Estimating Seismic Energy in Structure with Wavelet Transform

Article Preview

Abstract:

This study proposed a wavelet method for estimating seismic energy in single-degree-of-freedom (SDOF) structure. With the recent development of wavelet-based procedures for structure seismic response, which the displacement and velocity of linear SDOF structure can be expressed with wavelet transform of acceleration process, it is easy to estimate seismic energy in SDOF linear structure, and strain, kinetic, damping energy and energy input based on wavelets introduced in a range of time and frequency assigned to the wavelet coefficient, Expressions have been derived for (i) the equation of motion. (ii)the wavelet coefficients of the response processes. By using these principles, a linear SDOF structure which subjected to 1988 LanCang-GenMa earthquake ground motions is analyzed, time-histories of strain, kinetic, damping energy and energy input for various ranges of frequencies are identified.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 163-167)

Pages:

3958-3963

Citation:

Online since:

December 2010

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Design code for antiseismic of structure. P. R. China National Standard, 2005: 28-30. In Chinese.

Google Scholar

[2] Honsner GW. Limit design of structures to resist earthquake. Proc. 1st word conf. Earthquake Eng. Berkeley, California, 1965; 5: 1-13.

Google Scholar

[3] Tembulkar J. M. and Nau J. M. Inelastic modeling and seismic energy dissipation. J. Struct. Div. ASCE, 113, 1987: 1373-1377.

DOI: 10.1061/(asce)0733-9445(1987)113:6(1373)

Google Scholar

[4] meiling Xiao, liaoyuan Ye, hongtie Zhao: Seismic response of MDOF systems by wavelet transform. Proceedings of the eighth international symposium on structural engineering for young experts. 2004: 579-588.

Google Scholar

[5] meiling Xiao, liaoyuan Ye:SDOF systems seismic dynamic reliability analysis based on odd exponent wavelet, The third international conference on earthquake engineering: New Frontier and research transformation. 2004: 370-374.

Google Scholar

[6] meiling Xiao, liaoyuan Ye:Seismic response of SDOF systems using odd exponent wavelet, Proceedings of the 18th Australasian conference on the mechanics of structures and materials (ACMSM18), Perth, Australia. 2004:533-538.

Google Scholar