The Charles Pankow Foundation is pleased to announce that the Foundation has recently executed a new Research Grant Agreement with Purdue University for research as further described below.
Principal Investigator - Robert Frosch, Professor
The Charles Pankow Foundation wishes to acknowledge its funding partners for this research project - The ACI Foundation - Strategic Development Council
and the CRSI Foundation
Development and Splice Lengths for High-Strength Reinforcement
To support the adoption of high strength reinforcement (fy > 60 ksi) into widespread use, it is fundamental that appropriate development and splice lengths be calculated. This need is outline in the roadmap for the use of high strength reinforced as presented in the ATC 115 Report. Designers need an expression that is codified for use in practice. This research will develop a design expression which will be proposed for adoption by ACI 318 and will enable appropriate design and detailing of concrete structures containing high strength reinforcement. The research will address splices for seismic and non-seismic applications. Special attention shall be given to splicing of high- strength reinforcement at the bases of walls for structures required to resist earthquake demands. Current regulations do not allow lap splices in or near plastic hinges in beams and columns, but that is not the case for structural walls.