Deflection(Deck and Diaphragms) vs. DL Defl Deck @ Pt B {1/2 pt}

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Greg Hansen
Deflection(Deck and Diaphragms) vs. DL Defl Deck @ Pt B {1/2 pt}
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Rick,

Can you please explain the difference between the DL deflection for deck and diaphragms shown in the Camber and Deflections and the DL deflection Deck in the TxDOT haunch summary within the TxDOT Girder Schedule Report? I am trying to figure out which value should be added to the Dead Load Deflection Diagram in the span details. Thanks!

Rick Brice
Deflections

I'm not an expert with TxDOT detailing practices so this probably wont answer your question directly.

The Deflection (Deck and Diaphragms) in the Camber and Deflection table is the sum of the deflections from diaphragms, cast deck, and stay in place deck panels. This value does not include the slab haunch build-up.

The DL Defl Deck @ Pt B in the TxDOT Haunch Summary table is the deflection due to the cast portion of the slab alone. If your model has stay in place deck panels, the deflection due to the panels is not included in this number.

I don't know TxDOT's intended use of these values.

Greg Hansen
The deflection summary is for

The deflection summary is for the combined DL deflection due to the panels and the cast in place deck. Thank you for your prompt answer!

Greg Hansen

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