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Scaffolding
Temporary structure used to support a work crew and materials / From Wikipedia, the free encyclopedia
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Scaffolding, also called scaffold or staging,[2] is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other human-made structures. Scaffolds are widely used on site to get access to heights and areas that would be otherwise hard to get to.[3] Unsafe scaffolding has the potential to result in death or serious injury. Scaffolding is also used in adapted forms for formwork and shoring, grandstand seating, concert stages, access/viewing towers, exhibition stands, ski ramps, half pipes and art projects.
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There are six 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, suspended scaffolds, timber scaffolds and bamboo scaffolds (particularly in China, India and Hong Kong). Each type is made from several components which often include:
- A base jack or plate which is a load-bearing base for the scaffold.
- The standard, the upright component with connector joins.
- The ledger, a horizontal brace.
- The transom, a horizontal cross-section load-bearing component which holds the batten, board, or decking unit.
- Brace diagonal and/or cross section bracing component.
- Batten or board decking component used to make the working platform.
- Coupler, a fitting used to join components together.
- Scaffold tie, used to tie in the scaffold to structures.
- Brackets, used to extend the width of working platforms.
Specialized components used to aid in their use as a temporary structure often include heavy duty load bearing transoms, ladders or stairway units for the ingress and egress of the scaffold, beams ladder/unit types used to span obstacles and rubbish chutes used to remove unwanted materials from the scaffold or construction project.