The paper presents the damage estimation of bridge structures in Daegu city based on the scenario-based earthquakes. Since the fragility curves for domestic bridge strucures are limited, the Hazus methodology is employed to derive the fragility curves and estimate the damage. A total of four earthuquake scenarios near Daegu city are assumed and structure damage is investigated for 81 bridge structures. The seismic fragility function and damage level of each bridge had adopted from the analytical method in HAZUS and then, the damage probability using seismic fragility function for each bridge was evaluated. It was concluded that the seismic damage to bridges was higher when the magnitude of the earthquake was large or nearer to the epicenter.

Abstract
 1. 서론
 2. 교량 형식의 분류
 3. 지진 시나리오 선정 및 응답 가속도예측
  3.1 국내 내진 설계 기준
  3.2 지진 시나리오 선정
 4. 교량별 지진 취약도 함수 및 지진피해 분석
  4.1 지진 취약도 함수
  4.2 교량별 지진 피해 분석
 5. 결론
 References

• 김시윤(계명대학교 건축공학전공) | Siyun Kim (Dept. of Architectural Engineering, Keimyung Univ.)
• 김승직(계명대학교 건축공학전공) | Sung Jig Kim (Dept. of Architectural Engineering, Keimyung Univ.) 교신저자
• 장준호(계명대학교 토목공학전공) | Chunho Chang (Dept. of Civil Engineering, Keimyung Univ.)