Scaffolding | Types and Components parts of Scaffolding

Scaffolding | Types-
Components parts of scaffolding!

• Scaffolding is a temporary rigid structure should platform raised up as some building increases inside height.
• Applied during the mason to work at different stages about a building
• To provide the materials for immediate use at various heights.
• When the height of the floor level exceeds above 1.5 m.
• Generally made up of timber.
• Valuable in construction, demolition, maintenance about repair work.

Components parts of scaffolding

1. Standards
2. Ledgers
3. Putlogs
4. Transoms
5. Braces
6. Guard rail
7. Toeboard
8. Raker

Standards

• Certain are some vertical members of the framework.
• Both supported on the ground either drum about embedded into the ground.

Ledgers

• Horizontal member parallel to walls.

Putlogs

• These move the transverse pieces which do place toward ledgers at one end.
• And supported on the walls at another end
• They are right angles to the walls.

Transoms

• Certain are putlogs but their both ends are supported moving the ledgers

Guard rail

• These are a rail provided like a ledger at the working level.

Braces

• Those are diagonal either cross pieces fixed toward the standards.

Toeboard

• These are a board placed parallel to the ledgers & supported between the putlogs.
• It does provide to operate as a protective measure on the working principles.

Raker

• These are an inclined support

Types of Scaffolding

1. Single or Brick-layer’s scaffolding
2. Double or Mason’s scaffolding
3. Steel or tubular scaffolding
4. Cantilever or Needle scaffolding
5. Wooden scaffolding
6. Suspended scaffolding
7. Trestle scaffolding

Single or Brick-layer’s scaffolding

• It consists of vertical members called standards firmly secured on grounds at 2.4 to 3 m.
• Some standards are connected to various other by longitudinal horizontal members known ledgers at every rise of 100 to 150 cm.
• They are provided on the building site of the standards
• Transverse horizontal members called putlogs & they are resting on the ledgers at one end and into the holes in the wall at the other end.
• Putlogs are 90 cm. in length and are generally spaced 120 cm. apart
• They are provided to support the working platform. 

Double or Mason’s scaffolding

• It is difficult to leave holes in the stone masonry
• To provide a bearing for the putlogs, in mason’s scaffolding two frames of standards, ledgers, and braces are used. One is placed close to the wall and the other at a distance of 1.5 m from the first one. Hence the mason’s scaffold is completely independent of that stone wall.

Steel scaffolding

• Steel scaffolding is similar to that of timber scaffolding.
• The wooden members are replaced by 40 mm to 60 mm diameter steel tubes.
• Special types of steel couplets or fittings are used for connecting different members.
• In that type, the vertical tubes known as uprights either standards are spaced 2.5 to 3 m apart.

Cantilever or Needle scaffolding

• When scaffolding is to be provided for a building on the side of a busy street where the construction of ordinary scaffolding will obstruct the traffic on road.
• The scaffolding is erected from window corners or string courses employing projecting needles.
• A needle is a timber beam that cantilevers out through the holes cut in the wall.

Suspended Scaffolding

• This is a very light type of scaffolding
• Used only for maintenance work
• Such as painting, pointing, whitewashing, distempering, etc
• The working platform is suspended from the roof employing ropes, wires or chains
• The platform can be raised or lowered
• It does not create any obstruction on the ground.

Trestle scaffolding

• A framework in the form of a horizontal member supported at each end by a pair of splayed legs used to carry scaffold boards, a tabletop, etc.
• Working platforms consisting of metal trestle (support frame with a tripod or inverted V form) and horizontal planks or metal decking. Parts can also be made of wood. They can be used up to 3 meters high. When used on balconies, terraces or in the vicinity of openings with a risk of more than 2 meters falls, collective protection (railings, nets, etc.) must be used.