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 Galvanized 4 Legs Angle Steel Tower Telecommunication Lattice Tower
The angle steel or steel pipe is used as the tower column material, which has small wind load coefficient and strong wind resistance. The tower column is connected by outer flange plate, and the bolt is tensioned, which is not easy to damage, and reduces the maintenance cost. The triangular layout of the tower column saves steel, follows small, covers small area, saves land resources, and has convenient site selection, light weight of the tower body, convenient transportation and installation, short construction period, and the tower type changes with the wind load curve, Smooth lines, not easy to collapse in case of rare wind disaster, reduce human and animal casualties. The design conforms to the steel structure design specification and tower and mast design specification, and the structure. Effective service life: more than 50 years.
Performance characteristics: 1. Tower verticality: 1% ‰
2. Design wind speed: 25m / s-35m / S
3. Grounding resistance: ≤ 4 Ω
4. Permitted ice binding of Tower: 5-6mm
5. Anti damage ability: wind level 10
6. Anticorrosion treatment: hot zinc anticorrosion treatment / cold zinc anticorrosion treatment / paint painting
| Raw Material | ||||
No.1
| Grade | Mild Steel | High Tensile Steel | |
GB/T 700:Q235B, Q235C,Q235D ASTM A36 EN10025: S235JR, S235J0,S235J2 | GB/T1591:Q345B, Q345C,Q3455D ASTM A572 Gr50 EN10025: S355JR, S355J0,S355J2 | |||
No.2
| Design Wind Speed | Up to 250km/h Or can be customized | ||
| No.3 | Acceptable Deflection | O.5~1.0 degree | ||
| No.4 | Tension Strength | 360~510 MPA | 470~630 MPA | |
| No.5 | Yield strength (t≤16mm) (Mpa) | 355 | 235 | |
| No.6 | Elongation (%) | 20 | 24 | |
| No.7 | 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) | |||
| Blots & Nuts | ||||
| No.1 | Grade | Grade 4.8, 6.8, 8.8 | ||
| No.2 | Standards for mechanical properties | |||
| No.3 | Bolts | ISO 898-1 | ||
| No.4 | Nuts | ISO 898-2 | ||
| No.5 | Washers | ISO 6507-1 | ||
| No.6 | Standards for Dimensions | |||
| Bolts | DIN7990, DIN931, DIN933 | |||
| Nuts | ISO4032, ISO4034 | |||
| Welding | ||||
| No.1 | Method | CO2 Shielded Arc Welding & Submerged Arc Welding(SAW) | ||
| No.2 | Standard | AWS D1.1 | ||
| Marking | ||||
| Method of marking of the numbers | Hydraulic Press Stamping | |||
| Galvanized | ||||
| No.1 | Galvanization standard of steel sections | ISO 1461 or ASTM A123 | ||
| No.2 | Galvanization standard of bolts and nuts | ISO 1461 or ASTM A153 | ||
| Test | ||||
| Factory test | Tensile test,Elements analysis, Sharpy test(impact test), Cold Bending, Hammer test | |||
