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A Guyed Tower (also called a Guyed Mast or Guy-supported Tower) is a tall, slender vertical structure that relies on steel guy wires (guy cables) anchored to the ground for lateral stability, rather than being self-supporting through a wide base or heavy frame.
It consists of a lightweight central mast (typically made of steel lattice or tubular steel) held upright by multiple layers of inclined guy cables tensioned to ground anchors.
Feature | Description |
Structural Principle | Stability is provided entirely by the tensioned guy wires, not by the mast's own stiffness. |
Height Capability | Can reach 300–600 meters or more — among the tallest man-made structures (e.g., KVLY-TV Mast, 629m). |
Material Efficiency | Uses significantly less steel than a self-supporting tower of equal height, making it cost-effective. |
Footprint | Requires a large land area for guy anchor points (radius typically 50–80% of tower height). |
Maintenance | Guy wires require periodic re-tensioning and inspection due to corrosion and fatigue. |
Broadcasting & Telecommunications: Radio, TV, and cellular antenna masts.
Power Transmission: Crossing rivers or valleys where intermediate supports are limited.
Wind Measurement: Meteorological masts for wind resource assessment.
Lighting: Temporary high-mast lighting for construction sites.
Aspect | Guyed Tower | Self-Supporting Tower (e.g., Lattice/Angular Tower) |
Steel Weight | Lightweight (saves 30–50%) | Heavy |
Land Requirement | Large (anchor radius) | Small (single foundation) |
Construction Speed | Faster (simpler mast assembly) | Slower (complex joint assembly) |
Deflection | Higher (more sway under wind) | Lower (stiffer structure) |
Aesthetics | Less tidy (visible guy wires) | Cleaner appearance |
1. Central Mast: Lattice or tubular steel, segmented and bolted/flanged.
2. Guy Wires: High-strength steel strands (e.g., 7-wire or 19-wire strand), pre-stretched and galvanized.
3. Ground Anchors: Concrete blocks, screw piles, or rock anchors to resist uplift.
4. Insulators (if used as an antenna): Strain insulators inserted into guy wires near the mast to prevent electrical interference.
5. Base Joint: Pinned or hinged connection allowing slight rotation without bending stress.
TIA/EIA-222 (Telecommunications Industry Association) - structural standard for antenna towers.
ASCE 10 - design of latticed steel transmission structures.
EN 1993-3-1 (Eurocode 3) - towers, masts, and chimneys.
