Also, in your tables is a statement indicating that when loaded in accordance with the tables, the planks will meet the §1926.451(f)(16) requirement of not deflecting more than 1/60 of the span when loaded. These are for medium-duty, heavy-duty, one-person, two-person and three-person. You have submitted tables showing the maximum loads for specified spans of various widths of your scaffold plank products. Maximum spans for such units shall be as recommended by the manufacturer based on the maximum intended load being calculated as follows: Rated load capacityĢ5 pounds per square foot applied uniformly over the entire span area.ĥ0 pounds per square foot applied uniformly over the entire span area.ħ5 pounds per square foot applied uniformly over the entire span area.Ģ50 pounds placed at the center of the span (total 250 pounds).Ģ50 pounds placed 18 inches to the left and right of the center of the span (total 500 pounds).Ģ50 pounds placed at the center of the span and 250 pounds placed 18 inches to the left and right of the center of the span (total 750 pounds). Section 1(c) of the Appendix states: Fabricated planks and platforms may be used in lieu of solid sawn wood planks. Included in Appendix A are guidelines for setting capacity ratings of fabricated scaffold planking. Non-mandatory Appendix A to this subpart contains examples of criteria that will enable an employer to comply with paragraph (a) of this section. In addition, §1926.451(a)(6) states: Scaffolds shall be designed by a qualified person and shall be constructed and loaded in accordance with that design. Under these provisions, the scaffold planking must be strong enough in relation to the maximum load to meet the 4:1 strength requirement, and must do so without deflecting more than 1/60 of the span when loaded. Section 1926.451(f)(16) states that: Platforms shall not deflect more than 1/60 of the span when loaded. 451(a)(1) requires that, with certain exceptions: ach scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load applied or transmitted to it. However, where appropriate, we try to give some guidance to help employers assess whether products are appropriate to use in light of OSHA requirements. The variable working conditions at job sites and possible alteration or misapplication of an otherwise safe piece of equipment could easily create a hazardous condition beyond the control of the equipment manufacturer. OSHA is generally precluded from approving or endorsing specific products. This is in response to your letter of November 27, 2002, to the Directorate of Construction in which you ask whether the laminated wood scaffold planking that you manufacture meets OSHA strength requirements. Re: Whether Master Plank scaffold planking meets OSHA requirements §1926.451(a)(1), (a)(6), and (f)(16), Appendix A to Subpart L
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |