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A Parametric Modeling Method for Automatic Fitting of Longitudinal Geometry of Box Girder in FCM Bridge  

Lee, Sang-Ho (연세대학교 사회환경시스템공학부)
An, Hyun-Jung (연세대학교 토목공학과)
Kim, Bong-Geun (연세대학교 토목공학과)
Eom, In-Soo (포스코건설 토목기술그룹)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.23, no.4, 2010 , pp. 417-424 More about this Journal
Abstract
This study proposes a parametric modeling method for efficient preliminary design of FCM(Free Cantilever Method) bridge. The method is capable of automatic fitting of cross section according to variation of span length of box girder which has variational section. Parameters for forming longitudinal geometry of box girder are defined, then implicit and explicit constraints, and functional relations among them are defined by applying statistics of parameters used in FCM bridge designs. The constraints and relations are applied to a sample bridge for verifying applicability of parametric modeling. In addition, material quantity of the sample model generated by parametric modeling is estimated and compared to the quantity of the real designed model to check the accuracy of the automatically designed parametric model.
Keywords
variational section; FCM; box girder; parametric modeling; constraint;
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