Flexural Properties of Flexible Conductors Interconnecting Electrical Substation Equipment
Publication: Journal of Structural Engineering
Volume 131, Issue 1
Abstract
This paper presents the results of quasi-static bending tests on two different flexible conductors (cables) used to interconnect electrical substation equipment. The main objectives were to observe the flexural response of flexible conductors and to determine their moment–curvature relationships under axial tension. The results of the tests indicate that the force–displacement behavior of the conductors is linear-elastic with negligible hysteretic response. For most combinations of axial tension and lateral displacement, the flexural stiffness is very small, and tends toward the minimum possible flexural stiffness, corresponding to the situation where all the strands are slipping past each other, and are unable to transfer any shear force. Only for very large axial tension values does the flexural stiffness approach the maximum possible flexural stiffness, corresponding to the situation where all the strands are able to transfer longitudinal shear forces over one another, and the conductor section acts as a solid cross section.
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Acknowledgments
This project was sponsored by the Pacific Earthquake Engineering Research Center’s Program of Applied Earthquake Engineering Research of Lifeline Systems supported by the California Energy Commission, California Department of Transportation, and the Pacific Gas and Electric Company. This work made use of Earthquake Engineering Research Centers Shared Facilities supported by the National Science Foundation under Award Number EEC-9701568. The writers greatly appreciated the input and coordination provided by Dr. Michael Riemer from PEER and Mr. Eric Fujisaki from the Pacific Gas and Electric Company (PG&E) during the development of this research project. The support of Mr. David Chambers from the California Energy Commission and of Mr. Craig Riker from the San Diego Gas and Electric Company (SDG&E) is also gratefully acknowledged.
References
Applied Technology Council (ATC). (1992). “Guidelines for cyclic seismic testing of components of steel structures.” ATC-24, Redwood City, Calif.
Benuska, L., technical ed. (1990). “Loma Prieta Earthquake reconnaissance report.” Earthquake Spectra, Supplement to Volume 6, Earthquake Engineering Research Institute, Oakland, Calif.
Dastous, J.-B., and Pierre, J.-H. (1996). “Experimental investigation on the dynamic behavior of flexible conductors between substation equipment during an earthquake.” IEEE Trans. Power Deliv., 11(2), 801–807.
Filiatrault, A., and Stearns, C. (2002). “Electrical substation equipment interaction—Experimental flexible conductor studies.” Structural Systems Research Project Rep. No. SSRP-02/09, Department of Structural Engineering, University of California, San Diego, La Jolla, Calif.
Hall, J., technical ed. (1995). “Northridge Earthquake of January 17, 1994 reconnaissance report Volume 1.” Earthquake Spectra, Supplement to Volume 11, Earthquake Engineering Research Institute, Oakland, Calif.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 131 • Issue 1 • January 2005
Pages: 151 - 159
Copyright
© 2004 ASCE.
History
Received: Apr 17, 2003
Accepted: Feb 18, 2004
Published online: Jan 1, 2005
Published in print: Jan 2005
Notes
Note. Associate Editor: Andrei M. Reinhorn
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