The project in Zhuhai is composed of a framework,core cylinder,and double-layer cross truss structural sys-tem.It adopts a reinforcement method that involves laying subgrade boxes on the basement ceiling,using construction techniques such as assembling some components on the ground before lifting them,and at the same time,strictly planning the routes for the crawler cranes.Carrying out steel structure lifting on the existing structure significantly influences the lower concrete structure.The MIDAS GEN finite element analysis software is used to conduct finite element analysis on the cracks and stress changes of the lower concrete structure,simulating the entire construction process of the crawler crane.The analysis results show that the method of laying subgrade boxes on the basement ceiling can effectively reduce the maxi-mum deformation and stress of the lower concrete structure,meeting the national standard requirements.
关键词
高层建筑/钢结构/履带吊/楼面板/路基箱/有限元分析
Key words
high-rise building/steel structure/crawler crane/floor panel/subgrade box/finite element analysis
维普
万方数据