摘要
针对工业厂房中框排架结构偏心、不规则的特点,以某火力发电厂主厂房为原型,建立整体结构的空间计算模型,分别进行模态分析和水平双向地震作用下的弹塑性时程分析,结合前期拟动力和伪静力试验研究,重点研究了该类结构的动力特性及整体的变形能力。研究结果表明:结构纵、横向刚度相差较大,扭转效应明显,且薄弱部位较多,在设计中应予以重视。
Because of the eccentricity and irregularity of the frame-bent structure for an industrial workshop,based on the prototype of the principal workshop of a thermal power plant,the spatial computational model of integral structure was established,modal analysis and elastoplastic time history analysis under two-directional horizontal earthquake were made. Combined with the former pseudo-dynamic experiment and quasi-static experiment,the dynamic properties and the spatial deformation performance were studied on emphasis. The result shows that the stiffness of longitudinal direction and the transverse direction is abrupt,which makes the torsional effect evidently, and the weak parts are more,which need attention in its design.
出处
《工业建筑》
CSCD
北大核心
2010年第7期31-35,共5页
Industrial Construction
基金
国家自然科学基金项目(50578129)
教育部博士点专项基金项目(20060703001)
关键词
框排架结构
弹塑性时程分析
双向偏心
不规则性
拟动力试验
frame-bent structure
elastoplastic time-history analysis
biaxial eccentric
irrcgularity
pseudo-dynamic experiment
