한국지진공학회논문집 (Journal of the Earthquake Engineering Society of Korea)

  • 제23권5호
  • /
  • Pages.261-268
  • /
  • 2019
  • /
  • 1226-525X(pISSN)
  • /
  • 2234-1099(eISSN)
한국지진공학회 (Earthquake Engineering Society of Korea)
권호 표지
DOI QR코드

DOI QR Code

H형 주탑 2면 사장교의 지진 안전성 평가지표 개발

Development of Seismic Safety Evaluation Indices for Dual-Plane, Cable-stayed Bridges With H-type Pylons

  • 투고 : 2019.01.01
  • 심사 : 2019.08.05
  • 발행 : 2019.09.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

This paper proposes damage indices efficient on evaluating the seismic safety of cable-stayed bridges, especially dual-plane, cable-stayed bridges with H-type pylons. The research assumes that the location of accelerometers is already defined as given in the 2017 Ministry of the Interior and Safety (MOIS) guideline. In other words, the paper does not attempt to suggest optimal sensor location for the seismic safety evaluation of cable-stayed bridges. The proposed damage indices are based on those for building structures widely applied in the field already. Those include changes in natural frequencies and changes in relative lateral displacements. In addition, the study proposes other efficient damage indices as the rotation changes at the top of pylons and in the midspan of the girder system. Sensitivity analysis for various damage indices is performed through dynamic analysis using selected earthquake ground motions. The paper compares the effectiveness of the damage indices.

키워드

참고문헌

  1. Chiu JM, Kim SG. Estimation of regional seismic hazard in the Korean peninsula using historical earthquakes data between A.D.2 and 1995. Bulletin of the seismological society of America. 2004 Feb;94(1):269-284. https://doi.org/10.1785/0120010256
  2. Korea Meteorological Administration. Earthquake Report 2017. c2018 Apr.
  3. Anastasopoulos I, Anastasopoulos P.Ch, Agalianos A, Sakellariadis L. Simple method for real-time seismic damage assessment of bridges. Soil dynamics and earthquake engineering. 2015;78:201-212. https://doi.org/10.1016/j.soildyn.2015.07.005
  4. Liel AB, Haselton CB. Lessons learned from seismic collapse assessment of buildings for evaluation of bridge structures. Lifeline earthquake engineering in a multihazard environment ASCE. 2009;1151-1162.
  5. Zhu L, Elwood KJ, Haukaas T. Classification and seismic safety evaluation of existing reinforced concrete columns. Journal of structural engineering, ASCE. 2007 Sep;133(9).
  6. Carreno ML, Cardona OD, Eeri M, Barbat AH. Computational tool for post-earthquake evaluation of damage in buildings. Earthquake spectra. 2010 Feb;26(1):63-86. https://doi.org/10.1193/1.3282885
  7. Ministry of the Interior and Safety. Installation and operation standard of seismic accelerometer sensors 2017, article 22, location and number of seismic acceleration sensors installations. c2017; p. 6.
  8. Ministry of Land Infrastructure and Transport. the Limit-State based Bridge Design Specification - Cable Bridge 2016. c2016;9-1-9-19.
  9. Yoon SW, Park Y, Ji JH, Lim JH, Jang DW. Vibration characteristics of a three-story reinforced concrete building before and after damage. Journal of Korean association for spacial structures. 2009 Sep;9(3):59-66.