Torre cellular

Páginas: 2 (460 palabras) Publicado: 21 de junio de 2011
Tower Name : AS-W1-30L
This 30m tower is a three legged tower, made of angular members in triangular base pattern, Light loads, generally suitable for primary cellular sites, MW backbone sites, orcentral communication hubs.

Design Standard:
ANSI / TIA-222-G , ANSI/ASCE 10-97, TIA/EIA-222-F.

Weight:

Wind Speed: 108km/h (3 seconds gust). Ignore ice load.

Antenna Load: 3 GSMAntennas are installed 2m under tower top.
2 Dia. 1.2m MW are installed 4m-5m under tower top.

Material:
Angular leg members ST 52-3 (Q345B)
Angular bracing members and plates ST37-2(Q235B)
Solid rods ST 52-3 or ST37-2. (Q345B or Q235B)
ST52-3 according to DIN 17100 (Min Fy=355 MPa)
ST37-2 according to DIN 17100 (Min Fy=235 MPa)

Connections
Bolts are ISO 6.8/ 8.8, SAEGrade 5, or ASTM A-325, supplied with two washers, nut and spring washer.
A 5% hardware overage is included.

Anchoring
Cast-in galvanized anchors and stubs are supplied for the central and anchorsbases.
Ladders
The towers are supplied with a caged or open ladder with safety climbing line. The ladder can be installed in the inside or outside of the tower. Vertical cable hangers are locatednext to the climbing ladder or on any of the tower faces.
Optional accessories
Working and rest platforms
Horizontal cable gantries
Antenna mounts
Anti climb guard
Obstruction lightsystem according to ICAO standards
Lightning protection kit
Welding / Galvanizing
Welds are pre-qualified according to AWS D1.1 Structural Welding Code (Steel).
All steel members areprotected by a hot-dip galvanizing process in accordance with GB/T 2518-2004.
Material Average Coating Thickness Coverage Rate Specification
Steel t﹥=5mm 86um 610g/m2 GB/T2518-2004
Steel t﹤ 5mm65um 500g/m2 GB/T2518-2004
Nuts and Bolts, washes 43um 310g/m2 GB/T2518-2004

Or or we can increase the coating thickness to 120um according to ASTM/A123.

Material Average Coating...
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