|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
桩柱式高桥墩桩基稳定性分析
, PP. 95-99
Keywords: 桥梁工程,高桥墩桩基础,能量法,临界荷载,屈曲
Abstract:
基于桩柱式高桥墩桩基与一般桩基的差异,以及高桥墩桩基中桩、柱和土体共同工作的原理,建立了将桩和柱视为一个整体的分析计算模型。假设桩侧摩阻力随土层变化均匀分布,并假定桩侧土体地基反力系数随深度线性增加,由能量法得到了考虑高桥墩桩基中桩、柱材料和几何特性差异的桩土体系总势能,利用势能驻值原理导出相应的屈曲临界荷载和稳定计算长度。计算结果表明,通过改善土体性质,可提高桩柱式高桥墩桩基的稳定性能,但在柱桩刚度比较大,埋深较小时,其效果是有限的;高桥墩桩基的无量纲稳定计算长度随桩埋深的增加而增大;桩柱式高桥墩桩基可能存在一最优的柱桩刚度比,此时柱、桩、土三者共同作用体系最为协调。经与有限元数值分析结果比较发现,两者吻合很好。
| [1] | [J].Highway,2003 (S1):58-62.
|
| [2] | [M].北京:北京出版社,1986.MAO Yi-sheng,Technology History of Old Bridges in China
|
| [3] | [M].Beijing:Beijing Press,1986.
|
| [4] | 刘金砺.桩基础设计与计算
|
| [5] | [M].北京:中国建筑工业出版社,1990.LIU Jin-li.Design and Calculation of Piles Foundation
|
| [6] | [M].Beijing:China Architecture and Building Press,1990.
|
| [7] | TOAKLEY A R.Buckling Loads for Elastically Supported Struts
|
| [8] | [J].Journal of Engineering Mechanics Division,ASCE,1965,91 (3):205-231.
|
| [9] | REDDY A S,VALSANGKAR A J.Buckling of Fully and Par-tially Embedded Piles
|
| [10] | 朱大同.端部嵌固桩的计算长度
|
| [11] | [J].铁路标准设计通讯,1974(5):27-29.ZHU Da-tong.Calculafion Length of End-fixed Piles
|
| [12] | [J].Journal of Shanghai Jiaotong University,2000,34 (4):553-537.
|
| [13] | 赵明华,王季柏.基桩计入摩阻力的屈曲分析
|
| [14] | [J].岩土工程学报,1996,18(3):87-90.ZHAO Ming-hua,WANG Ji-bai.Buckling Analysis for Piles Including Friction
|
| [15] | [J].Chinese Journal of Geotechnical Engi-neering,1996,18 (3):87-90.
|
| [16] | [D].长沙:湖南大学土木工程学院,2005.ZOU Xin-jun.Theoretical and Experimental Study on the Buck-ling Analysis of Piles
|
| [17] | [D].Changsha:College of Civil Engi-neering,Hunan University,2005.
|
| [18] | 刘杰.复合地基中垫层技术及桩土相互作用
|
| [19] | [D].长沙:中南大学土木建筑学院,2003.LIU Jie.Cushion Technique and Interaction between Reinforce-ments and Surrounding Soil in Composite Foundation
|
| [20] | [D].Changsha:School of Civil Engineering and Architecture,Cen-tral South University,2003.
|
| [21] | 程翔云.桩柱式高桥墩几何非线性效应分析的迭代法
|
| [22] | [J].公路,2003(S1):58-62.CHENG Xiang-yun.Analysis of Geometric Nonlinear Effect on Higher Pile-column Bridge Piers by Iterative Method
|
| [23] | 茅以升.中国古桥技术史
|
| [24] | [J].Journal of Soil Mechanics and Foundation Division,ASCE,1970,96 (6):1 951-1 965.
|
| [25] | [J].Rai-lway Standard Design Communication,1974 (5):27-29.
|
| [26] | 赵明华.桥梁桩基计算与检测
|
| [27] | [M].北京:人民交通出版社,2001.ZHAO Ming-hua.Calculation and Test of Piles in Bridges
|
| [28] | [M].Beijing:(China Commications Press,2001.
|
| [29] | 杨健,沈惠申,张乐.桥梁桩基的屈曲荷载计算
|
| [30] | [J].上海交通大学学报,2000,34(4):533-537.YANG Jian,SHEN Hui-shen,ZHANG Le.Buckling loads for Bridge Piles
|
| [31] | 邹新军.基桩屈曲稳定分析的理论与试验研究
|
| [32] | 赵明华.桥梁桩基的屈曲分析及试验
|
| [33] | [J].中国公路学报,1990,3(4):47-57.ZHAO Ming-hua.Buckling Analysis and Experiment for Bridges Piles
|
| [34] | [J].China Journal of Highway and Tranport,1990,3 (4):47-57.
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
