It's going to be sandwiched between 2 buildings. I have a Medium Duty workers platform that is going to be 125' tall x 60' long. Northeast USA RE: Where can I find a book on frame/pipe scaffold design? anchorengineer (Structural) Tell us a bit more about your specific application. If you're dealing with rental equipment, I can tell you that at least one domestic source arbitrarily reduced leg capacity because of the age & condition of their rental fleet. Of course, that testing was done on new equipment.
![who should design a scaffold who should design a scaffold](https://image.slidesharecdn.com/scaffolddesignandcalculations-170529081035/95/scaffold-design-and-calculations-2-638.jpg)
Having been inside that "Black Box" (in the shoring industry), I can tell you that most domestic manufacturers & suppliers have developed load charts based on load tests. Screw jack extension also has an impact on leg capacity - some have a very limited range of adjustment and really have little impact on leg load - others have a rather long range of adjustment and a greater influence on leg capacity.Īs far as your "Black Box" comment - from the outside looking in, I can agree that's what it appears to be. Keep in mind that the lacing must be anchored to a secure support.
![who should design a scaffold who should design a scaffold](https://www.asclimited-edinburgh.co.uk/wp-content/uploads/2018/09/GMI-0101-1-P1-1.jpg)
As the height grows, the more a scaffold/shoring tower starts to behave as a single post shore, and horizontal lacing should come into play to stiffen the legs. Obviously, the taller the stack, the lesser the capacity. Bil-Jax also fabricated for themselves and others (Waco & Patent?). Each had their own load charts which diverged as the height increased. Safway sold off their heavy-duty shoring equipment to Symons and it has become mixed in with Symons own equipment. Harsco Infrastructure (Patent Scaffolding) could be one source. It will depend on your application - are you designing a scaffold application (i.e. Most every overseas source for the same that I have encountered tends to be overly optimistic about their products' capacity. To learn more about loading capacity limits and scaffold safety, or if you are interested in one of our scaffolding products or services, please contact United Scaffold Supply at 1-86 or by filling out a contact form on our website.Anchorengineer, Having worked in the concrete & temporary shoring field for many years, I can tell you that almost every domestic source of pipe frame scaffold/shoring that has a rental fleet would be unwilling to publish any leg capacity charts, let alone release their charts to anyone except for a specific application that they designed. If you are unsure about the load capacity of your particular scaffolding and are unable to contact the engineer of record, reputable structural engineers, such as the team from Bogdonov Pao Associates LTD., can provide information and assistance in determining the correct load capacity. All scaffolding should also be inspected before each shift to ensure that the overall integrity of the scaffold is safe for use. Similar to loading roofs, floors, and parking garages under construction, the engineer of record should be contacted to confirm the overall load capacity prior to loading. Scaffolding should also be kept clear of all debris, including scrap material, boxes, chairs, cans, or other items that could potentially cause an accident. To help prevent overloading accidents, workers should also avoid working on scaffolding covered in snow, as it can be hard to accurately determine the added weight. Scaffolding that is overloaded can lead to workers falling and becoming injured or the scaffolding crumbling under the weight.
![who should design a scaffold who should design a scaffold](https://www.sparsteel.com/images/scaffolding-designs.jpg)
The Dangers of Overloading ScaffoldingĮven though it might be tempting to ignore the loading capacity of scaffolding or floors and roofs under construction in order to save time and hassle, the consequences of ignoring loading capacity limits can end up costing you more time and money in the long run. This can easily be measured through the use of a tape measure and straight edge. One of the easiest ways to tell if a scaffold is overloaded is the deflection method in which all platforms, planks, or decking cannot deflect more than 1/60 of the span when loaded. To determine the maximum intended load based on a scaffold’s load capacity, you should total the weight of all: The overall load capacity will vary from scaffold to scaffold and will be determined by data supplied by the manufacturer or engineer.
![who should design a scaffold who should design a scaffold](http://ccstage.co.uk/SRS/wp-content/uploads/2018/04/20180222_084700-1024x576.jpg)
While scaffolding and scaffold components are often capable of supporting their own weight and about four times the maximum intended load (in pounds per square foot), it is important to ensure that the scaffold is never loaded more than its rated load capacity. That is why we offer a range of safety supplies and safety training services. At United Scaffold Supply, we understand how important it is to create the safest possible work environment. Taking the time to understand the meaning of loading capacity limits and why they are important can help ensure that your workers are following proper scaffold safety measures.