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北京将台冬季花园采用复杂的杂交结构体系,其中屋面网壳部分可以视作拱壳杂交结构.近年来世界各地地震的频发使得空间结构的动力稳定问题亟待解决.本文对冬季花园建立了修正的有限元模型,通过不同峰值加速度地震作用下的非线性动力时程分析,研究了该模型在一条天然地震波作用下的动力稳定性能.结果表明,结构的动力稳定临界荷载超过了规范规定的最大值,可以认为结构的动力稳定性良好.
BeijingTaipei winter garden using complex hybrid architecture, in which part of the roof can be regarded as hybrid shell arch structure.In recent years, frequent earthquakes in the world so that the spatial structure of the dynamic stability issues to be solved.This paper established a revision of the winter garden , The dynamic stability of the model under a natural seismic wave is studied through nonlinear dynamic time history analysis under different peak acceleration.The results show that the dynamic stability critical load of the structure exceeds the maximum Value, it can be considered that the dynamic stability of the structure is good.