Design Requirements for Mechanically Spliced High-Strength Reinforcing Bars in Hinge Regions
Design Requirements for Mechanically Spliced High-Strength Reinforcing Bars in Hinge Regions
Building Code Requirements for Structural Concrete (ACI 318-19) applies a restriction to use of mechanical splices for high strength rebar (Gr80 and 100 bars) in hinge regions. This restriction puts Gr80 and 100 bars at a constructability disadvantage compared with Gr60 bars. The main objectives for the proposed research are to 1) develop design criteria for mechanical splices in hinge regions that would result in adequate performance for Gr80 and 100 bars, and 2) redefine performance criteria for mechanical splices to allow their use in hinge regions.
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Grant Details
ProjectDesign Requirements for Mechanically Spliced High-Strength Reinforcing Bars in Hinge RegionsGranteeUniversity of Texas at San AntonioCategoryConcreteSubcategoryHigh-Strength RebarGrant #03-22Award Amount$330,480Grant PeriodApril 2022 - January 2024Grant StatusActivePrincipal InvestigatorsWassim M. Ghannoum, Ph.D., P.E.Industry ChampionsTim Cartwright, Manuel Conde, David Fanella, Joe Ferzli, David Fields, Cathy French, Robbie Hall, Jon Hankenhof, Dominic Kelly, Jeff Kramer, Andres LePage, Qingzhi Liu, Ann Masek, Eric Nissen, Conrad Paulson, Jose Pincheira, Jacob Selzer, Amy TrygestadCPF AlliesAmerican Concrete Institute Foundation, Concrete Reinforcing Steel Insitute FoundationSupportersBarSplice, Cascade Steel, CMC, Dayton Superior, HRC, Nucor, nVent, Splice Sleeve -
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