Efficacy Study Of Post-Tensioned I Girder Made Of Ultra High Performance Fiber Reinforced Concrete And Ordinary Concrete For Irc Loading

In Today’s World, Higher Structures Are More Needed To Reduce Traffic Congestion. As Such, Many Viaducts, Flyovers, And Bridges Are Under Construction All Around. Bridge Superstructures Are Designed Depending On Many Criteria; The Most Often Used Type Is The Beam Slab System, Usually Using Prestressed Beams. Increasing In Demand For Their Structural Efficiency, Enhanced Stability, Affordability, Simplicity Of Construction, And Faster Erection, Post-Tensioned I-Girder Superstructures Recent Years Have Seen Ultra-High-Performance Fiber Reinforced Concrete (UHPFRC) Become A Revolutionary Material For Bridge Building, So Changing Our Conception And Engineering Of Infrastructure.Excellent Mechanical Qualities Including High Compressive And Tensile Strength, Improved Durability, Are Provided By This Advanced Concrete Variation. Using UHPFRC Has Many Advantages In Building Bridges. First Of All, Its Amazing Strength-To—-Weight Ratio Lets Designers Create Thinner And Lighter Structural Components, So Enabling Longer Spans And Lower Material Use. This Reduces Environmental Impact In Addition To Improving Bridge Appearance. Though UHPFRC Has Many Advantages, Its General Acceptance In Bridge Construction Continues To Advance Mostly In Regards To Cost, Supply, And Design Standardizing Problems. Therefore, Particularly In Terms Of Financial Aspects, It Is Essential To Assess Whether Ultra-High-Performance Fiber-Reinforced Concrete Is More Viable Than Traditional Concrete In Bridges. This Work Aims To Investigate, In Comparison To Conventional Concrete, The Relative Efficiency Of Post-Tensioned I-Girders Generated From Ultra-High-Performance Fiber Reinforced Concrete. This Assessment Is Based On The Costs Of Concrete Manufacture, Precast Steel Reinforcement, Shear Reinforcement, Interface Shear Reinforcement, Untensioned Steel Reinforcement, Erection, And RE Panels In Approaches For A Normal Flyover With A Clearance Of 5.5 Meters And A Total Carriageways Width Of 16.0 Meters. MIDAS Civil Has Conducted Parametric Modeling In Order To Analyze And Design Superstructures Spanning 25m, 30m, 35m, 40m, And 45m Across A Spectrum Of Span Lengths. Then A Comparison Between Post-Tensioned I-Girders Built From Ordinary Concrete And Those Made From Ultra-High-Performance Fiber-Reinforced Concrete Has Been Done. While The Design Of Vi Post-Tensioned Girders Follows IRC:112-2020, The Analysis Of Prestressed Concrete Girders For The Standard Loading Criteria Stated In IRC:6-2017 Is Conducted For Road Bridges. When Pertinent Indian Codes For Ultra-High-Performance Fiber-Reinforced Concrete Are Not Available, NF P18-710 (French Standard) Is Used Selectively. The Results Of The Study Show That Post-Tensioned I-Girders Built From Ultra-High-Performance Fiber-Reinforced Concrete Become Reasonably Affordable For Spans Longer Than 40.0 M. Reduced Depth Of UHPFRC Girder, Elimination Of Untensioned Steel Specifications, Reduced Need For Shear Reinforcement Resulting From The Role Of Steel Fibers To Shear Strength, Shallower Depths Leading To Decreased Erection Costs Are Among The Several Reasons Blamed For This.