CSCS Scaffolding Advanced flashcards
CSCS Scaffolding Advanced · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Inspection interval (UK)
- Scaffolds must be inspected before first use, at intervals not exceeding 7 days, and after any event likely to affect stability, per Work at Height Regulations 2005.
- EN 12811-1
- European standard specifying performance requirements and general design for temporary works scaffolds, including load classes and structural design rules.
- OSHA scaffold load factor
- OSHA 29 CFR 1926 Subpart L requires scaffolds to support at least 4 times the maximum intended load, and suspension ropes 6 times.
- Competent person
- An individual with the training, experience, and knowledge to design, erect, inspect, or dismantle scaffolds safely, as required by regulations.
- Handover certificate
- A document signed by a competent person confirming the scaffold is complete, inspected, and safe for its intended load class and use.
- Service load class 3
- Per EN 12811, Class 3 corresponds to a uniformly distributed load of 2.0 kN/m², used for general purpose scaffolding.
- Wind load formula
- Basic wind pressure q = 0.613 × v² (N/m²), where v is wind speed in m/s; shape and exposure coefficients are then applied.
- Leg load calculation
- Leg load is the sum of loads from the tributary area (load per m² × area) plus self-weight of the scaffold components supported by that leg.
- Bracing requirement
- Diagonal bracing provides lateral stability; a common rule is at least one bay of diagonal bracing per 5 bays longitudinally and at both ends.
- Sole board purpose
- Sole boards spread the leg load over a larger area to reduce bearing pressure on the ground and prevent settlement or punching.
- Design load combination
- Scaffold design must consider dead load, imposed load, and wind load acting simultaneously, with appropriate partial factors for strength and stability.
- Erection sequence
- Standard sequence: base preparation, base plates and sole boards, standards, ledgers, transoms, bracing, decking, guardrails, toe boards, then ties.
- Tie pattern
- Ties connect scaffold to structure; typical pattern is two ties per lift per bay, with pull-out resistance tested to 1.5 times design load.
- Mobile tower rules
- Mobile access towers must be erected by trained personnel, with outriggers if required, and never moved with personnel or materials on the platform.
- Dismantling principle
- Dismantling is the reverse of erection; ties must not be removed until the lift below is fully struck and stability is assured.
- System scaffold
- A modular scaffold with fixed node points and standardized components, offering faster erection but less flexibility than tube-and-fitting.
- Cantilever scaffold design
- Cantilever scaffolds must be designed for eccentric loads and additional moments, with connection capacities checked for the imposed forces.
- Scaffold tag colours
- Green tag indicates safe for use; red tag indicates do not use. Tags show inspector name, date, and next inspection date.
- Inspection coverage
- Inspection must cover foundations, standards, ledgers, transoms, bracing, ties, decking, guardrails, toe boards, access, and signage.
- Post-alteration inspection
- After any alteration, repair, or adverse weather, a new inspection and handover are required before the scaffold is used again.
- Inspection record content
- Records should include date, time, location, findings, actions taken, and signature of the inspector, and be kept on site.
- Defect action
- Defects found during inspection must be rectified and re-inspected; if immediate danger, evacuate and tag the scaffold red.
- Risk assessment purpose
- To identify hazards (falls, falling objects, collapse, electrical, weather) and specify control measures before work begins.
- Method statement content
- Describes the sequence of work, plant and equipment, personnel responsibilities, and emergency procedures for the scaffold operation.
- Permit-to-work
- A formal system required for scaffolding near live electrical lines or in confined spaces, ensuring specific controls are in place.
- Emergency rescue plan
- A plan for rescuing a person fallen or suspended in fall arrest equipment, required before work starts.
- Supervisor competence
- A competent supervisor must be appointed to verify qualifications, enforce method statements, and ensure safe scaffold operations.
- Toolbox talk
- A short briefing to communicate method, hazards, and controls to the workforce before starting work or when conditions change.
- Load limit posting
- Supervisors must ensure load limits are posted on the scaffold and observed by all users to prevent overloading.
- Near-miss reporting
- Near misses should be recorded and reviewed to prevent future incidents, as part of the site incident reporting procedure.
- Guardrail heights (UK)
- Guardrails at 950 mm and 470 mm above the platform, with toe boards at least 150 mm high, per UK standards.
- Fall arrest anchor rating
- Anchor points for personal fall arrest systems must be rated at least 15 kN for one person, or 22 kN for two persons.