Diversified Fall Protection Portable Truss Anchor Kullanıcı kurulumu - Sayfa 5
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Truss Requirements
1. Bottom Chord (See Figure 5):
Depth, D, of bottom chord vertical leg of angles must be between 1 1/4 inch and 3 inch.
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The thickness, Y, of the bottom chord must be a minimum of 1/4 inch.
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The gap, S, must be a minimum of 3/4 inch
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The width of the space and legs, X, must be a maximum of 2".
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Must be hot rolled steel with minimum tensile yield strength of 36 ksi.
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2. Truss Span
Bracing shall be straight, undamaged, and meet the original design intent.
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The span and loading of the truss affects the allowable concentrated load that may be applied to the
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truss. It must be capable of withstanding a concentrated load of 900 pounds with a safety factor of two
(2) for certified anchorages and 5000 pounds for non-certified anchorages.
No more than one user is permitted at a time per truss.
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Do not attach to a truss that is smaller than 18" in height (See figure 4).
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An acceptable truss must be designed according to the Steel Joist Institute (SJI) and be a K, KCS, LH, or
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DLH series truss.
The truss must be inspected by an engineer or qualified person for structural integrity which
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includes but is not limited to corrosion, end connections, size, load capacity, welds, existing
loading, bracing, span, or any other unsafe conditions.
Diversified Fall Protection, LLC.
www.fallprotect.com
.
Figure 5 – Bottom Chord Detail
Portable Truss Anchor Instruction Manual – V 1
Copyright Diversified Fall Protection 2013 ©
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