DOI QR코드

DOI QR Code

지하철 1~4호선 내진성능 평가절차 및 보강방향

Seismic Performance Evaluation Procedure and Reinforcement Direction of Subway Lines 1~4

  • 장원락 (서울교통공사 토목1사업소) ;
  • 정지승 (동양대학교 건설공학과)
  • 투고 : 2019.09.23
  • 심사 : 2019.10.29
  • 발행 : 2019.11.30

초록

본 논문에서는 도시철도 내진설계 기준에 의거하여 내진설계가 되지 않은 기존 구조물에 대해서 2010년 4월부터 2013년 10월까지 시행된 지하철 1~4호선에 대해 내진성능 평가방안을 연구하였고, 2012년 12월부터 2018년 12월까지 시행한 내진성능 보강공사 실시설계를 통하여 내진보강이 필요한 시설물에 대한 내진성능 보강방향에 대해 정리하였다. 평가결과 1~4호선 141.5km 중 53.2km(총 사업비 3,220억원)가 내진보강이 필요한 것으로 검토 되었으며, 최종적으로 2020년까지 지진규모 6.5에 견딜 수 있게 내진율 100% 확보를 목표하고 있다. 본 논문은 향후 도시철도의 내진성능을 평가하고 보강하기 위한 기초 연구자료로 활용될 수 있을 것으로 판단된다.

In this paper, the seismic performance evaluation of the subway lines 1~4 conducted from April 2010 to October 2013 for the existing structures that were not seismically designed based on the seismic design criteria of urban railways was studied. The detailed design of seismic reinforcement for the facilities requiring seismic reinforcement was summarized through the detailed design of the seismic reinforcement construction conducted from March to December 2018. As a result of the evaluation, 53.2km (total project cost of 322 billion won) of 141.5km of Lines 1~4 were considered to require seismic reinforcement, and finally, the company aims to secure a 100% earthquake-proof rate to withstand earthquake-scale 6.5 by 2020. This paper can be used as basic research data to evaluate and reinforce seismic performance of urban railways in the future.

키워드

참고문헌

  1. Republic of Korea, Ministry of Land, Earthquake Resistance Design Regulations for Subway Structures, 2017
  2. ASCE, Dynamic and Static Design Considerations for Underground Chambers, 1983
  3. AASHTO, Standard Specifications for Highway Bridges, 16th ed, 1996
  4. Priestley, M. J. N., Seible, F. and Calvi, G. M., Seismic Design and Retrofit of Bridges, John Wiley & Sons, 1995.
  5. Republic of Korea, Ministry of Land, Design Criteria for Railroad : Bridges, 2013.
  6. British Standard, Eurocode 2 part 1-1 : Design of Concrete Structures, 2004.
  7. Journal of the Earthquake Engineering Society of Korea Vol. 10, No. 2, Development of Site Classification System and Modification of Design Response Spectra considering Geotechnical Site Characteristics in Korea (II), 2006. https://doi.org/10.5000/eesk.2006.10.2.021