Steel Frame Erection — Safe Work Method Statement
Safe Work Method Statement for the erection of structural steel frames including columns, beams, and roof members for commercial and industrial buildings, addressing crane operations, working at height, and bolted connections.
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Structural steel frame erection is High Risk Construction Work under the model WHS Regulations because it involves both the use of a crane and work at height exceeding two metres — typically both simultaneously. A SWMS is mandatory before steel erection commences, and must address crane operations, rigging, bolted connections, and fall prevention as integrated elements of the same task. The crane operator must hold the appropriate High Risk Work Licence (C2, C6, or C1), and workers performing rigging and load directing must hold a Dogman (DG) or Rigging (RB minimum) HRWL.
The structural collapse risk during steel erection is highest in the partially-erected state, when columns are standing but not yet braced by the full frame geometry. The structural engineer's erection methodology must specify the temporary bracing requirements at each stage — diagonal bracing cables or props may be required before the full floor bay can be completed. A minimum number of bolts specified by the engineer must be installed before the crane hook is released from each member, and full-torque tightening to AS 4100 requirements must be completed before the next lift.
Falls from height are the most frequent severe injury mechanism in steel erection. Workers connecting beams at height are exposed to unprotected edges with no practical way to install guardrails before the deck is complete. The industry-standard approach uses safety nets below the work level, complemented by personal fall-arrest equipment anchored to the steel structure. All anchor points must be certified to the rated load, and the fall arrest system must be configured to minimise swing-fall and fall distance. Ground-level work — bolt-out, landing steel, and directing crane movements — must be conducted well clear of the crane and suspended load.
Customise this template with the structural steel schedule, the engineer's erection methodology and temporary bracing requirements, the crane lift plan, the bolting specification and inspection checklist, and the fall protection system design.
Personal Protective Equipment
High Risk Construction Work Types
- •Work involving risk of a person falling more than 2 metres
- •Work involving the use of a crane, hoist or other powered lifting device
- •Work near energised overhead power lines
Risk Assessment
1.Column Erection and Plumbing
| Hazard / Risk | Initial Risk | Control Measures | Residual Risk | Responsibility |
|---|---|---|---|---|
| Column topple before permanent bracing is in place | Catastrophic | Columns must be braced with temporary guys or kickers immediately after placement on base plates, before the crane releases. Temporary bracing must be designed by an engineer to withstand the self-weight of the column plus design wind loads. A minimum of two bracing directions per column must be provided. Do not erect adjacent columns until the first column is braced and plumbed vertical (within L/1000). The crane must hold load until the rigger confirms bracing is secured. | Low | Rigger / Steel Erection Supervisor |
2.Beam and Rafter Installation
| Hazard / Risk | Initial Risk | Control Measures | Residual Risk | Responsibility |
|---|---|---|---|---|
| Workers falling from column tops or beam ends during installation | Catastrophic | Deploy fixed scaffolding, perimeter safety netting, or an MEWP for all steel connection work above 3 m. Where workers must temporarily stand on steel members, they must use a full-body harness connected to a pre-installed horizontal lifeline between column anchor points at minimum every 6 m. No worker may sit, lean, or walk on an unbraced single beam without an anchor point. Toolbox talk to cover fall rescue plan before work at height commences each day. | Moderate | Steel Erection Supervisor / All Workers |
| Crane load striking ironworkers below on structure | Catastrophic | No ironworker may work directly below a suspended load at any time. The crane operator and dogman must maintain continuous radio communication. Ironworkers must be in a confirmed safe position before any lift commences in their area. If an ironworker loses their safe position during a lift, the crane holds position on radio instruction until the ironworker is clear and confirmed safe. | Low | Crane Operator / Dogman / Ironworkers |
3.Bolted Connection Work
| Hazard / Risk | Initial Risk | Control Measures | Residual Risk | Responsibility |
|---|---|---|---|---|
| Hand and finger injuries from high-torque impact wrenches | Moderate | Use impact wrenches with dead-man trigger (requires continuous hand pressure to operate). Workers wear heavy-duty work gloves during all bolt installation work. Keep fingers and hands clear of bolt holes during initial alignment — use taper punches to align holes, not fingers. Do not operate impact wrench in confined or awkward positions where reaction force cannot be controlled safely. | Low | Ironworker / Site Supervisor |
| Dropped tools or bolts striking workers below | High | All tools used at height must be tethered to the worker's belt using a rated tool lanyard. All bolts, nuts, and washers must be transported up in a latched tool bag — never loose in pockets. Establish a ground-level drop exclusion zone beneath active bolt-up areas using bunting and 'OVERHEAD WORK' signs. Workers below must wear hard hats rated to class E at all times in the exclusion zone. | Low | Ironworker / Site Supervisor |
4.Roof Purlins and Bracing Installation
| Hazard / Risk | Initial Risk | Control Measures | Residual Risk | Responsibility |
|---|---|---|---|---|
| Falls through fragile or incomplete roof structure | Catastrophic | Install catch platforms, perimeter edge protection, or safety netting beneath the roof structure before workers access it. Workers must not walk on purlins — provide temporary walkway boards spanning across multiple purlins rated to the maximum worker and load weight. Clearly mark all incomplete or unsupported roof areas with 'FRAGILE — DO NOT WALK' tape. The site supervisor must inspect and sign off the fall protection system before any roofing work begins each day. | Moderate | Steel Erection Supervisor / All Workers |
5.Final Survey, Plumb, and Hand-Over
| Hazard / Risk | Initial Risk | Control Measures | Residual Risk | Responsibility |
|---|---|---|---|---|
| Structural non-compliance due to out-of-tolerance frame geometry | High | Conduct a full survey of column plumb, beam levels, and bay dimensions by a licensed surveyor upon completion of frame erection. Compare all readings against tolerances specified in AS 4100 (Steel Structures). Document non-conformances on a register and obtain written direction from the structural engineer for any item outside tolerance. Do not proceed with cladding, roofing, or permanent floor installations until the survey is accepted in writing by the structural engineer. | Low | Licensed Surveyor / Structural Engineer / Site Manager |
Relevant Codes of Practice
Worker Acknowledgement
By signing below, I confirm that I have read, understood and agree to comply with this Safe Work Method Statement.