How do outriggers work on scaffold?
An outrigger would be clamped to each leg of the staging, with a caster in each outrigger. Two outriggers are braced together with a bay brace, effectively widening the base and putting the user in compliance with OSHA.
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 |
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.
What is rakers in scaffolding?
Rakers – supports which push the scaffold onto the building. This system takes up space and may not be suitable in urban environments.
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.
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).
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.
Is fall protection required on scaffolding?
The standard requires employers to protect each employee on a scaffold more than 10 feet (3.1 m) above a lower level from falling to that lower level.
What is height-to-base ratio?
In simple terms, the HTD ratio describes the ratio between how tall the rack is compared with how wide it is at its base. A rack that is 10 feet tall and 10 feet wide (a 1-1 HTD Ratio) will be much more stable (less likely to fall over) than a rack that is 10 feet tall and 1 foot wide (a 10-1 HTD ratio).
When dismantling a scaffold All work should be conducted?
When dismantling a scaffold, all work should be conducted: From the top down. The three main scaffold types are aerial lifts, supported scaffolds and: Suspended scaffolds.
What is a bridle in scaffolding?
A bridle is a feature used to bridge openings. A vertical inside tube crossing the opening is attached to the scaffold by a transom, and a horizontal crossing tube on the outside called a bridle tube. The gaps between the tubes and the structure surfaces are packed or wedged with timber sections to ensure a solid fit.
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 a Putlog in scaffolding?
Also known as a bricklayer’s scaffold, a putlog scaffold consists of an outer row of vertical members (standards) joined together by ledgers fixed with right-angle couplers. These support the transverse transoms (or putlogs) which are built into the brickwork bed joints as work proceeds.
What is swivel clamp?
Swivel Clamp is a load bearing coupler that connects two scaffold tubes, which can be used at any angle.
How do you disassemble a scaffold?
How to Dismantle Scaffolding
- Clear a nearby space to set the dismantled pieces of scaffolding down.
- Examine the entire scaffold structure.
- Put on all necessary safety gear.
- Begin the dismantling project at the top of the scaffold.
- Remove the remainder of the platform from the section below.
How do you set up scaffolding on a hill?
The best way to level scaffolding is to move the scaffold into the position where you’ll use it, then add the blocks under each baseplate or wheel. If you’re using wheels, lock them. Then set long, straight on the bottom bar of the end frame; after this, you can adjust the level with screws.
Where do you tie off on a scaffold?
According to OSHA, the scaffolding must be tied off at specific intervals as you go vertically up the wall. For the purposes of this post, “tie off” includes (guys, ties and braces). 5′ wide, the initial tie off must be at 20′.
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
Does scaffolding need to be tagged?
Must I use a tag system on a scaffold? A. Although tag systems are not a legal requirement, the law does require inspection of scaffolding from which a person might fall 2 metres or more and the issue of a report by a competent person, on completion and at least weekly thereafter.
What should not be done on mobile scaffolds?
Do not try to move a rolling scaffold without enough help. Watch out for slopes, holes, debris, and overhead obstructions. Do not use a rolling or mobile scaffold with pneumatic tires as the only support while used, erected or dismantled. Do not extend adjusting screws more than the manufacturer recommends.
Contents