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Types of scaffolds samuel waithima 2012BC25460

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Presentation on theme: "Types of scaffolds samuel waithima 2012BC25460"— Presentation transcript:

1 Types of scaffolds samuel waithima 2012BC25460
SCAFFOLDING Types of scaffolds samuel waithima 2012BC25460

2 Defination scaffolding is a temporary structure made from wood or metal. It lets you work on part of a building that you can't reach from the ground.

3 Types of scaffold There are two types of sçaffolding
the putlog scaffolding ,which is supported at one end by the buildlng under construction the independent scaffold, which has a horizontal working platform that rest on vertical poles at both ends.

4 parts of scaffold standard-verticle member that carry weight of scaffolding to the ground ledger -horrizontal members that connect the standards.they are parell to building putlogs-cross members that have one end built into the wall of the building braces member fixed diagonally to stiffen the scaffold.

5 Advantages of timber scaffold
its less expensive it is easy to cut and fit timber can be reused trees are readily available

6 Disadvantages it takes longer to erect timber may have hidden defects
tinber putlog scaffold poles leaves holes in the walls, to be filled in. the pole joints are secured with strings and nails rather than stronger purpose made fittings

7 Advantages of metal scaffolding
it is durable it is quick and simple to erect it is more adaptable the poles are all same quality and strength

8 Disadvantages the initial cost is.higher than for timber
the many joint fittings can easily be lost or stolen the poles must be carefully stored and protected when not in use

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