Glossary of Terms
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A combination of scaffold systems and components used to suspend a work platform under structures, primarily bridges. The scaffold attaches in various configurations to the bridge’s guardrails, facia girders, beams or parapets. It includes a systems of rollers which allow the entire work platform to be moved along under the lower portion of the bridge.
RAKER - See Brace, Knee.
BRACE - KNEE (SPUR, RAKER) - A vertical diagonal load bearing member
SQUARE KNOT - A knot used for connecting two ropes together. Also called a Reef Knot.
A system used during the construction process where the original shoring is partially removed and/or replaced in a planned sequence to avoid any damage to partially cured concrete, and to aid in the support of additional construction.
The side of an opening in a wall for a window or door.
A tube fixed by means of a threaded fitting or by wedging between two opposing surfaces of a structure, e.g. between two window reveals, to form an anchor to which the scaffold may be tied.
An attachment for a single or extension ladder which allows the top of the ladder to engage the ridge of a roof for support.
RIGHT ANGLE CLAMP