Published Paper Details:

This study is conceived the seismic and wind analysis of multi-sided high mast lighting structures (HMLS) of Steel and Aluminum of 20m, 30m, 40m and 50m heights. And also Fatigue design load factors like Galloping, Vortex shedding and Natural wind gust is also considered for the analysis from AASHTO 2001 Specifications. These loads are arrived at by adopting suitable importance factors. To understand the failure of HMLS under seismic and wind induced vibrations due to wind loads and earth quake loads. The ultimate focus is on the tip deflection of HMLS of different heights. The model has been analyzed using STAAD.ProV8i by adopting the finite element method. Analysis is done on Steel and Aluminum high mast lighting structures. Dynamic analysis such as Modal analysis, Response spectrum analysis and Time history analysis on HMLS is done. Primarily the modal analysis is performed and then the structures have been analyzed for wind loads with gust and without gust factor. Wind loads have been calculated based on three codes of reference namely IS-875 (Part 3)-1987 CODE, IBC-2009 CODE and AASHTO-2001 CODE. Gust factor has been taken from IS: 802 (Part 1 / Sec 1): 1995.