[1]冯小娟,吴炳军,胡 伟,等.多元复合地基的等效本构模型及三维地震响应研究[J].西安建筑科技大学学报:自然科学版,2013,45(01):10-17.[doi:10.15986/j.1006-7930.2013.01.003]
　FENG Xiao-juan,WU Bing-jun,HU Wei,et al.Research in equivalent constitutive relation and three directions seismic responses of multi-element composite foundation[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2013,45(01):10-17.[doi:10.15986/j.1006-7930.2013.01.003]
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多元复合地基的等效本构模型及三维地震响应研究()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
45
期数:
2013年01期
页码:
10-17
栏目:
出版日期:
2013-02-28

文章信息/Info

Title:
Research in equivalent constitutive relation and three directions seismic responses of multi-element composite foundation
文章编号:
1006-7930(2013)01-0010-08
作者:
冯小娟1; 吴炳军1; 胡 伟2; 张 频1; 寇宝明3
(1.西安建筑科技大学,陕西 西安 710055;2.海南大学,海南 570228;3.西安职业技术学院,陕西西安 710077)
Author(s):
FENG Xiao-juan1; WU Bing-jun1; HU Wei2; ZHANG Pin1; KOU Bao-ming3
(1.Xian University of Architecture & Technology, Xian 710055,China;2.University of Hainan, Hainan 570228,Chian;3.College of Xian Vocational and Technical, Xian 710077,China)
关键词:
多元复合地基; 横观各向同性体; 本构关系; 三维地震响应; 有限元
Keywords:
multi-element composite foundation;  transversely isotropic body;  constitutive relation;  3-d seismic response;  finite element
分类号:
TU470
DOI:
10.15986/j.1006-7930.2013.01.003
文献标志码:
A
摘要:
按照复合材料力学的处理方法将多元复合地基的桩-土体系作等效连续化处理,将其视为横观各向同性体,首次建立了多元复合地基桩土等效复合体的本构关系;基于大型有限元软件ABAQUS操作平台,采用有限元、无限元耦合的方法研究了多元复合地基的三维地震响应,结果表明:(1)等效复合体模型能很好地反映出多元复合地基的传力机理.(2)天然地基、多元复合地基和基础在地表的加速度傅氏谱均呈多峰型,对输入地震波均有滤波作用,且多元复合地基和基础的滤波作用更为显著.(3)褥垫层、筏板的增加能有效抑制地表加速度响应,但并非越厚越好,还要考虑建造的经济性.计算结果可为工程抗震设计提供参考
Abstract:
The equivalent continuous processing is done to multi-element composite foundation by composite material mechanics method, the composite foundation is studied as transversely isotropic body, and the constitutive relation of equivalent complex is established at first time. On the ABAQUS platform, the three direction seismic responses of multi-element composite foundation are studied by finite-infinite element coupling method. The results show that:(1)the model of equivalent complex can reflect the working mechanics of the multi-element composite foundation;(2)The accelerations flourier spectrum at earth surface of natural foundation, multi-element composite foundation and ground are multi-peak types, and all of them have filter action to input earthquake wave, and the actions of multi-element composite foundation and ground are stronger than that of the natural foundation, and the(3)cushion and raft can limit the acceleration responses at earth surface, but the effect does not increase with the depth of cushion and raft. The economical efficiency should be considered too. The results can provide reference for the seismic design of engineering

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备注/Memo

备注/Memo:
收稿日期:2012-03-26 修改稿日期:2013-01-05
基金项目:陕西省教育厅专项科研项目(08JK341);西安建筑科技大学基础基金项目(JC0821)
作者简介:冯小娟(1959-),女,陕西咸阳人,教授,博士,主要从事地基基础动力响应研究.
更新日期/Last Update: 2015-10-05