Three Dimensional Seismic Response Analyses on the Isolated Spatial Beam String Structure
Three dimensional seismic responses of an isolated spatial beam string structure are studied by applying the non-linear finite element theory. The filtering effect of the main structure, which amplifies the ground input, is investigated. The results indicate that the vertical rare earthquake has great influence on the isolated spatial beam string structure, and stresses of cables, frames and slab shells under vertical rare earthquake are all much greater than that under gravity load. Results of non-linear time history analysis show that elements’ stresses are in elastic stage, thus the spatial beam string structure with isolation keeps safe under rare earthquake.
N. Zhao and Y. Jiang, "Three Dimensional Seismic Response Analyses on the Isolated Spatial Beam String Structure", Advanced Materials Research, Vols. 255-260, pp. 2526-2531, 2011