[1]郭院成,王会杰,张四化..复合地基基础空间变刚度调平设计方法的数值模拟[J].郑州大学学报(工学版),2008,29(03):126-128.[doi:10.3969/j.issn.1671-6833.2008.03.032]
　GUO Yuancheng,Wang Huijie,Zhang Sihua.Numerical simulation of spatial variable stiffness leveling design method of composite foundation[J].Journal of Zhengzhou University (Engineering Science),2008,29(03):126-128.[doi:10.3969/j.issn.1671-6833.2008.03.032]

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复合地基基础空间变刚度调平设计方法的数值模拟()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

29卷

期数:

2008年03期

页码:

126-128

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Numerical simulation of spatial variable stiffness leveling design method of composite foundation

作者:

郭院成; 王会杰; 张四化.

郑州大学,土木工程学院,河南,郑州,450001, 郑州大学,土木工程学院,河南,郑州,450001, 郑州大学,土木工程学院,河南,郑州,450001

Author(s):

GUO Yuancheng; Wang Huijie; Zhang Sihua

关键词:

地基基础;  沉降变形;  变刚度调平设计;  数值模拟;  设计原则

Keywords:

foundation foundations;  sedimentation deformation;  Variable stiffness leveling design;  numerical simulation;  Design principles

DOI:

10.3969/j.issn.1671-6833.2008.03.032

文献标志码:

A

摘要:

基于地基基础支承刚度与上部荷载分布特征相对应的原则,考虑地基中的应力场、应变场的分布,对地基基础的空间变刚度设计方法进行了数值分析.建立复合地基基础的三维有限元模型,以地基变形模量的变化来反应地基的支承刚度的空间变化,讨论地基支承刚度空间变化时,基础沉降等值线的分布规律,验证了地基基础空间变刚度对减少基础沉降差,改善建筑结构的受力模式,减小筏板内力和厚度、降低上部结构次应力具有显著效应.

Abstract:

Based on the principle that the supporting stiffness of the foundation corresponds to the distribution characteristics of the upper load, and considering the distribution of stress field and strain field in the foundation, the spatial stiffness design method of the foundation is numerically analyzed. The three-dimensional finite element model of composite foundation is established, and the spatial change of supporting stiffness of foundation is reflected by the change of deformation modulus of foundation, and the distribution law of foundation settlement contour when discussing the spatial change of foundation support stiffness verifies that the spatial stiffness of foundation has a significant effect on reducing the settlement difference of foundation, improving the force mode of building structure, reducing the internal force and thickness of raft and reducing the secondary stress of the superstructure.

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