摘要
提出了一种计算上承式钢板梁桥动力特性的方法．文中分别采用梁段有限单元、空间杆元计算上承式钢板梁桥中主梁、联结系的刚度矩阵与质量矩阵，采用子空间迭代法求解特征方程。
In this paper,a m ethod for the analysis ofthe deck steelplate girder bridges is presented. The finite elem entm odelis developed by using finite beam ele- m ents to m odelthe m ain beam ofthe deck steelplate girderbridgesand space truss elem ents to m odel brace rods of the bridges. Based On m aterial and geonetric properties ofthe various bridge elem ent, stiffness and m ass m atri- ces are calculated. The subspace iteration m ethod is used to calaulate the eigen problem . The results coincide w ith the field testdata and can be used for policy m aking departm ents.
出处
《长沙铁道学院学报》
CSCD
1999年第3期70-74,共5页
Journal of Changsha Railway University
基金
铁道部科技司项目
关键词
钢板梁桥
自振频率
振型
有限元
上承式
steelplate girder
naturalfrequency
naturalm odes
finite elem entm ethod
