摘要
针对具有楼板不连续和各层抗侧移刚度变化不均匀等特点的厂房,建立针对性的结构有限元模型。通过模态分析发现,该结构前三阶自振周期数值接近且后两阶阵型具有扭转特征;通过模拟地震时程分析,找出结构位移响应规律,从而有针对性地布置消能支撑,并分析了该方案的减震效果。
Aiming at plant factory building,it is pointed out that there are some problems existing in the building such as that the floor slab is discontinuous,with the resistance lateral displacement stiffness of different layers heterogeneous changed after analysis. The finite element model is established. The results of modal analysis show that the first three natural vibration period are closed and the latter two vibration modes have torsion effect. After a seismic time history analysis is performed by large mass method to obtain displacement deformation regularity,the energy dissipation brace is arranged,the damping effect is analyzed.
出处
《世界科技研究与发展》
CSCD
2015年第5期546-549,共4页
World Sci-Tech R&D
关键词
多层钢框架
水平地震作用
时程分析
消能支撑
减震设计
multistory steel frames
horizontal seismic action
time history analysis
energy dissipation brace
aseismatic design
