[1]朱建新,丁曲,张秋阳,等.基于损伤的PHC桩单轴受拉动态本构模型研究[J].西安建筑科技大学学报:自然科学版,2011,43(01):13-017.[doi:DOI:10.15986/j.1006-7930.2011.01.018]
 ,,et al.Research on uniaxial tensile dynamic constitutive modelof PHC piles based on damage[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2011,43(01):13-017.[doi:DOI:10.15986/j.1006-7930.2011.01.018]
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基于损伤的PHC桩单轴受拉动态本构模型研究()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
43
期数:
2011年01期
页码:
13-017
栏目:
出版日期:
2011-02-28

文章信息/Info

Title:
Research on uniaxial tensile dynamic constitutive model
of PHC piles based on damage
文章编号:
1006-7930(2011)01-0013-04
作者:
朱建新12丁曲12张秋阳1过新华1
(1.中南大学 现代复杂装备设计与极端制造教育部重点实验室,湖南 长沙 410083; 2.湖南山河智能机械股份有限公司,湖南 长沙,410100)
Author(s):
ZHU Jian-xin1DING Qu1ZHANG Qiu-yang1GUO Xin-hua1
(1.Key Laboratory of Modern Complex Equipment Design and Extreme Manufacturing,
Central South University,Changsha 410083,China;
2.Hunan Sunward Intelligent Machinery Co.,LTD.Changsha 410100,China)
关键词:
PHC桩预应力混凝土损伤单轴受拉动态本构模型
Keywords:
PHC pilesPre-stressed concrete damage uniaxial tension dynamic constitutive model
分类号:
TU473.1
DOI:
DOI:10.15986/j.1006-7930.2011.01.018
文献标志码:
A
摘要:
通过引入应变率强化因子、损伤弱化因子和预应力强化因子,并分析它们对预应力混凝土强度的影响,建立了一个单轴受拉动态本构模型用于描述PHC桩在冲击载荷作用下的冲击特性。对比了试验结果与该模型的数值模拟结果,结果表明:模型预示结果在变形趋势上符合很好,在数值精度上与试验结果符合良好。本成果可为振动沉桩过程中控制振动锤参数提供依据,能有效防止因拉应力过大而导致PHC桩被拉断的事故。
Abstract:
Abstract:Based on the strain rate enhancement factor,damage weakening factor and pre-stressed enhancement factor,this
paper has analyzed their impact on the strength of pre-stressed concrete and established a uniaxial tensile dynamic constitutive model which is used to describe the impact properties of PHC piles under impact load.The model simulation results
were compared with the experimental results,which shows that the results indicated by this model is good agreement with
the deformation trend and agreement with the experimental results in numerical accuracy.The results of this paper can
provide the basis for controlling the vibration parameters in the process of vibrating pile.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2010-03-12  修改稿日期:2010-12-30
基金项目:国家863项目高技术研究发展计划资助项目(2003AA430200)
作者简介:朱建新(1965-),男,湖南湘潭人,博士生导师,教授,主要从事振动理论在工程机械中的应用,机电液一体化技术研究.
更新日期/Last Update: 2015-11-01