fli structure selection guide.pdf

Steel Structures

Structure Selection Guide

ALWAYS AIMING HIGHER!

Issue 5 - 2013


Francis & Lewis International Ltd, Waterwells Drive, Waterwells Business Park, Gloucester, GL2 2AA 01452 722 200 - www.fli.co.uk - [email protected]

Contents

About FLI ...................................................................................................................3Our Capabilities .........................................................................................................4

FLI Cypress Tree .........................................................................................................5 FLI Pine Tree ...............................................................................................................7FLI Elm Tree ...............................................................................................................8

Slimline Parralel Lattice (SLP2) ...................................................................................9Lightweight Slimline Parallel Lattice (SLP3 & SLP4) .................................................10Single Taper Lattice (SLT1) .......................................................................................11Single Taper Lattice (SLT2) ......................................................................................12Slimlime Taper Lattice (SLT3) ..................................................................................13Dual User Lattice (DLT1) ..........................................................................................14Dual User Lattice (DLT2) ..........................................................................................15Dual User Lattice (DLT3) ..........................................................................................16Four-User Tower (4LT1) ............................................................................................17Four-User Tower (4LT2) ............................................................................................18

Single User Monopole (SM1) ...................................................................................19Single User Monopole (SM2) ...................................................................................20Dual User Monopole (DM1) .....................................................................................21Dual User Monopole (DM2) .....................................................................................22Four User Monopole (4M1) .....................................................................................23Rocket Monopole ....................................................................................................24Streetworks Single User Monopole .........................................................................25Telegraph Pole .........................................................................................................26

High Capacity Transmission / Switch Tower (Tubular) ............................................27High Capacity Transmission / Switch Tower (Angle) ................................................28Tilt Towers ...............................................................................................................29Guyed Masts ...........................................................................................................30Radar Towers ..........................................................................................................31Onshore & Offshore Met Masts ...............................................................................32

Rooftop Solutions ....................................................................................................34Bespoke Structures ..................................................................................................35Structural Services ...................................................................................................36Additional Services ..................................................................................................37



About FLI

Francis & Lewis International Ltd (FLI Structures) are part of the Haley group, the best collection of specialist companies owned & operated by engineers. Established for over 60 years and based in Gloucester, we have all of our project management, design & engineering, manufacturing and installation teams based in-house.

FLI are the UK’s No.1 for the design and manufacture of tower structures and screw pile foundations. This is down to our strong culture of innovation and our high quality standards.

FLI have around 70 dedicated permanent staff who have the ability and knowledge to produce bespoke products to solve the needs of our clients. Our design, engineering and manufacturing teams work closely with our clients to meet their requirements.

Our in-house capabilities give us an edge over our competitors and allow us to provide a better service in every way. Our designs are award winning and are produced with manufacturing and ease of installation in mind.

FLI is fully certified to all relevant standards, providing good quality design, manufacture, installation and survey services. All manufacturing is carried out by Lloyd’s certified welders, employing procedures to British and European standards.



Our Capabilities

With over 60 years experience in steel structures, our in-house design and manufacturing capability enables us to offer you competitive prices and shorter delivery lead times. We have the ability to carry out site specific checks and design a solution from an array of standard ‘off-the-shelf’ designs. We also provide bespoke solutions for difficult sites.

Design (In House)FLI Structural Engineers are experienced in designing to Railway, Highways, Telecoms and MoD standards. As well as providing efficient designs, we understand the factors that add time and money to the manufacturing and installation processes, which enables us to offer competitive solutions. Services include Form 1, Site specific Form 2, CAT2 & CAT3 checks, as well as AIP’s & Departures, and MoD R13 & R14.

Manufacture & Stock (In House)Our in-house manufacturing ability enables us to control and maintain high quality standards and gives us flexibility to respond quickly to urgent requirements. We have state-of-the-art CNC machinery, fully qualified welders and a stock holding for quick delivery.

InstallationFLI have installation teams able to install our screw piles with our very own range of torque motors including the UK’s biggest. FLI’s installation teams operate on Railways, Highways & Construction sites. Training courses are also available (held at FLI) to enhance the skills of your workforce. Site supervision with our PTS personnel can be provided to audit your installation team.



A telecoms mast in the form of a Cypress Tree. The layout is such that all antenna are completely concealed within the foliage and dishes can be designed to suit. Cypress Trees are available in a variety of heights and able to accommodate up to 3 users.

Specification:

Width: Profile varies with height.

Heights: 8m, 10m, 12m, 13m, 15m, 16m, 18m, 20m, 22m, 24m, 30m Specials / multi user trees on request

Capacity per user: 3 No. Panel Antennas (6 No. Antennae Optional) 3 No. Ø600 DRL

Finish: Galvanised to BS EN 1461

Extendible & Climbable options available on request

FLI Cypress Tree (Up To 3 Users)



FLI Cypress Tree (Up To 3 Users)



A telecoms mast in the form of a Pine Tree. The realistic appearance of the branch-es has been achieved using our Cypress tree experience. The antennae & dishes are mounted between the branches. The Pine Tree is a climbable structure employing a removable step or a fixed ladder system and fixed fall arrest. The Pine Tree is suitable for up to 3 users.

Specification:

Width: Tapering pole, profile varies with height.

Heights: Up To 36m / Specials on request

Capacity Per User: 6 No. Panel Antennae 2 No. Ø600 DRL


FLI Pine Tree (Up To 3 Users)



A telecoms mast in the form of a dead Elm Tree. The layout is such that all equipment is completely concealed within a GRP shroud on the top of the structure. Access is via a cherry picker and the GRP shroud can be opened manually or alternatively lifted off in one piece to give access to the equipment. Elm Trees are suitable for single users.

Specification:

Width: Diameter 500mm

Heights: Up To 22.5m / Specials on request

Capacity: 3 No. Panel Antennae 1 No. Ø300 DRL


FLI Elm Tree



A triangular, slimline, 850mm wide, parallel solid round bar tower suitable for a single user and dual users subject to loading requirements. The structure is fully welded and features an integral ladder, incorporated into the braces of one face, anti-climb mesh panels, anti-climb door, Fall Arrest System and feeder management brackets as standard. It can be crane built or installed using a derrick by hand.

Specification:

Width: 850mm Parallel

Heights: Standard - 15m, 17.5m, 20m, 22.5m & 25m and any bespoke height up to 30m

Loading: Standard is 1 user to 25m, although subject to site additional loading is possible

Standard Capacity: 3 No. UMTS Panel Antennae2 No. Ø600 DRL 1 No. Ø300 DRLDishes mounted above or below antennae


Slimline Parallel Lattice (SLP2)



A triangular, slimline, 1200mm wide, parallel tube legs & braces (SLP4 has tube legs & angle braces) suitable for a single user dual; users subject to loading requirements. The structure has bolted legs and braces and features an integral ladder incorporated into the braces of one face, (SLP4 has a conventional ladder), anti-climb mesh panels, anti-climb door, Fall Arrest System and feeder management brackets as standard. It can be crane built or installed using a derrick by hand.

Specification:

Width: 1200mm Parallel

SLP3 Heights (3m high sections): Standard - 10m, 15m, 20m, 29m and any bespoke height up to 29m

Standard Capacity: 3 No. 1296 x 560 Panel Antennas or equivalent

SLP4 Heights (5m high sections): Standard - 15m, 20m, 25m, 30m, 35m, 40m and any bespoke height up to 40m



Lightweight Slimline Parallel Lattice (SLP3 & SLP4)



A very slim, triangular, tapering solid round bar tower suitable for a single user to a height of 30m. The structure is fully welded and features an external ladder with integral feeder management brackets, anti-climb mesh panels, anti-climb door and Fall Arrest System as standard.

Specification:

Width: Top – 400mm & bottom varies

Heights: 15m, 17.5m, 20m, 22.5m, 25m, 27.25m & 30m (Specials on request)

Foundation Sizes: 15m: 2.6 x 2.6 x 1.2m Deep 20m: 3.1 x 3.1 x 1.2m Deep25m: 3.7 x 3.7 x 1.2m Deep30m: 4.0 x 4.0 x 1.2m Deep

Capacity: 3 No. UMTS Panel Antennae 2 No. Ø600 DRL 1 No. Ø300 DRL Dishes mounted above or below antennae


Single Taper Lattice (SLT1)



A slim, triangular, tapering solid round bar tower suitable for a single user to a height of 40m. The structure is fully welded and features an external ladder with integral feeder management brackets, high anti-climb mesh panels, anti-climb door and Fall Arrest System as standard.

Specification:

Width: Top – 600mm & bottom varies

Heights: 15m, 20m, 25m, 30m, 35m & 40m (Specials on request)

Foundation Sizes: 15m: 2.5 x 2.5 x 1.0m Deep20m: 3.0 x 3.0 x 1.0m Deep25m: 3.5 x 3.5 x 1.0m Deep30m: 4.0 x 4.0 x 1.0m Deep35m: 4.4 x 4.4 x 1.0m Deep40m: 4.9 x 4.9 x 1.0m Deep Capacity: 4 No. Dipole/Omni/Yagi Antennae 2 No. Ø600 DRLDishes mounted above or below antennae


Single Taper Lattice (SLT2)



A very slim, square, tapering angle tower suitable for a single user to a height of 30m. The structure is assembled from kit form and features an external ladder with integral feeder management brackets, anti-climb mesh panels, anti-climb door and Fall Arrest System as standard. The angle construction of this tower makes it very economical. When supplied in smaller pieces, a complete tower occupies a low volume, which makes this type of tower ideal for shipping.

2 User Tapered LatticeBased on the same modular tower range with the same ancillary specification. The extra capacity to carry a 2nd user comes from moving down a module within the range. This has the effect of slightly increasing the towers top and bottom dimensions but doubles the loading capacity.

Specification:

Width: Top – 400mm (Single User Tower) Top – 600mm (2 User Tower)Bottom - Varies

Heights: 15m & 30m (Specials on request)

Foundation Sizes: 15m: 3.0 x 3.0 x 1.2m Deep 20m: 3.6 x 3.6 x 1.2m Deep25m: 4.3 x 4.3 x 1.2m Deep30m: 4.9 x 4.9 x 1.2m Deep

Capacity (Per User): 3 No. Large Panel Antennae (Ae= 0.724m² ea) 2 No. Ø600 DRL OR 6 No. Small Panel Antennae (Ae= 0.291m² ea) 2 No. Ø600 DRLThe dishes can be mounted above or below antennae


Slimline Taper Lattice (SLT3)



A tapering triangular angle tower, suitable for two users to a height of 25m. The tower has a tubular head-frame on which either user 1 or user 2 can be mounted. The structure features an external ladder, anti-climb mesh panels, anti-climb door, Fall Arrest System and feeder management angles as standard.

Specification:

Width: Top – 850mm & bottom varies Heights:15m, 20m & 25m (specials on re-quest)

Foundation Sizes: 15m: 3.6x3.6x1.0m Deep20m: 4.2x4.2x1.0m Deep25m: 4.9x4.9x1.0m Deep

Capacity: Either a single user3 No 2G Panel Antennae6 No 3G Panel Antennae4 No. Ø600 DRL

Or

User 1: 3 No. UMTS Panel Antennae 2 No. Ø600 DRL 1 No. Ø300 DRL

Dishes mounted above or below antennae

User 2: 3 No. UMTS Panel Antennae 3 No. GSM Panel Antennae 2 No. Ø600 DRL


Dual User Lattice (DLT1)



A tapering triangular angle tower, suitable for two users to a height of 30m. The tower has a tubular head-frame on which either user can be mounted. The structure features an external ladder, anti-climb mesh panels, anti-climb door, Fall Arrest System and feeder management angles as standard.

Specification:

Width: Top – 1230mmBottom - Varies

Heights: 15m, 17.1m, 22.5m, 25m & 30m (specials on request)

Foundation Sizes:15m: 3.8x3.8x1.0m Deep17.1m: 4.1x4.1x1.0m Deep22.5m: 5.0x5.0x1.0m Deep25m: 5.5x5.5x1.0m Deep30m: 5.8x5.8x1.0m Deep

Capacity:A single user6 No Panel Antennae4 No. Ø600 DRL

Or

User 1: 3 No Panel Antennae3 No. Ø600 DRL


User 2: 3 No Panel Antennae3 No. Ø600 DRL





A tapering square angle tower, suitable for two users to a height of 18m. The tower has ring head frames on which either user can be mounted. The structure features an external ladder, anti-climb mesh panels,anti-climb door, Fall Arrest System and feeder management as standard.

Specification:

Width: Top – 900mm Bottom – 1400mm

Heights: 12m 15m & 18m Specials on request

Foundation Size: 4.4 x 4.4 x 1.2m Deep

Capacity:User 1: 3 No 2G Panel Antennae3 No 3G Panel Antennae2 No. Ø600 DRL

User 2:3 No 2G Panel Antennae3 No 3G Panel Antennae2 No. Ø600 DRL




Four-User Tower (4LT1)

A modular structure, square in plan, fabricated from angle, capable of accommodating up to four telecoms operators. The structure features an internal heavy duty ladder, anti-climb device & Fall Arrest System.

Specification:

Width:Top – 1250mmBottom – Varies

Heights:20m, 25m & 30m Specials on request (6-8 weeks)

Foundation Sizes: 20m: 5.3x5.3x1.2m Deep25m: 5.8x5.8x1.2m Deep30m: 6.5x6.5x1.2m Deep

Capacity Per User:3 No. UMTS Panel Antennae 3 No. GSM Panel Antennae2 No. Ø600 DRL Equipment mounted on ringed or delta head frame.




A modular structure, square in plan, fabricated from solid bar and tube, capable of accommodating up to four telecoms operators to a height of 30m.The structure features an internal heavy duty ladder, anti-climb mesh panels, anti-climb door & Fall Arrest System.

Specification:

Width: Top – 1600mmBottom – Varies

Heights: 20m, 25m & 30m Specials on request Foundation Sizes: 20m: 4.9x4.9x1.2m Deep25m: 5.7x5.7x1.2m Deep30m: 6.4x6.4x1.2m Deep

Capacity Per User: 6 No. 2G/3G Panel Antennae4 No. Ø600 DRL Equipment mounted on ringed or delta head frame.


Four-User Tower (4LT2)



A range of slim, single user poles with the versatility to mount dishes above or below the panel antennae. The structure features an external spine ladder, anti-climb door, Fall Arrest System and conveniently positioned foot plates and attachment rings as standard.

Specification: Width: Top – 300 / 400mmBottom - Varies

Heights:15m, 17.5m, 20m,22.5m, 25m & 30m Specials on request

Foundation Sizes: 15m: 2.55x2.55x1.2m Deep20m: 3.1 x 3.1 x 1.2m Deep25m: 3.6 x 3.6 x 1.2m Deep30m: 4.2 x 4.2 x 1.2m Deep

Capacity: 3 No. UMTS Panel Antennae2 No. Ø600 DRL1 No. Ø300 DRLDishes mounted above or below antennae


Single User Monopole (SM1)



Single User Monopole (SM2)

A range of heavy duty poles suitable for either one or two users. The structure features an external heavy duty ladder, anti-climb door, fall arrest system, triangular head-frame and conveniently positioned foot plates and attachment rings for access.

Specification:

Width: Top – 400mm & Bottom - Varies

Heights: 12.5m ,15m, 17.1, 20m, 22.5m, 25m & 27.5m Specials on request

Foundation Sizes: 12.5m: 2.9 x 2.9 x 1.2m Deep15m: 3.2 x 3.2 x 1.2m Deep17.1m: 3.5 x 3.5 x 1.2m Deep22.5m: 4.2 x 4.2 x 1.2m Deep25m: 4.5 x 4.5 x 1.2m Deep27.5m: 4.7 x 4.7 x 1.2m Deep

Capacity:

A single user6 No. UMTS Panel Antennae3 No. GSM Panel Antennae4 No. Ø600 DRLDishes mounted below head frame

User 1: 3 No. UMTS Panel Antennae3 No. GSM Panel Antennae2 No. Ø600 DRL1 No. Ø300 DRLDishes mounted below head frame


User 2: 3 No. UMTS Panel Antennae2 No. Ø600 DRL



A range of slim, dual user poles. The structure features an external spine ladder, anti-climb door, Fall Arrest System and conveniently positioned foot plates and attachment rings for both users as standard.

Specification:

Width: Top – 300 / 400mmBottom – Varies Heights: 15m, 17.5m, 20m,22.5m, 25m & 30m Specials on request

Foundation Sizes:15m: 3.15x3.15x1.2m Deep20m: 3.85x3.85x1.2m Deep25m: 4.5 x 4.5 x 1.2m Deep30m: 5.05x5.05x1.2m Deep

Capacity:User 1: 3 No. UMTS Panel Antennae2 No. Ø600 DRL1 No. Ø300 DRLDishes mounted above or below antennae

User 2: 3 No. UMTS Panel Antennae3 No. GSM Panel Antennae3 No. Ø600 DRL Dishes mounted below the antennae


Dual User Monopole (DM1)



A range of dual user poles up to a height of 27.5m. The structure features an external heavy duty ladder, anti-climb door, Fall Arrest System and two delta or ring head frames.

Specification:

Width: Top – 350mm & Bottom – Varies

Heights: 12.5m, 15m, 22.5m, 27.5mSpecials on request

Foundation Sizes: 12.5m: 3.4x3.4x1.2m Deep15.0m: 3.7x3.7x1.2m Deep22.5m: 4.7x4.7x1.2m Deep27.5m: 5.3x5.3x1.2m Deep

Capacity:A single user12 No Panel Antennae4 No. Ø600 DRL

Or

User 1: 6 No. Panel Antennae2 No. Ø600 DRLDishes mounted on head frame

User 2:6 No. Panel Antennae2 No. Ø600 DRLDishes mounted on head frame


Dual User Monopole (DM2)



A range of multi user poles to a height of 30m. The structure features an external heavy duty ladder, anti-climb door, Fall Arrest System and up to four delta or ring head frames.

Specification: Width:Top – Varies from 650mm to 770mm & Bottom Varies from 1050mm to 1475mm Heights: 20m, 25m & 30m Specials on request Foundation Sizes: 20m: 5.6x5.6x1.2m Deep25m: 6.3x6.3x1.2m Deep30m: 7.0x7.0x1.2m Deep

Capacity:Each User:6 No. 2G/3G Panel Antennae4 No. Ø600 DRLDishes mounted on head frame


Four User Monopole (4M1)



A hand buildable (using a specialist derrick) Monopole suitable for a single user. Features include a spine ladder, anti-climb door, Fall Arrest System as standard. It can be crane built or installed using some small plant for the base section then by hand using a specialist derrick.

Specification:

Width:Top - 273mm Bottom – 508mm

Height as standard is 15.85m (includes a 3.45m headframe)



Rocket Monopole



A range of extremely slim, singleuser poles, able to support 3 No.Panel Antennae and 1 No. Ø300DRL. To keep clean lines the polesare accessed via a mobile elevatedworking platform. CHS root foundations are available if required.

Specification:

Width: Top – from 230mmBottom – from 390mm

Heights: 10m, 12.5m & 15m Specials on request

Capacity:3 No. UMTSPanel Antennae1 No. Ø300 DRL

OR

Ø170mm Drum Antenna


Streetworks Single User Monopole



The FLI Telegraph pole provides the opportunity to place smaller structures, ideal for micro sites, into Greenfield locations with minimal aesthetic impact.

The pole is a CHS tube up to 16.5M, with paintedeffect, mimicking the colour and graining of a treated timber telegraph pole. This simple design offers you a quick, cost effective solution to difficult sites, and is ideal for all Greenfield areas and on streetwork sites.

The Telegraph pole can also be supplied with a CHS root foundation to minimise the size of the foundation.

We can install studs for Latchway removable climbing rings, or brackets to support a Metreel removable ladder if required.

Capacity: 1 No Ø 280mm x 1365mm (Shrouded Drum Antenna)1 No Ø 300mm dish

Telegraph Pole



As well as are more popular cellular product ranges, FLI have a number of structures designed to reach far greater heights and carry significantly more equipment. The structures shown here are from our STT & TT30/40 ranges and are constructed from CHS tubes.STT: Heights Up To 70m (2.4m top width)

Capacity: Up To 70 No Dishes & 200 No FeedersMounted at 8 No Decked Platform Levels

TT30/40: Heights Up To 135m (top width varies)

Capacity: Varies Dependant On Height & Location

High Capacity Transmission / Switch Towers (Tubular)



Angle towers also benefit from having a low packed volume making them ideal for export. FLI have several high capacity ranges available.

ATS 950: Heights Up To 60m (0.95m top width)

Capacity: Multiple Users Or Broadcast

ATS 1200: Heights Up To 60m (1.2m top width)


HA4: Heights Up To 70m (top width varies)


High Capacity Transmission / Switch Towers (Angle)



Winched up Mast 80m high

A mast that can be erected quickly without the need of a crane. Suitable for Emergency masts, temporary mast or meteorological masts.

Specification:

Width: Mast 400mm

Capacity: Subject to site conditions

Site requirements: Open flat area approximately 120m square


Tilt Towers



FLI have a large selection of parallel structures designed for guyed mast applications. These include the Unimast products with their fully welded construction, integral climbing rungs, each 3m long section is light enough to be carried and capable of reaching heights of 85m. The FLI series ranges from the FL85 to the FL250 with 2.5m wide and 7m long sections capable of being installed to a height of 300m.

Though guyed masts are not common due to the large amount of land required, they are the most cost effective way to support equipment at height.

Guyed Masts



Our radar towers have been installed all over the world, including the UK, Europe, Africa, South America, South East Asia and the Middle East. This has involved designing highly stressed structures for climates varying from Tromso in Norway, which is well inside the Arctic Circle, El Diego Garcia in the Indian Ocean and Harare in Zimbabwe. The deflection limits on these types of structures are very low and the radar loads are high. Hence the frame of the cabin is a major structural element, transferring the radar loads to the tower.

Specification

· Height: 5m - 30m, in 5m increments.· Site specific heights available.· Suitable for primary and secondary radar antenna.· Radome interface options.· Waveguide support.· High level equipment enclosures.· Lightning finials according to specification.

Radar Towers



FLI design, manufacture, supply & install Onshore & Offshore Met Masts for wind farm sites. FLI have in-house engineers & designers as well as on-site fabrication facilities. Bespoke solutions, guyed lattice masts and full turnkey solutions are available upon request.

• Slim Profile, efficient members sizes: minimal visual impact

• Welded modules: quick installation & reduced maintenance

• Round structural members reduce wind disturbance

Specification:

Height: 30m – 120m Plan shape: MM30 Triangular : MM40 Square

Loading: Meteorological sensors, anemometers and wind vanes fitted on boom arms positioned at various heights.

Tower top face width: Standard duty – 400mmMedium duty – 540mmHeavy duty – 680mm(Dependant on location & tower height)

Access:External 400m wide un-caged ladder fitted with Latchway fall arrest system. Anti-climb device fitted at tower base.

Finish: Galvanised to BS EN 1461,

Onshore & Offshore Met Masts



Onshore & Offshore Met Masts



Rooftop Solutions

Hinged Parapet MountA rooftop solution for face mounted antenna. The antenna can easily be pivoted onto the roof for maintenance, without the need forspecialist access or tools. Available as non-penetrating, free standing or mounted on standard concrete plinths.

Specification:

Roof height: 50mCapacity: 2 No. Panel AntennaeGalvanised to BS EN 1461

Hinged Roof MountA rooftop solution for stub mounted antennae. The stub pole can be as a fixed item or with a hinge at the base allowing the antenna to be lowered to roof level for access, alleviating the need for climbing. Available as free standing (non-penetrating) or mounted on standard concrete plinths.

Specification:

Base Size: Varies.Roof height: Up to 50mRoof type: Accessible (1.5 kN/m²)Capacity: 3 No. Panel Antennae 1 No. Ø600 DRLGalvanised to BS EN 1461



FLI staff enjoy designing & manufacturing new products. We can provide a bespoke service very economically because, unusually for a steelwork manufacturer, we employ innovative chartered engineers who can help you to find the right solution for your site. We can even provide an accurate 3D visualisation of your structures to illustrate the visual impact of the proposals on the surrounding area. You and the planners can therefore be totally sure of what you will be getting before we make anything.

We are happy to offer you alternatives and to work with a range of materials to suit your needs. We can provide a turnkey solution including foundation design and installation of the structure. These structures are ideal where there is an urban regeneration programme in place.

Bespoke Structures



Site/Tower Survey & Structural Analysis

FLI have a strong engineering team, with all work being carried out, or supervised, by Chartered Engineers. We are able to offer many consulting/design services including:

· Analysis of standard products to support a non-standard loading configuration· Structural Analysis· Stage 1 Site Surveys· Stage 2 Geotechnical Surveys· Foundation Design· Tower surveys

Please direct any enquiries for special structures or other services to the FLI Structures sales team listed at the foot of the contents page.

Structure Installation & Rigging Kits

With dedicated installation teams and a manufacturing labour force also trained as installers, FLI can install any of our structures or provide guidance to our customers installers.

In addition to standard erection using a crane, FLI are also able to offer a hand installation service for any of our bolted lattice towers. This type of install requires the use of specially designed ’Derrick’ poles that are used to lift either elements or modules into position. These rigging kits arealso available for sale to other installation companies and are supplied with detailed drawings & method statements describing their use.

Please contact FLI if you require further information on this service or associated products.

Structural Services



Additional Services

Pile TestingTension, compression and lateral pile load testing is available. Sacrificial piles can be installed and tested to failure if required.

Bespoke SolutionsBespoke solutions can be produced to meet the site requirements. Completed by our in-house teams the process is quick and efficient.

Geotechnical InvestigationsSite / Ground Investigations are carried out by us in accordance with the specifications for deep pile foundations, i.e. to minimum depth using dynamic probes and window sampling rigs.

FLI can provide you with a full turnkey solution, with additional services listed below. Upon review of the borehole data, one of our Chartered Engineers will innovate a solution to your specification. Our focus on innovation has been recognised by Network Rail, with FLI winning the Innovation Award in 2009.

Steel FabricationOur fabrication workshop contains state of the art CNC machinery for efficient & quick production. Welding is carried out by Lloyd’s Certified welders and all our products carry CE certification.



Angle towersCypress tree

Elegant feature towersEnvironmentally sensitive towers

Guyed mastsHelical piles

Meteorological mastsMonopoles

Pine treeRoof top structures

Solid bar towersTube towers

Additional user assessmentsFoundation design & construction

Helical pilesMaintenance

Structural analysisStructural surveys

Towers and mast installation3D design

Services provided

Products


fli structure selection guide.pdf

Documents

user lattice dlt1

user lattice dlt2

user lattice dlt3

single user monopole

user monopole sm1

user monopole sm2

user monopole dm1

user monopole dm2