சி. எஸ். ஐ. ஆர். - கட்டமைப்பு பொறியியல் ஆராய்ச்சி நடுவம்

Failure Investigations on Microwave Lattice Towers during Cyclones

Along the coastal regions of India, many microwave lattice towers have collapsed during cyclones with lesser wind speeds than the design basic wind speed. Hence, failure investigations have been carried out to identify the possible failure reasons by considering the cyclone wind characteristics, viz. turbulence intensity and turbulence spectrum.

• The investigations indicated that the Gust Effectiveness Factor values increased due to higher turbulence during the cyclone wind conditions, which lead to the increased dynamic response of the lattice towers and causing their failure.
• Based on this investigation, a new formulation has been proposed to evaluate Gust Effectiveness Factor for lattice towers in cyclone prone regions.