지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 이성철
- 발행연도
- 2015
- 저작권
- 동국대학교 논문은 저작권에 의해 보호받습니다.
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초록· 키워드
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One of the most important considerations in designing steel box girders bridges is local buckling of thin-plates elements such as compression flanges and webs. Compression flanges are often reinforced with longitudinal and transverse stiffeners in order to increase the local buckling strength under bending. However, installing the stiffeners for compression flanges lead to a significant increase in fabrication costs for steel box girder bridges. Also, attaching the stiffeners through welding may lessen the fatigue strength and durability of the bridges.
In this study, examined was the possibility of replacing stiffened flanges with circular-corrugated plated. Although corrugated panels have been applied to webs of steel or concrete girders, the applicability of corrugated panels to compression flanges has yet to be investigated. The buckling strength of corrugated panels was investigated through finite element method with ADINA. Elastic buckling analyses were carried out varying the following parameters: yield stress, width and thickness of flange. Sought herein were optimum shapes of shapes of corrugated plates, which have the elastic buckling greater than or equal to the given yield stress. It appears that circular corrugated plates can be effectively used for compression flanges of steel box girders. It is recommended that experimental tests be performed to confirm the results of the present study.
In this study, examined was the possibility of replacing stiffened flanges with circular-corrugated plated. Although corrugated panels have been applied to webs of steel or concrete girders, the applicability of corrugated panels to compression flanges has yet to be investigated. The buckling strength of corrugated panels was investigated through finite element method with ADINA. Elastic buckling analyses were carried out varying the following parameters: yield stress, width and thickness of flange. Sought herein were optimum shapes of shapes of corrugated plates, which have the elastic buckling greater than or equal to the given yield stress. It appears that circular corrugated plates can be effectively used for compression flanges of steel box girders. It is recommended that experimental tests be performed to confirm the results of the present study.
목차
제 1 장 서 론 11.1 연구 배경 11.2 연구 목표 3제 2 장 압축력을 받는 파형강판 모델 52.1 기존 박스거더 플랜지 52.2 파형강판을 적용한 박스거더 플랜지 7제 3 장 유한요소해석을 통한 연구 83.1 일반 파형 박스거더 플랜지 해석 모델 83.1.1 해석모델 개요 83.1.2 경계조건 103.1.3 유한요소 해석 모델 검증 113.1.4 변수에 따른 응력 변화 153.1.4.1 골의 깊이에 따른 응력변화 153.1.4.2 골의 너비에 따른 응력변화 173.1.4.3 형상비에 따른 응력변화 203.1.4.4 두께변화에 따른 응력변화 31제 4 장 결 론 38참 고 문 헌 39Abstract 40
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