某组合结构厂房阻尼比分析  

Analysis on damping ratio of composite structure of factory

作　　者：范晓斌 Fan Xiaobin(Shanghai Electric Guokong Global Engineering Co.,Ltd.,Taiyuan 030000,China)

机构地区：[1]上海电气集团国控环球工程有限公司,山西太原030000

出　　处：《山西建筑》2020年第7期63-65,共3页Shanxi Architecture

摘　　要：为探讨组合结构体系中阻尼比选用,先运用MIDAS/GEN进行Pushover分析得到结构的薄弱位置,然后通过改变组合结构中钢结构层数分别建立4个三维空间模型,考虑不同材料对阻尼比的影响,并按照单一阻尼比和组阻尼比下分别计算的组合结构弹性阶段到弹塑性阶段情况下层间角位移,通过分析对比,基本摸清了该体系结构下阻尼比的取值范围,为类似结构在地震作用计算时所采用的阻尼比提出依据。In order to explore the selection of damping ratio in composite structure system,the MIDAS/GEN. Is used to perform Pushover analysis to obtain the weak part of the structure in this paper,and then the four 3D models are established in order to consider the effects of material on structure,single damping ratio and the group of damping ratios is introduced respectively to calculate elastic interstory angular displacement and elastic-plastic interstory angular displacement. The results of both methods are compared so that the damping ratio of the composite structure can be estimated,which provides a foundation for similar structures in earthquake action calculation of damping ratio.

关 键 词：组合结构 阻尼比 层间角位移 弹塑性阶段 

分 类 号：TU398[建筑科学—结构工程]