Fork-lifts shall not be used to support scaffold platforms unless the entire platform is attached to the fork and the fork-lift is not moved horizontally while the platform is occupied. Supported scaffold poles, legs, posts, frames, and uprights shall be plumb and braced to prevent swaying and displacement.
What must be used under the base of a scaffold?
Plumb/Level/Square
A horizontal diagonal brace is required on the bottom buck of scaffolding at a 45 degree angle.
What is supported scaffold?
Scaffolding » Supported Scaffolds
Supported scaffolds consist of one or more platforms supported by outrigger beams, brackets, poles, legs, uprights, posts, frames, or similar rigid support.
What are 5 requirements for scaffolding?
Five Steps to Safer Scaffolding
- Start with training.
- Follow the instructions.
- Consider the hazards.
- Use a tagging system.
- Inspect and re-inspect.
What is OSHA Standard for scaffold?
OSHA’s scaffolding standard defines a competent person as “one who is capable of identifying existing and predictable hazards in the surroundings or working conditions, which are unsanitary, hazardous to employ- ees, and who has authorization to take prompt correc- tive measures to eliminate them.”
What components must a supported scaffold be built on to ensure stability?
Supported scaffold poles, frames, uprights, etc. must be set on a base plate and mud sill or other firm foundation and must be plumb and braced to prevent swaying and displacement.
What are the three types of scaffolds OSHA?
Workers who use scaffolds can be divided into three groups:
- Suspended Scaffolds.
- Supported Scaffolds.
- Aerial Lifts.
What types of scaffolds are not allowed in construction?
(j) Prohibited Types of Scaffolds. Lean-to or jack scaffolds, shore scaffolds, nailed brackets, loose tile, loose brick, loose blocks, stilts, or other similar unstable objects shall not be used as working platforms, or for the support of such platforms.
What type of scaffolds is prohibited?
Shore
Shore and lean-to scaffolds are strictly prohibited. Employees are prohibited from working on scaffolds covered with snow, ice, or other slippery materials – except to remove these substances. Employers must provide access when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access.
How much should a scaffold support?
Rated Load Capacity
| Rated Load Capacity of Scaffold | Intended Load Should Be |
|---|---|
| Light-Duty “standard” | 25 pounds per square foot (applied uniformly) |
| Medium-Duty “brick masons” | 50 pounds per square foot (applied uniformly) |
| Heavy-Duty “stone-setters” | 75 pounds per square foot (applied uniformly) |
What are the hazards of scaffolding?
Hazards of scaffolding:
- Unsecured ladder slipping.
- Use of unsuitable, damage and faulty materials.
- Inadequately supported scaffold boards.
- Omission/removal of guard rails.
- Not proper tie-in/braced.
- Overloading of platform and board.
What are the main hazard of scaffolding?
Accident hazards
Injuries due to the collapse of scaffolds, caused for example by improper Page 2 erection or securing, use of faulty structural elements, accidental demolition or dislodging by moving vehicles, including trucks and forklifts, overloading or improper load distribution, etc.
What are the risks of scaffolding?
Common Scaffolding Risks
- Slips and Falls.
- Bad Planking.
- Falling Debris.
- Electrocution.
- Scaffold Preparation.
- Poor Personnel Training.
What is scaffolding in safety?
Scaffold : A temporary elevated platform (supported or underhung) and its Page 5 supporting components (including ties) used for supporting workmen, materials, or both. Types of scaffolds include: Base-Supported Scaffold : A scaffold with posts (standards) supported at their base (not under hung).
What are the three main protection methods against cave ins?
To prevent cave-ins:
- SLOPE or bench trench walls.
- SHORE trench walls with supports, or.
- SHIELD trench walls with trench boxes.
Is a harness required on scaffolding?
A ladder jack scaffold or a float scaffold requires a personal fall arrest system (aka: safety harness) while a single-point or two-point adjustable suspension scaffold requires both a safety harness and a guardrail system.
Which of the following scaffolds must be stabilized to prevent tipping during movement?
Outrigger beams
Outrigger beams shall be secured in place against movement, and shall be securely braced at the fulcrum point against tipping.
Who must inspect scaffolds scaffold components and personal fall protection equipment before each use?
competent person
scaffolds and scaffold components shall be inspected for visible defects by a competent person before each work shift, and after any occurrence which could affect a scaffold’s structural integrity.” You ask two questions regarding the competent person requirement.
What condition must scaffold planks be in?
1) has very specific requirements for the performance of scaffold planking. Primarily, it “must be able to support, without failure, its own weight and at least four times the intended load.” Secondly, when fully loaded, the plank cannot deflect more than 1⁄60 of the span.
How do you secure a ladder to scaffolding?
Securing ladders
It is highly recommended that ladders are secured to the scaffolding by square lashing, using suitable wire or rope, proprietary ladder clamps or cable ties of sufficient strength. Scaffold fittings may be used where the use of such fittings cannot damage metal ladders.
How do you fix scaffolding?
Steps
- Select a secure foundation on which to build and set your scaffold.
- Opt for casters.
- Assemble the scaffolding frame.
- Make sure the scaffold is stable.
- Place the planks.
- Secure access to the scaffold.
- Attach the guardrails.
- Inspect the scaffolding to ensure safety.