How are changes in tower loading (e.g., new antennas) documented and tracked to ensure ongoing structural integrity?

Changes in tower loading are documented and tracked through a formal process that involves several key steps to ensure ongoing structural integrity. First, any proposed change in loading, such as the addition of new antennas or equipment, requires a structural analysis performed by a qualified professional engineer. This analysis assesses the impact of the new loading on the tower's structural capacity and identifies any potential overstress conditions. The results of this analysis are documented in a detailed report that includes calculations, diagrams, and recommendations. If the analysis indicates that the tower's structural capacity is sufficient to support the new loading, the report is approved, and the modification can proceed. The approved structural analysis report becomes a permanent part of the tower's documentation. After the modification is completed, an updated tower map is created to reflect the new antenna locations and equipment configurations. This updated map is also added to the tower's documentation. Finally, the tower's inspection schedule may be adjusted based on the new loading conditions, and future inspections will focus on areas identified as potentially more stressed by the analysis. This entire process ensures that all changes in tower loading are properly evaluated, documented, and tracked to maintain the tower's structural integrity over its lifespan.