Pre-Cast Pole Footings BY WG ENGINEERING
REVISION 3.0 - 19/09/2016 WG ENGINEERING - ABN 82320930310 PHONE: 0429865010 WEBSITE: WWW.WGENGINEERING.COM.AU
Contents
Page
Product Introduction 1
Justification and Benefits 2 Detailed Illustration 3
Examples for Improvement 4
Standard Range 7 Variable Option for Poor Soil 8
Our Offer 9
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Standard Pole Flange or
Engineered to suit design
Fully Welded
Reinforcing Bar
Elevated above turf or
garden beds for easy
maintenance
Metric Thread + Nuts
PRODUCT INTRODUCTION
WG Engineering Pre-Cast Pole Footings are designed for use with street lighting, traffic
lights, signs and other poles. The footings improve strength and reliability while reducing
corrosion and maintenance to ensure safe, reliable and low cost infrastructure for whole of
life.
Cut-away View - Typical installation of Pre-Cast Pole Footing
Customer Pole or Post
Solid Concrete with strength
and finish as required
Electrical Conduits
as required
Steel Reinforcing
cast into concrete
Stabilised Backfill
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JUSTIFICATION AND BENEFITS
Our Pre-Cast Concrete Pole Footings offer the following benefits over many in situ methods:
Reliable and Safe
Pre-cast Pole footings are a durable, engineered product designed and constructed to meet
axial, shear, torsional and bending moment loads to reduce risk of injury and ensure reliable
and safe pole structures in all environments. Simple lifting, levelling and rotation tools and
techniques ensure accurate installation in a safe and manageable work environment.
Installation can be planned to coincide with electrical trades and civil work as required.
Low Cost
Pre-cast footings lower overall costs from design right through to installation and whole of
life. In contrast to traditional on-site concreting and form work, pre-cast footings minimize on
site movements, manual handling, wasted materials, traffic management, time exposure and
overall risk. They can be manufactured off site, well in advance of installation, ready for
transport directly to the job site. Upon arrival, the product is placed into pre-drilled holes,
ready to accept pole installation without waiting for installation of form work, reinforcing,
concrete and curing time.
Reduces Corrosion
Providing pole elevation above ground minimizes water and ground materials contacting the
base of poles to reduce corrosion. This will increase the life of poles and greatly reduce
maintenance cost such as corrosion treatment and/or pole replacement. The product can
also be used in differing soil types and can be easily mowed, snipped and cleaned around
without damaging pole finish/corrosion protection.
Low Maintenance
Visual inspection can be conducted with ease to assure integrity and condition for remnant
life of poles and their footings. Grouting can be eliminated and galvanic pole/stud protection
provided. The product can also be easily removed and re-used or re-positioned if required,
greatly reducing whole of life maintenance cost.
Improves Beautification
Pre-cast pole footings can be a beautiful feature adding aesthetic value to match or contrast
their surrounding environment. The footings are available in natural concrete finish or
rendered to suit their environment.
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DETAILED ILLUSTRATION
The following is a detailed illustration for a typical WG Engineering Pre-Cast Pole Footing.
Top View with pole attached
Top Surface without pole
Internal Structure with pole attached
Complete Product with pole attached
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Example A:
Installation of large poles in contact with ground indicate corrosion. Re-work has been required to
replace pole footing, however, some of the same problems have been replicated. This example would
benefit from pre-cast footings which raise poles above ground level.
Example B:
This style of installation shows visible corrosion at the flange and fastenings at ground level. Steel poles
directly into garden beds cause corrosion. Pre-cast footings would benefit this design and can be easily
altered to suit the any shaped pole.
EXAMPLES FOR IMPROVEMENT
The following are a selection of observed Pole Installations that are not recommended.
WG Engineering offers Pre-Cast Pole Footings to improve the following examples:
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Example E:
In this pole installation, elevating pole above
ground level would reduce corrosion rate of
the pole.
Example C:
These smaller post installations show corrosion due to ground level contact. Reduction of flange plate
size and raising poles using pre-cast footings would reduce deflection and corrosion.
Example D:
In this installation, concrete footing cannot
be visually inspected. Tar has been applied in
an attempt to stop corrosion but actual
condition of flange and fastening is
unknown. Pole Footing is also below road
level, subject to water ingress.
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Example F:
The footing of these pole installations are relatively new but are in direct contact with the ground or below
ground level. This will contribute to corrosion as they are continuously exposed to ground materials and
garden maintenance. They would greatly benefit from raised pre-cast pole footings to reduce corrosion and
allow for simple visual inspection.
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STANDARD RANGE
Please see our standard pole footing sizes as follows. We can also manufacture other sizes
to suit specific requirements.
POLE HEIGHT
NO. OF BOLTS
BOLT SIZE (mm)
DN (mm)
PCD (mm)
FH (mm)
TD (mm)
BD (mm)
HD1 (mm)
HD2 (mm)
PBM (kN-m)
AFBM (kN-m)
Footing Mass (kg)
8 4 M20 160 233 700 333 382 700 400 11 29 178
10 4 M24 210 350 1000 470 540 1000 500 24 75 498
12 4 M24 236 350 1000 470 540 1000 500 32 75 498
15 4 M30 266 350 1000 500 570 1000 600 63 90 565
18 4 M30 327 500 1200 650 734 1200 800 93 172 1113
20 4 M30 352 500 1200 650 734 1200 800 95 172 1113
22 4 M30 378 500 1200 650 734 1200 800 95 172 1113
20 6 M30 402 560 1200 710 794 1200 800 158 172 1322
25 6 M30 410 560 1200 710 794 1200 900 150 194 1322
25 6 M30 438 560 1200 710 794 1200 900 156 194 1322
22 6 M30 449 560 1200 710 794 1200 900 171 194 1322
25 8 M30 470 580 1500 730 835 1500 900 235 303 1802
28 8 M30 517 660 1500 810 915 1500 900 250 303 2174
30 10 M30 590 700 1500 850 955 1500 1000 322 337 2390
28 12 M30 615 800 1500 950 1055 1500 1200 389 405 2945
30 12 M30 686 800 1500 950 1055 1500 1200 495 405 2945
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VARIABLE OPTION FOR POOR SOIL
WG Engineering also provides pre-cast footings for use in poor soil conditions. This option
includes a reinforcing cage with pre-cast top which controls bolt pattern and loose top soil to
simplify installation and quality control on site. It also comes supplied with flexible electrical
conduits that can be pulled through reinforcing bars and positioned to suit the orientation
and depth of cable trenches. Above ground height, footing height, concrete height and
conduit length/diameter can be set by the customer prior to manufacture.
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OUR OFFER
WG Engineering provides the design and manufacture of pre-cast pole footings. We
currently work in collaboration with other professionals, manufacturers and tradespeople in a
multi-discipline environment to reach a complete solution with benefit to all parties involved.
As part of the process, we offer all or some of the following services for this product:
1. An initial survey and reporting service to document the current state of pole and
post assets with a risk based approach to prioritise work as required.
2. Determination of pole axial, shear, torsion and bending moment loads for the
design.
3. Quality engineered design and information provided to your asset management
system so that you are informed of the design before proceeding.
4. Planned manufacture, delivery and installation of pre-cast pole footings using
appropriate equipment to assure safety.
Designs will be verified by a Civil Engineer and agreed with the customer prior to
manufacture. Materials and work will be provided in accordance with appropriate Australian
Standards.
If you wish to use WG Engineering Pre-Cast Pole Footings, please contact us.
Regards,
Wayne Wiley
WG Engineering
Ph: 0429865010
www.wgengineering.com.au
