【摘要】 以甘肃省庆阳体育馆工程为背景,利用大型有限元分析软件ANSYS对有、无下部结构的复杂空间网壳进行了动力特性分析;对整体结构在三维EL-Centro波作用下进行了动力时程分析;同时考虑不同阻尼比和地震波对整体结构抗震性能的影响.结果表明,考虑下部结构作用时,屋盖结构的位移显著增大,部分节点位移增幅达50%,因此,实际工程设计时应充分考虑整体协同工作对大跨复杂空间结构整体性能的影响.更多还原

【Abstract】 Take Qingyang gymnasium in Gansu province as study background in this paper.Using finite element software of ANSYS program,the complex spatial shell with sub-structure or not is analyzed under natural vibration;Dynamic response under the effect of 3-dimension El-Centro wave and Taft wave is analyzed;and analyze the influence of different damping radio,different seismic input to its overall performance.It is shown,when considering the interaction between lattice shell and substructure the joint displacement of the reaf structure are enlarged nearly 50%.Therefer,We could consider the fluencies of cooperative performance to large-span complex spatial structure in the structural design.更多还原