A
3-legged tubular steel lattice tower is a self-supporting structure
that combines hollow steel tubes (instead of angular iron) with a
triangular frame. This design is more aerodynamic than traditional
angular steel towers, making it ideal for telecommunications, rural
power distribution, and remote monitoring—especially in uneven or harsh
environments. Its triangular shape ensures stable load distribution,
balancing functionality and cost-efficiency.
Triangular tubular frame: Three vertical steel
tubes form the main legs, connected by smaller tube trusses. This shape
cuts wind resistance while boosting stability.
Height flexibility: Standard heights range 30–50m
(customizable), with a tapered design (wider base, narrower top) to
resist strong winds (up to 200km/h) and earthquakes.
Flange connections: Tower segments are joined with high-tensile bolted flanges, lowering maintenance risks.
Built-in accessories: Includes maintenance platforms, anti-fall ladders, antenna brackets, and lightning rods.
Main materials: Seamless/welded steel tubes (Q345B/ASTM A500 grades), hot-dip galvanized (per ASTM A123) for corrosion resistance.
Fasteners: Grade 8.8 high-strength bolts (ISO 898), with AWS D1.1-compliant welded joints.
Design compliance: Follows TIA-222-G (telecom towers) and GB 50017 (steel structure) standards.
Rural telecom: Extends 4G/5G coverage in remote areas, supporting 6–12 antennas per tower.
Power distribution: Carries 10kV–35kV lines in mountains/rural regions (compact base simplifies site selection).
Emergency communications: Modular parts enable quick deployment for disaster relief networks.
Environmental monitoring: Hosts weather/air quality sensors in ecological reserves (low visual impact).
Aerodynamic efficiency: 30% less wind drag than angular towers.
Low foundation cost: Lighter structure (30% lighter than angular towers) needs smaller concrete foundations (4–6m deep).
Space-saving: Narrow triangular base (3–5m per side) eases permits in sensitive areas.
Long lifespan: 25+ years with minimal maintenance (thanks to galvanization).
Bi-annual flange bolt torque checks.
Annual corrosion inspection (touch up damaged galvanized areas with zinc paint).
Quarterly safety rail/ladder checks.
5-year load assessments (if adding equipment).
As a cost-effective, adaptable structure, the 3-legged tubular
steel lattice tower is key to expanding connectivity in underserved
regions—balancing harsh-environment performance with easy installation.
