基于有限元模拟的大型体育馆原有结构拆除技术研究——以上海游泳馆为案例  

Study on Demolition Techniques for Original Structures in Large Sports Stadiums Based on Finite Element Simulation-A Case Study of Shanghai Natatorium

作　　者：吕帅灵 LÜShuailing(Shanghai Construction Group Co.,Ltd.,Shanghai 200080,China)

机构地区：[1]上海建工集团股份有限公司,上海200080

出　　处：《建筑施工》2024年第9期1442-1446,共5页Building Construction

基　　金：上海建工集团重点科研课题(21JCSF-14)。

摘　　要：随着大型公共建筑使用年限的临近,越来越多的建筑物需要进行更新改造。上海游泳馆的改建按照设计要求结构拆除至±0 m后新建,通过技术策划划分了3道结构拆除施工工况;利用三维激光扫描技术,高精度地建立了现有结构的BIM和拆除阶段的有限元计算模型,利用ANSYS软件对原有结构模型进行了每道拆除工况下不利点的计算分析,计算结果表明拆除工况是安全的;工况的划分与模拟计算优化了拆除施工工艺,为上海游泳馆的拆除施工提供了技术支撑。As the service life of large public buildings nears its end,a growing number of structures require updating and renovating.The Shanghai Natatorium reconstruction project involves demolishing the structure to±0 m according to design specifications.Through technical planning,three structural demolition conditions are identified.High-precision 3D laser scanning technology is used to establish a BIM model of the existing structure and a finite element model for the demolition stage.ANSYS software is employed to calculate and analyze the critical points under each demolition condition of the original structure.The results indicate that the demolition process is safe.The division of demolition conditions and simulation calculations optimize the demolition process,providing technical support for the Shanghai Natatorium demolition project.

关 键 词：城市更新 原有结构拆除 三维扫描技术 有限元计算 施工优化 

分 类 号：TU746[建筑科学—建筑技术科学]