편심하중을 받는 상자형의 단면변형에 관한 연구 = A study on cross sectional Distortion of the Box girder under Eccentric Load

다국어 초록 (Multilingual Abstract)

Eccentric load acts on box girder is divided into bending and torsional load and deforms cross section. Distortion that is resulted from torsional load is largely different according to tickness of each plate or stiffener.
According to with and without regard of distorsion effect, it is possible to divide analysis of box gilder into two. First, analysis of box gilder can be able to calcurate with rigid box girder in assumption that there is no distorsion when the girder is well stiffened with diaphragms or cross bracing and plate thickness of box section is thick. Second is the analysis that must be considered effect of distorsion when the girder has not sufficient stiffener or plate thickness of box section is not well thick.
In numerical example of this study, normal stress of rigid cross section analysis is compared with that of deformable cross section analysis without interior diaphragms.
Then, it was studied that stresses of the deformable cross section analysis can be near rigid analysis when box girder was stiffened with interior diaphragms.

목차 (Table of Contents)

• Ⅰ.서론
• Ⅱ.상자형의 강절단면 해석1)
• 1.상자형에 작용하는 편심하중
• 2.상자형의 강절단면 해석
• Ⅲ.상자형의 횡단면변형해석1),5)
• 1.횡단면 변형구속에 의한 단면변형 휨응력
• 2.편심하중에 의한 ��윷�
• 3.탄성지반상 보에 대한 해석5)
• Ⅳ.계산예 및 고찰
• 1.집중하중 작용시 중간 격벽이 보강되지 않은 경우
• 2.집중하중 작용시 중간 격벽이 보강되는 경우
• 3.지간길이에 따른 측방향 응력
• Ⅴ.결론