摘要
钢筋混凝土框排架结构是我国工业厂房常用的结构型式。本文以某电厂结构为原型,采用ANSYS商用有限元软件研究横向框排架、纵向框架—剪力墙这种新型框排架结构的动力特性,并对其进行地震反应分析,研究结果表明:该类型结构在峰值50gal地震作用下,满足“小震不坏”的要求,但该类结构纵、横向刚度相差较大,造成扭转效应显著,建议增大横向框排架的刚度,以减少扭转效应。
Frame-bent structure was widely used in the industry works. A new-pattern frame-bent structure with frame-bent in the longitudinal direction and frame-shear wall in the transverse direction modal analysis and time-history method for seismic analysis were carried out by ANSYS FEA software. The result shown： this structure under peak acceleration with 50gal satisfied with the demand of seismic codes, but the stiffness of longitudinal direction and the transverse direction was abrupt. The stiffness of longitudinal direction should be reinforced to erase the torsion effect.
出处
《工程抗震与加固改造》
2005年第4期12-15,共4页
Earthquake Resistant Engineering and Retrofitting
基金
国家电力公司"十五"重点科研项目(60-Y2002-03-T04)
长安大学青年基金(04Q12)
关键词
框排架
动力特性
扭转
地震反应
frame-bent
dynamic properties
torsional factors
seismic response
