30m-60m Popular 4-legged Self-support Lattice Mast Galvanized Steel Telecom Tower
As a professional manufacturer of all kinds of steel towers and poles, Guangzhou Guangxin Communication Equipment Co., Ltd. was founded in 2009, starting as an OEM and ODM manufactory for CHINA TOWER CORPERATION which is the largest design and supplier of communication towers and other applicable towers in China. After more than 10 years of fast growing and research, we have become one of leading manufacturers of all kinds of steel towers and poles in China. We can produce the steel towers and poles according to customers' designs, drawings and requirements.
Range of Our Products
1, Galvanized steel Telecommunications lattice towers or masts
2, Wind turbine towers, lattice masts and poles
3, Power transmission and distribution line towers and poles
4, Artificial tree or fiberglass grille shroud camouflaged antenna towers
5, Street light poles, roadway and highway lighting columns or posts
6, High mast stadium and sports field lighting towers
7, Traffic signal light, surveillance CCTV camera and sign poles, cantilievers and gantry frames
8, Other steel structures
Specifications of Telecommunications
| Galvanized Steel Communications or Wind Turbine or Power Transmission 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 |
General Procedures of Erecting Telecommunications Towers
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.
Category of Galvanized Steel Towers and Masts for communications:
1, Four legs lattice tower: made of angular steel plates or tubular steel tubes or pipes or both
2, Three legs lattice tower: made of angular steel plates or tubular steel tubes or pipes or both
3, Bipod and Tripod: steel tube as main post and angle plates as diagonal supports
4, Mono pole
5, Ground field towers
6, Rooftop towers
7, Artificial palm or pine tree monopole for camouflaged antenna towers
8, Monopole towers with cylindrical fiberglass grille shroud or cover for camouflaged antenna towers.
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60m Galvanized Steel Telecom Tower 4 Legged Self - Support Lattice Mast Images
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