The Telecommunication Industry Authority standard TIA-222-G warrant you to do a structural analyses of your towers and Antenna Supporting Structures once they experiences one or more of the following changes:
- Change in appurtenance configuration (includes installation of DTV, FM, or wireless communication antennas)
- Structural modification
- Change in serviceability requirements
- Change in the structure classification to a higher class.
In most cases, these changes cause intolerable levels of stress in some of a tower’s structural members, guy wires, or foundations. The changes can produce adverse effect on serviceability of the tower by swelling the levels of wind-induced twist or sway at critical microwave dish locations.
More to the above, the continuous exposure to meteorological conditions can result in structural damage including bent or missing structural members, corrosion on structural members, guy wires, turn buckles, and connection elements.
At AFOSE WORKS, we shall do a mapping of your BTS site, redesign the tower, carry out analyses on the present state and provide efficient and cost-effective modification designs that eliminate areas of overstress, reduce deflections to acceptable levels and restore damaged towers back to full capacity.
AFOSE WORKS has provided its telecom and broadcast clients with various cell and broadcast tower reinforcement/modification drawing packages, including:
- Guy wire replacement and initial tension adjustment
- Vertical pipe leg grouting & reinforcing
- Diagonal and horizontal bracing replacement
- Mid-bay redundant bracing installation
- Emergency guy anchor replacement for corroded anchor arms
- Repair of damaged connection gussets
- Replacement of deficient connection bolts with new high strength bolts
- Installation and replacement of torque arms to reduce twist and sway deflections
- Installation of temporary frames to brace damaged tower sections
- Stiffener weldments for monopole base plates
- Modifications to foundations at tower base and guy anchors
- Installation of new sections to extend tower height
- Fabrication of mounting frames for the installation of Digital Television (DTV) antennas
- Measuring the tower verticality and taking appropriate measure to corrects it,
- Tensioning & maintenance of guy wires on guy mast,
- Structural re-enforcement of metallic towers and BTS sites.
- Thickness gauging of tower elements and corrosion control.
- Tower painting and anchor maintenance,
- Tower mapping and installation of tower safety systems.
- We equally do earthing and control of aviation lamps on towers
At AFOSE WORKS, we have in-house team of experts and crews dedicated to modifying any existing structures. These includes certified welders. Mechanical engineers, construction engineers, structural design analyse, field technicians and project managers.
We have a network of trusted and approved subcontractors. Although separate entities, our modification team is able to consult with our engineering departments on any unforeseen on-site issues that may arise during construction.
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