Swisher SR84X144G User Manual

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Concrete Slab and Anchoring Requirements

Model

Number

Minimum

Thickness

Minimum

Reinforcing

Overhang

(Minimum All Sides)

Minimum

Strength

SR84X039G 5” #4’s @ 24” O.C. 5’-9” 2,500 psi

SR84X054G 5” #4’s @ 24” O.C. 4’-9” 2,500 psi

SR84X084G 5” #4’s @ 24” O.C. 3’-8” 2,500 psi

SR84X114G 5” #4’s @ 24” O.C. 4’-3” 2,500 psi

SR84X144G 5” #4’s @ 24” O.C. 4’-11” 2,500 psi

To ensure Near-Absolute Protection the ESP Safety Shelter must be

anchored to an adequately reinforced concrete slab to resist the

forces applied during a severe wind event. The minimum thickness,

reinforcing and overhang of the concrete slab are shown in the chart

below. If the thickness of the concrete is increased then the

overhang could be decreased if reviewed and approved by a

Licensed Structural Engineer.

Any deviation from the design criteria will require a Licensed

Structural Engineer in your State to review and make

recommendations for your specific situation and approve your

slab. This slab analysis is not provided by the manufacturer. Failure

to follow the installation and inspection checklist provided with this

shelter can result in catastrophic failure up to and including loss of

life as a result. ESP Safety Shelters, Swisher Acquisition Inc. (SAI) or

any of its affiliated companies have no liability if the slab and

anchoring design criteria are not followed and verified by a third party

qualified inspector.

Anchor bolt installation is for slab on grade applications only. Do not

drill or cut into supported slab over a basement or crawl space.

Steps should be taken to avoid drilling into pre-tensioning or post

tensioning strands or reinforcing in the slab.

MINIMUM SLAB REQUIREMENTS BY MODEL

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Swisher SR84X144G ESP Safety Shelter