Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

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

DOI QR Code

Ductility Demand for Short-period Structures Excited by Ground Accelerations Similar to Gyeong-ju Earthquakes

경주지진과 유사한 특성을 가지는 지반가속도로 가진된 단주기 구조물 변위연성도 평가

  • Roh, Ji Eun (Department of Architectural Engineering, Dankook University) ;
  • Lee, Sang Hyun (Department of Architectural Engineering, Dankook University) ;
  • Seo, Jun Won (Department of Architectural Engineering, Dankook University) ;
  • Kim, Dong Kwan (Institute of Technology, SEN Structural Engineering Co, Ltd.)
  • 노지은 (단국대학교 건축공학과) ;
  • 이상현 (단국대학교 건축공학과) ;
  • 서준원 (단국대학교 건축공학과) ;
  • 김동관 (센구조 연구소, 연구개발부)
  • Received : 2016.11.21
  • Accepted : 2016.12.06
  • Published : 2016.12.30
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, time and frequency domain characteristics of Gyeong-ju earthquakes were investigated, and nonlinear time history analyses were conducted for bi-linear hysteretic structures excited by short-duration ground accelerations. Previous studies showed that larger inelastic displacements than the peak displacement of the corresponding elastic system were observed especially for the structures with structural period shorter than 0.3s, and the similar results could be obtained when long-duration ground accelerations were used as excitation loads. For the short-duration earthquakes, however, the inelastic displacements were not so large and almost identical to the peak elastic displacements.

Keywords

References

  1. Park JH. Comparison of Waveform & Spectrum of Ground Accelerations Recorded Around the Epicenter of Gyeong-Ju Earthquakes, 2016 International Workshop and Conference Commemorating the 20th Anniversary of the Earthquake Engineering Society of Korea; Special Session for Gyeong-Ju Earthquake. c2016 Sep.
  2. LEE CH. Damage Potentials of the 912 M 5.8 Gyeong-Ju Earthquake and Earthquake Engineering Implications. 2016 International Workshop and Conference Commemorating the 20th Anniversary of the Earthquake Engineering Society of Korea; Special Session for Gyeong-Ju Earthquake. c2016 Sep.
  3. Sh oji Y, Tanii K, Kamiyama M. The Duration and Amplitude Characteristics of Earthquake Ground Motions with Emphasis on Local Site Effects. 13th World Conference on Earthquake Engineering Vancouver. c2004 Aug. 436 p.
  4. Yun JK, Kim DS, Bang ES. Development of SIte Classification System and Modification of Design Response Spectra considering Geotechnical Site Characteristics in Korea (1) - Problem Statement of the Current Seismic Design Code. 2006;10(2):39-50.
  5. Park HG, Kim DK, Lee KK, Kim DS. Nonlinear Seismic Response Analysis for Shallow Soft Soil Deposits, EESK J. Earthquake Eng. 2006;14(5):1-12.
  6. Architectural Institute of Korea. Korea Building Design Code 2016 c2016.
  7. Pacific Earthquake Engineering Research Center [Internet]. Available from: http://peer.berkeley.edu
  8. Usgs [Internet]. Available from: www.usgs.gov
  9. Internet Site for European Strong-Motion Data [Internet]. Available from: http://www.isesd.hi.is/
  10. Naeim F, Alimoradi A, Pezeshk S. Selection and scaling of ground motion time histories for structural design using genetic algorithms, Earthquake Spectra. 2004; 20:413-426. https://doi.org/10.1193/1.1719028
  11. Newmark NM, Hall WJ. Seismic Design Criteria for Nuclear Reactor Facilities. Report 46. Building Practices for Disaster Mitigation, National Bureau of Standards. c1973. p.209-236.
  12. Nassar AA, Krawinkler H. Seismic Demands for SDOF and MDOF Systems. Report No.95. The John A. Blume Earthquake Engineering Center, Stanford University. c1991.
  13. Miranda E. Site-Dependent Strength Reduction Factors, Journal of Structural Engineering, ASCE. 2007;119(12):3503-3519. https://doi.org/10.1061/(ASCE)0733-9445(1993)119:12(3503)
  14. Song JK. Evaluation of Inelastic Displacement Ratios for Smooth Hysteretic Behavior Systems. EESK J. Earthquake Eng. 2011;15(3):11-26.
  15. Cho SG, Park WK, J YH. Comparative Evaluation of Formulas of Strength Reduction Factors for the Generation of an Inelastic Demand Spectrum. EESK J. Earthquake Eng. 2011;15(6): 33-34.
  16. Chopra AK. Dynamics of Structures, 2nd Edition. Prentice Hall, c2000.
  17. NEHRP. Improvement of Nonlinear Static Seismic Analysis, procedures, FEMA 440, Part I (Provisions). and Part 2 (Commentary). c2005.