강철도교에 대한 외부 후긴장 보강공법의 적용에 관한 실험 및 해석적 연구

다국어 초록 (Multilingual Abstract)

It analyzed the mechanical behaviors of non-ballasted railway bridge (steel plate girder type) with ballast reinforced on the finite element analysis, field test and laboratory test for the static and dynamic responses. The major objective of this study is to investigate the effects and application of reinforcement for steel plate girder railway bridge by the external post-tensioning method. The reinforcement of non-ballast railway bridge had obviously stable dynamic behaviors due to the additional dead force which was ballast. But in case of static behaviors, static displacements and stresses had increased nearly the allowable values. Therefore we analyzed the mechanical behaviors of non-ballasted railway bridge with ballast reinforced and external post-tensioning reinforced on the finite element analysis and laboratory test for the static and dynamic behavior. As a result, the reinforcement of ballasted railway bridge the external post-tensioning method are obviously effective for the additional dead force which is ballast. The analytical and experimental study are carried out to investigate the post-tension force decrease bending behavior and deflection in composite bridge for serviceability. The servicing railway bridge with ballast reinforced has need of the reasonable reinforcement measures which could be reducing the effect of additional dead load that degradation phenomenon of structure by an unusual stresses and a drop durability.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 대상교량 및 현장측정
• 3. 유한요소해석
• 4. 분석 결과 및 고찰
• 5. 실험결과 및 분석
• 6. 결론
• 참고문헌

참고문헌 (Reference)

1 "합성형교의 외부 후 긴장력 횡분배 거동에 대한 실험 및 해석적 연구" 22 (22): 1469-1479, 2002

2 "외부 후긴장에 따른 합성보 거동에 대한 실험적 연구" 2001

3 "외부 후긴장 공법의 적용에 따른 공용적인 판형교 거동의 실험적 연구" 2000

4 "외부 후 직선긴장 보강공법적용에 따른 합성형의 동적거동" 2003

5 "열차유형에 따른 판형교의 정적 거동에 대한 연구" 2003

6 "무도상판형교의 횡방향 동적거동 특성 분석을 위한 실험적 연구" 2003

7 "무도상판형교의 횡거동분석을 위한 주행하중 매개변수 연구" 2003

8 "무도상판형교의 고유진동특성에 관한 연구" 2002

9 "국내 강철도교의 열화손상 사례분석" 2002

10 "강철도교에 대한 외부 후긴장 보강공법의 적용에 관한 연구" 2004

11 "강철도교에 대한 외부 후긴장 보강공법의 적용에 관한 연구" 16 (16): 486-491, 2005

12 "Prestressed Steel Bridge Theory and Design" 1990.

13 "Finite Element Modelling for Stress Analysis" Inc. 105-144, 1994.pp.1-40

14 "Bridge Deck Behavior" 1-221, 1991

15 "Bridge Analysis Simplified" Mcgraw-Hill Book 1 159-149 196, 1985