摘要
运用有限元程序,对某大学活动中心结构的整体和局部构件受力性能、薄弱部位及影响因素、大跨度屋盖对主体结构受力性能影响等问题进行了模拟分析。结果表明,结构具有扭转不规则和承载力突变特性,薄弱部位出现在错层部位、转角部位和弱连接部位;空旷框架部分存在着相对变形大和两向内力差异大现象,P-Δ效应明显;大跨度钢屋盖在水平力作用下对主体结构有不可忽视的影响。阐述了有关设计方法。
For a thorough understanding of the overall and local structural behaviors of a university student sports center, including weak parts and influence of large-span roof on the main structure, a finite element software are used to analyze the structure. The analysis result shows that the structure has torsion effect and the mutation of resistance ability. Weak parts appear in split levels, corners and weak links. Opening part of the framework has relatively large deformation and big difference of the forces in two orthogonal directions. The P-z3 effect is obvious. Influence of large-span on the main structure under horizontal seismic effect is not negligible. The specific design method is represented.
出处
《建筑结构》
CSCD
北大核心
2007年第10期27-29,13,共4页
Building Structure
关键词
大开洞不规则结构
结构分析
受力性能
设计方法
irregular structure with big openings
structural analysis
force behavior
design method
