English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 56552/90363 (63%)
造访人次 : 11823687      在线人数 : 57
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/36095


    题名: 液化土壤模數折減下樁基動力反應分析
    其它题名: Analyses for Dynamic Responses of Pile Foundations Affected by Modulus Reduction of Liquefied Soils
    作者: 林伯勳;巫秀星;張德文
    贡献者: 淡江大學土木工程學系
    关键词: 樁基;液化;規範;土質折減係數;破壞;Pile;Liquefaction;Code;Modulus reduction;Failure
    日期: 2005-09
    上传时间: 2010-01-11 10:06:41 (UTC+8)
    出版者: 臺北市:中華民國大地工程學會
    摘要: 921集集地震曾造成台灣多處地區有土壤液化和基礎破壞現象,土壤液化不但會產生地盤側向滑動與地層下陷,同時亦對地層內之基礎造成嚴重影響。本研究採用員林地區液化鑽探資料與測站之地震紀錄,依規範所建議之土壤液化評估法分析其土質折減係數,並將此折減係數施用於土壤模數值,並配合土壤彈簧模式分析自由場之地盤液化反應,再將地盤反應作用於可模擬樁基礎之波動方程解,以分析液化地盤內樁基行為。研究發現:液化下之土質折減係數分析將不致改變最大地表位移和樁體變形量,但其將使液化區土層的位移和樁體的變形和彎矩放大,衍生破壞。無論土壤液化與否,大型地震均將致使樁基頂部產生過量之彎矩和剪力,造成混凝土開裂進一步產生彎矩破壞並致使樁基被剪斷。
    The Chi-Chi Earthquake causes soil liquefactions and foundation damages at many sites in Taiwan. Soil liquefaction not only can yield lateral spreading and ground settlement, but also produce severe impacts onto the foundations. This study presents the analysis for pile foundation subjected to the liquefied soils. Bored hole data from the Yuan-Lin area and the corresponding seismic records are used to obtain first the soil reduction factors as those suggested in code for evaluating liquefaction potential. These reduction factors were applied to the soil modulus and the associated spring model for free-field seismic response of the site under the earthquake. The ground motions were then mounted to the piles for corresponding foundation responses. The results showed that the ground displacements and pile deformations would not be affected much by the reduction factors of the soil parameters in the liquefaction analysis, however it could yield larger soil displacements and pile deformations as well as bigger moments along the piles at the liquefied layers. No matter the soil liquefies or not, large earthquake would result in excessive moments and shears for the pile head in which the concrete pile may fails to moments and shears.
    關聯: 2005第十一屆大地工程學術研討會暨國科會成果發表會論文集,8頁
    显示于类别:[土木工程學系暨研究所] 會議論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbHTML150检视/开启
    液化土壤模數折減下樁基動力反應分析 _英文摘要.docx摘要15KbMicrosoft Word69检视/开启
    液化土壤模數折減下樁基動力反應分析_中文摘要.docx摘要15KbMicrosoft Word127检视/开启

    在機構典藏中所有的数据项都受到原著作权保护.

    TAIR相关文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回馈