A monopole telecom tower (often called a telecom monopole) is a single-shaft, self-supporting structure tailored for urban and densely populated areas, defined by its compact cylindrical or polygonal shape.
Unlike open-truss lattice towers, this tower features a solid/semi-solid single shaft—making it visually unobtrusive and ideal for space-constrained, aesthetic-sensitive locations.
| Design | ||
| 1. Design Code | ANSI/TIA-222-G/H/F, EN 1991-1-4 & EN 1993-3-1 | |
| Structure Steel | ||
| 2. Grade | Mild Steel | High Tensile Steel |
| GB/T 700:Q235B, Q235C,Q235D | GB/T1591:Q355B, Q355C,Q355D | |
| ASTM A36 | ASTM A572 Gr50 | |
| EN10025: S235JR, S235J0,S235J2 | EN10025: S355JR, S355J0,S355J2 | |
| 3. Design Wind Speed | Up to 250 km/h | |
| 4. Allowable deflection | 0.5 ~1.0 degree @ operational speed | |
| 5. Tension strength (Mpa) | 360~510 | 470~630 |
| 6. Yield strength (t≤16mm) (Mpa) | 355 | 235 |
| 7. Elongation (%) | 20 | 24 |
| 8. Impact strength KV (J) | 27(20°C)---Q235B(S235JR) | 27(20°C)---Q345B(S355JR) |
| 27(0°C)---Q235C(S235J0) | 27(0°C)---Q345C(S355J0) | |
| 27(-20°C)---Q235D(S235J2) | 27(-20°C)---Q345D(S355J2) | |
| Bolts & Nuts | ||
| 9. Grade | Grade 4.8, 6.8, 8.8 | |
| 10. Standards for mechanical properties | ||
| 10.1 Bolts | ISO 898-1 | |
| 10.2 Nuts | ISO 898-2 | |
| 10.3 Washers | ISO 6507-1 | |
| 11. Standards for Dimensions | ||
| 11.1 Bolts | DIN7990, DIN931, DIN933 | |
| 11.2 Nuts | ISO4032, ISO4034 | |
| 11.3 Washers | DIN7989, DIN127B, ISO7091 | |
| Welding | ||
| 12. Method | CO2 Shielded Arc Welding & Submerged Arc Welding(SAW) | |
| 13. Standard | AWS D1.1 | |
| Marking | ||
| 14. Method of marking of the members | Hydraulic Press Stamping | |
| Galvanizing | ||
| 15. Galvanization standard of steel sections | ISO 1461 or ASTM A123 | |
| 16. Galvanization standard of bolts and nuts | ISO 1461 or ASTM A153 | |
| Test | ||
| 17. Factory test | Tensile test,Elements analysis, Sharpy test(impact test), Cold Bending, Preece test,Hammer test | |
| Capacity | ||
| 18. Maximum Production Capacity | 50,000 TON per annum | |
What is the Ladder of Monopole Tower?
The ladder of a monopole tower is an internal safety access system integrated within the tower’s single shaft, designed to enable certified personnel to climb to upper sections for equipment installation, maintenance, or inspections. Constructed from galvanized steel for durability and corrosion resistance, the ladder features evenly spaced rungs (per industry safety standards) and is equipped with a built-in fall-arrest system—such as a guided cable or rail—to prevent falls during ascent/descent. It is welded or bolted to the inner wall of the monopole shaft, ensuring stability even under urban wind conditions. Access to the ladder is restricted to trained personnel, and its integrity is verified during bi-annual internal inspections to comply with safety regulations and TIA-222-H design standards. Unlike external ladders on lattice towers, the internal design of the monopole’s ladder minimizes exposure to environmental damage and maintains the tower’s sleek, unobtrusive profile.
What is the Antenna Bracket of monopole tower?
The antenna bracket of a monopole tower is a dedicated structural component mounted externally on the tower’s single shaft, designed to securely hold and position communication equipment such as 5G antennas, Wi-Fi transceivers, microwave dishes, or CCTV devices. Typically fabricated from high-strength steel (consistent with the tower’s main material, e.g., Q345B/ASTM A500 Grade B) and treated with hot-dip galvanization (per ASTM A123) for corrosion resistance, these brackets feature a modular design to accommodate different equipment sizes and weights. They are fastened to the monopole shaft using ISO 898 Grade 8.8 high-tensile bolts, ensuring a firm connection that withstands wind loads (up to 180km/h) and equipment vibrations. Antenna brackets are strategically spaced along the tower’s height to optimize signal coverage, and their design complies with TIA-222-H standards to maintain the tower’s structural integrity while supporting operational equipment.
How to connect monopole tower with foundation?
Connecting a monopole tower to its foundation is a critical step to ensure structural stability, involving the following key procedures:
1. Foundation Preparation: Construct a reinforced concrete foundation (typically a circular or square pad, or a deep pier) tailored to the tower’s height, weight, and local soil conditions. The foundation must be cured to full strength before tower installation, complying with local urban building codes.
2. Base Plate Installation: Attach a heavy-duty steel base plate (welded to the bottom of the monopole shaft) to the foundation. The base plate features pre-drilled holes aligned with anchor bolts embedded in the concrete.
3. Anchor Bolt Securing: Use high-tensile anchor bolts (ISO 898 Grade 8.8 or higher) to fasten the base plate to the foundation. Tighten the bolts to the specified torque using calibrated tools, ensuring uniform pressure across the base plate.
4. Grouting (Optional): Inject non-shrinking grout between the base plate and the foundation surface to fill gaps, distribute loads evenly, and enhance structural rigidity.
5. Alignment Check: Verify that the monopole shaft is perfectly vertical using a level or laser alignment tool, adjusting the anchor bolts if necessary to correct any deviation.
6. Final Verification: Conduct a load test or structural check to confirm the connection can withstand the tower’s weight, equipment loads, and wind forces (up to 180km/h), ensuring compliance with TIA-222-H and foundation design standards.
