Dynamic Stability of Large-Span Suspen-Domessubjected to Seismic Excitations
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.
Brendan Gan, Yu Gan and Y. Yu
H. J. Liu et al., "Dynamic Stability of Large-Span Suspen-Domessubjected to Seismic Excitations", Advanced Materials Research, Vols. 378-379, pp. 209-212, 2012