摘要
分析了某室内游乐中心中央游乐大厅屋盖的建筑造型,利用数值逆吊法实现自由曲面屋盖的找形,提出四种结构体系并对其进行初步对比分析,确定采用各方面性能较好的微曲面网架。采用有限元软件对结构体系在各荷载工况和组合下进行了静力分析及动力分析,得到了结构的受力、变形和振型特点,通过将屋盖加入整体结构进行对比分析,保证屋盖设计的精准及安全。
The architectural modeling of the amusement central hall roof of an indoor amusement center was studied,and the form-finding of the free-form surface roof was conducted with the numerical inverse hanging method. Four kinds of structural systems were presented and preliminary analysis and comparison were carried out,and a less-curved surface grid with better behavior in all aspects was adopted. Static analysis and dynamic analysis were conducted respectively for the less-curved surface grid under different load combinations with finite element software,thus the characteristics of force,deformation and vibration mode of the stucture were obtained. Furthermore,integral assembly analysis considering the interaction of the upper roof and the lower frame was conducted to guarantee the accuracy and safety of the roof design.
出处
《建筑结构》
CSCD
北大核心
2015年第16期30-34,共5页
Building Structure
基金
天津市建设系统科学技术发展计划(2014-03)
关键词
数值逆吊法
自由曲面找形
微曲面网架
静动力分析
整装分析
numerical inverse hanging method
free-form surface form-finding
less-curved surface grid
static analysis and dynamic analysis
integral assembly analysis
