Seismic Response of Tall Guyed Masts to Asynchronous Multiple-Support and Vertical Ground Motions
Publication: Journal of Structural Engineering
Volume 134, Issue 8
Abstract
The seismic behavior of tall masts was investigated with special considerations for the realistic modeling of ground motion at the supports. Three existing masts with varying heights of 213, 313, and were numerically studied under the effects of three earthquake records with all three translational ground motion components. The earthquake excitation was prescribed as a displacement-controlled motion providing the opportunity to consider the asynchronous shaking of the cable ground anchors and mast base. This effect was studied by varying the shear wave velocity of the traveling wave corresponding to different degrees of soil stiffness and observing the general trends of selected response indicators. The three towers showed sensitivity to asynchronous shaking of their ground supports. More severe structural response was obtained for softer soil conditions, and the mast showed sensitivity even for relatively stiff soils. The effects of considering or excluding the structural damping and the vertical component of ground motion were also separately investigated and both factors were found to affect the response indicators significantly.
Get full access to this article
View all available purchase options and get full access to this article.
References
ADINA R&D, Inc. (2004a). “ADINA Systems 8.2 release notes.” Watertown, Mass.
ADINA R&D, Inc. (2004b). “ADINA user interface command reference manual, Vol. I: ADINA model definition.” Rep. ARD 04-2, Watertown, Mass.
ADINA R&D, Inc. (2004c). “ADINA user interface command reference manual, Volume IV: Display processing.” Rep. ARD 04-5, Watertown, Mass.
ADINA R&D, Inc. (2004d). “Theory and modeling guide, Volume I: ADINA.” Rep. ARD 04-7, Watertown, Mass.
Amiri, G. G. (1997). “Seismic sensitivity of tall guyed telecommunication towers.” Ph.D. thesis, Dept. of Civil Engineering and Applied Mechanics, McGill Univ., Montreal, QC, Canada.
Faridafshin, F. (2006). “Seismic investigation of tall guyed telecommunication towers.” MS thesis, Dept. of Applied Mechanics, Chalmers Univ. of Technology, Gothenburg, Sweden.
Guevara, E. I., and McClure, G. (1993). “Nonlinear seismic response of antenna-supporting structures.” Comput. Struct., 47(4/5), 711–724.
Harichandran, R. S. (1999). “Spatial variation of earthquake ground motion. What is it, how do we model it, and what are its engineering implications?” Dept. of Civil and Environmental Engineering, Michigan State Univ., East Lansing, Mich.
International Association for Shell and Spatial Structures (IASS). (1981). “Recommendations for guyed masts.” Working Group No. 4, Madrid, Spain.
Lupoi, A., Franchin, P., Pinto, P. E., and Monti, G. (2005). “Seismic design of bridges accounting for spatial variability of ground motion.” Earthquake Eng. Struct. Dyn., 34, 327–348.
Madugula, M. K. S., ed. (2002). Dynamic response of lattice towers and guyed masts, ASCE, Reston, Va.
McClure, G. (1999). “Earthquake-resistant design of towers.” Proc., Meeting of IASS Working Group 4 on Masts and Towers.
McClure, G., and Guevara, E. I. (1994). “Seismic behavior of tall guyed telecommunication towers.” Proc. IASS-ASCE Int. Symp. 1994, ASCE Structures Congress XII, ASCE, Reston, Va., 259–268.
National Research Council of Canada. (2005). National building code of Canada 2005, Ottawa.
Newmark, N. M., and Hall, W. J. (1969). “Seismic design criteria for nuclear power plants.” J. Power Div., 99(2), 287–303.
Pacific Earthquake Engineering Research Center (PEER). (2005). “PEER strong motion database.” PEER, Berkeley, Calif., http://peer.berkeley.edu/smcat/index.html (Sept. 10 2005 ).
Smith, B. W. (2007). Communication structures, Thomas Telford Ltd., London.
Yu, A.-T. (1952). “Vibration damping of stranded cable.” Proc. Soc. Exp. Stress Anal., 9(2), 141–158.
Information & Authors
Information
Published In
Copyright
© 2008 ASCE.
History
Received: Oct 9, 2007
Accepted: Dec 10, 2007
Published online: Aug 1, 2008
Published in print: Aug 2008
Notes
Note. Associate Editor: Amjad J. Aref
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.