Self Support Lattice Steel Towers Galvanized Cellular Mobile Communication Tower
Self-support Galvanized Steel Cellular Mobile Communication Tower
Self-support Galvanized Steel Cellular Mobile Communications Tower
3-legged or 4-legged Self-support Steel Lattice Telecom Mast
Guangzhou Guangxin Communication Equipment Co.,Ltd. is a large scale manufacturer of telecommunications and traffic infrastructures, including telecommunications monopoles and towers, street light poles and towers, power gride & electricity transmission towers, lighting protection poles, artificial bionic tree camouflaged antenna towers, CCTV camera poles and high masts, guideboards poles, billboards and led display gantry frames, ETC toll gate frames and other steelworks. Many projects we supplies have won parter reputation, awards and approvals from the users and customers. We are supplying the steelworks for 5G infrastructures, smart city and safe traffic facilities, civil contruction and developing many other fields.
Technical Specifications of Galvanized Steel Materials and Telecom Tower
| Galvanized Steel Telecommunications Tower | ||
| 1. Material | ||
| Weldable Structural Low Carbon Steel Plates or Tubes | ||
| 2. Grade | Main structure | Braces |
| GB/T1591:Q345B | GB/T 700:Q235B | |
| ASTM A572 Gr50 | ASTM A36 | |
| EN10025: S355JR, S355J0,S355J2 | EN10025: S235JR, S235J0,S235J2 | |
| 3. Design Wind Speed | Up to 250 km/h | |
| 4. Allowable deflection | 0.5 ~1.0 degree @ operational speed | |
| 5. Tension strength | 470~630 MPa | 360~510 MPa |
| 6. Yield strength | 355 MPa | 235 MPa |
| 7. Elongation (%) | 24 | 20 |
| 8. Impact strength KV (J) | 27(20°C)---Q345B(S355JR) | 27(20°C)---Q235B(S235JR) |
| 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 | |
| Galvanizing | ||
| 14. Galvanization standard of steel sections | ISO 1461 or ASTM A123 | |
| 15. Galvanization standard of bolts and nuts | ISO 1461 or ASTM A153 | |
Applications of Steel Towers
1, GSM, 2G/4G/5G cellular Mobile communications antennas mounting and telecom signal transmission tower.
2, FM, AM, VHF radio transmission tower.
3, TV station tower
4, Electrical power transmission and distribution pylon
5, Millitary watch tower
6, Radar Microwave tower etc.
Features of Mobile Communication Tower:
1. Small coefficient of wind load, strong wind resistance.
2. Save land resource, convenient location.
3. Convenient transportation and installation.
4. According to the customers’ choice, the ladder can be placed inside or outside.
5. With advanced international design concept and calculation method, tower slope can be adjusted in accordance with geology and climate.
6. Convenient and safe to install, small area covering, and easy to select site.
60m Galvanized Steel VHF Radio tower erected in Alotau, Papua New Guinea
Specification of Mobile Communication Tower:
| Material | Tubular Steel, Angle steel plates, flat steel plate |
| Steel Type | Weldable low carbon structural steel |
| Steel Grade | GB Q235, Q345, BS 4360, ASTM A36 etc. |
| Yield Strength | Fy≥235MPa |
| Tensile Strength | Fu≥400MPa |
| Elongation | σ≥20% |
| Surface Finish | Hot dip galvanization |
| Galvanized layer | T≥65μm |
| Height | 20m to 100m, customized to requests |
| Design | 4 legs self-supporting or free standing lattice tower |
| Structure | 1 to 5 platforms, each platform comes with 4 to 6 brackets for mounting antennas or specified number of brackets for mounting antennas, microwaves, RRUs and other devices. |
| Supply mode | CKD(Complete Knocked Down), SKD(Semi-Knocked Down), DKD(Direct Knocked Down) |
| Fixing/Fastening | Bolts and nuts, connecting plates |
| Configuration | Foundations/anchoring bolts, tower sections, 1-5 platforms (optional), mounting brackets, ladder, anti-fall safety system, lightning rod, earthing plate etc. |
| Wind Load | 0.35-1.0kN/sqm |
| Lifespan | 20-50 years |
| Warranty | 5 years |
| Applications | GSM/3G/4G/5G/FM radio antennas, microwaves, telecom stations. |
RDS tower foundation
Basic Procedures of Building A Telecom Tower
1, Site geologival investigation or survey to clasify terrain category and confirm it meets tower erection requirements
2, Design tower body and foundations
3, Test and specify the tower body and foundation by professional design and calculation software
4, Specify the tower and foundation dimensions and specifications of materials.
5, Prepare lofting and shop drawing of tower sections
6, Manufacture tower members according to the drawings and specifications.
7, Dig holes for the tower foundations and make a cement underlayer on the bottom
8, Make steel cage frames and anchorages for foundations
9, Make wooden molds for constructing concrete foundations
10, Set up grounding net with steel plates or rods around foundations.
11, Pour concrete and construct bottom blocks and pedestals
12, Dry and watering concrete foundations
13, Test the impact strength and make sure it meets the design specifications.
14, Fix tower footings to foundation pedestals and other tower members
15, Assemble tower sections and antenna brackets, ladder, rest and work platforms, lightning rod, grounding plates etc.
16, Set grouding of tower body and foundations, make sure at least 2 feet of tower must be connected with the ground net, lightning rod must be connected with grounding net through at least 2 foundations.
17, Test the straightness or verticality of tower
18, Complete if all specifications are confirmed.
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