[1]温欣,徐东强,闫文赏,等.竖向荷载作用下预应力抗拔灌注桩三维有限元分析[J].世界地震工程,2016,(02):152-158.
 WEN Xin,XU Dongjiang,YAN Wenshang,et al.Three dimensional finite element analysis of prestressed antiuplift pile under vertical load[J].,2016,(02):152-158.
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竖向荷载作用下预应力抗拔灌注桩三维有限元分析
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《世界地震工程》[ISSN:/CN:]

卷:
期数:
2016年02期
页码:
152-158
栏目:
出版日期:
2016-06-30

文章信息/Info

Title:
Three dimensional finite element analysis of prestressed antiuplift pile under vertical load
作者:
温欣12 徐东强1 闫文赏3 张跃影1
1. 河北工业大学 土木工程学院, 天津 300130;
2. 唐山工业职业技术学院 建筑化工系, 河北 唐山 063200;
3. 华北理工大学 建筑工程学院, 河北 唐山 063000
Author(s):
WEN Xin12 XU Dongjiang1 YAN Wenshang3 ZHANG Yueying1
1. Institute of Civil Engineering, Hebei University of Technology, Tianjin 300130, China;
2. Architecture and Chemical Engineering, Tangshan Industrial Vocational and Technical College, Tangshan 063200, China;
3 School of Architectural Engineering, North China University of Science and Technology, Tangshan 063000, China
关键词:
预应力抗拔灌注桩有限元桩侧阻力
Keywords:
prestressedanti-uplift filling pilefinite elementpile side resistance
分类号:
TU473.1
摘要:
预应力抗拔灌注桩通过对桩体施加预应力产生的抗拔力可以有效阻止裂缝发展,在承载力不变的前提下降低桩基钢筋用量,节省工程成本。借助有限元数值分析方法,通过各种符合抗拔桩工作性状的参数的合理假定,对竖向荷载作用下预应力抗拔灌注桩的工作性状及桩-土动力相互作用进行了研究。结论表明:桩径增大和桩长增长将导致桩顶位移量减小;预应力抗拔灌注桩与普通桩相比具有更好的变形协调能力和承受上拔荷载的能力。
Abstract:
Based on anti-uplift force caused by prestress applied to pile body,prestressed anti-uplift filling pile may resist cracking development effectively and decrease reinforcement use amount and engineering cost under unchanged bearing capactiy.With the aid of finite element numerical analysis tools,through reasonable assumption of parameters about working character that accords with uplift pile,we studied the working traits of single pile with vertical load and dynamic interaction between pile and soil.Results show that the increase of diameter and length of the pile can lead to decrease of pile top displacement, and compared with the ordinary pile,the prestressed anti-uplift filling piles has better deformation coordinate ability and the ability to bear the uplift load.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-06-12;改回日期:2016-02-23。
基金项目:河北省高校科技研究基金项目(交通荷载作用曹妃甸地区饱和软土动力性能研究)(QN2014335)
作者简介:温欣(1980-),男,在读博士研究生,副教授,主要从事地基基础工程研究.E-mail:erir_wxin@163.com
更新日期/Last Update: 1900-01-01