{"id":2362,"date":"2018-01-17T08:00:00","date_gmt":"2018-01-17T13:00:00","guid":{"rendered":"https:\/\/www.spanco.com\/questions-to-ask-to-ensure-worker-safety-with-foundationless-jib-cranes\/"},"modified":"2021-10-06T10:24:23","modified_gmt":"2021-10-06T14:24:23","slug":"questions-to-ask-to-ensure-worker-safety-with-foundationless-jib-cranes","status":"publish","type":"post","link":"https:\/\/www.spanco.com\/es\/blog\/questions-to-ask-to-ensure-worker-safety-with-foundationless-jib-cranes\/","title":{"rendered":"Questions to Ask to Ensure Worker Safety with Foundationless Jib Cranes"},"content":{"rendered":"

Foundationless Jib cranes, also known as industrial slab-mounted jib cranes, are bolted directly to an existing concrete floor. Using the existing floor means that you don’t need to purchase a costly special foundation. Plus, you can install and use the system sooner because you don’t need to wait for concrete to cure. Using the existing floor makes sense for smaller capacity and shorter span jib cranes. However, there is a clearly defined limit to how big of a crane can be safely mounted to 6-inch thick concrete, and only if that concrete has enough properly located steel reinforcement.<\/p>\n

Concrete is very brittle and has virtually no strength when loaded in tension, so great care must be taken to keep workers safe before bolting any crane to a concrete floor. Concrete, when overloaded, can crack and catastrophically break, which can result in dropped loads or, worse, the crane falling over. Before a foundationless jib crane is chosen, calculations must be performed to ensure that the existing concrete floor can safely handle the crane’s rated capacity. These calculations ensure that your workers are safe from catastrophic concrete failures.<\/p>\n

Below are some questions to ask before purchasing a foundationless jib crane:<\/p>\n

    \n
  1. Does the crane manufacturer’s sales literature state that the \u201ccustomer is responsible for determining concrete strength\u201d? If that’s the case, you will need to hire a local structural engineer to perform all the calculations required to determine if your existing concrete fulfills all the safety requirements of the International Building Code (IBC).<\/li>\n
  2. Has the crane manufacturer specified the minimum<\/em> steel<\/u> reinforcement thickness, diameter, and spacing required to keep your workers safe? Concrete requires a minimum amount of steel to strengthen the concrete and keep it safe from catastrophic breaking during use. Not supplying enough steel reinforcement or using a thin, wire mesh can lead to a sudden and complete failure of the concrete. If the steel sizes are not specified, it is most likely because you<\/em> are responsible for performing the proper calculations to determine the safe amount of steel required to keep your workers safe.<\/li>\n
  3. Has the crane manufacturer specified the proper steel reinforcement location and elevation required to strengthen the concrete properly and keep your workers safe? If not, see answers to questions 1 and 2 above.<\/li>\n
  4. Has the crane manufacturer specified the minimum length, width, and square footage of concrete required to keep your workers safe? Cranes require a proper amount of concrete counterweight to stay safe and stable during use. Not supplying enough counterweight can lead to an unsafe and unstable condition.<\/li>\n
  5. Has the crane manufacturer specified the minimum distance the crane can be installed from a crack or concrete seam? The closer a crane is mounted to a seam or crack, the weaker the concrete. The minimum safe distance must<\/u> be specified in all cases to keep workers safe.<\/li>\n
  6. Has the crane manufacturer specified the minimum bolt pull-out strength? If not, see answers to questions 1 and 2 above.<\/li>\n<\/ol>\n

    Finally, if in doubt, ask the foundationless jib crane manufacturer if they have the calculations performed to the International Building Code<\/u> that prove the safety of the concrete floor they specify.<\/p>\n

    Knowing the answers to the questions above is essential to ensure worker safety with foundationless jib cranes. That’s why as a foundationless jib crane manufacturer, Spanco provides all the information above and more for their Spanco Foundationless Jib Cranes<\/a>. As always, if you have any questions, please contact us<\/a> today to learn if foundationless jib cranes are right for your application.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Foundationless Jib cranes, also known as industrial slab-mounted jib cranes, are bolted directly to an existing concrete floor. Using the existing floor means that you don’t need to purchase a costly special foundation. Plus, you can install and use the system sooner because you don’t need to wait for concrete to cure. Using the existing…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2362","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"yoast_head":"\nQuestions to Ask to Ensure Worker Safety with Foundationless Jib Cranes - Spanco<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.spanco.com\/blog\/questions-to-ask-to-ensure-worker-safety-with-foundationless-jib-cranes\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Questions to Ask to Ensure Worker Safety with Foundationless Jib Cranes - Spanco\" \/>\n<meta property=\"og:description\" content=\"Foundationless Jib cranes, also known as industrial slab-mounted jib cranes, are bolted directly to an existing concrete floor. 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