Design analysis and Commissioning Of High Mast Lighting Poles

Abstract

Along a major highway, luminaire pole structures may be seen every 101 of a mile.From documented cases, it appears that these structures started to experience fatigue problems in the last three decades. The general public might not be aware of the problem, because if such a failure occurs, the structure is replaced. Those working in the fatigue area realize that this issue is a serious matter(15)(16). Clearly, the damage is costly, costing up to thousands of dollars per occurrence. For this purpose, a high mast lighting poles are fabricated using steel due to its high strength, ductilityproperty and wear resistance. The high mast structure (HMS) has the characters of light weight and high cost efficiency. It possess large ratio of height (H) to least horizontal dimension (D) that makes it more slender and wind-sensitive than any other structures(17). Therefore, the purpose of this research is to design optimal high mast poles taking into account its specification, environmental conditions for placement and economy. Initially, among various pole designs, the high mast pole is considered to be in tapered section as it is more reliable and economical. Then, analysis is performed in solid works by keeping the base section to be fixed and applying compressive load on the top section of the pole due to heavy weight of cantilever mast arm and luminaire. This project illustrates the theoretical basis and the analytical development of the high mast lighting poles.