![]() ![]() All that steel is a temporary support used during construction. Also you can see the needle beam that rest on the cantilevered beam just below the porch at the top of the stairs. Each employee on a boatswains chair, catenary scaffold, float scaffold, needle beam scaffold, or ladder jack scaffold shall be protected by a personal fall. Here we see the same beam, from the other side. Needle Beam in Action, you can see that this beam goes from the street, into the house, while work is done in the garage/foundation area to the house. Each worker 10 feet (3.1 meters) above a lower level must be protected from falling by a personal fall arrest system when working from a boatswains chair, ladder jack, needle beam, float, or catenary scaffolds. Take a look, and hopefully this will help you understand the whole needle beam concept. Attach with a scaffold hitch or eye splice, properly secured to prevent the beam from rolling or being displaced. Rope for supports must be at least 1 inch first grade manila or larger. Needle beams must be at least 4 x 6 inches and the span must not exceed 10 feet. 6-40.) Needle-beam scaffolds should be used on-1 y for the support of personnel doing light work. All needle beam scaffolds must be constructed to support the intended load c. 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. I have found a real life example of a needle beam being used on a construction site in San Francisco. A needle-beam scaffold consists of a plank platform resting on two parallel horizontal beams, called needle beams, which are supported by lines from overhead. ![]() If you have to take out and re do a portion of an existing foundation, your contractor will most likely use a needle beam while the work is going on. These needle beams are often used to hold up a house/building/structure, while doing foundation work. Support connections must be arranged to prevent the needle beam from rolling or becoming displaced.Platform units must be attached by bolts or equivalent means. Ropes must be securely attached to needle beams. This always comes up in the practice questions, what is a needle beam and what are they used for?īasically, these are temporary beams, used to hold up a structure while structural work is being done. Scaffold support beams must be installed on edge.Ropes or hangers must be used for supports. ![]()
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