Hiroshi Kuwahara

The influence of the electric wires on the behavior of the electric pole during an earthquake.

配電柱の地震時挙動に及ぼす架線の影響を多質点モデルの解析により調べた. その結果, 架線の振動効果は小さく, 非線形のばねとしての拘束効果が大きいが, その影響は隣接柱の設置条件などにより変化する. しかし, これらの配電柱の挙動はゆるい砂質地盤やコンクリート埋込条件の架線を付加質量とした単柱モデル解析により, 折損などの被害の発生の有無を評価できることがわかった.

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

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.