摘要
隔震结构设计中,通过设置隔震层延长结构自振周期,降低场地中水平地震能量输入到隔震层上部结构,从而提高结构抵抗水平地震作用的能力。隔震层不能隔离竖向地震,这种水平隔震而竖向不隔震的特点,在基于《建筑隔震设计标准》(GB/T 51408-2021)的隔震层、上部结构一体化直接设计方法中关于地震作用计算及抗震措施又会带来新的问题,实际工程应用中令结构设计师容易产生疑惑。将结合笔者在PKPM-GZ软件研发、咨询及实际工程应用中的思考和总结,对隔震结构设计中与竖向地震作用相关的几个典型问题进行研究和探讨,希望给结构设计师在类似的隔震结构项目设计与审查应用中带来参考。
In the design of seismically isolated structure,the isolation layer is set to prolong the natural vibration period of the structure,reduce the horizontal seismic energy input to the superstructure of the isolation layer in the site,and thus improve the ability of the structure to resist horizontal seismic action.The isolation layer cannot isolate vertical earthquakes.This feature of horizontal isolation without vertical isolation will bring new problems in the direct design method for the integration of isolation layer and superstructure based on the Standard for seismic isolation design of building.The calculation of seismic action and seismic measures will easily cause confusion to the structural designers in practical engineering applications.This paper will combine the author's thinking and summary in the development,consultation and practical engineering application of PKPM-GZ software to study and discuss several typical problems related to vertical seismic action in the design of isolated structures,hoping to provide a reference for structural designers in the design and review of similar isolated structures.
作者
苏欣
肖容
郭耀
王美琪
刘珈辰
徐煜然
黄胜江
SU Xin;XIAO Rong;GUO Yao;WANG Meiqi;LIU Jiacheng;XU Yuran;HUANG Shengjiang(Beijing Glory PKPM Technology Co.,Ltd.,Shenzhen Branch,Shenzhen 518000,China;Kunming Architectural Design and Research Institute Co.,Ltd.,Kunming 650100,China)
出处
《建筑结构》
北大核心
2023年第S01期1005-1011,共7页
Building Structure
基金
住房和城乡建设部研究开发项目“自主知识产权的BIM三维图形平台开发及生态建设”(2021-K-093)
关键词
隔震结构
PKPM-GZ
一体化直接设计
竖向地震
seismically isolated structure
PKPM-GZ
integrated direct design
vertical earthquake
