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| 建筑物地基不均匀震陷有限元时程分析方法 | |
| 引用本文： | 孟上九,刘汉龙,袁晓铭,高玉峰. 建筑物地基不均匀震陷有限元时程分析方法[J]. 岩土力学, 2005, 26(1): 33-36 |
| 作者姓名： | 孟上九 刘汉龙 袁晓铭 高玉峰 |
| 作者单位： | 1. 河海大学 岩土工程研究所，江苏 南京 210098；2.中国地震局工程力学研究所，黑龙江 哈尔滨 150080 |
| 基金项目： | 国家自然科学基金(No.59978049)，地震学联合基金(No.104137)资助项目。 |
| 摘 要： | 根据建筑物不均匀震陷发生机制，提出了建筑物不均匀震陷二维有限元分析方法。采用了不规则荷载下土的残余应变模型及土体逐步软化模型，考虑了土、结构及地震动波形对不均匀震陷的协同作用效果，实现了对建筑物不均匀震陷的时程分析，并通过大型振动台试验对方法的可靠度进行了检验。 |
| 关 键 词： | 地基 不均匀震陷 有限元法 时程分析 |
| 文章编号： | 1000-7598-(2005)01-0033-04 |
| 收稿时间： | 2003-11-11 |
| 修稿时间： | 2003-11-11 |
Time-travel analytical method for earthquake-induced differential settlement of building foundation using FEM |
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| MENG Shang-jiu,LIU Han-long,YUAN Xiao-ming,GAO Yu-feng. Time-travel analytical method for earthquake-induced differential settlement of building foundation using FEM[J]. Rock and Soil Mechanics, 2005, 26(1): 33-36 | |
| Authors: | MENG Shang-jiu LIU Han-long YUAN Xiao-ming GAO Yu-feng |
| Affiliation: | 1. Geotechnical Institute of Hohai University, Najing 210098, China; 2. Institute of Engineering Mechanics, China Seismological Bureau, Harbin 150080, China |
| Abstract: | Based on the mechanism of earthquake-induced differential settlements of buildings, an analytical method of the two-dimensional FEM for estimating the earthquake-induced differential settlement of buildings is presented. Using the model of residual strain of soils under irregular loading and progressively softening model, the method can consider the combined action of the soil, structure and seismic wave more reasonably and can describe the process of the differential settlements of the buildings. The comparison results with large shaking table tests indicate that the new method is reliable. |
| Keywords: | subsoil earthquake-induced differential settlements FEM time-travel analysis |
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