한국안전학회지 (Journal of the Korean Society of Safety)

  • 제26권3호
  • /
  • Pages.52-58
  • /
  • 2011
  • /
  • 1738-3803(pISSN)
  • /
  • 2383-9953(eISSN)
한국안전학회 (The Korean Society of Safety)
권호 표지
DOI QR코드

DOI QR Code

장주기구조물의 탄소성응답특성을 고려한 지진안전성 평가

Seismic Safety Assessment of Long Period Structures Base on Elastic/Inelastic Response Characteristics

  • 방명석 (충주대학교 안전공학과)
  • Bang, Myung-Seok (Department of Safety Engineering, Chungju National University)
  • 투고 : 2011.03.19
  • 심사 : 2011.06.08
  • 발행 : 2011.06.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

지진별 특성이 사회간접시설에 미치는 영향을 평가하는 것은 내진성능의 향상을 위해 중요한 검토사항이다. 이 연구에서는 근거리 및 원거리 지진의 특성을 고려하여 장주기 골조구조물의 구조거동을 합리적으로 평가하는 방법을 비교분석하였다. 이를 위해서 입력지진동의 영향을 명확하게 반영할 수 있는 대상구조물을 선정하여 탄성 및 비탄성 시간이력해석을 수행하였다. 수치해석결과를 바탕으로 지진특성에 따른 전단력, 모멘트, 가속도 및 변위응답의 분포양상을 검토하고 차이점을 분석하였다. 또한 대상구조물의 비탄성 거동을 파악하기 위해서 소성힌지의 발생순서를 모사운용하여 붕괴발생모드를 해석하였다. 이 연구결과는 장주기 골조구조물의 내진안전성 평가를 위한 효율적인 방법을 제시하고 근거리 지진의 안전성에 미치는 영향을 분석하였다.

The earthquake characteristic assessment of social overhead facilities would be an important examination issue for seismic capacity enhancement. This study is intended to reasonably evaluate the structural behavior of longperiod frame structures considering near-fault and far-fault earthquake characteristics. Elastic/inelastic time history analyses were performd by selecting the objective structure which can precisely reflect the effect of input ground motion. Based on the result of numerical analysis, we have investigated response aspects of shear force, moment, acceleration and displacement according to earthquake characteristics. Moreover, in order to understand the inelastic behavior of the objective structure, we have analyzed and compared collapse modes by considering the occurrence process of plastic hinges. The outcome of this research is expected to provide the basic information for the seismic safety assessment of long-period frame structures.

키워드

참고문헌

  1. M. S. Bang and S. H. Han, "A Study on Characteristics and Dynamic Response Spectrum of Near Fault Ground Motions", Journal of KOSOS, Vol. 20, No. 3, pp. 143-151, 2005.
  2. G. W. Housner and D. E. Hudson, "The Port Hueneme Earthquake of March 18, 1957", Bulletin of the Seismological Society of America, Vol. 48, No. 2, pp. 163-168, 1985.
  3. P. C. Jennings, "Enduring Lessons and Opportunities Lost from the San Fernando Earthquake of February 9, 1971", Earthquake Spectra, Vol. 13, No. 1, pp. 25- 53, 1997. https://doi.org/10.1193/1.1585930
  4. B. A. Bolt, "Discussions of Enduring Lessons and Opportunities Lost from the San Fernando Earthquake of February 9, 1971", Earthquake Spectra, Vol. 13, No. 3, pp. 545-547, 1997. https://doi.org/10.1193/1.1585963
  5. Korea Atomic Energy Research Institute (KAERI) (2003). "Characteristics of Near-Fault Ground Motions", Report ID KAERI/TR-2453, 2003.
  6. G. Q. Wang, X. Y. Zhou, Z. J. Ma and P. Z. Zhang, "Corrected Near Fault Recordings Caused by the 1999 Chi-Chi, Taiwan Earthquake", Bulletin of the Seismological Society of America, Vol. 9, No. 5, pp. 1358-1369, 2001.
  7. UBC Code (1991-1997), "Uniform Building Code, International Conference of Building Officials (ICBO)", Whittier, CA.
  8. Building Seismic Safety Council "NEHRP recommended provisions for the development of seismic regulations for buildings", FEMA-222, Washington, D C., 1994.
  9. SAP2000 Analysis reference Volume I, II, Computer and Structures Inc., 1997.
  10. K. Chopra, "Dynamics of Structures: Theory and Applications to Earthquake Engineering", Prentice Hall, Inc., 1995.