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Nonlinear Dynamic Analysis of Isolated and Fixed-Base Reinforced Concrete Structures

Year 2011, Volume: 24 Issue: 3, 463 - 475, 25.11.2011

Abstract

Earthquakes are a major threat to human lives and to the integrity of the infrastructures in seismic regions. Structures are the worst hit with the phenomenal damages due to ground motions resulting from earthquakes. Recent research and studies have led to new techniques to reduce the damages caused by earthquakes on structures and these techniques are applied for innovative structural design. One of the techniques is the base isolation method, which is used to design structures against earthquake damages by using seismic isolators to change the dynamic characteristics of a structure. In this study, three bay 4- and 8-storey reinforced concrete structures are designed as isolated and fixed-base. Lead-rubber bearing (LRB) is used as an isolation system. Nonlinear behavior of both isolation system and super-structure are considered in the modeling. The behaviors of designed models under dynamic loads are analyzed using Ruaumoko computer software. Erzincan, Marmara and Duzce Earthquakes are chosen as the ground motions. At the end of analysis, period, storey accelerations, inter-storey deformations, base shear forces, plastic hinge locations and weighted damage histories are compared for isolated and fixed-base structures. As a result, the advantages of isolated reinforced concrete structures against fixed-base structures under earthquake are shown.

 

Keywords: Lead-rubber bearing; Dynamic analysis; Material nonlinearity; Reinforced concrete structure; Damage analysis

 

References

  • Skinner RI, Robinson WH, McVerry GH. “An introduction to seismic isolation”. London: John Wiley and Sons, (1993).
  • Kelly JM. “Earthquake-resistant design with rubber”, 2 nd ed. London: Springer-Verlag; (1997).
  • Naeim F, Kelly JM. “Design of seismic isolated structures; from theory to practice”, Chichester (UK): Wiley; (1999).
  • Kelly JM. “A seismic base isolation: Review and bibliography”. Soil Dyn and Earthq Eng, 5: 202– (1986).
  • Alhan C, Gavin H. “A. parametric study of linear and non linear passively damped seismic isolation system for buildings”, Eng Struc., 24: 485–497 (2004).
  • Matsagar VA, Jangid RS. “Seismic response of base-isolated structures during impact with adjacent structures”, Eng Struc, 25: 1311–1323 (2003).
  • Matsagar VA, Jangid RS. “Influence of isolator characteristics on the response of base-isolated structures”, Eng Struc; 26: 1735–1749 (2004).
  • Wu YY, Samali B. “Shake table testing of a base isolated model”, Eng Struc., 24: 1203–1215 (2002).
  • Jangid RS, Kelly JM. “Base isolation for near-fault motions”, Earthq Eng and Struc Dyn, 30:691–707 (2001).
  • Macrae GA, Morrow DV. Roeder CW. “Near-fault ground motion effects on simple structures”, J of Struc Eng, ASCE; 127(9): 996–1004 (2001).
  • Chopra AK, Chintanapakdee C. “Comparing response of SDF systems to near-fault and far- fault earthquake motions in the context of spectral regions”, Earthq Eng and Struc Dyn., 30: 1769– (2001).
  • Asher JW, Hoskere SN, Ewing RD, Mayes RL, Button MR, Van Volkinburg DR. “Performance of seismically isolated structures in the 1994
  • Northridge and 1995 Kobe earthquakes”,
  • Proceedings of Structures Congress, vol. XV. ASCE; (1997).
  • Pourzeynali S, Zarif M. “Multi-objective optimization of seismically isolated high-rise building structures using genetic algorithms” J of Sound and Vib., 311: 1141–1160 (2008).
  • Jangid RS. “Optimum lead–rubber isolation bearings for near-fault motions”, Eng Struc., 29: –2513 (2007)
  • Providakis CP. “Effect of LRB isolators and supplemental viscous dampers on seismic isolated buildings under near-fault excitations”, Eng Struc; 30: 1187–1198 (2008).
  • Karabork T. “Vibration of control systems and application of high damping rubber bearing”. Ph.D. Dissertation (in Turkish), University of Sakarya, Sakarya, (2001).
  • Turkish Earthquake Code for Buildings in Hazardous Areas (ABYYHY 2007) (in Turkish).
  • Ministry of Public Works and Settlement, Ankara, (2007).
  • IdeCAD structural design and detailing software for reinforced constructions V5.5 IdeCAD software and ideYAPI LTD, (2007). http://www.idecad.com
  • Whittier CA. Uniform Building Code. International Conference of Building Officials (1997).
  • Carr AJ. RUAUMOKO, “Software for inelastic dynamic analysis”, Department of Civil Engineering, University of Canterbury, New Zealand (2000).
  • XTRACT. Cross Sectional Analysis of Components, V6.2.0 Imbsen Software Systems http://www.imbsen.com/xtract.htm Park, Y-J., and Ang, A.H-S., "Mechanistic seismic damage model for reinforced concrete", Journal of Structural Engineering, ASCE, No. ST4, 985: 1111; 722-739.

Reinforced Concrete Structures

Year 2011, Volume: 24 Issue: 3, 463 - 475, 25.11.2011

Abstract

References

  • Skinner RI, Robinson WH, McVerry GH. “An introduction to seismic isolation”. London: John Wiley and Sons, (1993).
  • Kelly JM. “Earthquake-resistant design with rubber”, 2 nd ed. London: Springer-Verlag; (1997).
  • Naeim F, Kelly JM. “Design of seismic isolated structures; from theory to practice”, Chichester (UK): Wiley; (1999).
  • Kelly JM. “A seismic base isolation: Review and bibliography”. Soil Dyn and Earthq Eng, 5: 202– (1986).
  • Alhan C, Gavin H. “A. parametric study of linear and non linear passively damped seismic isolation system for buildings”, Eng Struc., 24: 485–497 (2004).
  • Matsagar VA, Jangid RS. “Seismic response of base-isolated structures during impact with adjacent structures”, Eng Struc, 25: 1311–1323 (2003).
  • Matsagar VA, Jangid RS. “Influence of isolator characteristics on the response of base-isolated structures”, Eng Struc; 26: 1735–1749 (2004).
  • Wu YY, Samali B. “Shake table testing of a base isolated model”, Eng Struc., 24: 1203–1215 (2002).
  • Jangid RS, Kelly JM. “Base isolation for near-fault motions”, Earthq Eng and Struc Dyn, 30:691–707 (2001).
  • Macrae GA, Morrow DV. Roeder CW. “Near-fault ground motion effects on simple structures”, J of Struc Eng, ASCE; 127(9): 996–1004 (2001).
  • Chopra AK, Chintanapakdee C. “Comparing response of SDF systems to near-fault and far- fault earthquake motions in the context of spectral regions”, Earthq Eng and Struc Dyn., 30: 1769– (2001).
  • Asher JW, Hoskere SN, Ewing RD, Mayes RL, Button MR, Van Volkinburg DR. “Performance of seismically isolated structures in the 1994
  • Northridge and 1995 Kobe earthquakes”,
  • Proceedings of Structures Congress, vol. XV. ASCE; (1997).
  • Pourzeynali S, Zarif M. “Multi-objective optimization of seismically isolated high-rise building structures using genetic algorithms” J of Sound and Vib., 311: 1141–1160 (2008).
  • Jangid RS. “Optimum lead–rubber isolation bearings for near-fault motions”, Eng Struc., 29: –2513 (2007)
  • Providakis CP. “Effect of LRB isolators and supplemental viscous dampers on seismic isolated buildings under near-fault excitations”, Eng Struc; 30: 1187–1198 (2008).
  • Karabork T. “Vibration of control systems and application of high damping rubber bearing”. Ph.D. Dissertation (in Turkish), University of Sakarya, Sakarya, (2001).
  • Turkish Earthquake Code for Buildings in Hazardous Areas (ABYYHY 2007) (in Turkish).
  • Ministry of Public Works and Settlement, Ankara, (2007).
  • IdeCAD structural design and detailing software for reinforced constructions V5.5 IdeCAD software and ideYAPI LTD, (2007). http://www.idecad.com
  • Whittier CA. Uniform Building Code. International Conference of Building Officials (1997).
  • Carr AJ. RUAUMOKO, “Software for inelastic dynamic analysis”, Department of Civil Engineering, University of Canterbury, New Zealand (2000).
  • XTRACT. Cross Sectional Analysis of Components, V6.2.0 Imbsen Software Systems http://www.imbsen.com/xtract.htm Park, Y-J., and Ang, A.H-S., "Mechanistic seismic damage model for reinforced concrete", Journal of Structural Engineering, ASCE, No. ST4, 985: 1111; 722-739.
There are 24 citations in total.

Details

Primary Language English
Journal Section Civil Engineering
Authors

Mehmet Komur

Turan Karabork

Ibrahim Deneme

Publication Date November 25, 2011
Published in Issue Year 2011 Volume: 24 Issue: 3

Cite

APA Komur, M., Karabork, T., & Deneme, I. (2011). Nonlinear Dynamic Analysis of Isolated and Fixed-Base Reinforced Concrete Structures. Gazi University Journal of Science, 24(3), 463-475.
AMA Komur M, Karabork T, Deneme I. Nonlinear Dynamic Analysis of Isolated and Fixed-Base Reinforced Concrete Structures. Gazi University Journal of Science. November 2011;24(3):463-475.
Chicago Komur, Mehmet, Turan Karabork, and Ibrahim Deneme. “Nonlinear Dynamic Analysis of Isolated and Fixed-Base Reinforced Concrete Structures”. Gazi University Journal of Science 24, no. 3 (November 2011): 463-75.
EndNote Komur M, Karabork T, Deneme I (November 1, 2011) Nonlinear Dynamic Analysis of Isolated and Fixed-Base Reinforced Concrete Structures. Gazi University Journal of Science 24 3 463–475.
IEEE M. Komur, T. Karabork, and I. Deneme, “Nonlinear Dynamic Analysis of Isolated and Fixed-Base Reinforced Concrete Structures”, Gazi University Journal of Science, vol. 24, no. 3, pp. 463–475, 2011.
ISNAD Komur, Mehmet et al. “Nonlinear Dynamic Analysis of Isolated and Fixed-Base Reinforced Concrete Structures”. Gazi University Journal of Science 24/3 (November 2011), 463-475.
JAMA Komur M, Karabork T, Deneme I. Nonlinear Dynamic Analysis of Isolated and Fixed-Base Reinforced Concrete Structures. Gazi University Journal of Science. 2011;24:463–475.
MLA Komur, Mehmet et al. “Nonlinear Dynamic Analysis of Isolated and Fixed-Base Reinforced Concrete Structures”. Gazi University Journal of Science, vol. 24, no. 3, 2011, pp. 463-75.
Vancouver Komur M, Karabork T, Deneme I. Nonlinear Dynamic Analysis of Isolated and Fixed-Base Reinforced Concrete Structures. Gazi University Journal of Science. 2011;24(3):463-75.