Cuplock or H-Frame Scaffolding is a framework of materials erected to provide a stable working platform.This is to facilitate the repair and construction of buildings. Cuplock or H-Frame Scaffolding is a system made up largely of metal tubes and wooden/metal platforms on which workers stand to access the building to work on. The scaffolding framework is secured at the base at ground level and tied to the building to be worked on to ensure it is steady and safe. Due to the nature of the work involved and the height at which workers must often operate, strict safety regulations and laws are in place to ensure that all scaffolding companies minimize risks to both their employees and to people on the ground.
The standard method of scaffolding is called "tube and fitting". The scaffolding structure is made up of several different components, each having its own use in construction and performance of the scaffolding system. Here are the useful components
Standards:
Scaffolding Standards are vertical tubes. They are also known as uprights.
Ledgers:
Scaffolding Ledgers are horizontal tubes which run parallel to the building and are fixed to the standards. A row of ledgers is called a lift.
Transoms:
These are the smaller tubes which are laid horizontally and are supported by the ledgers. They form the base on which the working platform is laid down.
Couplers:
These are used to fix two tubes or standards & Ledgers.
Bracing:
To give the structure rigidity, a system called bracing is used. Ledger bracing: Ledger bracing runs down the side of the scaffolding structure going diagonally from a ledger on one level to the next ledger on the next level, thus creating a zigzag shape. This creates stability and prevents the structure from falling sideways. Façade bracing: This bracing runs parallel to the building and gives the framework further rigidity.
Ties:
Metal ties are used to secure the scaffolding to the building making the framework very secure. If no ties are used the scaffolding remains an independent structure, which can result in safety risks.