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플레이트 거더사교의 둔각부에서 전단력 산정을 위한 윤하중분배계수
강창조,송재호,장일영 國立金烏工科大學校 産業技術開發硏究院 2002 産業技術開發硏究 Vol.18 No.-
The wheel load distribution factors specified by Korean Bridge Design Code and AASHTO Specifications don't account for the effect of skew. Therefore use of inappropriate wheel load distribution factors can mislead to design shear in skewed bridges. This study is making understanding of property of skew bridges and concept of distribution factor for a shear in skew bridge obtuse and gives overview of problems of existing formulas, and suggesting a finite element model using results from field tests on two plate girder bridges. The considered parameters are girder spacing, span length, slab width, skew angle. and the regression analysis is performed to develop the distribution formulas which include many parameters which have an effect on distribution factors. To confirm the validity of the proposed formulas, its results are compared with AASHTO, AASHTO LRFD. At the result, this suggesting formula is showing that increasing rate of wheel load distribution factor concerned with parameters is decreasing and this is showing definite difference with existing specifications.
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