GRIDMESH ANCHOR GA01 User manual

PATENT PENDING
gridmeshanchor.com

What is the Gridmesh Anchor?
2GRIDMESH ANCHOR
Testing and rating
Within industry there are a large volume of improvised / temporary anchors set every day that will not
pass the minimum requirements as a fall arrest anchor. Think about it this way - A standard passenger
vehicle weighs about 1.5 tonnes. This is approximately equal to a static load of 15kN - the minimum load
requirement for a personal fall arrest anchor.
So ask yourself - if I set up a temporary fall arrest anchor - will it support the weight of
my family car? Look at these examples of temporary anchors and judge for yourself...
The Gridmesh Anchor (GMA) is a
breakthrough product in personal fall
protection. The patent-pending design
allows a user to set a fall protection
anchor point above a grid mesh clad
structure across two supporting beams that
distribute the load of any fall that occurs.
The product can be set up quickly, without
the risk of a fall, enabling a worker to
access locations below safely without the
need for scaffolding, rope technicians or
elevated working platforms.
The GMA is ideal for use in a multitude
of industrial applications and industries,
including oil & gas, petrochemical plants
onshore and offshore drilling rigs, power
stations to name just a few.
These set ups are not rated, tested or proven to be able to take a fall arrest load.

GRIDMESH ANCHOR 3
Applications - the Gridmesh Anchor in use
The Gridmesh Anchor is
designed for use in:
lLNG Plants
lPetrochemical / Chemical Plants
lMine Platforms
lDrilling Rigs
lPower Stations
lMine Sites
lProcessing Plants
lOil & Gas Platforms
l Storage & Ofoading Vessels
lDomestic Gas Plants
lAnywhere you have grid mesh
Product
Applications
and
Industries

1. Using the storage bag, carry
the gridmesh anchor to the desired
location. Ideally there will be a user
at the top of the structure to set
the anchorage on the mesh and
a user below the mesh to arrange
connection to the equipment
from below.
2. Open the storage bag and lay
the GMA base onto the gridmesh
walkway area. Be sure to align the
load points of the GMA onto a
location immediately above the
structural members supporting
the walkway. This may require
placing the base diagonally to the
direction of the mesh slots.
3. On structures where there is
high wind, ocean swell or moving
equipment, it may be appropriate
to secure the GMA to the structure
with rope, tool lanyards or other
appropriate fastening to prevent it
from moving.
4. Open the GMA lid and
remove the tag-line rope, sling and
support beam. Connect the end of
the sling to the tag line.
5. Align the GMA such that
the location slot for the GMA sits
no more than 150mm from the
supporting structure below the
gridmesh.
How to set up the Gridmesh Anchor
4GRIDMESH ANCHOR
INSTALLATION:
The Gridmesh Anchor can
be installed in a matter
of minutes by a single
person, but more quickly
by two people to set
an anchor.
THE FOLLOWING
11 STEPS NEED
SIMPLY BE
FOLLOWED:

6. Lower the rope tag line ‘sling
rst’ through the GMA base and
the slot in the gridmesh. It may
be necessary to squeeze the eye
of the sling so that it ts through
the mesh.
7. Once lowered, the worker
below should connect a self
retracting lifeline, rope or
other device to be used for fall
protection. They should also
ensure a tag line is connected to
the SRL to ensure the device is
accessible once set in place.
8. Raise the sling with SRL
attached by hauling the
connected tag line in reverse
through the gridmesh, such that
the end of the sling protrudes
through the gridmesh and the
base of the GMA.
9. Slide the GMA beam end
through the sling and slide into
position, such that the beam can
rest into its operating position
within the GMA base. The SRL is
now set for use.
10. Once the installation is
completed, the worker below the
GMA will pull the tag line attached
to the SRL and attach the connector
to the harness. The worker is now
ready to commence work.
11. Disassemble by following the
steps listed above in reverse.
GRIDMESH ANCHOR 5
NOTE: ONE USER
The Gridmesh Anchor is
predominantly designed for one
person as a fall arrest device.
Third party testing has veried
the device as meeting the
performance requirements for a
15kN rating. Access to testing
information can be accessed from
the website. Additional laboratory
testing by Gridmesh Anchor
veries the device is capable of
a 22.2kN rating and third party
testing is presently underway to
provide this evidence.

6GRIDMESH ANCHOR
Length [m] 5 5.5 6 6.5 7 7.5 8 8.5
Universal Columns 200 UC 46 250 UC 72.9 250 UC 72.9 250 UC 72.9 250 UC 72.9 310 UC 118 310 UC 118 310 UC 118
Universal beams 310 UB 32 360 UB 44 360 UB 44 360 UB 44 410 UB 53 410 UB 53 460 UB 67 460 UB 67
Parallel Flange Channel 380 PFC 380 PFC 380 PFC ~ ~ ~ ~ ~
Un-equal angle ~~~~~~~~
Rectangular hollow section ~~~~~~~~
Square hollow section 250 x 6 ~ ~ ~ ~ ~ ~ ~
Length [m] 1 1.5 2 2.5 3 3.5 4 4.5
Universal Columns 100 UC 14 100 UC 14 150 UC 23 150 UC 23 150 UC 23 200 UC 46 200 UC 46 200 UC 46
Universal beams 150 UB 14 150 UB 14 150 UB 14 200 UB 18 200 UB 18 250 UB 25 250 UB 25 310 UB 32
Parallel Flange Channel 100 PFC 150 PFC 150 PFC 150 PFC 200 PFC 250 PFC 250 PFC 250 PFC
Un-equal angle 125x75 UA 6 150x90 UA 12 ~ ~ ~ ~ ~ ~
Rectangular hollow section 100 x 50 x 5 150 x 50 x 5 200 x 100 x 5 200 x 100 x 5 200 x 100 x 5 250 x 150 x 9 250 x 150 x 9 ~
Square hollow section 100 X 5 100 X 5 150 x 5 150 x 5 200 x 5 200 x 5 250 x 6 250 x 6
Length [m] 9 9.5 10 10.5 11 11.5 12
Universal Columns 310 UC 118 310 UC 118 310 UC 118 ~ ~ ~ ~
Universal beams 610 UB 101 610 UB 101 ~ ~ ~ ~ ~
Parallel Flange Channel ~~~~~~~
Un-equal angle ~~~~~~~
Rectangular hollow section ~~~~~~~
Square hollow section ~~~~~~~
Length [m] 5 5.5 6 6.5 7 7.5 8 8.5
Universal Columns 150 UC 23 150 UC 23 150 UC 23 150 UC 30 150 UC 30 150 UC 30 150 UC 37.2 200 UC 46.2
Universal beams 200 UB 22 200 UB 22 200 UB 22 200 UB 22 200 UB 22 250 UB 25.7 250 UB 25.7 310 UB 32
Parallel Flange Channel 150 PFC 200 PFC 200 PFC 200 PFC 250 PFC 250 PFC 250 PFC 250 PFC
Un-equal angle ~~~~~~~~
Rectangular hollow section 150 x 100 x 6 250 x 150 x 6 250 x 150 x 6 250 x 150 x 6 250 x 150 x 6 250 x 150 x 6 250 x 150 x 6 250 x 150 x 6
Square hollow section 150 x 5 150 x 5 200 x 5 200 x 5 200 x 5 200 x 5 250 X 6 250 X 6
Length [m] 1 1.5 2 2.5 3 3.5 4 4.5
Universal Columns 100 UC 14 100 UC 14 100 UC 14 100 UC 14 100 UC 14 100 UC 14 150 UC 23 150 UC 23
Universal beams 150 UB 14 150 UB 14 150 UB 14 150 UB 14 150 UB 14 150 UB 14 150 UB 14 150 UB 14
Parallel Flange Channel 100 PFC 100 PFC 100 PFC 100 PFC 150 PFC 150 PFC 150 PFC 150 PFC
Un-equal angle 125x75 UA 6 125x75 UA 6 125x75 UA 6 125x75 UA 6 125x75 UA 6 125x75 UA 8 125x75 UA 12 ~
Rectangular hollow section 100 x 50 x 6 100 x 50 x 6 100 x 50 x 6 100 x 50 x 6 150 x 100 x 6 150 x 100 x 6 150 x 100 x 6 150 x 100 x 6
Square hollow section 100 X 6 100 X 6 100 X 6 100 X 6 100 X 6 100 X 6 150 x 5 150 x 5
Length [m] 9 9.5 10 10.5 11 11.5 12
Universal Columns 200 UC 46.2 200 UC 46.2 200 UC 46.2 200 UC 46.2 200 UC 59.5 200 UC 59.5 200 UC 59.5
Universal beams 310 UB 32 310 UB 32 310 UB 32 310 UB 46 310 UB 46 310 UB 46 310 UB 46
Parallel Flange Channel 300PFC 300PFC 300PFC 300PFC 380PFC 380PFC 380PFC
Un-equal angle ~~~~~~~
Rectangular hollow section 250 x 150 x 6 250 x 150 x 6 250 x 150 x 6 250 x 150 x 6 250 x 150 x 6 250 x 150 x 6 250 x 150 x 6
Square hollow section 250 X 6 250 X 6 250 X 6 ~ ~ ~ ~
1. Maximum oor width = 1200 mm
2. The GMA sits, and is positioned so as to transfer load through 2 beams.
3. All materials are Grade 300 Mpa or better (AS3678 & AS1163)
4. Floor is fully loaded at 2.5 Kpa (typical design load) - Is equivalent to 255 kg per m^2
5. Floor mesh and handrails considered to be approx 50 kg per square metre.
6. A 1.25x factor has been applied to the loads, for error in estimations of operators.
7. It’s assumed the beams are full restrained, buckling has not been considered.
8. 15kN fall arrest anchorage load has been used to one side. This means 2 anchorages can be used on the same device on either side.
Minimum required beam size for simply supported structure
Minimum required beam size for simply cantilevered structure
Safe Load Calculator (Platform structure dimensions for steel beams)
The following tables can be used to ensure the steel dimensions of the supporting structure are
adequate for the GMA to be used.
Assumptions
Gridmesh Anchor in use

Q: Can I use the Gridmesh Anchor (GMA)
for rope access applications?
A: Yes it is possible to use the GMA for rope access
applications, though the code of practice for rope access
(e.g. ICOP for IRATA) will likely require you to use two
devices as separate anchorage points for one person. As
the strength of the GMA is high enough for limited-free-fall
or suspension type work, it has adequate strength.
Q: Can I use the Gridmesh Anchor (GMA)
for hauling loads?
A: The GMA is designed as a personal fall protection
device and is not designed for hauling large loads. As it
can be used for suspension work, technically light loads
(ie no greater than 100kg) can be hauled into place in
isolation. In other words, do not use the same Gridmesh
anchor as a personal fall arrest anchor as well as a materials
hauling system. A separate anchor device should be used
provided these load limits are not exceeded.
Q: Why does the Gridmesh Anchor sling test
certicate have a proof load rating of 11kg
when I thought it was rated to 22kN?
A: The GMA components have been tested to consistently
pass the 22kN performance rating, however it is common
practice to proof-load a sling to 50% of its rated strength.
For this reason every sling provided is supplied with a test
certicate demonstrating that the device has been proof-
loaded in this way, providing condence that the swaging
process has been successful.
Q: Will the company be launching a materials
handling version of the Gridmesh Anchor?
A: The company is working on releasing a dedicated
materials handling version of this product in the future. For
now, the existing models can only be used as a personal
fall arrest device, for suspension (rope access or bosun’s
chair work) and to haul very light loads (No more than
100kg) into position.
Q: Does the Gridmesh Anchor come in
different sizes?
A: At the present time there is only one size available. This
device enables an anchor to be set over grid mesh with the
oor sub-structure set at a maximum of 1200mm centres.
The device can also be used where the steel oor joists are
less distance apart (say 900mm). This can be achieved by
orienting the device in a diagonal position that still allows
the feet of the GMA to remain positioned directly over the
supporting sub-structure. Future models may be provided
in alternative sizes if sufcient demand exists.
GRIDMESH ANCHOR 7
Q: Can I access extra accessories than the ones
already provided in the kit?
A: Additional components such as taglines, wire slings,
bags can all be purchased separately as required. In the
event one component is unsuitable for future use (e.g,
fails inspection) or additional accessories are required for
your application, the replacement parts can simply be
purchased through your preferred distributor.
Q: Where can I order the Gridmesh Anchor?
A: The Gridmesh anchor company has chosen to sell its
products through a distribution network to enable the
products to be correctly supported in the eld and assist to
rectify issues in the unlikely event there are any problems
with the product on the ground. It also enables the product
to be pre-inspected prior to being entered into service.
Contact the company to determine if your preferred
distributor is an existing stockist, or we can arrange for the
establishment of your chosen safety provider to access the
product on your behalf
Q: How often do I need to inspect the
Gridmesh Anchor?
A: Like any fall protection product, the GMA needs
periodic inspection. The following schedule is
recommended for inspection:
• Before rst use - inspection by a competent person (also
record date of rst use in the log book);
• Before each use - by the user;
• 6 monthly by a competent person, with details also
recorded in a logbook.
The GMA wire sling and beam carry separate serial
numbers - we recommend you use the beam serial number
as the kit serial number if this is required to be recorded.
Detailed inspection requirements are located in the user
instruction manual which can be downloaded from the
website in the event it becomes lost/separated from the kit
that has initially been supplied.
Q: Does the Gridmesh Anchor have a lifespan?
A: The Gridmesh Anchor carries a limited lifetime warranty
(see the technical section on the website or the user
instruction manual for further details). Generally, the
product should last a minimum of 10 years, though items
such as slings and taglines can be replaced if they wear
down with use. The Gridmesh anchor can continued to be
used indenitely until such time as it fails an inspection.
If any component of the GMA is found to be damaged, it
should be tagged out of service immediately and not used.
Frequently asked questions
WARRANTY
The Gridmesh Anchor has a
limited lifetime warranty.
Please visit our website for the
full detailed warranty at:
www.gridmeshanchor.com
/technical/

:
gridmeshanchor.com
PO BOX 899, LANE COVE, NSW, 1595, AUSTRALIA.
EMAIL: [email protected]
0400 368 998