Some controversial aspects of the seismic design of reinforced concrete building structures
DOI:
https://doi.org/10.5459/bnzsee.36.3.165-188Abstract
Significant differences exist between the recommendations for seismic design of the codes and guidelines for reinforced concrete of different countries. Performance criteria for building structure to avoid unacceptable damage during various levels of earthquake hazard need to be refined. More accurate recommendation for the effective flexural rigidity of reinforced concrete members are required for linear elastic structural analysis to enable better estimates of the periods of vibration and the lateral deflections of statically indeterminate structures including the effects of cracking of concrete. Current code recommended values for flexural rigidity will generally lead to estimates of the periods of vibration and lateral deflections, which are on the low side. The capacity design approach to ensure the most appropriate mechanism of yielding will occur in the event of a severe earthquake is generally recognized by codes but to varying degrees of clarity, and the degrees to which capacity design is incorporated in each code varies significantly. High strength concrete and high strength non-prestressed steel reinforcement can be used in the design of buildings but the brittle behaviour of high strength concrete and the unusable yield strength of high strength steel reinforcement need to be considered. Important differences between codes exist in the rules for the quantity of confining reinforcement placed in reinforced concrete columns to ensure ductile behaviour. Significant differences also exist between the quantities of shear and confining reinforcement required in beam-column joints and in the anchorage of length of longitudinal reinforcement passing through beam-column joints. Precast concrete structures can be designed successfully for earthquake resistance but design codes in seismic regions contain provisions for precast concrete to varying degrees.
References
European Committee for Standardisation: Design provisions for earthquake resistance of structures EC 8 (Drafts), Brussels, 1994-2003.
Architectural Institute of Japan (1997). Design guidelines for earthquake resistant reinforced concrete buildings based on inelastic displacement concept (Draft), Tokyo, (in Japanese).
American Concrete Institute (2002). Building code requirements for structural concrete ACI 318-02, Farmington Hills.
Standards New Zealand (1995). The design of concrete structures NZS 3101:1995, Wellington.
Standards New Zealand (1992). General structural design and design loadings for buildings NZS 4203:1992, Wellington.
Structural Engineers Association of California (1995). Vision 2000: Performance based seismic engineering of buildings, San Francisco.
Osaka, T., Hiraishi, H., Ohashi, Y. (2000). A new frame work for performance-based design of building structures, Proceeding o f the Twelfth World Conference on Earthquake Engineering, paper #2098, Auckland, New Zealand.
Priestley, M.J.N. (2000). Performance based seismic design, Bulletin of the New Zealand Society for Earthquake Engineering, Vol. 33, No. 3, September, pp. 325-346.
Priestley, M.J.N. (1998). Brief comments on elastic flexibility of reinforced concrete frames and significance to seismic design. Bulletin of New Zealand National Society for Earthquake Engineering, Vol. 31, No. 4, December, pp 246-258. DOI: https://doi.org/10.5459/bnzsee.31.4.246-259
Park, R. and Paulay, T. (1975). Reinforced concrete structures. John Wiley and Sons, New York, 769 pp. DOI: https://doi.org/10.1002/9780470172834
Park, R. and Paulay, T. and Bull, D.K. (1992). Seismic design of reinforced concrete structures. Technical Report No.20, New Zealand Concrete Society, Wellington, September.
Standards Association of New Zealand (1989). Steel bars for the reinforcement of concrete NZS 3402:1989, Wellington.
Andriana, T. and Park, R. (1986). Seismic design considerations of the properties of New Zealand manufactured steel reinforcing bars, Bulletin of the New Zealand National Society for Earthquake Engineering, Vol. 19, No. 3, September, pp. 213-246.
Zahn, F.A., Park, R. and Priestley, M.J.N. (1986). Design of reinforced concrete bridge columns for strength and ductility, Research report 86-7, Department of Civil Engineering, University of Canterbury, March, 330 pp.
Cheung, P.C., Paulay, T. and Park, R. (1991). Mechanisms of slab contributions in beam-column subassemblages. Design o f Beam-Column Joints for Seismic Resistance, Special Publication, SP-123, American Concrete Institute, pp. 259-289.
Hollings, J.P. (1969). Reinforced concrete seismic design. Bulletin of New Zealand National Society for Earthquake Engineering, Vol. 2, No. 3, pp. 217-250.
Paulay, T. and Priestley, M.J.N. (1992). Seismic design of reinforced concrete and masonry buildings. John Wiley and Sons, New York, 744 pp. DOI: https://doi.org/10.1002/9780470172841
Park, R. (1986). Ductile design approach for reinforced concrete frames. Earthquake Spectra, Vol. 2, No. 3, May, pp. 565-619. DOI: https://doi.org/10.1193/1.1585398
Paulay, T. (1997). Evaluation of actions, report of discussion group on seismic design of ductile moment resisting reinforced concrete frames. Bulletin of New Zealand National Society for Earthquake Engineering, Vol.10, No.2, June, pp. 85-94.
Booth, E.D., Kappos, A.J., Park, R., Moehle, J.P. and Hikone, S. (1998). Seismic design of concrete frame structures: A comparison of Eurocode 8 with other international practice, Proceedings of the 6th Conference of the Society for Earthquake and Civil Engineering Dynamics, Oxford, United Kingdom, March, pp. 481-492.
International Conference of Building Officials: Uniform building code, Whittier, California, 1997.
Pinto, P.E., Colangelo, F. and Giannini, R. (1995). Stochastic Iinearization technique for the calibration of capacity design factors of RC frames, Institut fur Baustatik und Konstruktion, ETH Zurich, IBK Publikation SP-004.
Panagiotakos, T.B., and Fardis, M.N. (1998). Effect of column capacity design on earthquake response of reinforced concrete buildings. Journal of Earthquake Engineering, Vol. 2, No. 1, pp. 113-145. DOI: https://doi.org/10.1080/13632469809350316
Dooley, K.L. and Braci, J.M. (2001). Seismic evaluation of column-to-beam strength ratios in reinforced concrete frames. Structural Journal of American Concrete Institute, Vol. 98, No. 4, November-December, pp. 843- 851.
Maffei, J., Stanton, J., Priestley, M.J.N. and Park, R. (2003). Chapter 4 Design approaches, State-of-the-art report on the seismic design of precast concrete structures, Task Group 7.3 of Commission 7, International Federation for Structural Concrete (fib).
Li Bing, Park, R. and Tanaka, H. (1991). Effect of confinement on the behaviour of high strength concrete columns under seismic loading, Proceedings of Pacific Conference on Earthquake Engineering, Vol. 1, Auckland, November, pp. 67-78.
Paulay, T. (2000). A note on new yield stress, Journal of the Structural Engineering Society of New Zealand, Vol. 13, No. 2, September, pp. 43-44.
Park, R. (2001). The use of the new Grade 500E manufacturing steel, Journal of the Structural Society of New Zealand, Vol. 14, No. 1, pp 29-31.
Mander, J.B., Priestley, M.J.N. and Park, R. (1988). Theoretical stress-strain model for confined concrete. Journal of Structural Engineering of the American Society for Civil Engineers, Vol.114, No.8, August, pp. 1804-1826. DOI: https://doi.org/10.1061/(ASCE)0733-9445(1988)114:8(1804)
Mander, J.B., Priestley, M.J.N. and Park, R. (1988). Observed stress-strain behaviour of confined concrete. Journal of Structural Engineering of the American Society for Civil Engineers, Vol.114, No. 8, August, pp. 1827-1849.
Watson, S., Zahn, F.A., and Park, R. (1994). Confining reinforcement for concrete columns. Journal of Structural Engineering of American Society of Civil Engineers, Vol.120, No.6, June, pp. 1798-1824. DOI: https://doi.org/10.1061/(ASCE)0733-9445(1994)120:6(1798)
Watson. S. and Park, R. (1994). Simulated seismic load tests on reinforced concrete columns. Journal of Structural Engineering of American Society of Civil Engineers, Vol. 120, No. 6, June, pp. 1825-1849.
Park, R. (2002). Some considerations in the seismic design of reinforced concrete interior beam-column joints of moment resisting frames, Journal of the Structural Engineering Society of New Zealand, Vol. 15, No. 2, September, pp. 53-64.
Nineteen papers from the USA, New Zealand, Japan and China (1991). "Design of Beam-Column Joints" for Seismic Resistance", American Concrete Institute SP-123 (J O Jirsa, Editor).
Hakuto, S., Park, R. and Tanaka, H. (1999). Effect of deterioration of bond of beam bars passing through interior beam-column joints on flexural strength and ductility, Structural Journal of American Concrete Institute, Vol. 96, No. 5, September-October, pp. 858- 864.
International Federation for Structural Concrete (fib) (2003). State-of-the-art report on the seismic design of precast concrete structures, Task Group 7.3 of Commission 7, Lausanne.
Architectural Institute of Japan (2000). Draft Japanese design guidelines for precast construction of equivalent monolithic reinforced concrete buildings, Tokyo.
Centre for Advanced Engineering: Guidelines for the use of precast concrete in buildings (1991). University of Canterbury, Christchurch, New Zealand, 1st edition 1991, 2nd edition 1999, 144 pp.
Priestley, M.J.N., Sritharan, S., Conley, J.R. and Pampanin, S. (1999). Preliminary results and conclusions from the PRESSS five-storey precast concrete test building. Journal of the Precast/Prestressed Concrete Institute, Vol. 44, No.6, pp. 42-67.
