EARTHQUAKE DAMAGES OBSERVED IN AERIAL ELECTRIC POWER DISTRIBUTION FACILITIES IN JAPAN AND POLE-GROUND DEFORMATION CHARACTERISTICS BY HORIZONTAL CYCLIC LOADING TEST

Abstract

Earthquake damages of aerial electric power distribution facilities in Japan were investigated, and factors contributing to the earthquake-proof of the facility components and ground conditions were identified for the various pole types, ground surface and layering, and foundation penetration depth.
Deformation characteristics of pole-ground coupled system was evaluated by in-situ horizontal cyclic loading test, and parameters required for seismic response analysis of the aerial electric power distribution facilities were derived.