Structural Alterations Requiring Temporary Support
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Structural alterations or repairs that require temporary support to prevent collapse are high risk construction work needing a SWMS: underpinning, propping, beam replacement, and similar work where the structure is temporarily weakened.
Why this is high risk construction work
While a structure is being altered it may not be able to carry its own load, so a failure of the temporary support means collapse. Engineered support and sequence are safety-critical.
Because it is one of the 18 high risk construction work categories, a SWMS is legally required before the work starts (your state's WHS Regulations, provision 299; s 299 in NSW), not a nice-to-have.
The controls a SWMS should set out
In hierarchy of controls order, highest first:
- ✓ Engineered temporary support (props, needles, shoring) designed for the load
- ✓ A worked, recorded sequence so the structure is never left unsupported
- ✓ Monitoring for movement while the permanent structure is incomplete
- ✓ Exclusion zones under and around the supported area
- ✓ Sign-off before load is transferred back to the permanent structure
Trades that do this work
These trades commonly need a SWMS for this category. Each has a trade-specific SWMS:
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