摘要
弧形软钢耗能器(CMSD)是弯折为弧形的矩形钢板,在与木构架共同作用时,其受力均匀,耗能能力强,且具有制作工艺简单、经济性好等优点。通过理论分析并借助有限元分析软件ABAQUS,考虑钢材本构模型的非线性,建立了弧形耗能器的非线性有限元计算模型,对耗能器进行参数化的数值模拟;在此基础上对安装这种弧形耗能器的常州大陆饭店超限木结构建筑进行了地震反应分析。研究结果表明:这种耗能器具有良好的滞回性能和稳定的耗能特性,对于木结构抗震性能的增强,效果显著。
Curved mild steel damper （CMSD） was a rectangular steel plate with arc-shape.When used in timber structure it had even stress distribution and strong energy dissipation capacity,as well as the advantages of simple productive technique and low cost.A non-linear finite element calculation model of the damper was established by considering the nonlinear constitutive relationship of steel,then numerical simulation was made and theoretical analysis was completed by ABAQUS software.Finally,the seismic responses of Changzhou Mainland Hotel which is an ultra limit timber structure with CMSD were calculated.Results showed that the damper had favorable hysteretic performances and stable energy dissipation capacity,thus it could significantly enhance the seismic performance of timber structure.
出处
《南京工业大学学报（自然科学版）》
CAS
北大核心
2014年第2期112-117,共6页
Journal of Nanjing Tech University(Natural Science Edition)
基金
国家科技支撑计划(2009BAJ28B02)
关键词
木结构抗震
弧形软钢耗能器
非线性有限元分析
耗能性能
seismic performance of timber structure
curved mild steel damper
nonlinear finite element analysis
energy dissipation capacity
