Development of Seismic Capacity Curve (S.C.C.) for power distribution concrete poles

Seismic assessment of power distribution network equipments is one of the most important challenges due to last seismic loss experiences. Because of complication and variety of parameters which are effective in seismic behavior of structures and equipment, Seismic Capacity Curve (S.C.C.) development is one of the most applicable methods based on analytical and experimental studies to evaluate seismic vulnerability. By means of S.C.C., vulnerability of each concrete pole is evaluated according to seismicity and soil bearing capacity and concrete pole capacity, simply and accurately. If the pole is not vulnerable there is no need of rehabilitation, otherwise vulnerability have to evaluate by the more accurate methods. This paper deals with development of various S.C.C. by a finite element analysis for concrete poles which are utilized in IRAN power distribution network, with various ultimate strength grades and in different site specification.