联方型单层球面网壳的地震响应

以40 m跨度的联方型单层球面网壳为分析对象,并以位移准则作为动力稳定性判别方法,分析了该网壳受地震作用下的动力响应,得到了联方型网壳结构达到失稳临界峰值后,继续施加荷载,网壳结构位移不会突增,不会因达到失稳临界值而突然倒塌的结论。

Seismic response of the lamella single-layer spherical lattice shell

Taking the 40 m span lamella single-layer spherical lattice shell as an example,the paper analyzes the dynamic response of the reticulated shells under the seismic action by using the displacement criterion as the discrimination method of the dynamic stability,draws a conclusion that the structural displacement of the reticulated shells does not increase,and the structure does not collapse because of reaching the instability critical value after the structure of the lamella lattice shell reaches the instability critical value and the loads were applied to it.