Dynamic Analysis of Active‐Control, Cable‐Stayed Guideway
Publication: Journal of Structural Engineering
Volume 119, Issue 8
Abstract
The effects of cable‐tension control on guideway deflection of a planar, cable‐stayed support structure for moving vehicles is examined. The structure studied is referred to as double stayed, as it incorporates stay cables both above and below the guideway in a symmetric arrangement. Use of double stay cables allows static guideway alignment to be determined and maintained by cable pretension. A typical guideway section is modeled as a simply supported beam with discrete elastic supports at the cable connections. The supporting pylon is treated as a cantilever beam with concentrated end loads. Fourier analysis and the method of assumed modes are used to solve the coupled equations of motion when the guideway is subjected to a moving constant load. Numerical results show that guideway deflection can be effectively reduced through tension control in the lower stay cables. Modification of lower‐cable tensions in response to external loading has the effect of increasing the load‐carrying ability of the pretension in upper cables.
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References
1.
Aboul‐ella, F. (1988). “Analysis of cable‐stayed bridges supported by flexible towers.” J. Struct. Engrg., ASCE, 114(12), 2741–2754.
2.
Danby, J. M. A. (1985). Computing applications to differential equations. Reston Publishing Company, Inc., Reston, Va.
3.
“Dynamics of steel elevated guideways—an overview.” (1985). Subcommittee on Vibration Problems Associated with Flexural Members on Transit Systems, Committee on Flexural Members of the Committee on Metals of the Structural Division, J. Struct. Engrg., ASCE, 111(9), 1873–1897.
4.
Hegab, H. I. A. (1986). “Energy analysis of cable‐stayed bridges.” J. Struct. Engrg., ASCE, 112(5), 1182–1195.
5.
Housner, G. W., and Masri, S. F., eds. (1990). Proc., U.S. National Workshop on Structural Control.” Publ. No. M9013, University of Southern California, Los Angeles, Calif.
6.
Lazar, B. E. (1972). “Load balance analysis of cable‐stayed bridges.” J. Struct. Engrg., ASCE, 98(8), 1725–1740.
7.
Lopez‐Almansa, F., and Rodellar, J. (1989). “Control systems of building structures by active cables.” J. Struct. Engrg., ASCE 115(11), 2897–2913.
8.
Meirovitch, L. (1975). Elements of vibration analysis. McGraw‐Hill Inc., New York, N.Y.
9.
Morris, N. F. (1974). “Dynamic analysis of cable‐stiffened structures.” J. Struct. Engrg., ASCE, 100(5), 971–981.
10.
Morris, N. F. (1976). “Analysis of cable‐stiffened space structures.” J. Struct. Engrg., ASCE, 102(3), 501–513.
11.
Podolny, W. Jr., and Flemming, J. F. (1972). “Historical development of cable‐stayed bridges.” J. Struct. Div., ASCE, 98(9), 2079–2095.
12.
Rodellar, J., Barbat, A. H., and Martin‐Sanchez, J. M. (1987). “Predictive control of structures.” J. Engrg. Mech., ASCE, 113(6), 797–811.
13.
Smith, B. S. (1968). “A linear method of analysis of double‐plane cable‐stayed girder bridges.” Proceedings of the Institute of Civil Engineers, London, England.
14.
Whitelaw, R. L., Szeless, A. G., Counts, J., and Garst, D. A. (1974). “Cable‐stayed guideway: analyses and dynamic model tests.” Rep. No. FRA/ORD/D‐74‐1B, Virginia Polytechnic Institute and State Univ., Blacksburg, Va.
15.
Yang, J. N., and Giannopoulos, F. (1978). “Active Tendon Control of Structures.” J. Engrg. Mech. Div., ASCE, 104(3), 551–568.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 119 • Issue 8 • August 1993
Pages: 2403 - 2420
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Apr 23, 1992
Published online: Aug 1, 1993
Published in print: Aug 1993
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