Impact Load on a Composite Deck
Impact Load on a Composite Deck
(OP)
Trying to determine if a composite roof deck (3" W Deck with Lt. Wt. Conc. fill) can withstand the impact of a piece of equipment dropped from a certain height in the event the crane carrying the load fails. Any relevant design equations?
The current methodology I am using:
Currently I have determined the amount of energy that would have to be transmitted into the deck with gravitational potential energy:
PE=mgh
Assuming that energy will do work on the roof deck when the equipment impacts the deck, it will cause a deflection, x, on the span deck dependent on the decks stiffness, k:
PE=0.5kx^2
But I don't know how to determine what the stiffness of the deck would be or the maximum allowable deflection, x, of the deck would be.
Any guidance?
The current methodology I am using:
Currently I have determined the amount of energy that would have to be transmitted into the deck with gravitational potential energy:
PE=mgh
Assuming that energy will do work on the roof deck when the equipment impacts the deck, it will cause a deflection, x, on the span deck dependent on the decks stiffness, k:
PE=0.5kx^2
But I don't know how to determine what the stiffness of the deck would be or the maximum allowable deflection, x, of the deck would be.
Any guidance?






RE: Impact Load on a Composite Deck
RE: Impact Load on a Composite Deck
RE: Impact Load on a Composite Deck
Similar to Ron's suggestion, SDI recommends ignoring the contribution of the deck for dynamic loads.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.