Evaluation of the Dynamic Behaviour of a Standard Power Transmission Steel Tower in Japan during an Earthquake

Mazda, Taiji; Kandemir, Elif Cagda; Matsumoto, Masayuki; Oka, Nobuo; Ishida, Naoya

doi:10.4203/ccp.96.47

Cited by 2 publications

(1 citation statement)

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“…In previous study [5], the effects of ground differential settlement to seismic performance of transmission towers were confirmed by using a single tower model. And the influence of adjacent transmission towers was clarified in the past study [6]. The previous study [7] described the development of simplified model for the transmission tower considering the effects of transmission lines and viscous dampers.…”

Section: Introductionmentioning

confidence: 99%

Study on Improvement of Seismic Performance of Transmission Tower Using Viscous Damper

Matsumoto¹,

Kasai²,

Mazda³

et al. 2017

JCEA

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Abstract:The earthquake resistance of transmission tower has been often discussed from the viewpoint of reinforcing the foundation of steel tower, but there are also few studies considering the damping characteristics of the tower. This paper focuses on the viscous damper which has been adopted for seismic reinforcement of bridges in recent years. The purpose of this study is to improve the seismic performance of steel tower by giving the high damping to the tower. We construct a single tower model considering the influence of transmission line, and then simulate the vibration characteristics and seismic behavior of the tower by the eigenvalue analysis and the dynamic response analysis. The results show that the transmission tower with viscous damper can reduce its own response effectively and drastically. This research concludes that it is necessary to consider the extreme increase of steel tower's response depending on the seismic wave and the collapse of steel tower can be avoided by using the optimum damper in the design of the transmission tower.

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Section: Introductionmentioning

confidence: 99%