English  |  正體中文  |  简体中文  |  Items with full text/Total items : 27287/39131
Visitors : 2444724      Online Users : 34
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/12068

Title: 土壤液化對樁基礎之影響研究
Effects of Soil Liquefaction on Pile Foundations
Authors: 林三賢
Contributors: NTOU:Department of Harbor and River Engineering
Keywords: 土壤液化;基樁;土壤側潰;挫屈
Soil liquefaction;pile;lateral spreading;buckling
Date: 2003-08
Issue Date: 2011-06-29T01:38:03Z
Publisher: 行政院國家科學委員會
Abstract: 摘要:本計畫旨在探討土壤液化後所產生側潰 造成地盤永久性位移對混凝土基樁行為之影 響,針對兩個基樁破壞案例做回饋案例分析, 分析模式採用梁在溫克基礎模式,其中,土壤 性質以非線性彈簧模擬,樁以非線性之彎矩 - 曲率關係表示,而土壤施於基樁之作用力以修 正之 Bouc–Wen 模式來模擬。在側潰分析中, 假設土壤彈簧支撐所受之側向位移量等於地 盤的永久變形量,並參考 Tokimatsu and Asaka (1998)及 JRA (1996)建議之計算方法,應用於 案例分析中,並與現場觀測結果做比較。另 外,運用本研究分析模式,計算臨界之挫屈載 重,分析基樁之挫屈行為,並於案例分析中, 評估基樁受土壤液化影響後,樁為彎矩或挫屈 破壞。
abstract:Two case histories of failure of piles caused by ground lateral spreading are back studied using the beam on Winkler foundation method including nonlinear soil springs and a nonlinear moment-curvature relation for the pile. Soil loads on the pile are modeled based on the Modified Bouc-Wen model. The lateral spreading effect is modeled by displacing laterally the soil spring support by an amount equal to the free field permanent deformation. Design procedures suggested by Tokimatsu and Asaka (1998) and by JRA (1996) were also used for case histories evaluation and also compare to available observation results. Buckling analysis was performed to determine critical buckling load. Whether the evaluated cases were failed due to either bending or buckling is also discussed in the paper.
Relation: NSC92-2211-E019-007
URI: http://ntour.ntou.edu.tw/ir/handle/987654321/12068
Appears in Collections:[河海工程學系] 研究計畫

Files in This Item:

File Description SizeFormat

All items in NTOUR are protected by copyright, with all rights reserved.


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback