钢管桩在既有建筑基础托换中的应用  

Application of Steel-Pipe Pile in Foundation Underpinning for Existing Buildings

作　　者：黄民水[1,2,3] 邬毛志[1,2] 刘佳[1,2] 丁志强[1,2] 

机构地区：[1]华中科技大学土木工程与力学学院 [2]华中科技大学控制结构湖北省重点实验室,湖北武汉430074 [3]武汉工程大学交通研究中心,湖北武汉430073

出　　处：《华中科技大学学报（城市科学版）》2009年第4期36-39,共4页Journal of Huazhong University of Science and Technology

基　　金：武汉工程大学科学研究基金(13095081)

摘　　要：在对既有建筑进行改造时,施工场地有限,原有的基础仍要发挥作用,在这种条件下,采用钢管桩进行基础托换是最优的选择。本文首先对托换后的基础进行了沉降和水平位移验算,然后基于ANSYS建立了有限元模型并进行了分析,结果均满足规范要求。可以看出,在特定的条件下,采用钻孔钢管桩进行基础托换,经济上合理,技术上可行,具有较大的工程实用价值和理论研究意义。When reconstruction is carried on existing building, if the field is limited and intrinsic foundation has to work at the same time, steel-pipe pile is the best selection for foundation underpinning. In the paper, checking computations on the sedimentation and horizontal displacement are made through the foundation after underpinning firstly, then the finite element model is set up based on ANSYS and analysis is performed, all the results meet the code requirements. It can be seen that foundation underpinning with steel-pipe pile for existing building under special condition is feasible economically and technically, and it is of great engineering costs and theoretical significance.

关 键 词：基础托换 钢管桩 既有建筑 ANSYS 

分 类 号：TU473[建筑科学—结构工程]