FINAL REPORT: Seismic Precast Concrete Wall and Frame Structures with Short-Grouted Ductile Rebar Connections (RGA #03-19)
The Charles Pankow Foundation is proud to announce the completion of RGA #03-19, Seismic Precast Concrete Wall and Frame Structures with Short-Grouted Ductile Rebar Connections. The completed report is available for dowload at the link below.
CLICK HERE TO DOWNLOAD THE FINAL REPORT
- Principal Investigator was Yahya (Gino) Kurama, Ph.D., P.E. of the University of Notre Dame.
- Industry Champions were: Keith Bauer, SE; Kal Benuska, SE; Harry Gleich, PE; Les Kempers, PE; Kevin Kirkley, PE; Walter Korkosz, PE, SE; Don Meinheit, PhD, SE; Jon Mohle, PE, SE; Suzanne Aultman, PE; Jared Brewe, PhD, SE; Andrew Osborn, SE; Wael Zatar, PhD
- CPF Allies and Supporters included the Precast/Prestressed Concrete Institute (PCI), Clark Pacific, and the Metromont Corporation.
ABSTRACT: This report presents an investigation of precast concrete shear walls with nonproprietary, short-grouted connections for ductile energy-dissipating reinforcing bars crossing horizontal joints. Unlike available proprietary grouted splices that use end-threaded reinforcing bars for force transfer along the splice, the energy-dissipation bars in the proposed connection are terminated and grouted inside straight corrugated thin-gauge steel ducts. Vertical, transverse, and longitudinal tie reinforcement is designed around the connectors to transfer the energy-dissipation bar forces into the precast component. The research included six large-scale shear wall test specimens. All six specimens were tested and evaluated under pseudo-static reversed-cyclic lateral loading and superimposed axial loading per seismic acceptance criteria for special precast concrete shear walls in ACI 550.6-19.