Yıl: 2018 Cilt: 4 Sayı: 4 Sayfa Aralığı: 241 - 255 Metin Dili: İngilizce DOI: 10.17515/resm2018.60ea3107 İndeks Tarihi: 25-10-2019

Strength reduction factors for existing mid-rise RC buildings for different performance levels

Öz:
Many earthquake prone countries have significant amount of existing deficient buildings to be evaluated for seismic actions. Although nonlinear methods are more preferable for assessment of existing buildings, most of the practicing engineers are unfamiliar to these methods. Therefore, linear methods seem to be in use in the near future for assessment of great number of deficient existing buildings in a reasonable time. In linear methods, nonlinear behaviour is taken into account by a single parameter: strength reduction factor (R) which is used to greatly reduce the elastic force demand accounting for the nonlinear behaviour. This study evaluates the use of R factors for different ductility and performance levels of buildings with respect to different soil site class. It is observed that the R factors: decrease with increasing periods, are more sensitive for higher performance levels, may change more than 30% with respect to number of story or transverse reinforcement amount, and may change 20% depending on the site class. However, effect of site class is generally smaller and a clear trend is not observed. Exemplary R values for different ductility, performance levels and number of stories are provided in the study.
Anahtar Kelime:

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
  • Whittaker A, Hart G, Rojahn C. Seismic response modification factors. Journal of Structural Engineering ASCE, 1999; 125(4):438 – 44. https://doi.org/10.1061/(ASCE)0733-9445(1999)125:4(438)
  • ASCE SEI/ASCE 7-05. Minimum design loads for buildings and other structures. Reston (USA): American Society of Civil Engineers; 2005.
  • CEN Eurocode 8. Design Provisions for earthquake resistance of structures (European Prestandard ENV 1998). Brussels (Belgium): Comité Européen de Normalisation; 2004.
  • Turkish Earthquake Code (TEC). Specifications for buildings to be built in seismic areas, Ministry of Public Works and Settlement, Ankara, Turkey, 2007.
  • UBC, Uniform Building Code, Int. Conf. of Building Officials, Whittier, Calif, USA, 1997.
  • Ozmen HB, Inel M, Senel SM and Kayhan AH. Load carrying system characteristics of existing Turkish RC building stock. International Journal of Civil Engineering, 2015;13(1): 76 – 91.
  • USGS. www.usgs.gov, 2015
  • ATC. Tentative provisions for the development of seismic regulations for buildings, Rep. No. ATC-3-06, Applied Technology Council, Redwood City, Calif, USA, 1978.
  • ATC. Structural response modification factors, Rep. No. ATC-19, Applied Technology Council, Redwood City, Calif, USA, 1995.
  • Federal Emergency Management Agency (FEMA). NEHRP recommended provisions for seismic regulations for new buildings. Rep. FEMA 302, Washington, D.C., 1997.
  • Uang CM and Bertero VV. Earthquake simulation tests and associated studies of a 0.3scale model of a six-story concentrically braced steel structure. Rep. No. UCB/EERC86/10, University of California, Berkeley, Calif, 1986.
  • Whittaker AS, Uang CM and Bertero VV. Earthquake simulation tests and associated studies of a 0.3-scale model of a six story eccentrically braced steel structure. Rep. No. UCB/EERC-87/02, University of California, Berkeley, Calif, 1987.
  • Nishanth M, Visuvasam J, Simon J, Packiaraj JS. Assessment of seismic response reduction factor for moment resisting RC frames. IOP Conference Series: Materials Science and Engineering, 263 (3), art. no. 032034, 2017. https://doi.org/10.1088/1757-899X/263/3/032034
  • Freeman SA. On the correlation of code forces to earthquake demands. Proc., 4th U.S.Japan Workshop on Improvement of Build. Struct. Des. and Constr. Practices, Applied Technology Council, Redwood City, Calif, 1990.
  • Uang CM and Maarouf A. Safety and economy considerations of UBC seismic force reduction factors. Proc., 1993 National Earthquake Conf., Central United States Earthquake Consortium, Memphis, 1993; 121–130.
  • Hwang H and Shinozuka M. Effect of large earthquakes on the design of buildings in eastern United States. Proc., 5th U.S. National Conf. on Earthquake Eng., Earthquake Engineering Research Institute, Oakland, Calif., 1994; 223–231.
  • Mondal A, Ghosh S & Reddy GR. Performance-based evaluation of the response reduction factor for ductile RC frames. Engineering Structures, 2013; 56: 1808 – 1819. https://doi.org/10.1016/j.engstruct.2013.07.038
  • Newmark N, Hall W. Earthquake spectra and design. Engineering monograph; Earthquake Engineering Research Institute, Berkeley, California, 1982.
  • Riddell R, Newmark N. Statistical analysis of the response of nonlinear systems subjected to earthquakes. Structural research series no. 468; Dept. of Civil Engineering, University of Illinois; Urbana, USA, 1979.
  • Vidic T, Fajfar P, Fischinger M. A procedure for determining consistent inelastic design spectra. In: Nonlinear seismic analysis of reinforced concrete buildings, New York, USA; 1992.
  • Krawinkler H, Nassar A. Seismic design based on ductility and cumulative damage demands and capacities. In: Nonlinear seismic analysis of reinforced concrete buildings, New York, USA; 1992; 27–47.
  • Miranda E, Bertero V. Evaluation of strength reduction for earthquake resistant design. Earthquake Spectra, 1994; 10(2): 357 – 79. https://doi.org/10.1193/1.1585778
  • ATC. Seismic evaluation and retrofit of concrete buildings, Rep. No. ATC-40, Applied Technology Council, Redwood City, California, 1996.
  • Borzi B, Elnashai AS. Refined force reduction factors for seismic design. Engineering Structures, 2000;22(10): 1244 –1260. https://doi.org/10.1016/S01410296(99)00075-9
  • Bertero VV. Evaluation of response reduction factors recommended by ATC and SEAOC. Proc., 3rd U.S. National Conf. on Earthquake Engineering, Earthquake Engineering Research Institute, Oakland, Calif., 1986: 1663 – 1673.
  • Whittaker AS, Uang CM and Bertero VV. An experimental study of the behavior of dual steel systems. Rep. No. UCB/ EERC-88/14, University of California, Berkeley, Calif, 1990.
  • ATC. A critical review of current approaches to earthquake-resistant design, Rep. No. ATC-34, Applied Technology Council, Redwood City, Calif, 1995.
  • Husain M and Tsopelas P. Measures of structural redundancy in R/C buildings. I: Redundancy indices. Journal of Structural Engineering ASCE, 2004; 130(11): 1651 – 1658. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:11(1651)
  • Tena-Colunga A, and Cortés-Benítez JA. Assessment of redundancy factors for the seismic design of special moment resisting reinforced concrete frames. Latin American Journal of Solids and Structures, 2015; 12(12): 2330 – 2350. https://doi.org/10.1590/1679-78251800
  • Zhu B and Frangopol DM. Effects of post-failure material behaviour on redundancy factor for design of structural components in nondeterministic systems. Structure and Infrastructure Engineering, 2015; 11(4): 466 – 485. https://doi.org/10.1080/15732479.2014.951864
  • Abdi H, Hejazi F, Jaafar MS and Karim IA. Evaluation of response modification factor for steel structures with soft story retrofitted by viscous damper device, Advances in Structural Engineering, 2016; 19(8): 1275-1288. https://doi.org/10.1177/1369433216642036
  • Turkish Earthquake Code (TEC). Specifications for buildings to be built in seismic areas. Ministry of Public Works and Settlement, Ankara, Turkey, 1975.
  • FEMA 356. Prestandard and commentary for seismic rehabilitation of buildings, Federal Emergency Management Agency, Washington, D.C., 2000.
  • Ozmen HB and Inel M. Effect of rapid screening parameters on seismic performance of RC buildings. Structural Engineering and Mechanics, 2017; 62(4): 391-399. https://doi.org/10.12989/sem.2017.62.4.391
  • Inel M, Ozmen HB and Bilgin H. Re-evaluation of building damages during recent earthquakes in Turkey. Engineering Structures, 2008; 30: 412-427. https://doi.org/10.1016/j.engstruct.2007.04.012
  • SAP2000, Computers and Structures Inc. Integrated finite element analysis and design of structures basic analysis reference manual. Berkeley (CA, USA).
  • Scott BD, Park R, Priestley MJN. Stress–strain behavior of concrete confined by overlapping hoops at low and high strain rates. ACI Structural Journal, 1982; 76(1): 13– 27.
  • Mander JB (1984). Seismic design of bridge piers. Ph.D. Dissertation, University of Canterbury, New Zealand.
  • Priestley MJN, Seible F and Calvi GMS. Seismic Design and Retrofit of Bridges, John Wiley & Sons, New York, 1996. https://doi.org/10.1002/9780470172858
  • Park R and Paulay T. Reinforced Concrete Structures, John Wiley & Sons, New York, 1975. https://doi.org/10.1002/9780470172834
  • Inel M, Bilgin H and Ozmen HB. Seismic capacity evaluation of school buildings in Turkey. Proceedings of The Institution of Civil Engineers-Structures and Buildings, 2008; 161(3): 147-159. https://doi.org/10.1680/stbu.2008.161.3.147
  • TS500. Design and construction specifications for reinforced concrete structures, Turkish Standards Institute, Ankara, Turkey, 2000.
  • FEMA 440. Improvement of nonlinear static seismic analysis procedures, Federal Emergency Management Agency, Washington, D.C., 2005.
  • Ozdemir G, Bayhan B. Response of an isolated structure with deteriorating hysteretic isolator model. Research on Engineering Structures and Materials, 2015; 1: 1–10. https://doi.org/10.17515/resm2014.01st1216
  • Demirtas B, Bayraktar A, Dumanoglu A. Model updating effects on the seismic behavior of tall buildings under far and near-fault ground motions. Research on Engineering Structures and Materials, 2017; 3(2): 99 – 112
  • PEER. Pacific Earthquake Engineering Research Center, http://peer.berkeley.edu/ 2015
  • Akkar S, Sucuoglu H, Yakut A. Displacement based fragility functions for low- and midrise ordinary concrete buildings. Earthquake Spectra, 2005; 21(4): 901-927. https://doi.org/10.1193/1.2084232
  • Ozcebe G. Seismic assessment and rehabilitation of existing buildings, Tubitak Research Report. No: ICTAG YMAU I574, Ankara, Turkey, 2004.
  • Khoshnoudian F, Ahmadi E, Kiani M and Hadikhan Tehrani M. Collapse capacity of soil-structure systems under pulse-like earthquakes, Earthquake Engineering & Structural Dynamics, 2015; 44(3): 481-490. https://doi.org/10.1002/eqe.2501
  • Dogangun A. Performance of reinforced concrete buildings during the May 1 2003 Bingöl earthquake in Turkey. Engineering Structures, 2004; 26: 841-856. https://doi.org/10.1016/j.engstruct.2004.02.005
  • Sezen H, Whittaker AS, Elwood KJ and Mosalam KW. Performance of reinforced concrete buildings during the August 17, 1999 Kocaeli, Turkey earthquake, and the seismic design and construction practice in Turkey. Engineering Structures, 2003; 25: 103–114.https://doi.org/10.1016/S0141-0296(02)00121-9
  • Ozhendekci N and Ozhendekci D. Rapid seismic vulnerability assessment of low-to mid-rise reinforced concrete buildings using Bingöl's regional data, Earthquake Spectra, 2012; 28(3): 1165-1187. https://doi.org/10.1193/1.4000065
  • Ozmen HB, Inel M. Akyol E, Cayci BT & Un H. Evaluations on the relation of RC building damages with structural parameters after May 19, 2011 Simav (Turkey) earthquake. Natural hazards, 2014; 71(1): 63-84.https://doi.org/10.1007/s11069-013-0900-y
  • Rizwan M, Ahmad N, Khan AN. Seismic performance of compliant and noncompliant special moment-resisting reinforced concrete frames. ACI Structural Journal, 2018; 115 (4): 1063-1073. https://doi.org/10.14359/51702063
APA Ozmen H, İNEL m (2018). Strength reduction factors for existing mid-rise RC buildings for different performance levels. , 241 - 255. 10.17515/resm2018.60ea3107
Chicago Ozmen Hayri Baytan,İNEL mehmet Strength reduction factors for existing mid-rise RC buildings for different performance levels. (2018): 241 - 255. 10.17515/resm2018.60ea3107
MLA Ozmen Hayri Baytan,İNEL mehmet Strength reduction factors for existing mid-rise RC buildings for different performance levels. , 2018, ss.241 - 255. 10.17515/resm2018.60ea3107
AMA Ozmen H,İNEL m Strength reduction factors for existing mid-rise RC buildings for different performance levels. . 2018; 241 - 255. 10.17515/resm2018.60ea3107
Vancouver Ozmen H,İNEL m Strength reduction factors for existing mid-rise RC buildings for different performance levels. . 2018; 241 - 255. 10.17515/resm2018.60ea3107
IEEE Ozmen H,İNEL m "Strength reduction factors for existing mid-rise RC buildings for different performance levels." , ss.241 - 255, 2018. 10.17515/resm2018.60ea3107
ISNAD Ozmen, Hayri Baytan - İNEL, mehmet. "Strength reduction factors for existing mid-rise RC buildings for different performance levels". (2018), 241-255. https://doi.org/10.17515/resm2018.60ea3107
APA Ozmen H, İNEL m (2018). Strength reduction factors for existing mid-rise RC buildings for different performance levels. Research on Engineering Structures and Materials, 4(4), 241 - 255. 10.17515/resm2018.60ea3107
Chicago Ozmen Hayri Baytan,İNEL mehmet Strength reduction factors for existing mid-rise RC buildings for different performance levels. Research on Engineering Structures and Materials 4, no.4 (2018): 241 - 255. 10.17515/resm2018.60ea3107
MLA Ozmen Hayri Baytan,İNEL mehmet Strength reduction factors for existing mid-rise RC buildings for different performance levels. Research on Engineering Structures and Materials, vol.4, no.4, 2018, ss.241 - 255. 10.17515/resm2018.60ea3107
AMA Ozmen H,İNEL m Strength reduction factors for existing mid-rise RC buildings for different performance levels. Research on Engineering Structures and Materials. 2018; 4(4): 241 - 255. 10.17515/resm2018.60ea3107
Vancouver Ozmen H,İNEL m Strength reduction factors for existing mid-rise RC buildings for different performance levels. Research on Engineering Structures and Materials. 2018; 4(4): 241 - 255. 10.17515/resm2018.60ea3107
IEEE Ozmen H,İNEL m "Strength reduction factors for existing mid-rise RC buildings for different performance levels." Research on Engineering Structures and Materials, 4, ss.241 - 255, 2018. 10.17515/resm2018.60ea3107
ISNAD Ozmen, Hayri Baytan - İNEL, mehmet. "Strength reduction factors for existing mid-rise RC buildings for different performance levels". Research on Engineering Structures and Materials 4/4 (2018), 241-255. https://doi.org/10.17515/resm2018.60ea3107