| The dynamic stability subjected to earthquake motion of single-layer reticulated domes was researched in detail with the method of full-range nonlinear dynamic response analysis in this dissertation, the main contents and achievements are shown as follows: 1, It is researched that the geometry specialty of single-layer reticulated domes, workout the corresponding macro and realized the automatic building model of single-layer reticulated shells.2, Calculated eighty four K8 and eighty four K6 pattern single-layer reticulated domes respectively ,analyzed the dynamic characteristics in terms of span and height to span, load, the condition of the support and so on, and draws the first frequency practicality designing chart.3, Let structure displacement as character variable introduce in strain energy rule proved the direct ratio of structure displacement to strain energy avoid search and conformation the V function and build the method of dynamic stability determinant, the method not only can apply geometry nonlinear but also double nonlinear analysis. Applied the method to analyze seventy one Kn pattern single-layer reticulate domes in this dissertation, It is revealed that dynamic stability behavior of elastics and plastics.4, Dynamic stability behavior of single-layer domes under horizontal, vertical and three dimensional EL-Centro are calculated respectively, it is shown that horizontal earthquake wave controls the dynamic stability critical load.5, To analyzed the single-layer reticulated domes of difference ratios of height to span and discover that the increment of the ratios of height to span, dynamic stability critical load decreases. And reviewed the effect material nonlinear , section, initial geometric imperfection, structure damp and so on.6, Considered the effect of support stiffness, drawer the effect curve of single-layer reticulated domes dynamic stability behavior and given the advice range of support stiffness.
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