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Category: Histoire
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Initial Fortran PBeam softare prepared by FDOT (originally obtained from Texas Highway Department)AASHTO Beams introduced into FDOT StandardsFlorida Bulb-T beams began to be introduced into StandardsSimple Span Prestressed Concrete Beams Program updated and submitted to HEEP Area II State's cooperation effort.Beta version of the PSBeam program created in MathcadFDOT Report BD545-7 By Ron Cook published by SRCUpdate to PSBeam program - prestress loss changes from refined to approximate, and Camber equations reflect results from Ron Cook StudyPSBeam program updated to use transformed section properties, thus setting Elastic Shortening Losses to zeroFIB 36 through FIB 78 released in the July interims of the 2010 StandardsFIB 84 & FIB 96 Released in the Jan 2011 interim of the 2010 standardsK.td factor changes in LRFD thus changing creep coefficient valueAggregate correction factor changes from 0.9 to 1.0 with the new modulus of elasticity equation from LRFD1st Edition of AASHTO LRFD released. Approximate method is a lump sum factor approach, while the refined method resembles what is today the approximate method.
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