outrigger scaffold means a platform supported by, and fastened to, outriggers or thrustouts projecting beyond the wall or face of the building or structure, the inboard ends of which are secured inside the building or structure.
When should scaffold outriggers be used?
However, manufacturers of baker scaffolds often require that outriggers be installed whenever the baker scaffolds are stacked, or a second level or tier with an upper work platform is used, which means that outriggers would be required with a work platform at a height of about 6 feet or more.
At what height are outriggers required on scaffolding?
. . . a free standing scaffold shall be considered safe when the total height is equal to or less than four times the minimum or least base dimension.
OSHA.
| Model (using outriggers as described above) | Total height* at which restraint is required |
|---|---|
| 7-foot (7 feet wide) | over 28 feet |
What is a cantilever scaffold?
Cantilevered scaffolding is a form of scaffolding that is usually used to overcome obstacles that prevent a scaffolding tower being erected, or reduce the chances or damage occurring to the structure beneath the cantilevered area.
What are the 3 types of scaffolds?
Yet, despite the many types of scaffolding, there are only three main categories: suspended, support, and aerial.
What is the 3 to 1 rule in scaffolding?
The 3 to 1 rule. The total working height of a freestanding scaffolding tower should be three (3) times the distance of the narrowest side of the base (if this is a measurement of outriggers, they must be set symmetrically about the tower).
What is a scaffolding ladder?
A scaffolding ladder is a piece of equipment used to allow a worker to pass from one level of a scaffolding structure to another. This scaffolding ladder can be mounted to the outside of the structure or within it, depending on the needs of the builder and the type of scaffolding being used.
What is the maximum height of scaffolding?
The height of the toprail for scaffolds manufactured and placed in service before January 1, 2000 can be between 36 inches (0.9 meters) and 45 inches (1.2 meters).
Can a ladder be placed on a scaffold?
In most instances, scaffolds should be capable of supporting at least four times its maximum intended load. Don’t use boxes or ladders to increase your work height.Don’t use stilts unless the guardrails on the scaffold have been extended to a height that is equal to the height of the stilts.
Do scaffolders have to wear a harness?
Industry guidance requires scaffolders to wear and use a fall arrest harness when more than 4m above ground without a safe platform to stand on and edge protection in place.
What does it mean if a scaffold has a yellow tag?
CAUTION
Yellow – “CAUTION” tag(s), will replace all green “Safe Scaffold” tag(s) whenever the scaffold has been modified to meet work requirements, and as a result could present a hazard to the user. This tag indicates special requirements for safe use.
What is Kwikstage scaffolding?
George Roberts Kwikstage Scaffolding is a well established scaffolding system distributed throughout the world. Its adaptability and speed of erection enables it to be used for a wide range of applications ranging from house building to large industrial applications.
What is bracket scaffold?
bracket scaffold means a scaffold consisting of a work platform that is supported by metal brackets and attached to a structural wall and does not include a side bracket or end bracket; Sample 1.
What is a trestle scaffold?
Trestles are scaffolds that consist of tripod legs in order to support it.
What are the 2 basic types of scaffolds?
There are two basic types of scaffolds:
- Supported scaffolds, which consist of one or more platforms supported by rigid, load- bearing members, such as poles, legs, frames, outriggers, etc.
- Suspended scaffolds, which are one or more platforms suspended by ropes or other non-rigid, overhead support.
What are the four main types of scaffolds?
There are five main types of scaffolding used worldwide today. These are tube and coupler (fitting) components, prefabricated modular system scaffold components, H-frame / façade modular system scaffolds, timber scaffolds and bamboo scaffolds (particularly in China and India).
What are the 2 types of scaffolds?
Types of scaffolding
- Single scaffolding. Single scaffolding stands parallel to a wall of a structure by using vertical supports called standards.
- Double scaffolding.
- Cantilever scaffolding.
- Suspended scaffolding.
- Trestle scaffolding.
- Steel scaffolding.
- Patented scaffolding.
- Wooden and bamboo scaffolding.
Do scaffold planks need to be secured?
It merely noted that, “all planks shall be secured from movement or overlapped in accordance with §1926.451(a)(12).” Like the current standard, the 1975 standard did not address this issue (section 1926.451(a)(12), stated simply that “all planking of platforms shall be overlapped (minimum 12 inches), or secured from
How far can a scaffold be from a wall?
SCAFFOLDING INSPECTION CHECKLIST
Ensure that the platform is 14 inches or less away from the wall or 18 inches or less away if plastering/stuccoing. Make sure there are guardrails, including mid rails and toe boards on platforms where work is being done.
What should not be used to support scaffold?
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 is a jack scaffold?
A ladder jack scaffold is a system designed to perform activities, such as: installing building exteriors, trim, and finishes.Triangle-shaped brackets called “ladder jacks” are attached to portable ladders, which are used on each side of a ladder jack scaffold to form a means of support for a platform.
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