Study on three-stage analysis of shallow masonry structure affected by adjacent excavation
The paper analyzes shallow masonry structure affected by adjacent excavation by applying three-stage analysis method,and predicts the structure deformation and damage risks with numerical simulation technology.Based on the foun-dation structure model,load structure model and separated masonry model,it evaluates the impact of the foundation con-struction upon adjacent buildings.The crack width and principal strain are used as the major damage evaluation indexes,the damage grade is divided into 5 grades according to BRE and Son methods.Taking the foundation analysis of the resi-dential building No.3 in the project as an example,the results show that the foundation excavation will lead to additional stress and deformation of adjacent buildings,which will influence their safety and stability.The research results provide as scientific basis for engineering practice and help to evaluate the existing building deformation and damage risks in similar project.
NETL
NSTL
万方数据
