Effects of site factors on the performance of rigid-pile composite foundation in tall buildings

被引：0

作者：

Han, Xiao-Lei ^{[1
,2
]}

Li, Yao-Kun ^{[1
]}

Ji, Jing ^{[1
,2
]}

Luo, Fan ^{[1
]}

机构：

[1] School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, China

[2] State Key Laboratory of Subtropical Architecture Science, South China University of Technology, Guangzhou, China

来源：

Open Civil Engineering Journal | 2015年 / 8卷 / 01期

关键词：

Rigid structures - Pile foundations - Piles;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Values of site factors in numerical simulation can have profound effects on the calculation accuracy. In order to fully understand the performance of rigid-pile composite foundation in tall buildings, this article set up an overall FEA model of a 25-storey frame-tube structure by considering the interaction of superstructure, foundation and ground. Thereafter, a detailed parametric study was performed by changing values of different key site factors. These parameters include: Ground soil range, distance of neighboring buildings and deformation modulus of cushion. The results show that 1) Ground soil range has a great influence on the stress and settlement of raft, the effective influence range is 2-3 times of the raft dimension; 2) Influence of neighboring buildings on the stress and settlement of the raft can be neglected; 3) With the increase of cushion modulus, the raft stress increases while the settlement decreases, an optimal cushion modulus is recommended to be 20-40MPa. © Han et al.; Licensee Bentham Open

引用

页码：71 / 77