Earticle

초록

영어

In designing a railroad bridge, the fatigue is one of the main factors to be considered for ensuring safe operation. Especially, for a new type of a structural member, which has not been adopted to railroad bridges, the fatigue performance should be checked. In this paper, the fatigue characteristics of an IT girder are examined. The IT girder is a new type of a prestressed concrete girder which has two prestressed H-beams in the top of the girder to give the girder additional sectional capacity. To obtain the fatigue performance, a 10m IT girder specimen is designed, and a repeated load test is performed by applying the load cyclically two million times. The magnitude of the repeated load is determined considering the stress level under the service condition. During the test, static load tests are performed to identify the stiffness degradation. The fatigue performance of the girder is checked according to the Japanese and the CEB-FIB design codes. The fatigue test result shows that the IT girder satisfies both design codes.

목차

Abstract
 I. 서론
 II. 피로관련 설계기준
  1. 국내기준
  2. 미국기준
  3. 일본기준
  4. 유럽기준
 III. 피로시험체 설계 및 실험
  1. 피로시험체의 설계
  2. 실험 장비 및 장치
  3. 피로실험
 IV. 피로실험 결과 및 성능 평가
  1. 피로실험 결과
  2. 피로성능 평가
 V. 결론
 참고문헌

키워드

저자

• 최상현 [ Choi, Sang-hyun | 한국철도대 학 철도시설토목과 교수 ]
• 이창수 [ Lee, Chang-soo | 서울시립대학교 토목공학과 교수 ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국재난정보학회논문집 [Journal of The Korean Society of Disaster Information]

• 간기

  계간

• pISSN

  1976-2208

• 수록기간

  2005~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 338 DDC 361