Dynamical Structural Performance of Steel Mast to Telecom Facilities Using Staadpro

ABSTRACT

The expansion of wireless communication infrastructure has intensified the demand for safe, lightweight, and dynamically stable steel masts. This study investigates the dynamic structural performance of a 55 m self-supporting lattice telecommunication mast analysed and designed using STAAD.Pro. Loads considered include dead, live, wind, seismic, and accidental actions, evaluated according to Eurocode 3, TIA-222-G and the Uniform Building Code (UBC 1997). The methodology comprised geometric modelling, material definition, code-based load generation, and dynamic response evaluation under serviceability and ultimate limit states. Results show that maximum lateral deflection and member utilisation ratios remained within permissible code limits. The computed maximum horizontal deflection of 0.123m at the mast tip (ULS) is less than the allowable (0.550m) which is 1% of the tower height 55m, while the maximum vertical displacement is 1.262mm which is less than the allowable (L/250 = 13.292mm). These outcomes validate the reliability of STAAD.Pro for slender steel mast design and confirm the structure’s compliance with international standards.