全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

高桩承台基础群桩等效嵌固长度参数分析

, PP. 47-52

Keywords: 桥梁工程,侧向荷载,高桩承台,嵌固长度

Full-Text   Cite this paper   Add to My Lib

Abstract:

从高桩承台基础等效体系和原型基本周期相等的原理出发,采用弹性地基反力法考虑桩-土相互作用,通过幂级数法求解侧向荷载下桩的挠曲微分方程,提出了一种求解高桩承台基础在侧向荷载作用下等效嵌固长度的解析方法;分析了土层、桩径与桩距比、桩柱抗推刚度比等参数对桩基础等效嵌固长度的影响规律,并给出了具有实用性的高桩承台桩基等效嵌固长度简化公式。结果表明土层性质和桩、柱抗推刚度比是决定高桩承台桩基础等效嵌固长度的主要因素;研究成果可简化群桩基础模型,同时兼顾上部结构响应的精度,为桥梁概念设计提供依据。

References

[1]  周 敉.高桩承台桥梁抗震性能试验和理论研究[D].上海:同济大学,2009.
[2]  马志涛.水平荷载下桩基受力特性研究综述[J].河海大学学报:自然科学版,2006,34(5):546-551. MA Zhi-tao.Study on behavior of pile foundation under lateral loading[J].Journal of Hehai University:Natural Science Edition,2006,34(5):546-551.
[3]  任文峰,王星华,韩晓飞.火山灰沉积地区桩基承载力试验[J].长安大学学报:自然科学版,2009,29(6):59-63. REN Wen-feng,WANG Xing-hua,HAN Xiao-fei.Test on bearing capacity of bored pile in pozzolana sediment area[J].Journal Chang'an University:Natural Science Edition,2009,29(6):59-63.
[4]  胡琦忠,金伟良,史方华,等.大型跨海桥梁基础结构正常使用极限状态的可靠度分析[J].中国公路学报,2008,21(1):53-58. HU Qi-zhong,JIN Wei-liang,SHI Fang-hua,et al.Reliability analysis of foundation structures of offshore long-span-bridges on serviceability limit states[J].China Journal of Highway and Transport,2008,21(1):53-58.
[5]  冯忠居,谢永利,李 哲,等.大直径超长钻孔灌注桩承载性状[J].交通运输工程学报,2005,5(1):24-27. FENG Zhong-ju,XIE Yong-li,LI Zhe,et al.Bearing property of large-diameter over-length nonplacement pile[J].Journal of Traffic and Transportation Engineering,2005,5(1):24-27.
[6]  Murat D.Integral abutment-backfill behavior on sand soil-pushover analysis approach[J].Journal of Bridge Engineering,2005,10(3):354-364.
[7]  Chen Y.Assessment on pile effective lengths and their effects on design-I.assessment[J].Computers & Structures,1997,62(2):265-286.
[8]  NCHRP REPORT 489.Design of highway bridges for extreme events[R].Washington DC:Transportation Research Board,2003.
[9]  刘伟岸,叶爱君,王斌斌.大跨度桥梁桩基抗震简化模式的分析与探讨[J].结构工程师,2007,23(1):51-55. LIU Wei-an,YE Ai-jun,WANG Bin-bin.Discussion on seismic simplified modes of pile foundation in long-span bridge[J].Structural Engineers,2007,23(1):51-55.
[10]  杨昌众.桩基桥梁的场地判别和地震反应计算的实用简化方法[D].上海:同济大学,1987.
[11]  燕 斌.桥梁桩基础抗震简化模型比较研究[D].上海:同济大学,2007.
[12]  Harry G P.Approximate computer analysis of pile groups subjected to loads and ground movements[J].International Journal for Numerical and Analytical Methods in Geomechanics,1999,23(10):1021-1041.
[13]  Rollins K M,Gerber T M,Lane J D,et al.Lateral resistance of a full-scale pile group in liquefied sand[J].Journal of Geotechnical and Geoenvironmental Engineering,2005,131(1):115-125.
[14]  胡人礼.桥梁桩基分析和设计[M].北京:中国铁道出版社,1987.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133