支持点高低差を有する送電用鉄塔に作用する電線不平均張力に関する考察

概要

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A transmission tower is submitted to wind loads acting on the tower body and the conductors. A vertical difference of adjacent supports of conductors as well as a different distance between adjacent towers generates non-balanced tension of conductors, which acts on the tower as 'non-balanced tension load'. We studied the static and dynamic properties of non-balanced tension of conductors which are running along supports of different height under strong winds. We concluded as follows; (1) Conductor's non-balanced tensions acting on a transmission tower increased with vertical difference of adjacent supports. (2) The gusty wind response of a tower was bigger than an estimated value based on Design Standard on Structures for Transmission, JEC-127(1979).
九州大学大学院人間環境学研究院都市・建築学部門の論文
2011-07-15