Active Member
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[China]
Address: Fu Zhao Village，Guang Chuan Town, Jing County, Hengshui City, Hebei Province
Contact name:Anne Wang
Hebei Changtong Steel Structure Co., Ltd. |
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Self supporting tower usually is 3-leg or 4-leg tower, and its material is steel pipe or angle steel. As for the connection, tubular tower is connected by flange, and angle steel tower is connected by nuts and bolts.
Performance characteristics of radio and television tower:
1. Corrosion resistant and nonflammable
2. Long service life
3. Different shapes and colors
4. Can mount a variety of devices
5. You can climb high and overlook
6. It has the functions of communication, fire prevention,
lightning protection, broadcasting, etc
| Design | ||
| 1. Design Code | TIA/EIA-222-G/F | |
| Structure Steel | ||
| 2. Grade | Mild Steel | High Tensile Steel |
| GB/T 700:Q235B, Q235C,Q235D | GB/T1591:Q345B, Q345C,Q3455D | |
| 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 | |
Hebei Chang Tong supply 4G Mobile single tube tower 4G
communication angle steel tower 2019
Communication tower, the main structural form of four column angle
steel structure, three column angle steel structure
[main function] it is mainly used for signal transmission.
[main purpose] it is used in China Mobile, China Unicom, China
Telecom, China tower company and China Railway Communication
Company.
[structure form] it is mainly angle steel structure.
[structure content] Q235B steel or Q345B steel or 20 ﹥ steel is
generally used, all of which are hot-dip galvanized for
anti-corrosion treatment, and the connecting bolts are grade 6.8.
Lightning rod is set on the top of the tower, and the lightning
protection grounding resistance is less than or equal to 10 ohm.
[technical parameters] wind speed resistance: 30m / s, ice coating
resistance: 8mm, seismic intensity: 8 degrees, working temperature:
35-55 ℃, verticality: 1 / 1000.
[height dimension] 10m-50m.
[product features] round steel or angle steel is used as the tower
material, with small wind load coefficient and strong wind
resistance. The tower column is connected by outer flange or iron
clad angle steel, and the bolt is tensioned, so it is not easy to
damage, and the maintenance cost is reduced.
[service life] 30-50 years
[warranty period] 1-3 years
