Proceedings of the Computational Structural Engineering Institute Conference (한국전산구조공학회:학술대회논문집)

Computational Structural Engineering Institute of Korea (한국전산구조공학회)
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Optimal Design of Two-Span Steel Box Girder Bridges by LRFD

LRFD에 의한 2경간 강박스형교 최적화 설계

  • 국중식 (아주대학교 건설교통공학과) ;
  • 신영석 (아주대학교 건설교통공학과)
  • Published : 2001.04.01
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Abstract

In this study steel box girders used as main members of a two span continuous steel bridge, are optimally designed by a Load and Resistance Factor Design method(LRFD) using an numerical optimization method. The width, height, web thickness and flange thickness of the main girder are set as design variables, and light weight design is attempted by choosing the cross-sectional area as an object function. We studied the results of steel box girders and compared with those of 1-type girders. The main program is coded with C++ and connected with optimization modul ADS. which is coded with FORTRAN.

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