Megatro Telecom High Monopole Tower

Megatro  telecom monopole towers



This photo refers to our 40m telecom monopole tower, with technical data as follow:
? 40m above the ground level
? Bottom diameter 1200mm and top diameter 400mm
?Built in 4 segment of length 10.6m, 10.6m, 10.6m, 10m
? weight about 18 tons
? Take up to 12 GSM &16 microwave antenna
? Withstand wind speed of 170kmp
? International approved design
? Safety measures well addressed
 


Accessories:
? Working and rest platforms
? Horizontal cable gantries
? Antenna mounts
? Anti-climb guard & other safety devices
? Paint kit (ICAO standards)
? Obstruction lighting system (ICAO standards)
? Lightning protection kit
? Palisade fence
? Canopy
 
Design Standards:
TIA/EIA 222-G, or BS8100, EUROCODE 3 PART 3-1
 
Materials:
? Legs Q345B, or ASTM A572 GR50, or ST 52-3, or S355JR
? Braces and plates Q235B, or ASTM A36, or S235, Or ST 37-2
 Bolts: Chinese grade 6.8 and 8.8, which similar to ASTM A394
 
Fabrication
A) Dimension and tolerance for angle are according to GB/T1591-1994, similar to EN 10056-1/2
B) Hot dip galvanization in accordance with GB/T 13912-2002, which similar to ASTM A 123
C) The welding will be performance in accordance with AWS D1.1 or CWB standard

Connections:
Bolts (ISO 8.8, SAE Grade 5, or ASTM A-325) + flat washers, nuts and spring
washers (5% hardware overage)
Anti-Corrosion Treatment: All steel elements are hot-dip galvanized (ASTM A123)
Paint kit (white/orange)
Anchoring: Anchor rods (ASTM F1554) used with leveling nuts and a positioning template
 
Shipment:
Standard 20' to 40' ISO container
Documentation:
? Detailed packing list
? Installation & maintenance manual
? Foundation design
 
MEGATRO is a full service engineering company with a global reputation for delivering excellence and innovation in telecommunications systems.
Over 10 years of experience and innovation in engineering, designing and building towers has evolved MEGATRO into its current form:
l        Full Turn-Key provider including site acquisition, engineering services, manufacturing,   field services-DAS, tech services, value added reseller and monitoring, maintenance and network ownership
l        Specialize in developing supplying and building wireless and wired networks and in-building telecommunications systems, as well as energy infrastructure
l        Single source from Design to System Integration
l        Top quality, ISO 9001 registered
A complete selection of towers including self-support, lattice steel tower, monopoles and guyed towers, form custom-designed radar towers to broadcast towers and energy infrastructure. MEGATRO carries a variety of related products including fall protection, transmission lines, antennas, obstruction lights, and accessories, and other products if client need, MEGATRO also tailored product as per client condition.

MEGATRO mainly design all kinds of towers and posts for:
a.      Telecoms
b.      Power transmission
c.      TV and Radio Broadcast
d.      Roads and City Development
e.      Wind energy solution
f.        Other steel workshop and structures
 
Our complete selection of towers includes:
a.      Self-supporting
b.      Monopoles
c.      Guyed towers
d.      Custom-designed radar towers
e.      Broadcast towers
f.        Power transmission
 
MEGATRO also designs and manufactures tower related products including:
a.      Fall protection
b.      Antenna brackets
c.      Other accessories if needed by clients
 
For this 40m monopole telecom tower, Our MEGATRO performs in-house design activities by PLS software or other software. Our Engineering Department is boasting of highly qualified engineering who are conversant with international codes and standards. The work is carried out with extensive use of CAE/CAD via a large of computer network. The computer hardware & drafting software are liked to the CNC workshop equipment for downloading of information thereby eliminating error and saving valuable production time.
 
After fabrication all towers are delivered to the galvanizing facility to be Hot Dip Galvanized. Towers are processed through the facility by Caustic Cleaning, Pickling, and then Fluxing. These strict procedures insure years of maintenance free towers.
Moreover, we offer cost effective range of development and installation service regarding as an additional installation service. These are further, designed for both government and civil communications and suitable for both far-off and short distance communications. For additional protection, we cover these with protective shield to prevent the radioactive fallouts.

Other information:
Availability size: Based on the customer's requirements.
Material: Chinese material or as per clients requirement
Package: Both parties discuss before delivery
Port of Loading: Qingdao Port
Lead Time: One month or based on the customer's needs
Minimum order: 1 set
Fabrication standard: Chinese Standard or other standard which client accepted

General Fabrication Requirements
Here is general fabrication requirements for our telecom tower; however, both parties must discuss all drawings and confirm all shop drawings, technical specification, and which standard to conform.
Before mass production, we must receive all signed approved shop drawings and technical documents from our client.
 
Our Fabrication shall be in strict accordance with detail Drawings prepared by the Contractor and approved by the Engineer.  Fabrication shall begin after the approval of the shop assembly and tests.
      
Shearing   
Shearing and cutting shall be performed carefully and all portions of the work which will be exposed to view after completion shall be finished neatly.  Manually guided cutting torches shall not be used.
 
All material over 13 (or 12) mm thick shall be cold sawn or machine flame cut.
Cropping or shearing shall be allowed for material thickness of 13 mm or less.
Flame cutting of high yield steel shall be preceded by a slight preheat operation by passing the cutting flame over the part to be cut.
All flame-cut edges shall be ground clean.
      
Bending
Bending shall be carried out in such a manner as to avoid indentation and surface damage. All bending over 5^o, or high yield steel, shall be performed while the material is hot.
 
Welding
No welding shall be done unless prior approval has been obtained from the Engineer.
Welding shall not be allowed at tower attachment points for conductor, shield-wire, insulators or associated assemblies or brackets.
 
Sub-punching
All holes in structural steel less than 10 mm thickness may be punched to full size unless otherwise noted on the approved Drawings.  Holes shown on the Drawings as drilled holes and all holes in structural steel 10 mm or more in thickness and tension members of cross-arms shall be drilled or sub-punched and reamed.
 
All holes shall be clean cut and without torn or ragged edges.  All burrs resulting from reaming or drilling shall be removed.  All holes shall be cylindrical and perpendicular to the member.
 
Where necessary to avoid distortion of the holes, holes close to the points of bends shall be made after bending.
 
Punching
For punching to full size, the diameter of the punch shall be 1.0 mm larger than the nominal diameter of the bolt, and the diameter of the die shall not be more than 1.5mm larger than the diameter of the punch. For sub-punching, the diameter of the punch shall be 4 mm smaller than the nominal diameter of the bolt, and the diameter of the die shall be not more than 2 mm larger than the diameter of the punch.  Sub-punching for reamed work shall be such that after reaming no punch surface shall appear in the periphery of the hole.
 
Hole Size
Where holes are reamed or drilled, the diameter of the finished hole shall be not greater than the nominal diameter of the bolt plus 1.0 mm.
 
Accuracy
All holes shall be spaced accurately in accordance with the Drawings and shall be located on the gauge lines.
The maximum allowable variation in hole spacing from that indicated on the Drawings for all bolt holes shall be 0.8 mm.
 
Fabrication Tolerances
A specification for tolerances shall be submitted for approval by the Engineer prior to commencement of fabrication.
 
Bolt List
A complete list of bolts showing their lengths and the members, which they are to connect shall be given on the erection diagrams.
 
Locking Devices
Locking devices for tower bolts will not be required, but point punching shall be performed.
 
Anti-theft Fasteners    
Appropriate anti-theft fasteners for example Huck-bolting shall be applied on all the towers up to the level of anti-climbing devices, to prevent theft of tower members.
 
Piece Marks
All pieces shall be stamped before galvanizing with the piece marks shown on the erection Drawings, with the marking not less than 20 mm high placed in the same relative location on all pieces.  The marking shall be plainly visible after galvanizing.
 
Galvanizing
All material shall be hot-dip galvanized after fabrication in accordance with the latest revision of GB/T 13912-2002 or ASTM Specification A 123.
 
Material that has been rejected because of bare spots or other coating defects shall either be stripped and re-galvanized, or the uncoated areas shall be recoated by an approved method.
 
All plates and shapes which have been warped by the galvanizing process shall be straightened by being re-rolled or pressed.  The material shall not be hammered or otherwise straightened in a manner that will injure the protective coating.
 
Approval shall be secured from the Engineer if galvanizing is done outside of the Contractor's plant.
 
All galvanized steelwork shall be protected against white storage stain by using an approved dichromate solution treatment immediately following galvanizing.
 
 
APPLICABLE STANDARD AND CODES
All towers manufactured and design shall be generally in accordance with latest revision of the following standards except where specifically directed otherwise.
General
IEC 60826    -  Design criteria of overhead lines
IEC 60652    -  Loading tests on overhead line structures
ISO 1459    -  Metallic coatings - Protection against corrosion by Hot Dip Galvanizing
ISO 1461    -  Hot dip galvanized coatings on fabricated iron and steel articles
ISO 12944    -  Paint coatings, corrosion protection, and structural steelwork
ISO 898-1    -  Mechanical properties of fasteners. Part 1-Bolts, Screws and studs
ISO 630    -  Structural Steels - plates, wide flats, bars, sections and profiles
ISO 657    -  Hot rolled structural steel plates tolerances on dimensions and shape
ISO 7411    -  Hexagon Bolts for high strength structural bolting with large width across flats
ISO 657-5    -  Hot rolled Structural Steel Sections equal and unequal leg angles
ISO 7452    -  Hot rolled structural steel plates tolerances on dimensions and shape
BS EN 50341-1  - Overhead electrical lines exceeding AC 45kV -General Requirements
BS 8004    -  Code of Practice for Foundations
BS 8115    -  Structural use of concrete
ANSI10-97    - Design of latticed steel transmission structures
IEC 60050 (151)                         International Electro-technical Vocabulary
                                       Part 51 Electrical and Magnetic Devices
IEC 60050 (601)                      Chapter 601: Generation, transmission and distribution of electricity-General
IEC 60050 (601)                    Chapter 601: Generation, transmission and distribution of electricity-Operation
IEC 60059                              IEC standard current ratings
Chinese Standard  
American Standards: 
DIN VDE 0101                       -  Isokeraunic Level
VDE 0201                              - Climatic and environmental   conditions
CVDE 0210                           -  Minimum safety factors under    simultaneous working loads
ISO R898 Mechanical Properties of Fasteners
BS EN ISO 1461:1991 - High dip galvanized coatings on fabricated iron and steel articles. Specifications and standards
A) BS 5950: Welding Terms And Symbols
B) BS 729: Hot - Dip Galvanised Coating On Iron And Steel Articles
C) BS 2901: Filler Rods And Wires For Gas Shielded Arc Welding: Part 1 Ferritic Steels
D) BS 3692: ISO Metric Precision Hexagon Bolts, Screws And Nuts
E) BS 4360: Weldable Structural Steel
F ) BS 5135: Metal - Arc Welding Of Carbon And Carbon Manganese Steel
G) BS 5950: Part 1: Code Of Practice For Loading Latticed Tower & Masts
Part 2: Guide To The Background And Use Of Part 1"Code OF Practice For Loading"
Part 3: Strength Assessment of Members
H) DD 133 (1986): Code Of Practice For Loading Latticed Tower & Masts
I) BS 4592 (1987): Part 2: Specification For Expanded Metal Grating Panels
J) BS 4592 (1977): Code Of Practice For Protective Coating Of Iron And Steel Structure Against Corrosion
K) BS 4190: Bracing & Flanged Bolts
L) BS 4190: Rolled Steel sections, Flats & Plates
 
If any special requirement, we can design and discuss with client.
  Megatro  telecom monopole towers



This photo refers to our 40m telecom monopole tower, with technical data as follow:
? 40m above the ground level
? Bottom diameter 1200mm and top diameter 400mm
?Built in 4 segment of length 10.6m, 10.6m, 10.6m, 10m
? weight about 18 tons
? Take up to 12 GSM &16 microwave antenna
? Withstand wind speed of 170kmp
? International approved design
? Safety measures well addressed
 


Accessories:
? Working and rest platforms
? Horizontal cable gantries
? Antenna mounts
? Anti-climb guard & other safety devices
? Paint kit (ICAO standards)
? Obstruction lighting system (ICAO standards)
? Lightning protection kit
? Palisade fence
? Canopy
 
Design Standards:
TIA/EIA 222-G, or BS8100, EUROCODE 3 PART 3-1
 
Materials:
? Legs Q345B, or ASTM A572 GR50, or ST 52-3, or S355JR
? Braces and plates Q235B, or ASTM A36, or S235, Or ST 37-2
 Bolts: Chinese grade 6.8 and 8.8, which similar to ASTM A394
 
Fabrication
A) Dimension and tolerance for angle are according to GB/T1591-1994, similar to EN 10056-1/2
B) Hot dip galvanization in accordance with GB/T 13912-2002, which similar to ASTM A 123
C) The welding will be performance in accordance with AWS D1.1 or CWB standard

Connections:
Bolts (ISO 8.8, SAE Grade 5, or ASTM A-325) + flat washers, nuts and spring
washers (5% hardware overage)
Anti-Corrosion Treatment: All steel elements are hot-dip galvanized (ASTM A123)
Paint kit (white/orange)
Anchoring: Anchor rods (ASTM F1554) used with leveling nuts and a positioning template
 
Shipment:
Standard 20' to 40' ISO container
Documentation:
? Detailed packing list
? Installation & maintenance manual
? Foundation design
 
MEGATRO is a full service engineering company with a global reputation for delivering excellence and innovation in telecommunications systems.
Over 10 years of experience and innovation in engineering, designing and building towers has evolved MEGATRO into its current form:
l        Full Turn-Key provider including site acquisition, engineering services, manufacturing,   field services-DAS, tech services, value added reseller and monitoring, maintenance and network ownership
l        Specialize in developing supplying and building wireless and wired networks and in-building telecommunications systems, as well as energy infrastructure
l        Single source from Design to System Integration
l        Top quality, ISO 9001 registered
A complete selection of towers including self-support, lattice steel tower, monopoles and guyed towers, form custom-designed radar towers to broadcast towers and energy infrastructure. MEGATRO carries a variety of related products including fall protection, transmission lines, antennas, obstruction lights, and accessories, and other products if client need, MEGATRO also tailored product as per client condition.

MEGATRO mainly design all kinds of towers and posts for:
a.      Telecoms
b.      Power transmission
c.      TV and Radio Broadcast
d.      Roads and City Development
e.      Wind energy solution
f.        Other steel workshop and structures
 
Our complete selection of towers includes:
a.      Self-supporting
b.      Monopoles
c.      Guyed towers
d.      Custom-designed radar towers
e.      Broadcast towers
f.        Power transmission
 
MEGATRO also designs and manufactures tower related products including:
a.      Fall protection
b.      Antenna brackets
c.      Other accessories if needed by clients
 
For this 40m monopole telecom tower, Our MEGATRO performs in-house design activities by PLS software or other software. Our Engineering Department is boasting of highly qualified engineering who are conversant with international codes and standards. The work is carried out with extensive use of CAE/CAD via a large of computer network. The computer hardware & drafting software are liked to the CNC work

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