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Scaffold assembly/dismantling at height — real accidents & risk assessment
Real Scaffold assembly/dismantling at height accident cases (AI-cleaned) plus example risk assessment, JSA and TBM. Free, no sign-up.
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Sample for: Scaffold assembly/dismantling at height
11
Hazards
7
Unit tasks
9
Related laws
Criminal 3
Full risk assessment
| Unit task | Hazard / Cause | Current controls | Risk (F×S) | Controls | After | Legal |
|---|---|---|---|---|---|---|
| Pre-work planning & material inspection | Musculoskeletal strain (lumbar sprain) during material handling Heavy scaffold tubes or frames manually carried by single worker in awkward posture Musculoskeletal Disorder | General manual-handling guidance | 8· Medium 4×2 |
| 4· Medium | 제57조 비계 등의 조립ㆍ해체 및 변경 Criminal |
| Pre-work planning & material inspection | Worker struck by falling scaffold component during unloading from vehicle Components not secured during transport; unloading without proper lifting equipment Struck-by / Impact | Manual unloading | 9· High 3×3 |
| 3· Low | 제57조 비계 등의 조립ㆍ해체 및 변경 Criminal |
| Ground preparation & base plate installation | Scaffold collapse due to inadequate base preparation Ground not levelled; base plates not installed; sill boards absent on soft ground Fall | Visual inspection of ground | 6· Medium 3×2 |
| 2· Low | 제141조 조립 등의 작업 시 조치사항 Criminal |
| Scaffold frame erection | Worker falls during frame erection at height No adequate fall protection during erection phase before guardrails are installed Falls from Height | Safety harness requirement | 6· Medium 3×2 |
| 2· Low | 제57조 비계 등의 조립ㆍ해체 및 변경 Criminal |
| Scaffold frame erection | Tools or components dropped from height strike workers below Tools not tethered; no exclusion zone established below erection area Falling Objects | Hard hat requirement | 10· High 2×5 |
| 5· Medium | 제57조 비계 등의 조립ㆍ해체 및 변경 Criminal |
| Guardrail & toe-board installation | Worker falls through unguarded opening before guardrail is installed Guardrail installation lags behind deck installation Falls from Height | Harness use | 8· Medium 4×2 |
| 4· Medium | 제57조 비계 등의 조립ㆍ해체 및 변경 Criminal |
| Scaffold deck (planking) installation | Worker falls through gap between planks or over unguarded edge Plank spacing too wide; planks not secured against displacement Falls from Height | Visual spacing check | 8· Medium 2×4 |
| 3· Low | 제57조 비계 등의 조립ㆍ해체 및 변경 Criminal |
| Scaffold deck (planking) installation | Scaffold collapses due to overloading of deck Construction materials or debris stored on scaffold exceeding rated load Collapse / Cave-in | Load limit placard | 9· High 3×3 |
| 2· Low | 제57조 비계 등의 조립ㆍ해체 및 변경 Criminal |
| Scaffold dismantling | Worker falls during dismantling — unguarded leading edge Guardrails removed before workers move to lower level Falls from Height | Harness requirement | 6· Medium 3×2 |
| 1· Low | 제57조 비계 등의 조립ㆍ해체 및 변경 Criminal |
| Scaffold dismantling | Scaffold components dropped or thrown down from height Components hand-thrown to ground rather than lowered with rope or crane Falling Objects | Verbal warning to below | 6· Medium 3×2 |
| 2· Low | 제57조 비계 등의 조립ㆍ해체 및 변경 Criminal |
| Post-work cleanup & material storage | Worker struck by uncontrolled rolling scaffold tube Tubes stacked unsecured on uneven ground; no wheel stops Struck-by / Impact | Stacking guidance | 6· Medium 3×2 |
| 1· Low | 제304조 누전차단기에 의한 감전방지 Criminal |
Legal compliance (OSH rules)
Art. 55Scaffold Safety Requirements
CriminalMust-check
Art. 56Scaffold Inspection before Use
CriminalMust-check
Art. 57Fall Prevention Measures at Height
CriminalMust-check
Art. 93PPE Provision
Must-check
Art. 44Competent Person Requirement for Scaffold Work
Must-check
Art. 45Work-at-Height Risk Assessment
Must-check
Art. 60Toe-board Requirements
Art. 61Netting and Debris Containment
Art. 62Emergency Rescue Procedures at Height
Grounding real accidents
Worker fell 4 m through an unguarded scaffold opening left when a plank was removed for material hoist access.
⚠ Unguarded opening / plank gap
Scaffold collapsed when a forklift struck a base leg; multiple workers fell along with the structure.
⚠ Vehicle impact on scaffold base
Worker struck by scaffold tube dropped from 6 m during dismantling; suffered fractured skull despite hard hat.
⚠ Falling scaffold component
Scaffold overloaded with bricks and mortar collapsed; two workers fell onto concrete below.
⚠ Scaffold overloading
Worker's harness anchorage point failed because it was clipped to the scaffold guardrail rather than a lifeline.
⚠ Inadequate harness anchorage
Scaffold erected on soft soil subsided overnight; morning shift found structure tilted 15°.
⚠ Inadequate base / ground settlement