Requirements for the Use of Presss Moment-Resisting Frame Systems

S. K. Ghosh, Ph.D., FPCI

President, S. K. Ghosh Associates, Inc., Palatine, Illinois

Neil M. Hawkins, Ph.D.

Professor Emeritus, Department of Civil Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois

The hybrid connection was developed by the National Institute for Standards and Technology (NIST), working in conjunction with Pankow builders, the University of Washington, and others. That developmental test program used small-scale specimens and had an extensive analysis component. At the completion of the NIST study, ACI in 1996 undertook the task of evaluating the significance of this new technology and facilitating the transfer of the technology into practice through its Innovation Task Group (ITG) process. Because the ITG process was new, and the technology had far-reaching implications that generated considerable input from many parties, the technology transfer process was not as rapid as might have been desired.  

References

Day, S., “Cyclic Load Testing of Precast Hybrid Moment Frame Connections,” MSCE Thesis, Department of Civil Engineering, University of Washington, Seattle, WA, 1999.

Raynor, D. J., “Bond Assessment of Hybrid Frame Continuity Reinforcement,” MSCE Thesis, Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, 2000.

ACI Innovation Task Group 1 and Collaborators, “Special Hybrid Moment Frames Composed of Discretely Jointed Precast and Post-Tensioned Concrete Members (ACI T1.2-03) and Commentary (ACI T1.2R-03),” American Concrete Institute, Farmington Hills, MI, 2003.

Priestley, M. J. N., and MacRae, R. G., “Seismic Tests of Precast Beam-to-Column Joint Subassemblages with Unbonded Tendons,” PCI JOURNAL, V. 41, No. 1, January-February 1996, pp. 64-81.

Ghosh, S. K., and Hawkins, N. M., “Codification of PRESSS Structural Systems,” PCI JOURNAL, V. 48, No. 4, July-August 2003, pp. 140-143.

El-Sheikh, M. T., Sause, R., Pessiki, S., and Lu, L. W., “Seismic Behavior of Unbonded Post-Tensioned Precast Concrete Frames,” PCI JOURNAL, V. 44, No. 3, May-June 1999, pp. 54-71.

Nakaki, S. D., Stanton, J. F., and Sritharan, S., “An Overview of the PRESSS Five-Story Precast Test Building,” PCI JOURNAL, V. 44, No. 2, March-April 1999, pp. 26-39, and “The PRESSS Five-Story Precast Concrete Test Building, University of California at San Diego, La Jolla, California,” PCI JOURNAL, V. 46, No. 5, September-October 2001, pp. 20-26.

ACI Committee 318, “Building Code Requirements for Structural Concrete (ACI 318-02),” American Concrete Institute, Farmington Hills, MI, 2002.

Stanton, J., Stone W. C., and Cheok, G. S., “A Hybrid Reinforced Precast Frame for Seismic Regions,” PCI JOURNAL, V. 42, No. 2, March-April 1997, pp. 20-32.

ACI Innovation Task Group 1 and Collaborators, “Acceptance Criteria for Moment Frames Based on Structural Testing (ACI T1.1-01) and Commentary (ACI T1.1R-01),” American Concrete Institute, Farmington Hills, MI, 2001.