–290.
Di Ludovico, M., Verderame, G. M., Prota, A., Manfredi, G., and Cosenza, E. (2009). “Experimental investigation on non-conforming full scale RC columns.” Proc., 13th ANIDIS Congress Earthquake Engineering in Italy, Italian National Association of Earthquake Engineering (ANIDIS), Rome, Italy, S2–9.
Elwood, K. J., et al. (2007). “Update to ASCE/SEI 41 concrete provisions.” Earthquake Spectra, 23(3), 493–523.
Elwood, K. J., and Eberhard, M. (2006). “Effective stiffness of reinforced concrete columns.” PEER Research Digest 2006-1, Pacific Earthquake Engineering Research Center, Univ. of California, Berkeley, CA.
Elwood, K. J., and Eberhard, M. (2009). “Effective stiffness of reinforced concrete columns.” ACI Struct. J., 106(4), 476–484.
Elwood, K. J., and Moehle, J. P. (2005). “Drift capacity of reinforced concrete columns with light transverse reinforcement.” Earthquake Spectra, 21(1), 71–89.
Fabbrocino, G., Verderame, G. M., and Manfredi, G. (2005). “Experimental behaviour of anchored smooth rebars in old type reinforced concrete buildings.” Eng. Struct., 27(10), 1575–1585.
Fabbrocino, G., Verderame, G. M., Manfredi, G., and Cosenza, E. (2004). “Structural models of critical regions in old-type RC frames with smooth rebars.” Eng. Struct., 26(14), 2137–2148.
Faella, C., Napoli, A., and Realfonzo, R. (2008). “Cyclic flexural behavior of FRP-confined concrete columns under high axial loading.” Proc., ReLUIS Congress Assessment and Reduction of Seismic Vulnerability of Exisiting R.C. Buildings, E., Cosenza, G., Manfredi, and G., Monti, eds., Polimetrica International Scientific Publisher, Monza, Italy, 533–542.
Feldman, L. R., and Bartlett, F. M. (2005). “Bond strength variability in pullout specimens with plain reinforcement.” ACI Struct. J., 102(6), 860–867.
Feldman, L. R., and Bartlett, F. M. (2007). “Bond stresses along plain steel reinforcing bars in pullout specimens.” ACI Struct. J., 104(6), 685–692.
FEMA. (2000). Prestandard and commentary for the seismic rehabilitation of buildings, FEMA Publication 356, Washington, DC.
Ilki, A., Tezcan, A., Koc, V., and Kumbasar, N. (2004). “Seismic retrofit of non-ductile rectangular reinforced concrete columns by CFRP jacketing.” Proc., 13th World Conf. on Earthquake Engineering, Paper 2236, International Association for Earthquake Engineering (IAEE), Tokyo, Japan.
Karbasi Arani, K., Marefat, M. S., Amrollahi-Biucky, A., and Khanmohammadi, M. (2013). “Experimental seismic evaluation of old concrete columns reinforced by plain bars.” Struct. Des. Tall Special Build., 22(3), 267–290.
Marefat, M. S., Arani, K. K., Hassanzadeh Shirazi, S. M., and Amrollahi-Biucky, A. (2008). “Seismic behavior and retrofit of concrete columns of old r.c. buildings reinforced with plain bars.” 2008 Seismic Engineering Conf. Commemorating the 1908 Messina and Reggio Calabria Earthquake, A. Santini and N. Moraci, eds., Vol. 1020, American Institute of Physics, College Park, MD, 1554–1562.
Ozcan, O., Binici, B., and Ozcebe, G. (2008). “Improving seismic performance of deficient reinforced concrete columns using carbon fiber-reinforced polymers.” Eng. Struct., 30(6), 1632–1646.
Ozcan, O., Binici, B., and Ozcebe, G. (2010). “Seismic strengthening of rectangular reinforced concrete columns using fiber reinforced polymers.” Eng. Struct., 32(4), 964–973.
Pandey, G. R., and Mutsuyoshi, H. (2005). “Seismic performance of reinforced concrete piers with bond-controlled reinforcements.” ACI Struct. J., 102(2), 295–304.
Sezen, H., and Moehle, J. P. (2004). “Shear strength model for lightly reinforced concrete columns.” J. Struct. Eng., 130(11), 1692–1703.
Sezen, H., and Moehle, J. P. (2006). “Seismic tests of concrete columns with light transverse reinforcement.” ACI Struct. J., 103(6), 842–849.
Verderame, G. M., De Carlo, G., Ricci, P., and Fabbrocino, G. (2009b). “Cyclic bond behaviour of plain bars. II: Analytical investigation.” Constr. Build. Mater., 23(12), 3512–3522.
Verderame, G. M., Fabbrocino, G., and Manfredi, G. (2008a). “Seismic response of RC columns with smooth reinforcement. I: Monotonic tests.” Eng. Struct., 30(9), 2277–2288.
Verderame, G. M., Fabbrocino, G., and Manfredi, G. (2008b). “Seismic response of RC columns with smooth reinforcement. II: Cyclic tests.” Eng. Struct., 30(9), 2289–2300.
Verderame, G. M., Ricci, P., De Carlo, G., and Manfredi, G. (2009a). “Cyclic bond behaviour of plain bars. I: Experimental investigation.” Constr. Build. Mater., 23(12), 3499–3511.
Verderame, G. M., Ricci, P., Manfredi, G., and Cosenza, E. (2010). “Ultimate chord rotation of RC columns with smooth bars: Some considerations about EC8 prescriptions.” Bull. Earthquake Eng., 8(6), 1351–1373.
Yalcin, C., Kaya, O., and Sinangil, M. (2008). “Seismic retrofitting of R/C columns having plain rebars using CFRP sheets for improved strength and ductility.” Constr. Build. Mater., 22(3), 295–307.
Zhu, L., Elwood, K. J., and Haukaas, T. (2007). “Classification and seismic safety evaluation of existing reinforced concrete columns.” J. Struct. Eng., 133(9), 1316–1330.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 139 • Issue 12 • December 2013
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Feb 21, 2012
Accepted: Aug 2, 2012
Published online: Aug 13, 2012
Published in print: Dec 1, 2013
Discussion open until: Feb 9, 2014
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.