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Cracked section properties for both prestressed and mildly reinforced member are computed using the procedure given by Robert Mast in his paper “Analysis of Cracked Prestressed Concrete Sections: A Practical Approach.” This procedure is summarized in the PCI Design Handbook section 5.2.2.2, but for more detailed explanation see the paper above. For Class C prestressed components, Δfps is calculated as part of this procedure as well.

Hand Calculation

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nameCracked Section Properties and Delta Fps.pdf

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Deflections - Prestressed

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