Analysis of Variable-stiffness Design on Piled Raft Foundation with FEM
[1]GUO Yuancheng,ZHAO Xuyang,ZHANG Sihua.Analysis of Variable-stiffness Design on Piled Raft Foundation with FEM[J].Journal of Zhengzhou University (Engineering Science),2010,31(01):25-.
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
31
Number of periods:
2010 01
Page number:
25-
Column:
Public date:
2010-01-30
- Title:
- Analysis of Variable-stiffness Design on Piled Raft Foundation with FEM
- Keywords:
- civil construction design; variable—stiffness design; numerical simulation; piled raft foundation; differential settlement
- CLC:
- -
- DOI:
- -
- Abstract:
- The dish—shaped settlement curves are often induced in piled raft foundations．For reducing thedifferential settlement occurring in this kind of foundations，a simple numerical simulation model is presentedin this paper．In this model，piles are treated as springs and the stiffness of the piles is decided according tothe Q—s curves of capacity test．To decrease the differential settlement，three analysis methods are employed，which are horizontal variable-stiffness design method，vertical variable．stiffness design method and dimensionalvariable—stiffness design method．Comparisons about settlement are made between the equivalent-stiffness de—sign method and other variable—stiffness design method．The results indicate that the dimensional variable—stiffness design method is effective to reduce the differential settlement and to economize the building materialsconsumed．
- References:
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Last Update:
1900-01-01