新型高层装配式钢网格盒式结构动力特性与抗震性能分析  

Dynamic Characteristics and Seismic Performance Analysis of New High-rise Fabricated Steel Grid Box Structure

作　　者：肖同 马克俭[1,2] 卢亚琴 吴鹏程[1,2] XIAO Tong;MA Ke-jian;LU Ya-qin;WU Peng-cheng(Space Structures Research Center,Guizhou University,Guiyang Guizhou 550025,China;Key Laboratory of Structural Engineering of Guizhou Province,Guiyang Guizhou 550025,China)

机构地区：[1]贵州大学空间结构研究中心,贵州贵阳550025 [2]贵州省结构工程重点实验室,贵州贵阳550025

出　　处：《华北理工大学学报（自然科学版）》2022年第2期60-67,共8页Journal of North China University of Science and Technology：Natural Science Edition

基　　金：贵州省科技计划项目(黔科合基础[2018]1038);贵州大学引进人才科研项目(贵大人基合字(2016)16号)。

摘　　要：为了研究高层钢网格盒式结构的动力特性和抗震性能,运用有限元分析软件建立数值模型。分析了盒式结构在双向多遇地震作用下的模态、楼层位移和位移角,并对地震作用下盒式结构与常规框筒结构的动力特性与抗震性能进行对比。结果表明:地震作用下,盒式结构质量与刚度整体分布均匀,抗扭刚度较好;楼层位移与位移角均满足规范要求,结构抗侧刚度较好。相较于常规框筒结构,盒式结构的周期比、楼层位移、层剪力及层弯矩均比常规框筒结构较小,表明盒式结构的动力特性和抗震性能优于常规框筒结构;相同建筑面积下,盒式结构用钢量比常规框筒结构用钢量可减少19.8%,在高层和超高层中运用可取得良好的经济效益。In order to study the dynamic characteristics and seismic performance of high-rise steel grid box structure,a numerical model was established by using finite element analysis software.The mode,floor displacement and displacement angle of box structure under two-way frequent earthquake were analyzed,and the dynamic characteristics and seismic performance of box structure and conventional frame tube structure under earthquake were compared.The results show that the mass and stiffness of the box structure are uniformly distributed and the torsional stiffness is good under earthquake.The floor displacement and displacement angle meet the specification requirements,and the lateral stiffness of the structure is good.Compared with the conventional frame tube structure,the period ratio,floor displace ment,floor shear and floor bending moment of the box structure are smaller than those of the conventional frame tube structure,indicating that the dynamic characteristics and seismic performance of the box structure are better than those of the conventional frame tube structure;Under the same building area,the steel consumption of box structure is 19.8%lower than that of conventional frame tube structure.Good economic benefits can be obtained when it is used in high-rise and super high-rise buildings.

关 键 词：空腹夹层板 盒式结构 抗侧刚度 动力特性 抗震性能 

分 类 号：TU391[建筑科学—结构工程]