单元网架的动力特性测试及分析  

TESTS AND ANALYSIS FOR THE DYNAMIC BEHAVIOR OF UNIT TRUSS

作　　者：徐德新[1,2] 杨绪佐[1,2] 田建军 范振中[1,2] 

机构地区：[1]武汉水利电力大学 [2]中南电力设计院

出　　处：《工业建筑》1996年第11期8-10,共3页Industrial Construction

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.

关 键 词：网架结构 动力特性 自由振动法 测试 

分 类 号：TU356.01[建筑科学—结构工程]