基于参数化建模的石笼幕墙抗震性能有限元分析  

Finite element analysis of seismic performance for gabion curtain walls based onparametric modeling

作　　者：李寅斌 李建辉 魏越 王超 孙超 刘丽 Li Yinbin;Li Jianhui;Wei Yue;Wang Chao;Sun Chao;Liu Li(China Academy of Building Research,Beijing 100013,China;National Engineering Research Center of Building Technology,Beijing 100013,China)

机构地区：[1]中国建筑科学研究院有限公司,北京100013 [2]国家工程技术研究中心,北京100013

出　　处：《建筑科学》2024年第11期74-83,共10页Building Science

基　　金：中国建筑科学研究院有限公司青年基金项目(20210122331030006);中国建筑科学研究院有限公司建筑设计院科研项目(20220118281390134)。

摘　　要：石笼生态格网结构作为一种新型生态格网结构,具有良好的变形性能、整体性强、绿色环保和工程造价低等优势。石笼结构已广泛应用于水利工程、公路、铁路工程、堤防的保护工程中,较好地实现了工程结构与生态环境的有机结合,且石笼作为装饰幕墙应用于建筑立面也有较好的前景。本文通过有限元分析的方式对单元式和框架式两种类型石笼幕墙进行了系统研究,结果表明:(1)由于单元式的石笼幕墙分格单独受力,其在各地震工况下的最大变形均小于框架式幕墙,抗震性能更优;(2)拉结筋布置对单元式石笼幕墙的抗震性能影响不明显,对分隔尺寸越大的框架式幕墙影响效果越明显;(3)增大石笼的厚度与宽度均会增加各地震工况下的最大变形。研究成果可为石笼幕墙在建筑结构中的应用提供技术支撑。The gabion ecological grid structure,as a new type of ecological grid structure,has advantages such as good deformation performance,strong integrity,green environmental protection,and low construction cost.The gabion structure has been widely used in water conservancy projects,roads,railway projects,and protective engineering of dikes,realizing the organic combination of engineering structures and ecological environment.Gabions as decorative curtain walls have good prospects for application in building facades.This paper systematically studies the unit type and frame type gabion curtain walls through finite element analysis.The results show that:Due to the separate force bearing of the unitized gabion curtain wall,its maximum deformation under various seismic conditions is smaller than that of the frame type curtain wall,and its seismic performance is better.The arrangement of the tensile reinforcement has no obvious impact on the seismic performance of the unit type gabion curtain wall,and the effect on the frame type curtain wall with larger separation size is more significant.Increasing the thickness and width of the gabion will increase the maximum deformation under various seismic conditions.The research results can provide technical support for the application of gabion curtain walls in building structures.

关 键 词：石笼幕墙 单元式幕墙 框架式幕墙 抗震性能 

分 类 号：TU398[建筑科学—结构工程]