Construction of Analysis Model of Sand Foundation Electrical Pole

Abstract

Sand foundation has been often used as measures against earthquakes for prestressed concrete poles (below, PC poles) on railway viaducts. The sand foundation is a facility expected to reduce vibration of PC poles against earthquake by using sand friction. However, the behavior of the sand foundation PC pole has not been clarified, in the case where these poles had excessive load during a large-scale earthquake. Therefore, we performed static and dynamic experiments of the sand foundation PC poles in order to construct a dynamic analysis model of the sand foundation PC poles against a large-scale earthquake. This paper describes the modeling of sand foundation PC poles in detail.