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Scaffolding for rehabilitation in Madrid, Spain [1] Scaffolding for renovation on the Virgin Mary statue, Santiago de Chile, Chile.. 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.
This type of scaffold is generally used where extensive versatility is required. In many countries, it is common in construction . Horizontal tubes and walking decks can be placed at any height along the vertical tube (as permitted by engineering constraints), and vertical tubes, or legs, can be spaced at any distance apart, up to the maximum ...
A movable scaffolding system (MSS) is a special-purpose self-launching form used in bridge construction, specifically prestressed concrete bridges with segments or spans that are cast in place. The movable scaffolding system is used to support a form while the concrete is cured; once the segment is complete, the scaffold and forms are moved to ...
A historically common type of scaffolding, putlog holes date from ancient Roman buildings. The term putlock and the newer term putlog date from the 17th century [ 3 ] and are still used today. [ 4 ] Putlogs may be supported on the outer ends by vertical poles (standards), cantilevered by one end being firmly embedded in the wall, or ...
Fire behaviour of building materials and elements – Part 17: determination of melting point of mineral fibre insulating materials; concepts, requirements and testing: Active: DIN 4102-18: Fire behaviour of building materials and components – Part 18: fire barriers, verification of automatic closure (continuous performance test) Active: DIN ...
A variety of restraint types already existed in Roman times. Some early versions of cup lock shackles existed at this time. These were widely used in medieval times, but their use declined when mass production made the manufacture of locks built into restraints affordable.
A selection of woodworking clamps. Top: Pipe clamp; Upper row: F-clamp or bar clamp, one-handed bar clamp ("Quick Grip"), wooden handscrew; Lower row: spring clamp, C-clamp (G-clamp ), wooden cam clamp
Since the height of the barrier can only be adjusted through the addition and removal of stoplogs, finding a lighter and stronger material other than wood or concrete became a more desirable choice. [2] Other materials, including steel and composites, can be used as stoplogs as well.
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