Connections Between Precast Elements—Failure within Connection Region
Publication: Journal of Structural Engineering
Volume 115, Issue 12
Abstract
This paper presents the test results of three moment‐resisting connections between precast beam‐column elements designed for regions of moderate to high seismicity. The specimens are subjected to cyclic lateral load reversals that are progressively amplified until the structures are taken to inter‐story drifts (ratio of lateral story displacement to story height) exceeding 4%. Two of the test specimens represent exterior connections (BME, BMF), and the third represents an interior connection (BMG). The connections include: BME—bolted, BMF—threaded rebar with ordinary couplers, and BMG—threaded rebar with tapered‐threaded couplers. The plastic hinge is forced to develop within the connection region in all three specimens. The specimens exibit ductility and energy dissipation characteristics similar to those of ordinary reinforced concrete elements, as the connection regions are designed to emulate ordinary reinforced concrete in a precast system. The threaded rebar connections with tapered‐threaded splices represent the most favorable solution in terms of performance, fabrication, and economy.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Amu, O. O., and French, C.‐ W. (1985). “Moment resistant connections in precast structures subjected to cyclic lateral loads.” Struct. Res. Report No. 87‐07, Dept. of Civ. and Mineral Engrg., Univ. of Minnesota, Minneapolis, Minn.
2.
Building code requirements for reinforced concrete. (1983). ACI 318‐83, Amer. Concr. Inst., ACI Comm. 318, Detroit, Mich.
3.
Darwin, D., and Nmai, C. (1986). “Energy dissipation in RC beams under cyclic load.” J. Struct. Engrg., ASCE, 112(8), 1829–1846.
4.
Fenwick, R. C., and Nguyen, H. T. (1981). “Reinforced concrete beam‐column joints for seismic loading.” School of Engrg. Report No. 220, Dept. of Civ. Engrg., Univ. of Auckland, Auckland, New Zealand.
5.
French, C. W., Amu, O., and Tarzikhan, C. (1989). “Connections between precast elements—Failure outside connection region.” J. Struct. Engrg., ASCE, 115(2), 316–340.
6.
Hafner, M., and French, C. W. (1986). “Moment resistant connections between precast elements subjected to cyclic lateral loads.” Struct. Res. Report No. 87‐09, Dept. of Civ. and Mineral Engrg., Univ. of Minnesota, Minneapolis, Minn.
7.
Hognestad, E. (1951). “A study of combined bending and axial load in reinforced concrete members.” Bull. Series No. 399, Univ. of Illinois Engrg. Exp. Station, Urbana, Ill.
8.
Jayashankar, V., and French, C. W. (1987). “An interior moment resistant connection between precast elements subjected to cyclic lateral loads.” Struct. Res. Report No. 87‐10, Dept. of Civ. and Mineral Engrg., Univ. of Minnesota, Minneapolis, Minn.
9.
Martin, L. D., and Korkosz, W. J. (1982). “Connections for precast concrete buildings including earthquake resistance.” Tech. Report No. 2, Prestressed Concr. Inst., Chicago, Ill.
10.
Mattock, A. H., Kriz, L. B., and Hognestad, E. (1961). “Rectangular concrete stress distribution in ultimate strength design,” J. Amer. Concr. Inst., ASCE, 57(8), 875–926.
11.
“Recommendations for design of beam‐column joints in monolithic reinforced concrete structures.” (1985). J. Amer. Concr. Inst., 82(3), 266–283.
12.
Tarzikhan, C., and French, C. W. (1987). “Welded and composite connections between precast elements subjected to cyclic lateral loads.” Struct. Res. Report No. 87‐08, Dept. of Civ. and Mineral Engrg., Univ. of Minnesota, Minneapolis, Minn.
13.
Thompson, K. J., and Park, R. (1978). “Stress‐strain models for Grade 275 reinforcing steel with cyclic loading,” Bull. New Zealand Nat. Soc. Earthquake Engrg., 11(2), 101–109.
14.
Thompson, K. J., and Park, R. (1980). “Ductility of prestressed and partially prestressed concrete beam sections.” Prestressed Concr. Inst. J., 25(2), 46–70.
Information & Authors
Information
Published In
Copyright
Copyright © 1989 ASCE.
History
Published online: Dec 1, 1989
Published in print: Dec 1989
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.