24 Questions
What is the primary function of the temporary intermediate short-lift deck?
To allow scaffolders to access the next 1m level with guardrails in place
What is the maximum conventional lift height for which the short-lift system is suitable?
2.1m
What is the purpose of the goal post frame in the Advanced Guardrail System (AGS)?
To form a goal post frame with upright tubes and a single tube as a temporary guardrail
What is the correct positioning of the second right-angle coupler in the Advanced Guardrail System (AGS)?
1100mm down from the top coupler's center, on the opposite side of the tube
What is the primary purpose of the collective fall protection system?
To prevent falls from heights
What is the function of the temporary edge protection in the short-lift system?
To allow scaffolders to access the next 1m level with guardrails in place
What is the purpose of the guardrail system in the Advanced Guardrail System (AGS)?
To prevent falls from heights
What is the advantage of using system decking in the short-lift system?
It eliminates the need for installing temporary intermediate transoms
At what distance from an unprotected edge should the right-angle couplers be secured?
1m
What is the primary purpose of the Advanced Guardrail System (AGS)?
To provide collective fall protection
What is the purpose of the additional guardrail in the base lift?
To protect the vertical tube
In what direction should the tube be pushed in STEP 3?
Horizontally past the next standard
How can scaffolders access the platform and erect the next lift with collective protection?
By securing couplers to the advanced guardrail
What is the maximum distance the tube should be pushed out in STEP 3?
One bay
What should be done before scaffolders can leave the established safe zone?
The temporary guardrail must be secured
What is the recommended method to release the guardrail to the next level?
By pulling back the outside board to access the coupler from above
What is the purpose of swivel couplers in parallel?
To fix the advanced guardrail for stop-end guardrails
What is the purpose of the temporary guardrail in the Advanced Guardrail System?
To form a temporary guardrail from within a scaffolder's safe zone
What is crucial in ensuring the advanced guardrail is raised before installing transoms or other protrusions?
The build sequence
What should be taken at stop-ends or corner returns?
Additional precautions
What should be done if the facade bracing is obstructing the advanced guardrail?
Fix the brace after raising the guardrail
What is the final step in the process of installing a tube and fitting an advanced guardrail horizontally?
Release and slide the temporary guardrail to the next bay
What is a characteristic of the advanced guardrail system?
It is versatile and can be used for dismantling and alterations
What is the primary purpose of the collective fall protection system?
To prevent scaffolders from falling
Study Notes
Collective Fall Protection
- An additional guardrail is needed for the base lift only to protect the vertical tube.
- Couplers can be secured to secure the advanced guardrail, allowing scaffolders to access the platform and erect the next lift with collective protection.
- The advanced guardrail can be raised to the next level once the permanent guardrails have been installed.
- Swivel couplers in parallel can be used to fix the advanced guardrail for stop-end guardrails, preventing scaffolders from encroaching within 1m of the leading edge.
Advanced Guardrail System (AGS)
- The AGS is a tube and fitting frame type that functions similarly to proprietary systems but is made using standard scaffolding components.
- The AGS is designed for independent tied scaffolding, forming a temporary guardrail from within a scaffolder's safe zone.
- The AGS provides protection to both inside and outside faces of the scaffold, fixing to the standards.
Erecting AGS
- STEP 1: Determine the scaffold elevation and bay sizes by selecting tubes that fit the length and size of the bay.
- STEP 2: Create a goal post frame by placing tubes on the ground and attaching a guardrail to the upright tubes using right-angle couplers (EN74).
- STEP 3: Attach a second right-angle coupler to each upright tube, 1100mm down from the top coupler's center, ensuring they are 'up-side-down' and on the opposite side of the tube.
- STEP 4: Two scaffolders are needed to lift the frame and secure it to the ledger.
- STEP 5: Couplers can be secured to secure the advanced guardrail, allowing scaffolders to access the platform and erect the next lift with collective protection.
- STEP 6: The advanced guardrail can be raised to the next level once the permanent guardrails have been installed.
Tube and Fitting Horizontal Type AGS
- STEP 1: Secure two right-angle couplers to the existing guardrail standards, ensuring they clip on before encroaching within 1m of an unprotected edge.
- STEP 2: Place a temporary guardrail using another tube loosely into two fittings to ensure horizontal tube sliding.
- STEP 3: Push the tube out horizontally past the next standard (one bay max) and tighten the end coupler.
- STEP 4: Now walk out to fix the temporary guardrail to the standard, clipping on until the guardrail is secured and if encroaching within 1m of the end.
- STEP 5: The working platform guardrail(s) can now be completed and next lift constructed with the scaffolders' safe zone in place.
- STEP 6: The temporary guardrail can then be released and slid along horizontally to the next bay.
This quiz covers the steps and requirements for collective fall protection during scaffold erection, including the use of guardrails and couplers.
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