Galvanized Self Supporting 3 Legged Tubular Steel 5g WiFi Telecom Antenna Tower Manufacturer

Product Description

JIAYAO CO.,LTD.

Product Description

1.key Details:
Place of Origin: Hebei, China (Mainland) ; Brand Name: Jaoyao or OEM ; Model Number: Telecom Tower
Surface treatment: Hot Dip Galvanizied or painted.
2.Packaging & Delivery:
Packaging Details: Telecom tower will be bundled by Galvanized strapping as per client's requirements.
Deliver:Shipped in 20 days after payment from Tianjin port
Tower members: One steel tower is separated into several bundles.
Bolts: Packing material is robust nylon bag or steel drum.
3. Technical Data

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)	235	355
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 lattcie structure of 3 legged tubular steel tower?
The lattice structure of a 3-legged tubular steel tower is a truss-like framework that connects the tower's three vertical tubular legs. Composed of smaller hollow steel tubes (consistent with the main leg material, e.g., seamless/welded steel tubes), these lattice members form crisscross horizontal and diagonal connections between the three legs, creating a triangular web-like pattern throughout the tower's height. This structure works in tandem with the tower's tapered design (wider at the base, narrower at the top) to distribute vertical loads (tower weight, equipment weight) and lateral forces (wind, seismic activity) evenly across the three legs. The tubular lattice not only enhances structural rigidity and stability but also optimizes aerodynamic performance-reducing wind drag by 30% compared to traditional angular steel lattice structures-making the tower highly adaptable to harsh or windy environments. Additionally, the use of tubular members ensures the structure is lightweight while maintaining high load-bearing capacity.
 

How to mount the MW dish on the 3 legged tubular steel tower?
Mounting a microwave (MW) dish on a 3-legged tubular steel tower follows a safe, standardized process aligned with the tower's structural design and industry standards:

1. Pre-installation Verification: Confirm the tower's load-bearing capacity (per TIA-222-G and GB 50017 standards) to ensure it can support the MW dish, mounting hardware, and associated loads. Inspect the tower's pre-installed antenna brackets (integrated accessories) for structural integrity.
2. Bracket Preparation: Use the tower's dedicated antenna brackets (or custom-fabricated brackets compatible with the tubular lattice) and secure them to the tower's main legs or lattice trusses using Grade 8.8 high-strength bolts (ISO 898). Ensure brackets are aligned with the intended point-to-point communication path and tightened to specified torque.
3. Dish Lifting and Positioning: Employ cranes or specialized lifting equipment to hoist the MW dish to the target height (typically near the upper sections of the tower or on a maintenance platform). Adjust the dish's azimuth and elevation to align with the receiving/transmitting endpoint, using laser alignment tools for precision.
4. Secure Fastening: Attach the MW dish to the mounted brackets using compatible hardware, ensuring a tight, wobble-free connection. Recheck bolt torque with calibrated tools to comply with AWS D1.1 welding and fastening standards.
5. Cable Routing: Route the dish's signal and power cables through the tower's integrated cable management systems (or along protected paths on the lattice structure) to avoid exposure to environmental damage. Ensure cables are properly insulated and waterproofed at connection points.
6. Final Inspection: Conduct a visual check of the dish, brackets, and connections to confirm stability. Test signal transmission to verify alignment and functionality. Adhere to safety protocols (e.g., fall protection for workers) throughout the installation.

Main structure of 3 legged tubular steel tower?
The main structure of a 3-legged tubular steel tower is a self-supporting, triangular-framed system designed for stability, load-bearing, and aerodynamic efficiency, consisting of three core components:

• Three Vertical Tubular Legs: The primary load-bearing elements, made of seamless or welded steel tubes (complying with Q345B/ASTM A500 standards). Arranged in a triangular configuration, these legs transfer the tower's total weight (including equipment and environmental loads) to the foundation.
• Tubular Lattice Trusses: Smaller hollow steel tubes that connect the three main legs horizontally and diagonally. This crisscross truss system distributes loads evenly, enhances structural rigidity, and reduces wind resistance, forming the tower's characteristic lattice pattern.
• Tapered Frame & Flange Connections: The tower narrows gradually from the base to the top (wider base, narrower top) to optimize resistance against strong winds (up to 200km/h) and earthquakes. Tower segments are joined via high-tensile bolted flanges, ensuring secure assembly and lowering maintenance risks.

These components form the structural backbone, with integrated accessories (e.g., platforms, ladders) adding functional support without compromising the main structure's integrity.

Platform, ladder
 

A. Platform

• Purpose: Serves as a stable elevated workspace for installing, maintaining, or inspecting MW dishes, antennas, sensors, or other equipment. It also provides a safe resting point for workers during tower access.
• Design Features: Fabricated from galvanized steel (per ASTM A123 for corrosion resistance) and integrated into the lattice structure at specified heights. Equipped with safety railings to prevent falls and non-slip surfaces for worker stability. Engineered to support the weight of workers, tools, and equipment, aligning with the tower's overall load-bearing capacity. May include access hatches for easy movement between tower sections.
• Key Advantage: Positioned strategically near equipment mounting points to streamline maintenance tasks, enhancing operational efficiency.

B. Ladder

• Purpose: A dedicated safety access system that allows workers to climb the tower to reach platforms, equipment, or upper sections for installation, inspection, or repairs.
• Design Features: Constructed from galvanized steel for durability and corrosion resistance, with evenly spaced rungs (per industry safety standards) for comfortable climbing. Equipped with anti-fall mechanisms (e.g., cable guides for safety harnesses) to minimize fall risks-consistent with the tower's "anti-fall ladder" design specification. Attached vertically to the main legs or lattice trusses, ensuring a secure, stable path.
• Compliance: Designed in line with safety regulations and tower design standards (e.g., TIA-222-G, GB 50017), prioritizing worker protection during vertical access.

Together, the platform and ladder enhance the tower's usability by enabling safe, efficient access to high-altitude equipment, supporting ongoing operation and maintenance while adhering to industry safety and durability requirements.

 

 

 

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