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How to Lay Steel Beams on Concrete Slabs

Steel buildings erected on concrete must be created according to specific guidelines. These guarantee that the buildings will be structurally safe and sound. Steel buildings on concrete slabs include garden sheds, workshops and garages, as well as industrial buildings. Whether the structure is large or small, the same principles of responsible, safe building apply. Before laying out your own concrete slab and steel structure, be sure to familiarize yourself with the basic guidelines and to follow them closely.

Things You'll Need

  • Cement
  • Steel beams
  • Rebar
  • Bolts
  • Welder
  • Shovel
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Instructions

    • 1

      Know the measurements of your building before you begin working with steel. Make the slab 4 inches wider and 6 inches longer than the building to prevent cracking when drilling bolts into the slab.

    • 2

      Make sure the concrete to which you're attaching the steel is at least 4 inches thick. If heavy vehicles or machinery will be inside the building, make the slab 6 inches thick.

    • 3

      Pour footings around the perimeter of the slab at the same time that you pour the slab. The footings are concrete filled holes re-enforced with rebar, a type of steel beam used in construction. The footings should be at least 12 inches deep and 16 inches wide.

    • 4

      Use nuts and bolts to adhere steel plates to each footing where you plan to erect a steel beam. Bolt or weld the beams to the plates to create the framework for your steel structure.


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