한국전산구조공학회:학술대회논문집 (Proceedings of the Computational Structural Engineering Institute Conference)
- 한국전산구조공학회 2004년도 가을 학술발표회 논문집
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- Pages.218-225
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- 2004
중ㆍ소규모 강교량의 고강도강 적용성 비교
A Comparative Study on the Use of High-strength Steel to the Medium-span Bridges
초록
A study has been performed to investigate the applicability of the high-strength steel to the medium-span composite girder bridges. A two- and four-girder simple and continuous bridges are considered. A proper span-to-depth ratio for the model bridges with SM490 and SM570 was evaluated by using the section optimization program, respectively. For the determined span-to-depth ratio, deflections and fatigue performance were also investigated. It was acknowledged that the high-strength steel reduces the weight of girder but the increase of deflection and fatigue stress should be considered especially in the positive moment area.
키워드