| 统一强度理论在湿陷性黄土-桩-上部结构共同作用分析中的应用 |
| |
| 引用本文： | 熊仲明,王社良,李小健,俞茂宏. 统一强度理论在湿陷性黄土-桩-上部结构共同作用分析中的应用[J]. 土木工程学报, 2005, 38(9): 103-108 |
| |
| 作者姓名： | 熊仲明 王社良 李小健 俞茂宏 |
| |
| 作者单位： | 1. 西安建筑科技大学,陕西,西安,710055
2. 西安交通大学,陕西,西安,710049 |
| |
| 基金项目： | 博士后基金资助，西安建筑科技大学青年基金资助 |
| |
| 摘 要： | 采用统一强度理论,用一种新的模型来模拟湿陷性黄土—桩—上部结构共同作用地基的非线性,同时在桩—土接触面上设置接触单元模拟其间的接触非线性。工程算例结果表明在强震作用下,湿陷性黄土—桩间的非线性对群桩基础的动力相互作用以及上部结构均有较明显的影响,其上部结构的位移反应及层间剪力要比线性体系产生的结果大,并且考虑共同作用后,结构的动力特性也发生变化,加速度、位移随着地基土软弱程度的增加反映出越来越接近“K”字型的特征。
|
| 关 键 词： | 统一强度准则 湿陷性黄土 共同作用 |
| 文章编号： | 1000-131X(2005)09-0103-06 |
| 修稿时间： | 2004-02-24 |
APPLICATION OF THE UNIFIED STRENTH THEORY TO SUPERSTRUCTURE PILE SOIL INTERACTION IN COLLAPSIBLE LOESS |
| |
| Xiong Zhongming,Wang Sheliang,Li Xiaojian,Yu Maohong. APPLICATION OF THE UNIFIED STRENTH THEORY TO SUPERSTRUCTURE PILE SOIL INTERACTION IN COLLAPSIBLE LOESS[J]. China Civil Engineering Journal, 2005, 38(9): 103-108 |
| |
| Authors: | Xiong Zhongming Wang Sheliang Li Xiaojian Yu Maohong |
| |
| Affiliation: | Xiong Zhongming~1 Wang Sheliang~1 Li Xiaojian~1 Yu Maohong~2 |
| |
| Abstract: | A new model of the unified strength theory for modeling the nonlinerity of superstrucoure-pile-collapsible loess intraction is taken into account,and the interface element is employed to model the interface behavior between soil and pile material in collapsible loess. The result of calculation shows that the effects of the nonlinear behavior between soil-pile are evident for dynamic interaction of pile group and the upper structure under seismic loading,and that the displacement response and the shear between stories of the upper structure is larger than that in linearly behaving soil. The simulation results also indicate that the distribution of displacement and acceleration of the structure is different from the norm,in that a "K" shape distribution is observed,especially when the soil softness is increased. |
| |
| Keywords: | unified strength criterion collapsible loess interaction |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
