摘要
采用自由振动法测试和子空间迭代法分析网架结构的动力特性，并用增加钢材质量密度的方法来考虑由于混凝土屋面板的存在对网架结构质量的增加，求解网架的自振频率和振型。
Dynamic behavior of spaced truss is tested and analysed using free vibration and sub-space iteration methods respectively. The mass of concrete slab added to spaced truss structure is considered by using increasement the mass density of steel instead. The natural frequency andmode of vibration of spaced truss calculated are coincided well with those of testing.
出处
《工业建筑》
EI
CSCD
北大核心
1996年第11期8-10,共3页
Industrial Construction
关键词
网架结构
动力特性
自由振动法
测试
spaced truss
dynamic behavior , free vibration method
sub-space iteration method
