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J4  2010, Vol. 44 Issue (10): 2029-2035    DOI: 10.3785/j.issn.1008-973X.2010.10.031
岩土工程、土木及建筑工程     
水平受荷长桩弹塑性解析计算
常林越1,3, 王金昌2, 朱向荣1, 谢新宇1
1. 浙江大学 软弱土与环境土工教育部重点实验室,浙江 杭州 310058; 2. 浙江大学 交通工程研究所,浙江 杭州 310058;3. 华东建筑设计研究院有限公司, 上海 200002
Elastoplastic analytical computation of laterally loaded long pile
CHANG Lin yue1,3, WANG Jin chang2, ZHU Xiang rong1, XIE Xin yu1
1. Key Laboratory of Soft Soils and Geoenvironmental Engineering, Ministry of Education, Zhejiang University, Hangzhou 310058, China; 2. Institute of Transportation Engineering, Zhejiang University, Hangzhou 310058, China; 3. East China Architecture Design Institute, Shanghai 200002, China
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摘要:

针对目前水平受荷桩计算中考虑土体非线性本构关系后,导致计算复杂或参数难以获取而不易于工程应用的问题,基于线弹性地基m法和桩侧土体简化的弹塑性本构关系,给出水平受荷半无限长桩控制方程的基本解,推导不同工况下桩身最大挠度和最大弯矩与荷载关系的统一的量纲一的解析表达式,编制简单的数学程序可以方便地计算最大挠度和最大弯矩.对复杂的解析解进行简化,计算表明,简化的计算式与解析解计算结果吻合很好,最大误差小于1%,借助计算器可以进行相关计算,大大方便了工程的计算应用.

Abstract:

The consideration of the nonlinear constitutive relations of soil for analyzing laterally loaded piles causes complex calculation or parameters difficult to obtain, which is inconvenient for engineering applications. The fundamental solutions of governing equation about the semiinfinite long pile under lateral loading were given based on mmethod of the linear elastic foundation and simplified elastoplastic constitutive relations of soil. The unified dimensionless analytical expressions of both the loadmaximun deflection relations and the loadmaximum moment relations under various loading cases were derived. The maximun deflection and the maximum moment can be expediently calculated by simple mathematical programs. The complex analytical solutions were simplified for more easily applying to engineering calculation. Results showed that the simplified equations calculated using a calculator agreed well with the exact solutions, and the largest error was less than 1%.

出版日期: 2010-10-01
:  TU 473.1  
通讯作者: 王金昌,男,副教授.     E-mail: wjc501@126.com
作者简介: 常林越(1983—),男,江苏泰兴人,博士,从事岩土工程研究.E-mail: changlinyue@zju.edu.cn
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引用本文:

常林越, 王金昌, 朱向荣, 谢新宇. 水平受荷长桩弹塑性解析计算[J]. J4, 2010, 44(10): 2029-2035.

CHANG Lin yue, WANG Jin chang, ZHU Xiang rong, XIE Xin yu. Elastoplastic analytical computation of laterally loaded long pile. J4, 2010, 44(10): 2029-2035.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2010.10.031        http://www.zjujournals.com/eng/CN/Y2010/V44/I10/2029

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