One of the most essential and costly components in a power distribution network is the power poles. The typical concrete poles of electric power distribution networks in Iran are produced in two categories consisting of newer circular pre-stressed concrete and conventional H-shaped reinforced concrete poles. However, no comprehensive comparison has been made between pre-stressed concrete poles and H-shaped reinforced concrete ones regarding structural behavior. Furthermore, there is a lack of discussion about the pole’s selection criteria. The purpose of this study is to investigate and compare the structural and economic characteristics of circular pre-stressed poles with H-shaped reinforced concrete poles. In this experimental study, the structural performance of four full-scale concrete poles with 12 m height and 400 Kgf normal loading capacity was studied. Two specimens included H-shaped reinforced concrete and two others were circular pre-stressed concrete poles. Furthermore, a fnancial comparison of the above poles has been made. In conclusion, it was found that ultimate strength, stifness, ductility and fnalized energy absorption of H-shaped reinforced was about 1.6, 2.0, 1.4 and 1.18 times concrete circular pre-stressed poles, respectively. The cost of a pre-stressed pole is approximately 22% higher than that of an H-shaped pole. The fact that the useful life of circular pre-stressed poles is twice that of an H-shaped pole, makes the circular pre-stressed poles more economical. Moreover, the circular pre-stressed concrete poles seem to be more environmentally friendly than H-shaped reinforced concrete poles.
