Specifically roof decks subjected to gravity loading dead live or snow and wind uplift loading can be analyzed using either asd or lrfd methods.
Roof deck deflection.
The amount of flex depends on the magnitude of the load applied span of the member and stiffness of the member.
Standard structural decking patterns are 2 nominal tongued and grooved t g and 3 and 4 double t g products available with vee or eased edges to meet discriminating architectural requirements.
2 deep roof deck and has since replaced the previous industry standard 36 5 and 36 7 attachment patterns.
Commentary the adequacy of deck edge support details should be revised.
All structural members will deflect or flex under load.
A metal roof deck diaphragm is a fairly flexible system somewhat analogous to a truss as shown in figure 2.
Allowable deflection is generally expressed as a fraction of the span in inches.
Structural decking also known as roof decking should not be confused with lumber intended for residential and non residential outdoor decks.
The insurance fire rating or wind uplift requirements of a building may not allow a substitutionof fasteners or change inspacingasgoverned by design.
Deflection of the deck shall not exceed l 240 under the uniformly distributed design live load.
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Deflection is the bending or sag caused by loading.