Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Relationship between Earthquake Damage and the Design Eccentricity of Building with Planar Irregularity

평면 비정형 건물의 설계편심과 지진 손상도의 상관관계에 관한 연구

  • Received : 2013.07.03
  • Accepted : 2013.08.19
  • Published : 2013.09.02
Download PDF
⟨ Previous Next ⟩

Abstract

In the Korean Building Code (KBC), the Design Eccentricity involves the torsional amplification factor (TAF), and the inherent and accidental eccentricities. When a structure of less than 6-stories and assigned to seismic design category C or D is designed using equivalent static analysis method, both KBC-2006 and KBC-2009 use the TAF but apply different calculation methods for the of design eccentricity. The design eccentricity in KBC-2006 is calculated by multiplying the sum of inherent eccentricity and accidental eccentricity at each level by a TAF but that in KBC-2009 is calculated by multiplying only the accidental eccentricity by a TAF. In this paper, the damage indices of a building with planar structural irregularity designed by different design eccentricities are compared and the relationship between the earthquake damage and design eccentricity of the building is evaluated. On the basis of this study, the increment of design eccentricity results in the decrement of final eccentricity and global damage index of structure. It is observed that design eccentricity in KBC-2006 reduces the vulnerability of torsional irregular building compared to design eccentricity in KBC-2009.

Keywords

References

  1. Architectual Institute of Korea, Korean building code, Architectual Institute of Korea; c2006, p.121.
  2. Architectual Institute of Korea, Korean building code, Architectual Institute of Korea; c2009, p.106.
  3. ASCE/SEI 7-10, Minimum Design Loads for Buildings and Other Structures, American Society of Civil Engineers; c2010, p.80-92.
  4. Structural Engineers Association of California, Recommended lateral force requirements and commentary, San Francisco; c1999.
  5. International Conference of Building Officials, Uniform Building Code, California, USA; c1991.
  6. International Conference of Building Officials, Uniform Building Code, California, USA; c1994.
  7. International Conference of Building Officials, Uniform Building Code, California, USA; c1997; p.2-15.
  8. Federal Emergency Management Agency, NEHRP guidelines for the seismic rehabilitation of buildings, Report FEMA 273, Washington D.C.; c1997; p.3-2.
  9. Federal Emergency Management Agency, NEHRP recommended provisions for seismic regulations for new buildings and other structures, Report FEMA 302, Washington D.C.; 1997, p.66.
  10. Structural Engineers Association of California, Recommended lateral force requirements and commentary, San Francisco; c1999; p.13, p.112, p.121.
  11. Federal Emergency Management Agency, Prestandard and commentary for the seismic rehabilitation of buildings, Report FEMA 356, Washington D.C.; c2000; p.3-3.
  12. Federal Emergency Management Agency, NEHRP recommended provisions for seismic regulations for new buildings and other structures, Report FEMA 368, Washington D.C.; c2000; p.76.
  13. ASCE/SEI 7-02, Minimum Design Loads for Buildings and Other Structures, American Society of Civil Engineers; c2002; p.148.
  14. Federal Emergency Management Agency, NEHRP recommended provisions for seismic regulations for new buildings and other structures, Report FEMA 450, Washington D.C.; c2003; p.90.
  15. ASCE/SEI 7-05, Minimum Design Loads for Buildings and Other Structures, American Society of Civil Engineers; 2006; p.130, p.214.
  16. Jeong SH, Lee KH. A study on the relationship between the eccentricity and the level of damage in the seismic response of buildings with plan irregularity. Earthquake Engineering Society of Korea. 2010 Jun;14(3):49-57.
  17. Stathopoulos KG, Anagnostopoulos SA. Accidental design eccentricity: Is it important for the inelastic respose of buildings to strong motion. Soil Dynamics and Earthquake Engineering. 2010 Sep;30(9):782-797. https://doi.org/10.1016/j.soildyn.2009.12.018
  18. Jeong SH, Elnashai AS. Analytical modeling of inelastic seisimic response of RC structure. J. Struct. Eng. 2006:132(9);1482-1490. https://doi.org/10.1061/(ASCE)0733-9445(2006)132:9(1482)
  19. Lee KH, Jeong SH. A study on the static eccentricities of buildings designed by different design eccentricities. Earthquake Engineering Society of Korea. 2012 Oct;16(5):33-40. https://doi.org/10.5000/EESK.2012.16.5.033
  20. Elanshai AS, Papanikolaou V, Lee DH. ZEUS-NL Users Manual, University of Illinois at Urbana-Champaign/Mid-America Earthquake Center; c2002.
  21. Elnashai AS, Elghazouli AY. Performance of composite steel/ concrete membersunder earthquake loading, part I: analytical model. Earthquake Engineering and Structural Dynamics. 1993: 22(4):314-345.
  22. Elnashai AS, Izzuddin BA. Modeling of material nonlinearities in steel structures subjected to transient dynamic loading. Earthquake Engineering and Structural Dynamics. 1993;22(6):509-532. https://doi.org/10.1002/eqe.4290220604