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      강박스거더교 다이아프램부의 온도 및 응력 분배 거동 = Temperature and Stress Distribution in Diaphragm of Steel Box Girder Bridges

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      https://www.riss.kr/link?id=T12647302

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      다국어 초록 (Multilingual Abstract) kakao i 다국어 번역

      The economy and efficiency of the diaphragm part has been highly demanded in steel box girder bridge design. In this study, experimental tests were performed to measure both temperature and stress distribution of the diaphragm part in a 4 span steel box girder bridge which was under constructions.
      By carefully analyzing the results, the temperature loads were determined with a numerical formula. Also, the proper length of the vertical stiffener was presented here.
      And the determined temperature distribution and the proper length of the vertical stiffener were compared with the results of FE analysis. Then the temperature loads presented here were different from EURO code. And the proper length of the vertical stiffener was similar to ones of previous studies
      It was thought that the studied results could provide the basis for an economical and efficient design of the diaphragm part of steel box girder bridges and for the classified temperature loads in bridge design.
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      The economy and efficiency of the diaphragm part has been highly demanded in steel box girder bridge design. In this study, experimental tests were performed to measure both temperature and stress distribution of the diaphragm part in a 4 span steel b...

      The economy and efficiency of the diaphragm part has been highly demanded in steel box girder bridge design. In this study, experimental tests were performed to measure both temperature and stress distribution of the diaphragm part in a 4 span steel box girder bridge which was under constructions.
      By carefully analyzing the results, the temperature loads were determined with a numerical formula. Also, the proper length of the vertical stiffener was presented here.
      And the determined temperature distribution and the proper length of the vertical stiffener were compared with the results of FE analysis. Then the temperature loads presented here were different from EURO code. And the proper length of the vertical stiffener was similar to ones of previous studies
      It was thought that the studied results could provide the basis for an economical and efficient design of the diaphragm part of steel box girder bridges and for the classified temperature loads in bridge design.

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      목차 (Table of Contents)

      • Ⅰ. 서 론 1
      • 1.1 연구배경 1
      • 1.2 연구동향 3
      • 1.3 연구 목표 및 내용 5
      • Ⅰ. 서 론 1
      • 1.1 연구배경 1
      • 1.2 연구동향 3
      • 1.3 연구 목표 및 내용 5
      • Ⅱ. 설계 온도변수와 지점부 응력분배 7
      • 2.1 온도응력 7
      • 2.2 온도하중 9
      • 2.2.1 도로교 설계기준․해설(2008) 10
      • 2.2.2 AASHTO Standard Specifications for Highway Bridges 12
      • 2.2.3 AASHTO LRFD Bridge Design Specifications 13
      • 2.2.4 Eurocode 17
      • 2.2.5 기후 변화에 따른 온도하중의 급속변화 22
      • 2.3 온도 응력분배 거동 24
      • 2.4 지점부 응력분배 거동 26
      • Ⅲ. 변형률 및 온도 측정 27
      • 3.1 대상교량 27
      • 3.2 측정 장비 및 측정 위치 28
      • 3.3 측정 방법 및 조건 30
      • 3.4 측정 결과 33
      • 3.4.1 다이아프램부 온도측정 결과 33
      • 3.4.2 수직보강재 응력 35
      • 3.4.3 다이아프램부 응력 36
      • Ⅳ. 측정 결과 분석 38
      • 4.1 다이아프램의 상하연 온도분포 38
      • 4.1.1 대기 온도와 부재 온도의 상관관계 38
      • 4.1.2 Euro Code와 회귀분석식의 비교 40
      • 4.2 수직보강재 연직방향 응력 분포 43
      • 4.3 수직보강재간 응력 분배 효과 44
      • 4.4 수직보강재와 다이아프램의 응력분포 45
      • Ⅴ. 수직보강재 길이의 효율성 평가 46
      • 5.1 측정결과에 의한 효율성 평가 46
      • 5.2 구조해석을 통한 효율성 평가 49
      • Ⅵ. 해석을 통한 온도차하중 평가 54
      • 6.1 온도차하중 평가 해석모델 54
      • 6.2 온도차하중 해석 결과 분석 56
      • Ⅵ. 결 론 58
      • 참고문헌 60
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