who knows how to deal with prestressed concrete calculation

huangyhg

who knows how to deal with prestressed concrete calculation
i used to calculate prestressed concrete bridges or the transportation structures in bridge program (bp, finite program) in china. bp was powerful and could deal with prestressed concrete structure, live load, creep and shrinkage and so on. i used s-frame for several bridges (now i am working in canada). i did know how to use s-frame to compute the prestressed concrete structures. could you explain the procedure and  give me a sample?
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