摘要
沈阳星摩尔购物广场亮窗钢结构由单层网壳及树形支承柱构成。单层网壳为复杂的空间曲面,平面尺寸长约285m,宽约200m。网壳边界较多,周边均与混凝土结构交接,温度作用对结构设计起控制作用。通过采用弹性支座,在温度影响最为不利的地方设置一道温度缝,不仅大大降低了温度作用下的支座反力,同时将支座位移也控制在合理范围内。弹性屈曲及弹塑性稳定分析表明,该网壳结构具有较高的屈曲荷载和稳定承载力。
Steel structure of Shenyang Star Mall Plaza Skylight is composed of single-layer latticed shell and dentritic columns.The single-layer latticed shell is a complex spatial surface which is 285m long and 200m wide.There are many boundaries of shell structure and they are connected with concrete structures,and the temperature action controls the steel structural design.By using elastic supports,together with a temperature joint located at the most effective position,structural reaction forces under temperature action were greatly reduced,and support displacements were also controlled within reasonable limits.Based on elastic buckling and elastic-plastic stability analysis,it is found that the shell structure has a higher buckling load and ultimate load carrying capacity.
出处
《建筑结构》
CSCD
北大核心
2011年第5期68-72,107,共6页
Building Structure
关键词
亮窗
单层网壳
温度作用
弹性支座
稳定
skylight
single-layer latticed shell
temperature action
elastic support
stability
