[1]庄一舟,王静杰,陈云,等.微型桩动力p-y曲线影响因素参数分析[J].地震工程与工程振动,2018,(04):029-33.[doi:10.13197/j.eeev.2018.04.29.zhuangyz.005]
 ZHUANG Yizhou,WANG Jingjie,CHEN Yun,et al.Parameter analysis of influence factors of micro-pile dynamic p-y curve[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2018,(04):029-33.[doi:10.13197/j.eeev.2018.04.29.zhuangyz.005]
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微型桩动力p-y曲线影响因素参数分析
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《地震工程与工程振动》[ISSN:/CN:]

卷:
期数:
2018年04期
页码:
029-33
栏目:
论文
出版日期:
2018-10-28

文章信息/Info

Title:
Parameter analysis of influence factors of micro-pile dynamic p-y curve
作者:
庄一舟12 王静杰1 陈云13 黄福云1
1. 福州大学 土木工程学院, 福建 福州 350108;
2. 浙江工业大学 建筑工程学院, 浙江 杭州 310014;
3. 上海蓝科建筑减震科技股份有限公司, 上海 200000
Author(s):
ZHUANG Yizhou12 WANG Jingjie1 CHEN Yun13 HUANG Fuyun1
1. College of Civil Engineering, Fuzhou University, Fuzhou 350108, China;
2. School of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, China;
3. Shanghai LANKE Building Damping Technology Co., Ltd, Shanghai 200000, China
关键词:
微型桩动力p-y曲线振动台输入波频率桩顶质量加速度峰值
Keywords:
micro-piledynamic p-y curveshaking tablewave frequencymass on pile headacceleration peak
分类号:
TU4
DOI:
10.13197/j.eeev.2018.04.29.zhuangyz.005
摘要:
本文通过微型桩振动台试验分析了输入波频率、桩顶质量和加速度峰值对砂土中微型桩动力p-y曲线的影响。结果表明:当输入波的频率为低频时,桩侧土压力p与桩身位移y的关系接近线性关系,形成的滞回环面积很小;当输入波频率较大时,桩侧土压力p与桩身位移y成明显非线性关系,形成的滞回环面积较大。随着桩顶质量和加速度峰值的增加,p-y曲线的滞回环呈逐渐张开的趋向,其耗能效应增加。
Abstract:
In this paper, the influence of wave frequency, mass on pile head and acceleration peak on the dynamic p-y curve of micro-pile in sand are analyzed by micro-pile shaking table test. The results indicate that when the frequency of input wave is low, the relation between the soil pressure and the displacement is near linear and the area of its hysteretic loop is very small; however, the relation becomes nonlinear and its hysteretic area is larger with the frequency increasing. With the increase of quality on pile head and acceleration peak, the hysteresis loop of p-y curve is gradually open, and its energy dissipation effect is increased.

参考文献/References:

[1] Tokimatsu K, Suzuki H. Pore water pressure response around pile and its effects on py behavior during soil liquefaction[J]. Journal of the Japanese Geotechnical Society, 2004, 44(6):101-110.
[2] 凌贤长, 王臣, 王成. 液化场地桩-土-桥梁结构动力相互作用振动台试验模型相似设计方法[J]. 岩石力学与工程学报, 2004, 23(3):450-456. LING Xianchang, WANG Chen, WANG Cheng. Scale modeling method of shaking table test of dynamic interaction of pile-soil-bridge structure in ground of soil liquefaction[J].Chinese Journal of Rock Mechanics and Engineering, 2004, 23(3):450-456. (in Chinese)
[3] G. W. Housner, Boutros A. Klink, Eduardo Kausel.Proceedings of the first world conference on structural control[J]. Soil Dynamics and Earthquake Engineering,1996, 15(2):147-149.
[4] Min-TaekYoo, Jung-InChoi, Jin-TaeHan, et al. Dynamic P-Y curves for dry sand from centrifuge tests[J]. Journal of Earthquake Engineering, 2013, 17(7):1082-1102.
[5] Chau K T, Shen C Y, Guo X. Nonlinear seismic soil-pile-structure interactions:shaking table tests and FEM analyses[J]. Soil Dynamics & Earthquake Engineering, 2009, 29(2):300-310.
[6] Zhengnong L I, Zhou Z, Zhu X. Simplified model of nonlinear pile-soil dynamic interaction[J]. Journal of Natural Disasters, 2013, 22(6):252-260.
[7] Ueng T S, Wang M H, Chen M H, et al. A large biaxial shear box for shaking table test on saturated sand[J]. Geotechnical Testing Journal, 2006, 29(1):1-8.

备注/Memo

备注/Memo:
收稿日期:2018-03-15;改回日期:2018-06-17。
基金项目:国家自然科学基金项目(51778147,51578161);浙江省自然科学基金项目(LY17E080022)
作者简介:庄一舟(1964-),男,教授,博士,主要从事桥梁抗震的研究.E-mail:478372092@qq.com
通讯作者:陈云(1989-),男,硕士研究生,主要从事结构减隔震的研究.E-mail:314650842@qq.com
更新日期/Last Update: 1900-01-01