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Temperature Loads

Temperature Loads

Temperature Loads

(OP)
Just wanted to know how the design of the bridge deck is done for temperature loads.
is it that the temperature loads are reduced by a factor that relates to the creep coefficient of concrete.
Thanks

RE: Temperature Loads

If you are designing a concrete deck supported on stringers/girders/boxes, there is no temperature load.

RE: Temperature Loads

Temperature effects are short to medium term cyclic loads, so wouldn't normally have any reduction for creep. If you are looking at movements due to annual temperature variation I suppose you could make some reduction for creep, but given the uncertainties of creep and shrinkage behaviour I'd suggest it would be a better idea to have some in-built conservatism by ignoring creep (unless creep resulted in a critical design case, in which case you should definitely include it).

Doug Jenkins
Interactive Design Services
http://newtonexcelbach.wordpress.com/

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