Journal of the Korea Convergence Society (한국융합학회논문지)

Korea Convergence Society (한국융합학회)
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Earthquake Damage Assessment of Buildings in Urban Area using Disaster Management Platform

재난관리플랫폼을 이용한 도심지 건물군의 지진피해평가

  • Jang, Sung-Hyun (Department of Civil Engineering, Keimyung University) ;
  • Kwon, Dong-Hee (Department of Civil Engineering, Keimyung University) ;
  • Hwang, Chan-Gyu (Dept. of Convergence Industry, Seoul Venture University) ;
  • Choi, Soo-Young (Geospatial Information Technology Institute, GEO C&I) ;
  • Chey, Min-Ho (Faculty of Architecture & Civil Engineering, Keimyung University)
  • 장성현 (계명대학교 토목공학과) ;
  • 권동희 (계명대학교 토목공학과) ;
  • 황찬규 (서울벤처대학원대학교 융합산업학과) ;
  • 최수영 (GEO C&I 공간정보기술연구소) ;
  • 최민호 (계명대학교 건축토목공학부)
  • Received : 2019.05.04
  • Accepted : 2019.06.20
  • Published : 2019.06.28
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Abstract

Because of its physical characteristics, earthquake has a great impact on a wide area in a short time, so it needs a resilience based seismic countermeasures to restore the community function. For this reason, in this study, the seismic damages of urban buildings were assessed stochastically by virtual earthquakes using public data information and disaster management program(Ergo-EQ). A geographical map reflecting geological characteristics of the target area was created with the buildings and topographic data in Dalseo-gu, Daegu City. In addition, an integrated database including building characteristics was modified to be linked with the Ergo-EQ program. The seismic damages for the buildings were evaluated through the exceedance probability of four different damage levels. From the damage results, it can be identified not only the seismic damage of each building, but also the major factors affecting earthquake damage.

지진은 물리적 특성 상 짧은 시간에 광범위한 지역에 큰 피해를 주는 만큼, 지역사회 기능 회복을 위한 복원력 관점의 지진대응 방안이 필요하다. 이를 위해 본 연구에서는 공공데이터포털정보와 재난관리프로그램(Ergo-EQ)을 이용하여 시나리오지진에 의한 도심지 건물들의 지진피해를 확률론적으로 평가하였다. 대구광역시 달서구 지역의 주요 건물들에 대한 지진피해평가 수행을 위해 해당 지역의 지형데이터를 활용하고 지역의 지질 및 지반 특성을 반영한 지형도를 작성하였다. 또한, 상기 건물들의 인프라 특성을 포함하는 통합데이터베이스를 Ergo-EQ 프로그램과 연동되도록 수정하고, 각 건물들에 대해 네 단계 손상수준 별 초과확률을 분석하여 각 건물의 손상도를 평가하였다. 일련의 피해분석 결과를 통해 각 건물별 지진손상도와 이의 영향 인자 특성을 확인하였다.

Keywords

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Fig. 1. 3D visualized seismic damage using Ergo-EQ

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Fig. 2. Data flow of distributed & parallel framework(Ergo-EQ)

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Fig. 3. Location of the epicenter adopted

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Fig. 4. PGA distribution of Dalseo-gu region(Scenario 1)

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Fig. 5. PGA distribution of Dalseo-gu region(Scenario 2)

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Fig. 6. Flowchart of damage assessment (Ergo-EQ)

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Fig. 7. Computing probabilities of damage states

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Fig. 8. Damage distribution of the buildings inDalseo-gu Region (scenario 1)

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Fig. 9. Mean damage VS. year of built (scenario 1)

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Fig. 10. Mean damage VS. year of built (scenario 2)

Table 1. Number of earthquakes per year (Earthquake annals of the Korea meteorological administration, 2017)

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Table 2. Fault information

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Table 3. Scenario earthquakes used

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Table 4. Building information (Ergo-EQ)

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Table 5. Description of damage states

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Table 6. Probabilistic model for structural damage ratio

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Table 7. Mean damage VS. built year and story

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Table 8. Mean damage VS. built year and total floor area

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