표제지
ABSTRACT
목차
제1장 서론 12
1.1. 연구의 배경 및 목적 12
1.2. 연구내용 16
제2장 상세평가 우선순위 결정을 위한 예비평가와 분석 20
2.1. 개요 20
2.1.1. 일반사항 26
2.1.2. 기존 내진성능 예비평가 현황 분석 27
2.2. 평가방법 37
2.2.1. 지진도 37
2.2.2. 취약도 38
2.2.3. 영향도 56
2.2.4. 내진그룹화 방안 56
2.3. 평가결과 및 분석 58
2.3.1. 취약도평가 항목별 분포 58
2.3.2. 내진그룹 분포 59
2.3.3. 내진성능 상세평가 대상시설물 선정결과 61
제3장 내진성능평가를 위한 현장조사 64
3.1. 개요 64
3.1.1. 현장조사 교량 현황 64
3.1.2. 현장조사 수행흐름도 71
3.2. 조사방법 72
3.2.1. 외관조사 72
3.2.2. 재료특성조사 74
3.3. 조사결과 78
3.3.1. 외관조사 78
3.3.2. 재료특성조사 81
제4장 공급역량과 소요역량 비교를 통한 상세평가와 분석 94
4.1. 개요 94
4.2. 평가방법 95
4.2.1. 지진하중 및 조합탄성지진력 95
4.2.2. 구성요소의 내진성능평가 99
4.2.3. 내진성능 상세평가방법 요약 123
4.3. 평가결과 및 분석 131
제5장 종합결론 141
참고문헌 145
Table 1.1. Difference between the time of design and the current standard 17
Table 2.1. Seismic rating of railway 21
Table 2.2. Seismic zone classification 21
Table 2.3. Earthquake risk coefficient, I 22
Table 2.4. Classification of soils 23
Table 2.5. Coefficient of soil 23
Table 2.6. Preliminary evaluation method of seismic performance and abroad (1/2) 27
Table 2.7. Preliminary evaluation method of seismic performance and abroad (2/2) 28
Table 2.8. Earthquake rating criteria 29
Table 2.9. Evaluation method and score according to damage type of bridge 34
Table 2.10. Evaluation score according to importance of bridge 36
Table 2.11. Seismic classification class of bridges 36
Table 2.12. Earthquake degree grade standard 37
Table 2.13. Vulnerability assessment method and score for each component... 54
Table 2.14. Vulnerability assessment method and score for each component... 55
Table 2.15. Impact assessment result 56
Table 2.16. Seismic group classification criteria of bridges 56
Table 2.17. Seismic Performance Preliminary Evaluation Results 59
Table 2.18. Seismic performance preliminary evaluation result and detailed... 62
Table 2.19. Seismic performance preliminary evaluation result and detailed... 63
Table 3.1. Bridges surveyed general Information (1/6) 65
Table 3.2. Bridges surveyed general Information (2/6) 66
Table 3.3. Bridges surveyed general Information (3/6) 67
Table 3.4. Bridges surveyed general Information (4/6) 68
Table 3.5. Bridges surveyed general Information (5/6) 69
Table 3.6. Bridges surveyed general Information (6/6) 70
Table 3.7. Field survey method 73
Table 3.8. Correction value of rebound hardness according to striking... 76
Table 3.9. Age correction factor 77
Table 3.10. Appearance survey result (1/3) 78
Table 3.11. Appearance survey result (2/3) 79
Table 3.12. Appearance survey result (3/3) 80
Table 3.13. Concrete compressive strength investigation results (1/7) 81
Table 3.14. Concrete compressive strength investigation results (2/7) 82
Table 3.15. Concrete compressive strength investigation results (3/7) 83
Table 3.16. Concrete compressive strength investigation results (4/7) 84
Table 3.17. Concrete compressive strength investigation results (5/7) 85
Table 3.18. Concrete compressive strength investigation results (6/7) 86
Table 3.19. Concrete compressive strength investigation results (7/7) 87
Table 3.20. Reinforcement status survey results (1/6) 88
Table 3.21. Reinforcement status survey results (2/6) 89
Table 3.22. Reinforcement status survey results (3/6) 90
Table 3.23. Reinforcement status survey results (4/6) 91
Table 3.24. Reinforcement status survey results (5/6) 92
Table 3.25. Reinforcement status survey results (6/6) 93
Table 4.1. Ultimate strain according to lap joint ratio 101
Table 4.2. Detailed evaluation criteria for seismic performance 131
Table 4.3. Seismic performance evaluation results (1/4) 132
Table 4.4. Seismic performance evaluation results (2/4) 133
Table 4.5. Seismic performance evaluation results (3/4) 134
Table 4.6. Seismic performance evaluation results (4/4) 135
Table 4.7. Seismic performance evaluation result aggregation 139
Fig 1.1. Distribution chart of epicenter stations and trends of... 13
Fig 1.2. History of seismic design of facilities in Korea 14
Fig 2.1. Design Response Spectrum 25
Fig 2.2. Seismic performance evaluation procedure 26
Fig 2.3. Seismic performance grouping method 31
Fig 2.4. Preliminary Evaluation Method of Seismic Performance of Railway Bridge 35
Fig 2.5. Support length(N) 39
Fig 2.6. Minimum support length(N) regulation dimensions 40
Fig 2.7. Shear strength coefficient of concrete with displacement ductility 44
Fig 2.8. Load acting on foundation 47
Fig 2.9. Evaluation location of stress 48
Fig 2.10. Distribution of damage by earthquake 50
Fig 2.11. Damage distribution of bridge components by earthquake 51
Fig 2.12. Changes due to adjustment of the supporting part of the... 52
Fig 2.13. Adjusting the Vulnerability Index 53
Fig 2.14. Seismic grouping scheme 57
Fig 2.15. Distribution of damage by earthquake 58
Fig 2.16. Damage distribution of bridge components by earthquake 59
Fig 2.17. Seismic performance preliminary evaluation results 60
Fig 2.18. Distribution by pier type 60
Fig 3.1. Distribution of site survey bridges 64
Fig 3.2. Field survey flow chart 71
Fig 3.3. Field survey method 73
Fig 3.4. Investigation method of material characteristics 74
Fig 3.5. RC Radar measurement method 77
Fig 4.1. Seismic performance evaluation flow of existing bridges 95
Fig 4.2. Moment-curvature relationship curve(Initial yield bending strength,... 100
Fig 4.3. Curvature distribution and displacement of cantilever piers 102
Fig 4.4. Coefficient to reduce concrete shear strength according to feed... 104
Fig 4.5. Determination of section strength and feed displacement ductility of... 107
Fig 4.6. Yield and Ultimate Displacements of Circular and Rectangular... 108
Fig 4.7. Yield and Ultimate displacement of single axial reinforced concrete... 109
Fig 4.8. Yield and Ultimate displacement of wall piers with axial... 110
Fig 4.9. Correlation between the section strength ratio(Rs) and the...(이미지참조) 113
Fig 4.10. Failure mode of anchor due to shear load 116
Fig 4.11. Estimate AVco(이미지참조) 118
Fig 4.12. Estimate the projection area and AVc of a single anchor and...(이미지참조) 119
Fig 4.13. Estimation of projected area(ANc)(이미지참조) 120
Fig 4.14. Support length(Nc) of bridge(이미지참조) 122
Fig 4.15. Capacity calculation flow of existing bridges 124
Fig 4.16. Demand calculation flow of existing bridges 125
Fig 4.17. Seismic performance evaluation results (1/3) 136
Fig 4.18. Seismic performance evaluation results (2/3) 137
Fig 4.19. Seismic performance evaluation results (3/3) 138
Fig 4.20. Seismic performance evaluation result aggregation 140