Dynamic Nonlinearity and Nonlinear Single-Degree-of-Freedom Model for Cable Net Glazing
Publication: Journal of Engineering Mechanics
Volume 139, Issue 10
Abstract
The nonlinear vibration differential equation and vibration frequency of cable net glazing subject to earthquake loading was determined, and a geometrically nonlinear single-degree-of-freedom model for cable net glazing was developed. The nonlinear response spectra were established, and nonlinear time history analysis with finite element (FE) models was conducted to verify them. The nonlinear vibration differential equation and frequency obtained as described in this paper provide a basis for the nonlinear single-degree-of-freedom model for cable net glazing. The analytical formula for the nonlinear frequency with a simplified expression is highly precise and convenient for use in engineering practice. For larger-amplitude seismic waves, the difference between the linear and nonlinear response spectra are more obvious. As the natural period of cable net glazing is always less than 2 s, the linear response spectra in the Chinese code for the seismic design of buildings can be used in the seismic design of cable net glazing as an approximation rather than the nonlinear response spectra of cable net glazing.
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Acknowledgments
This research was financially supported by the Natural Science Foundation of China under Grant Nos. 50908044, 51278117, and 51125031, State Key Laboratory of Subtropical Building Science of South China University of Technology under Grant No. 2011KA05, Jiang Su provincial Natural Science Foundation of China under Grant No. SBK201123270, and a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 139 • Issue 10 • October 2013
Pages: 1446 - 1459
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Apr 13, 2011
Accepted: Nov 29, 2012
Published online: Apr 3, 2013
Published in print: Oct 1, 2013
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