24.02.2017 Views

Structural Concrete - Hassoun

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988 Chapter 24 Design and Analysis Flowcharts<br />

Start<br />

Assume girder size based on span and girder<br />

Determine applied dead load for the interior and exterior<br />

Determine live-load distribution factors for the interior and exterior<br />

Determine unfactored and factored force<br />

Determine prestressing<br />

Determine long-term and short-term prestressing<br />

Check allowable<br />

Design for flexure under service limit<br />

Design for flexure under strength limit<br />

Design for shear under strength limit<br />

Check<br />

Does the girder pass<br />

all design checks and<br />

is the selected girder<br />

most optimum<br />

design?<br />

No<br />

Select a different<br />

size or change<br />

strand arrangement<br />

Yes<br />

End<br />

Flowchart 24.14<br />

Bridge superstructre design.

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