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Static and Dynamic Analysis for the Optimal Relation of Rise-Span-Girder Depth in Langer Arch Bridge  

Hur, Eun Mi (건국대학교 토목공학과)
Choi, Jee Hoon ((주)한구엔지니어링 구조/철도사업본부)
Cho, Byoung Chil (건국대학교 토목공학과)
Lee, Young Jae (건국대학교 토목공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.14, no.2, 2002 , pp. 319-327 More about this Journal
Abstract
Development of high-strength and light-weight structural steel as well as advancement in steel structure analysis enable construction of long span steel arch bridge. In an economic viewpoint, however, the design values of long span steel arch bridge needs to be optimized to reduce construction cost and achieve proper levels of structural safety. This study investigated the girder depth and the rise-span ratio for optimum design values, as well as the spectral analysis for protection against earthquake. The relationship between rise-span ratio and girder depth was derived based on the parametric studies of the basic span lengths of 60, 70, 80, 90, and 100m using a commercial Cis SAP2000. The equation relating the two variables was derived using linear regression.
Keywords
Langer arch; Rise-span ratio; Linear regression; Girder depth; Spectral analysis;
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