[미발표] 전철주기초의 마찰저항을 고려한 저항모멘트 산정방법 개발

Railway electric poles are supported by foundations of square or cylindrical concrete columns. The forces acting on electric cables and their auxiliary parts are separated to the foundations by some distances and cause significant overturning moment. Vertical and frictional stresses developed between soil and foundation resist against the overturning to create the moment capacity. However the existing design methods consider only the passive soil pressure, i.e. vertical stress, and frictional resistance should be considered additionally for the more reasonable and economical design. In this study a new method to estimate the moment capacity of electric pole foundations considering frictional resistance is developed by adopting a simultaneous equation approach rather than closed form solution of the existing methods.