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Engineering Requirements for Temporary Structures

1) EVENT OVERVIEW

The bp Adelaide Grand Final motor race (the Event), staged by the South Australian Motor Sport Board (SAMSB), is South Australia’s largest annual ticketed sporting event that provides a vibrant mix of
attractions appealing to a diverse audience.

 

A key component of the safe and successful running of the Event is the supply, construction, certification, and eventual dismantle and removal from site of temporary structures, which thousands of patrons utilise and enjoy over the Event.

 

2) GENERAL CONDITIONS

The purpose of this document is to communicate to the ‘Occupant’ the requirements for all temporary structures erected on site for the Event. The Occupant is any person (or company) who erects or has effective control of a structure at the Adelaide Grand Final site. All temporary structures erected on site must comply with the requirements of the ABCB Temporary Structures 2015 Standard, The Building Code of Australia and all other relevant Australian Standards.

 

SAMSB has engaged an Engineering Project Manager, iEDM, to manage the site on its behalf. The Occupant must provide access to iEDM personnel, or any person delegated by iEDM, to inspect any temporary structure as required.

 

The Occupant shall provide iEDM and/or SAMSB with engineering documentation (as described in this document) to demonstrate that its temporary structure is compliant with the ABCB Temporary Structures 2015 Standard, The National Code of Construction and all relevant Australian Standards. The Occupant remains responsible for ensuring that their temporary structure complies with these standards and is structurally stable and safe for the entire time the structure is erect. At no point in time will SAMSB or iEDM, or any third party engaged by SAMSB or iEDM, take responsibility for the structural stability of the structure installed or controlled by the Occupant.

 

3) GENERAL REQUIREMENTS FOR ALL TEMPORARY STRUCTURES

 

The following are general requirements the Occupant must adhere to:

 

  • Placement and positioning of all temporary structures is at the absolute discretion of
    iEDM/SAMSB;
  • The Occupant is responsible for ensuring adequate fire safety equipment is charged and
    maintained to AS1851.1. If required, this equipment may need to be inspected by iEDM
    Management or Emergency Services personnel;
  • Ballast used must be in the form of solid weights or pegs (if approved) and not in the
    form of water-filled drums or barriers. Water filled drums or barriers used as ballast will
    be rejected by iEDM;
  • Ground spiking is not permitted, unless prior approval is granted by iEDM;
    Structures are not to be tied down using ropes and knots. Rated straps (with an
    adequate capacity) must be used for tying structures down; and
  • All equipment used on site must be in good condition and not suffering from excessive
    wear and tear.

 

 

4) WIND MANAGEMENT

 

Wind is one of the major risks to temporary structures at the event. The Occupant must be aware of the capacity of their structure in regard to wind; and have their own wind management plan ready
for action at any time the structure is erect.

 

The difference between wind speed and wind gusts needs to be understood. Form the bom.gov.au
website:

  • Wind Speed (km/h): Wind observations averaged over 10 minutes.
  • Wind Gust (km/h): Wind gust is measured over 3 seconds.
  • Wind forecasts from BOM are given in terms of wind speed, however, from past
    experience, we recognise that wind gusts can be anywhere from 50% to 100% than
    wind speed. Structures must be able to withstand the forces of wind gusts.

 

The Occupant must:

 

  • Be acutely aware of the evacuation, de-rig and design wind speeds of their structure;
  • Vigilantly review forecast windspeeds by BOM;
  • Vigilantly observe site wind conditions (gusts) and be ready at short notice to fully
    enclose / deflate / dismantle the structure should the structure be unsafe for occupation
    or the nearby surroundings; and
  • Notify iEDM should wind conditions (either forecast or actual) become stronger than the
    design capacity of the structure.

 

 

For forecast wind speeds for the Adelaide Grand Final event, the Occupant is to use the ‘Adelaide’ forecast by the Bureau of Metrology (BOM). The forecast can be found via the bom.gov.au website. The Occupant must make provisions based on the upper bound of the wind forecast.

 

For live wind observations the occupant is to use the BOM observations from the ‘West Terrace’ site. The occupant is to us the wind gust as the governing wind speed for their response. Live
observations can be found via the bom.gov.au website. Weather warnings including the chance of a thunderstorm must be treated with the highest regard. Any cost, whether rectification to a structure, complete removal of a structural, deflation or dismantle of a structure, will be solely at the cost of the Occupant, regardless of who undertakes this work and
when it occurs.

 

5) WORK, HEALTH, SAFETY AND ENVIRONMENT

 

As the Engineering Project Manager, iEDM is also the site’s Principal Contractor (PC), responsible for the work health and safety management on site. The site works consist of both “Construction Works” and “Event Works”.

 

Construction Works: includes erection and dismantling of structures and marquees, installing temporary flooring, scaffolding, electrical work, working above 2m and use of forklifts or any other
mobile plant. Workers conducting “Construction Works” must complete an iEDM Construction Induction and hold a Construction Industry General Induction (White) Card.

 

Event Works: includes erection of up to 6mx3m “pop up” tent, corflute signage, merchandise or catering fit out, manual loading at ground level. Workers conducting “Event Works” must complete
a site-specific Short Term Works Induction.

 

The Occupant should contact the Safety Manager if it has any questions about the types of works it is undertaking. The Occupant must contact the Safety Manager to be inducted. The inductions are available in an online format or onsite by request to the Safety Manager. All workers must obey the site rules that are communicated in the induction and wear appropriate personal protective equipment when performing their site works.

NOTE: The requirement for Construction Industry General Induction Cards is a legislative requirement and is different from state to state. It is the Occupant’s responsibility to ensure any staff
member requiring such accreditation has obtained it.

If you have any questions relating to Work, Health, Safety and Environment please contact:

Alistair Hardie
Adelaide Grand Final – Safety Manager
alistairh@iedm.com.au
0418 340 959

 

6) STRUCTURAL REQUIREMENTS

 

The engineering documentation which must be submitted to iEDM/SAMSB depends on the size and type of the temporary structure to be installed. Four different categories of temporary structure have been identified. The Occupant is to identify the category which best describes their temporary structure in order to determine the engineering documentation to be provided. If the Occupant is in any doubt regarding which type of structure is to be installed, please contact iEDM. The four categories of structures and the requirements for each category type are summarised in Table 1.

 

As a minimum the Occupant shall satisfy the requirements outlined in Table 1 (including notes) within the timeframes specified. The Occupant must allow iEDM a minimum of 14 days to review pre-mobilisation documentation prior to mobilisation. Mobilisation on site will not be permitted until iEDM is satisfied that all required pre-mobilisation documentation has been provided to a
satisfactory standard.

 

For any structures requiring an engineering inspection certificate (Structure Types C and D in Table 1), the Occupant shall give iEDM reasonable notice of the time when the engineering inspection is
scheduled to occur. The Occupant shall also give iEDM the opportunity to attend the inspection at their discretion.

If you have any questions relating to Engineering requirements or certification, please contact:
Russell Rozario
Adelaide Grand Final – Project Engineer
russellr@iedm.com.au
0414 274 214
Page 5 of 13

Structure
Reference		TYPE A TYPE B TYPE C (Note 1)TYPE D (Note 1)
EXAMPLES
  • Structures with a floor plan up to 9 sqm. (i.e. pop up tents, small inflatable structures, small stages)
  • Proprietary Structures (ie Modified Trucks, Modified Containers)
  • Umbrellas
  • Structures with Floor plan up to 36 sqm (i.e. (Marquees, Tents, shade structures)
  • Structures with Floor plan between 36 and 500 sqm (i.e.
  • Marquees, Tents, Shade Structures, Grandstands, Corporate Platforms)
  • Temporary Fencing
  • All Superscreens
  • Large Inflatable Structures
  • Structures with Floor plan 500 sqm or greater (i.e. Marquees,
  • Tents, Shade Structures, Grandstands, Corporate Platforms)
Fourteen (14) days prior to site mobilisation
PRE-MOBILISATION
REQUIREMENTS		Details and type of
structure to be used
(name, size, type, and if
available
photos/drawings)		Details and type of
structure to be used
(name, size, type, and if
available
photos/drawings)		Details and type of
structure to be used
(name, size, type, and if
available
photos/drawings)		Details and type of
structure to be used
(name, size, type, and if
available
photos/drawings)
Work Health and
Safety Documentation
as required by the
Event’s Work Health
and Safety
Documentation		Work Health and Safety
Documentation as
required by the Event’s
Work Health and Safety
Documentation		Work Health and Safety
Documentation as
required by the Event’s
Work Health and Safety
Documentation		Work Health and Safety
Documentation as
required by the Event’s
Work Health and Safety
Documentation
Provide site specific
engineering drawings
for each structure		Provide site specific
engineering drawings for
each structure
Provide site specific
engineering calculations
for each structure		Provide site specific
engineering calculations
for each structure
Provide an engineering
design certificate for
each structure, issued
by an independent
CPEng Note 2		Provide an engineering
design certificate for each
structure, issued by an
independent
CPEng Note 2
Prior to Event: Prior to 14th of November 2024
PRE-EVENT
REQUIREMENTS		Provide the
manufacturer’s
engineering
documentation Note 3

 

OR

 

The Structure must
comply with the ‘hire
and rental industry
association –
Temporary
Structure/Marquee
Weighing Guide.
Guides to achieve a
class 1 or class 2 wind
rating are provided for
your convenience
below.
Note 4

 

OR

 

Provide an engineering
inspection certificate
for each structure,
issued by an
independent
CPEng. Note 5

The Structure must
comply with the ‘hire
and rental industry
association –
Temporary
Structure/Marquee
Weighing Guide. Guides
to achieve a class 1 or
class 2 wind rating are
provided for your
convenience below.
Note 4		Provide an engineering
inspection certificate for
each structure, issued
by an independent
Engineer.
Note 5
Provide sufficient notice
to iEDM of the time of
inspection, such that
iEDM can attend the
inspection if they
choose.		Provide an engineering
inspection certificate for
each structure, issued by
an independent
Engineer.
Note 5
Provide sufficient notice
to iEDM of the time of
inspection, such that
iEDM can attend the
inspection if they choose.
OR
Provide an engineering
inspection certificate for
each structure, issued
by an independent
CPEng. Note 5		Provide an Occupancy
Permit (Building
Compliance Certification)
from a Qualified Building
Surveyor.

Note 1: For categories labelled with this note, the Occupant shall engage an independent
structural engineer, who is a certified practicing engineer (CPEng) to be responsible for the
structural design and the installation certification. Note that separate engineers may be used
for design and installation certification.

Additionally, if applicable, safe for trade occupation handover certificates for the structure may be required prior to entry by other trades. iEDM will provide direction when safe for trade
occupation certificates are required.

 

Note 2: A template of the engineering design certificate is attached to this document and must be completed in full. If the Occupant requests any amended details on the certificate, then these changes must be discussed and agreed with iEDM prior to submission. If insufficient room is available on the template, please provide additional information as an attachment to the
template.

 

Note 3: The manufacturer’s engineering documentation must show how the structure is to be assembled, any required hold down ballast and the maximum design wind speed (in 3 second wind gust m/s) and if it complies with the relevant Australian Standards. If the documentation does not satisfy the required relevant Australian Standards, then another of the requirements
listed within this same cell of the table must be satisfied.

 

Note 4: It is the requirement for the owner of any marquee to provide sufficient tiedown on each leg, so that every structure achieves a minimum wind rating of 35km/h (Class 1). For standard marquee sizes 3mx3m, single or multiple bays, see the Table 2. If higher wind speeds up to 56km/h are predicted for the event dates and the occupant wishes for their structure to remain upright and habitable, a Class 2 classification is applicable – refer to Table 3 for tie down brequirements. Where a higher wind rating is required or the size of the marquee differs, see the HRIA Marquee Weighting Guide for tie down requirements. The guide is available at https://hria.com.au/wp-content/uploads/sites/3/2023/11/15.-HRIA-weighting-guide-September2016.pdf

Table 2: Minimum Weighting Required to Achieve 35km/h Wind Rating (Mandatory)
Marquee typeAll walls openOne or more walls closedAll Walls Closed
Legs pinned
at base		No pins at
base		Legs pinned
at base		No pins at
base		Legs pinned
at base		No pins at
base
3×3 single bay10kg10kg20kg40kg10kg35kg
3×3 multiple bays10kg10kg35kg65kg20kg50kg

 

 

Table 3: Minimum Weighting Required to Achieve 56km/h Wind Rating (Mandatory)
Marquee typeAll walls openOne or more walls closedAll Walls Closed
Legs pinned
at base		No pins at
base		Legs pinned
at base		No pins at
base		Legs pinned
at base		No pins at
base
3×3 single bay15kg15kg45kg100kg25kg80kg
3×3 multiple bays25kg25kg90kg160kg50kg120kg

Note 5: A template of the engineering inspection certificate is attached to this document and must be completed in full. If the Occupant requests any amended details on the certificate, then these changes must be discussed and agreed with iEDM prior to submission. If insufficient room is available on the template, please provide additional information as an attachment to the template. Note that if an inspection certificate is to be provided by an independent Engineer iEDM shall be given sufficient notice of the time of inspection, such that iEDM can attend the inspection if they choose.

General Note: Where uplift is restrained via concrete ballast placed on column base plate, the ballast must be in positive contact with base plate and restrain movement of the column. Where this does not occur, appropriately rated ratchet straps will be connected from the ballast to the column or part of the structure nominated by the engineer.

 

 

7) NON-COMPLIANCE

 

Any Occupant found with a non-compliant temporary structure, will be directed by iEDM/SAMSB to rectify the defect, or to dismantle the structure and remove from the Event precinct. Please see Table
3 below for a summary of the Structure Classification System used on site by iEDM and the Structural Engineering Superintendent. iEDM/SAMSB has the right to reject and remove from site any temporary structure for failing to meet the requirements detailed herein. At the discretion of iEDM, any structure which is non-compliant with this policy may be placed on the Vulnerable Structures Register, and at the discretion of iEDM, a direction may be given to the Occupant to immediately deflate or dismantle the structure at any point in time.

 

Any cost, whether rectification to a structure, complete removal of a structure, deflation or dismantle of a structure, will be solely at the cost of the Occupant, regardless of who undertakes this work.

Table 4: Structure Classification System
 Classification Max Wind RatingComment
  Non-ConformingComply with iEDM and Site Engineer’s instructions to lift structure classification to either Class 1 or Class 2,
or remove structure from site.
Class 1 <35kmph
Class 2<56kmph
Class 3As per Engineering
Design Certificate		Typically a SAMSB Government Contract holder, or as
per your approved Engineering Design Certificate.

 

8) MONITORING STRUCTURAL STABILITY

 

The Occupant is to be aware of the design wind speed of their structure(s). The Occupant must:

  • maintain constant supervision of the structure during the event;
  • vigilantly review forecast windspeeds by BOM; and
  • observe site wind conditions in order to be ready at short notice to deflate or dismantle the
  • structure should the structure be unsafe for occupation.

Any cost, whether rectification to a structure, complete removal of a structural, deflation or dismantle of a structure, will be solely at the cost of the Occupant, regardless of who undertakes this work.

 

9) SERVICES REQUIREMENTS

 

Services compliance documentation must be submitted to iEDM for any electrical, hydraulic, mechanical works undertaken for the event in the form of Certificates of Compliance (CoC).
Compliance documentation must be provided prior to the services being commissioned and operational for the event.

Services compliance documentation must also be submitted to relevant regulators to conform with

legislative requirements as applicable.
If you have any questions relating to Services Engineering requirements or certification, please
contact:
JJ Zylberberg
Technical Services Manager
jjz@iedm.com.au
0433 767 117