Suspension Scaffolds
Suspended scaffolds are platforms suspended by ropes, or other non-rigid means, from an overhead structure.
Two-point (swing stage): Platform supported by hangers (stirrups) suspended by two ropes from overhead supports and equipped with a means to permit the platform to be raised and lowered.
Catenary: Platform supported by two essentially horizontal and parallel ropes attached to structural members of a building. Additional vertical pickups may also provide support.
Multi-point Adjustable: Platform(s) suspended by more than two ropes from overhead supports and equipped with a means to permit the platform to be raised and lowered. Includes chimney hoists.
Interior Hung: Platform suspended from the ceiling or roof structure by fixed-length supports.
Needle Beam: A platform suspended from needle beams.
Multi-level: Two-point or multi-point adjustable suspension scaffold with a series of platforms at various levels resting on common stirrups.
Float (ship): Braced platform resting on two parallel bearers and hung from overhead supports by ropes of fixed length.
Knowledge Check Choose the best answer for the question.
1-4. Which scaffold type is supported by hangers (stirrups) suspended by two ropes from overhead supports and equipped with a means to permit the platform to be raised and lowered?
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