| Cone model for two surface foundations on layered soil |
| |
| 作者姓名： | 陈文化 |
| |
| 作者单位： | School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China |
| |
| 摘 要： | In this paper, the cone model is applied to the vibration analysis of two foundations on a layered soil half space. In the analysis, the total stress field in the subsoil is divided into the free-field and the scattering field. Seed＇s simplified method is adopted for the free-field analysis, while the cone model is proposed for analyzing the dynamic scattering stress wave field. The shear stress field and the compressive stress field in the layered stratum with two scattering sources are calculated by shear cone and compressive cone, respectively. Furthermore, the stress fields in the subsoil with two foundations are divided into six zones, and the P wave and S wave are analyzed in each zone. Numerical results are provided to illustrate features of the added stress field for two surface foundations under vertical and horizontal sinusoidal force excitation. The proposed cone model may be useful in handling some of the complex problems associated with multi-scattering sources.
|
| 关 键 词： | 分层地基 地基-建筑物相互作用 应力波 基础振动 锥形模型 |
| 文章编号： | 1671-3664（2006）02-0183-05 |
| 收稿时间： | 2005-10-27 |
| 修稿时间： | 2006-08-22 |
Cone model for two surface foundations on layered soil |
| |
| Wenhua Chen.Cone model for two surface foundations on layered soil[J].Earthquake Engineering and Engineering Vibration,2006,5(2):183-187. |
| |
| Authors: | Wenhua Chen |
| |
| Institution: | School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China |
| |
| Abstract: | In this paper, the cone model is applied to the vibration analysis of two foundations on a layered soil half space. In the
analysis, the total stress field in the subsoil is divided into the free-field and the scattering field. Seed’s simplified
method is adopted for the free-field analysis, while the cone model is proposed for analyzing the dynamic scattering stress
wave field. The shear stress field and the compressive stress field in the layered stratum with two scattering sources are
calculated by shear cone and compressive cone, respectively. Furthermore, the stress fields in the subsoil with two foundations
are divided into six zones, and the P wave and S wave are analyzed in each zone. Numerical results are provided to illustrate
features of the added stress field for two surface foundations under vertical and horizontal sinusoidal force excitation.
The proposed cone model may be useful in handling some of the complex problems associated with multi-scattering sources.
Supported by: National Natural Science Foundation of China Under Grant No.50678021 |
| |
| Keywords: | soil-structure interaction foundation vibration interaction of scattering sources cone model stress wave |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
