Inspecting Needle Beam Scaffolds
This simple type of scaffold consists of a platform suspended from needle beams, usually attached on one end to a permanent structural member.
- Make sure scaffold support beams must be installed on edge.
- Ensure ropes or hangers are being used for supports. (Exception: One end of the scaffold may be supported by a permanent structural member.)
- Check that ropes are securely attached to needle beams.
- Make sure support connections are arranged to prevent the needle beam from rolling or becoming displaced.
- Check to make sure platform units are attached by bolts or equivalent means. Cleats and overhang are not considered adequate means of attachment.
The recommended maximum intended load for needle beam scaffolds is 25 pounds per square foot. On these scaffolds, check for the following:
- Ensure beams are at least 4 x 6 inches in cross section, with a maximum beam span of 10 feet, and the platform span is no more than 8 feet.
- Ensure ropes are attached to the needle beam by a scaffold hitch or eye splice, and that the loose end is tied by a bowline knot or a round turn and a half hitch.
- Make sure the rope strength is at least equal to 1-inch diameter, first-grade manila rope.
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6-8. What is the recommended maximum intended load for a needle beam scaffold?
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