某深基坑围护结构的圈梁效应研究  

Studying on ring beam effect in preservation structures of one deep foundation pit

作　　者：王森[1] 宋卫东[1] 王沛[1] 

机构地区：[1]北京科技大学土木与环境工程学院

出　　处：《山西建筑》2007年第20期1-2,共2页Shanxi Architecture

基　　金：教育部"新世纪优秀人才支持计划"资助项目(项目编号:NCET-04-0102)

摘　　要：针对圈梁在基坑支护结构中的作用建立有限元模型并提出合理的计算假设,结合工程实例采用大型有限元软件ANSYS对支护结构有无圈梁以及改变圈梁刚度等进行数值模拟分析,讨论了圈梁和支护桩的内力及变形情况,得出支护桩的变形随圈梁的设置以及圈梁的刚度增大而减小等结论。According to the roles of ring beam acted in preservation structures of foundation pit finite element model is established. Reasonable hypothesis is proposed for calculation. Combined with practical work utilizing ANSYS numerical simulation analysis is made on preservation structure with or without ring beam and the situations with various rigidities. The internal force and deformation status of ring beam and remining pile are discussed. Analysis show the deformation of retaining beam reduces with increase of the rigidity of ring beam.

关 键 词：圈梁 圈梁刚度 支护桩 弹性地基梁法 ANSYS 

分 类 号：TU463[建筑科学—结构工程]