• Title/Summary/Keyword: 열연코일판

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Application of HR-Plate in Steel Box Girder (HR Plate의 강박스거더 적용 연구)

  • Lee, Seong-Haeng;Hahm, Hyung-Gil;Kim, Kyoung-Nam;Jung, Kyoung-Sup
    • Journal of Korean Association for Spatial Structures
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    • v.7 no.4
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    • pp.63-72
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    • 2007
  • As business of steel consuming industries is freshly booming in domestic and foreign countries especially in China, the price of steel plates comes to very high compare with the other materials. The HR Plates made from hot rolled coils is lower steel plates in price. In this study, material characteristics of HR Plates is investigated and availabilities of HR Plates for steel bridges as sub member or a main member is discussed. No difference between steel plates and HR Plates with thickness up to 22mm is found in most characters such as cutting operation, fabrication and even welding. As sub member in steel box girders, the application ratio and the loss ratio of HR Plate is investigated as about $10{\sim}15%$, average $10{\sim}15%$ respectively.

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Steel Box Girder Bridge Models of Light Rail Transit with HR Plate (HR Plate의 경량전철 강박스거더교 적용모델)

  • Lee, Seong-Haeng;Yim, Chae-Sun;Hwang, Nak-Yuen;Jung, Kyoung-Sup
    • Journal of the Korean Society for Railway
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    • v.10 no.5
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    • pp.554-562
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    • 2007
  • To increase the demand of HR Plate with thickness up to 22mm, it is necessary that HR Plate is applicable to full member in steel bridge including main girder. In this study, availabilities of the narrow steel box girder of light railway transit with HR Plate width as a main member are discussed. Computational analysis is performed in 15 bridge models of light railway transit with beam element and plate element. As an analysis results, three models in tight railway transit are presented. In conclusion, it is validated that HR Plate can be applying to narrow steel box girder in the light railway transit.