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[1]王琴,陈隽,李杰.地下管线非一致地震激励振动台试验的三维有限元建模[J].建筑科学与工程学报,2008,25(03):47-53.
　WANG Qin,CHEN Jun,LI Jie.3-D Finite Element Modeling of Underground Pipeline Under Non- uniform Earthquake Excitation in Shaking Table Tests[J].Journal of Architecture and Civil Engineering,2008,25(03):47-53.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
25卷
期数:
2008年03期
页码:
47-53
栏目:
出版日期:
2008-09-20

文章信息/Info

Title:
3-D Finite Element Modeling of Underground Pipeline Under Non- uniform Earthquake Excitation in Shaking Table Tests
作者:
王琴1,2,陈隽1,李杰1
1.同济大学建筑工程系,上海200092;2.中冶南方工程技术有限公司,湖北武汉430223
Author(s):
WANG Qin1,2, CHEN Jun1, LI Jie1
1. Department of Architectural Engineering, Tongji University, Shanghai 200092, China; 2. WISDRI Engineering & Research Incorporation Ltd, Wuhan 430223, Hubei, China
关键词:
地下管线;  振动台试验;  土-结相互作用;  三维有限元建模;  非一致激励
Keywords:
underground pipeline;  shaking table test;  soil-structure interaction;  3-D finite elem-ent modeling;  non-uniform excitation
分类号:
TU279.76
DOI:
-
文献标志码:
A
摘要:
基于通用有限元软件ABAQUS,针对地下管线非一致地震激励振动台试验开展了三维有限元建模与分析。首先着重对模型箱的建模方法进行了探讨,采用Drucker-Prager模型考虑土体的非线性,并利用主从接触单元考虑土-结相互作用的非线性力学行为,然后将数值模拟结果与试验结果的自振频率、应变响应、加速度及位移响应进行对比。结果表明:所提出的分析模型和方法能够比较准确地模拟试验中土体和结构的反应及其相互作用,为地下管线的地震响应理论分析奠定了基础。
Abstract:
Based on the generalized finite element software ABAQUS, 3-D finite element modeling was carried out for the shaking table tests of underground pipeline under non-uniform earthquake excitation. Firstly, the modeling method of laminar shear box was emphatically discussed. The Drucker-Prager model was adopted to simulate the nonlinearity of the soil. The master-slave contact element was used for the nonlinear mechanical behavior of soil-structure interaction. Then, the comparison between numerical simulation results and test results agreed well in natural frequency, strain response, acceleration and displacement response. The results indicate that the analytical model and method proposed can be used to simulate the responses of soil and structure as well as soil-structure interaction, so as to further analyze the seismic responses of underground pipelines.

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备注/Memo

备注/Memo:
收稿日期:2008-04-14
基金项目:国家自然科学基金项目(50621062)
作者简介:王 琴(1983-),男,湖北天门人,同济大学工学硕士研究生,E-mail:wangqin7237@sina.com。
更新日期/Last Update: 2008-09-20