Development of Large High-Strength Headed Reinforcing Bars

Research purpose

The proposed study will expand the available data on the anchorage strength of high- strength headed reinforcing bars to include the largest sizes currently permitted in the ACI Building Code, No. 14 and No. 18, and use those results to verify the applicability of the currently proposed design criteria and, if needed, formulate new design criteria to cover the larger bar sizes.

University of Kansas Office of Research
Project Area
Structural Engineering
CPF research grant #
Award amount
Grant period
August 2018 to August 2021
Grant Status
In Progress
Principal Investigator
David Darwin, Professor, University of Kansas
Industry champions

Dominic Kelly, Simpson Gumpertz & Heger
Ron Klemencic, Magnusson Klemencic and Associates
Jack Moehle, University of California, Berkeley
Mike Mota, CRSI
Javeed Munshi, Bechtel
Andrew Taylor, KPFF Consulting Engineers

CPF allies

CRSI Education and Research Foundation (CRSI)
ACI Foundation
BarSplice Products
Headed Reinforcement Corporation

Research deliverables

Quarterly Progress Reports
Draft Final Report
Final Report