[1]向 敏,张艳梅,冯 冲. 预应力管道冻胀引起梁体应力场有限元分析[J].河北工业大学学报,2016,(04):86-92.[doi:10.14081/j.cnki.hgdxb.2016.04.014]
 XIANG Min,ZHANG Yanmei,FENG Chong. Finite element analysis of beam stress field caused by prestressed pipe frost heaving[J].Journal of Hebei University of Technology,2016,(04):86-92.[doi:10.14081/j.cnki.hgdxb.2016.04.014]
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 预应力管道冻胀引起梁体应力场有限元分析()
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《河北工业大学学报》[ISSN:1007-2373/CN:13-1208/T]

卷:
期数:
2016年04期
页码:
86-92
栏目:
出版日期:
2016-07-31

文章信息/Info

Title:
 Finite element analysis of beam stress field caused by prestressed pipe frost heaving
作者:
 向 敏1张艳梅2冯 冲1
 1.石家庄铁道大学 土木工程学院,河北 石家庄 050043;2.河北锐驰交通工程有限公司,河北 石家庄 050043
Author(s):
 XIANG Min1ZHANG Yanmei2FENG Chong1
 1.School of Civil Engineering,Shijiazhuang Tiedao University,Hebei Shijiazhuang 050043,China;2.Hebei Reach Traffic Engineer Consultants Co ltd,Hebei Shijiazhuang 050043,China
关键词:
 混凝土T梁裂缝有限元冻胀应力场
Keywords:
 concrete T beamcracksfinite elementfrost heavingstress field
分类号:
U445.47
DOI:
10.14081/j.cnki.hgdxb.2016.04.014
文献标志码:
A
摘要:
 北方某严寒地区高速公路段预应力混凝土T梁在建设过程中出现大范围裂缝,经过现场试验调研,初步认为预应力混凝土T梁裂缝产生的原因可能有:张拉预应力时的混凝土强度、预应力偏位、预应力管道浆体冻胀和水冻成冰冻胀静爆.本文运用ANSYS有限元软件,对张拉预应力时混凝土强度不同及预应力偏位状态下的40 m T梁应力状态进行分析;运用MIDAS有限元软件,在理论推导的基础上对预应力管道浆体冻胀和水冻成冰冻胀静爆引起梁体管道周围混凝土应力场进行分析.分析结果表明,预应力管道冻胀是引起预应力混凝土T梁裂缝产生的主要原因.
Abstract:
 Expressway prestressed concrete T beams of a cold northern region T beams appeared a wide range of crack in the construction process,After the field test research,tentatively suggest that the causes of formation of cracks in the prestressed concrete T beam may have:tensioning prestressed concrete strength,prestressed deviation,Prestressed pipe slurry heaving and water frozen into ice slurry heaving swell Static Burst.In this paper,using ANSYS finite element software analysis 40 m T beam stress under different concrete strength when prestressed and different prestressed deviation state;using finite element software MIDAS analysis the surrounding concrete beam stress field caused by the prestressed pipe and water frozen into ice slurry heaving swell Static Burst pipe on the basis of theoretical analysis.The analysis results show that prestressed pipe frost heaving is the main reason for the prestressed concrete T beam cracks.

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更新日期/Last Update: 2016-10-28