WIN-DASH/PDesign and Analysis of Straight Highway BridgesTutorial (for a Simple Span Prestressed Beam Bridge)ProvidedbyThe BEST CenterUniversity of MarylandCase Study: Bulb-Tee (BT-72), Single Span, Composite Deck, based on Standard SpecificationsBridge Cross Section (Ref. PCI Bridge Design Manual)Project Data (01012, 01022)General Program Option (01032)To switch to Prestressed Concrete mode, input Type 4Span interval can be any numbers from 4-20Only two modes in PC: Analysis and DesignStructural Details (03012)Position will affect the Effective Width and Distribution Factor Haunch will affect the section properties and weightThese two entries are used for steel girder onlySpan Lengths (03062)For single span, only input for Span Length (2) and Overhangs (1&3)Beam Spacing (03042)Spacing is required for Distribution Factor and DL calculationAASHTO-PCI-BT-72 Bulb-TeeInternally Stored Girder Sections in Win-DASH/P:AASHTO I – VIBulb Tee BT-54, 63, & 72PC Section (04012)ID 0 is for internally stored AASHTO Girder. 72 is for BT-72Composite Section (calculated by Win-DASH/P)Strand Pattern (Ref. PCI Bridge Design Manual)Longitudinal Strand Profile(Ref. PCI Bridge Design Manual)Slab and Tendon Geometry (05032)Lines 1-4 are for straight tendons input by rows.Line 5 is for draped tendons input by groups where distance refers to the C.G. of the groupAASHTO Live Loading (06012)Arbitrary Uniform and Concentrated Loads(11012)SDL for wearing surfaceAuto Generation of Dead and Superimposed Dead Loads(02012)Slab thickness for section property calculation and slab + integral wearing surface for DL calculationSlab Information (12034)Precast Beam Information (12036)fc’ at 28 days is for service condition.fc’ at release is for initial conditionPrestressing Steel Properties (04032)fsi=0.75fs’ is used in this exampleIf leaving blanks, losses will be calculated by the program based on the