Deck Negative Moments for Simple Spans made Continuous

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bpurto
Deck Negative Moments for Simple Spans made Continuous

When summarizing the Strength I negative moments for deck design over the piers, PGSuper incorrectly adds the noncomposite dead loads to the results. For sizing the negative moment steel in the deck, only composite dead loads should be considered.

Rick Brice
There are two schools of

There are two schools of thought on that topic.

1) The only forces that go into the deck steel are superimposed dead loads and live load.

2) The deck steel takes the full force of the section because at ultimate, the beam is highly cracked, the steel is yielding, plane sections are no longer plane, and the full set of forces are redistributed through the cross section.

Either way you like to look at the problem we've got you covered. There is a setting in the Project Criteria that controls if the full moment or only the superimposed moments are used for negative moment capacity analysis.

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