Parametric Study on How the Lateral Forces Acting on a Deep Foundation Influences the Axial Forces Developing in the Piles

IF 0.1 Q4 ENGINEERING, CIVIL Romanian Journal of Transport Infrastructure Pub Date : 2017-12-01 DOI:10.1515/rjti-2017-0057
R. Iordanescu
{"title":"Parametric Study on How the Lateral Forces Acting on a Deep Foundation Influences the Axial Forces Developing in the Piles","authors":"R. Iordanescu","doi":"10.1515/rjti-2017-0057","DOIUrl":null,"url":null,"abstract":"Abstract A missing piece in the design of bridge substructure is that the equation given in structural mechanics that assesses the axial forces in the piles of a deep foundation does not take into account the effect of lateral forces acting on the pile cap. In practice, pile forces are determined using a FEA software. This method, however, can not be easily incorporated into an automated program that performs local and global optimizations of a structure. One of the reasons is that this method is particularly demanding on the computational resources. Since a bridge can have a number of deep foundations, which must be verified for various combinations of actions, which need to be optimized, recalculated in various scenarios and then the entire process reiterated for all structural solutions, computational cost can become prohibitive. Another reason is that due to the lack of a relation between all the parameters and dimensions that influence the behaviour of a deep foundation, their optimization is difficult. For this purpose, a parametric study has been carried out to investigate what parameters influence the relation between the lateral forces applied to the foundation and the axial forces that develop in the piles, and ultimately propose an equation that takes into account the lateral forces. The study is carried out using experimental data obtained on models using the finite element analysis method using SAP 2000 (v.15) software.","PeriodicalId":40630,"journal":{"name":"Romanian Journal of Transport Infrastructure","volume":null,"pages":null},"PeriodicalIF":0.1000,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Romanian Journal of Transport Infrastructure","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/rjti-2017-0057","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
引用次数: 0

Abstract

Abstract A missing piece in the design of bridge substructure is that the equation given in structural mechanics that assesses the axial forces in the piles of a deep foundation does not take into account the effect of lateral forces acting on the pile cap. In practice, pile forces are determined using a FEA software. This method, however, can not be easily incorporated into an automated program that performs local and global optimizations of a structure. One of the reasons is that this method is particularly demanding on the computational resources. Since a bridge can have a number of deep foundations, which must be verified for various combinations of actions, which need to be optimized, recalculated in various scenarios and then the entire process reiterated for all structural solutions, computational cost can become prohibitive. Another reason is that due to the lack of a relation between all the parameters and dimensions that influence the behaviour of a deep foundation, their optimization is difficult. For this purpose, a parametric study has been carried out to investigate what parameters influence the relation between the lateral forces applied to the foundation and the axial forces that develop in the piles, and ultimately propose an equation that takes into account the lateral forces. The study is carried out using experimental data obtained on models using the finite element analysis method using SAP 2000 (v.15) software.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
深基础侧力对桩内轴力影响的参数化研究
摘要桥梁下部结构设计中的一个缺失是,结构力学中给出的评估深基础桩中轴向力的方程没有考虑作用在承台上的侧向力的影响。在实践中,使用有限元分析软件来确定桩力。然而,这种方法不能很容易地结合到执行结构的局部和全局优化的自动化程序中。其中一个原因是这种方法对计算资源的要求特别高。由于桥梁可能有许多深基础,必须对各种作用组合进行验证,这些作用组合需要在各种情况下进行优化、重新计算,然后对所有结构解决方案重申整个过程,因此计算成本可能会变得过高。另一个原因是,由于影响深基础性能的所有参数和尺寸之间缺乏关系,因此很难对其进行优化。为此,进行了一项参数研究,以研究哪些参数会影响施加在基础上的侧向力和桩中产生的轴向力之间的关系,并最终提出一个考虑侧向力的方程。本研究使用SAP 2000(v.15)软件有限元分析方法在模型上获得的实验数据进行。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
6
审稿时长
10 weeks
期刊最新文献
The influence of the introduction of an artificial neural network for traffic signal control Impact of remittances on exports and economic growth: a cross country analysis The influence of the introduction of public transportation lanes in the municipality of Bucharest A Moderation effect of atmospheric conditions on PM2.5 traffic related concentration Impact of expansion joints on noise pollution, case study in Cluj-Napoca
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1