Abstract
Recently about a structure such as the steel tower and the accessories of the power transmission line, the earthquake-resistant evaluation for the great earthquake is carried out. Since it is impossible to have an actual shaking test about such huge structures, a numerical simulation is effective. Therefore it is required to raise the accuracy of numerical analysis and it is important for a simulation model to reflect the actual behavior.
In this paper, as the seismic response analysis for the great earthquake, the nonlinear truss element was used for the power line which does not consider compression and we compared the results with the ones for the linear truss element.