Dynamic Stability of Large-Span Suspen-Domessubjected to Seismic Excitations

Hui Juan Liu; Lu Feng Yang; Yong Feng Luo

doi:10.4028/www.scientific.net/AMR.378-379.209

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 378-379Dynamic Stability of Large-Span...

Dynamic Stability of Large-Span Suspen-Domessubjected to Seismic Excitations

Abstract:

Dynamic stability of suspen-domes is analyzed in the paper. Theoretical investigation is conducted based on the Lypumov dynamic stability theory. Based on B-R criterion, an improved method to evaluate the dynamic stability of suspen-domes is proposed. According to the method and time-history response curves, the dynamic stability of the suspen-domes is evaluated under horizontal seismic excitations. The dynamic stability characteristics, stability mode and cable mechanical behavior of the suspen-domes with different rise-span ratios are analyzed. The results show that the effect of the rise-span ratios on the dynamic stability is different. When the exciting acceleration approaches the critical point, some cables may relax, but they may be tensed again.

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Periodical:

Advanced Materials Research (Volumes 378-379)

Pages:

209-212

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.378-379.209

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Online since:

October 2011

Authors:

Hui Juan Liu, Lu Feng Yang, Yong Feng Luo

Keywords:

Dynamic Stability, Lyapunov’s Method, Seismic Excitation, Suspen-Dome, Time-History Response

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