自然环境温度作用谱和混凝土温度响应谱
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国家自然科学基金资助项目(51278496,51378506);铁道部科技研究开发计划项目(2010G018);教育部博士研究生学术新人奖项目(094801016)


Spectra of Temperature Action and Response ofConcrete in Natural Environment
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    摘要:

    通过理论推导与现场实测研究了自然环境温度变化和混凝土温度响应规律;基于自然环境温度变化趋势,采用分段拟合法建立了自然环境温度作用谱模型;基于自然环境温度作用谱和混凝土温度响应,建立了混凝土温度响应谱模型.通过现场测定典型天气温度波动规律,验证了自然环境温度作用谱和混凝土温度响应谱模型的合理性及精度.结果表明:自然环境温度变化呈周期性波动,自然环境温度作用谱模型可描述自然环境温度波动规律及其特征;基于该模型所绘制曲线与自然环境实测温度吻合较好且精度较高.混凝土温度响应谱模型亦可表征其内部的温度变化趋势,理论拟合曲线与实测温度吻合.混凝土温度响应谱与自然环境温度作用谱之间的异同主要表现为周期相等、时间滞后和温度波动幅值衰减等方面.

    Abstract:

    The change rule of the natural environment temperature and the temperature response characteristic of concrete were investigated by theoretical inference and field measurement. Based on the change rule of the natural environment temperature, the action spectrum of the natural environment temperature was modeled by segmentation fitting method. The response spectrum model of concrete was also obtained from the action spectrum of the natural environment temperature and the temperature response of concrete. The rationality and precision of the action spectrum and the response spectrum were verified by testing the temperature rule in the typical weather. The results show that the change rule of the natural environment temperature embodies cyclical fluctuation, the action spectrum model of the natural environment temperature can be used to describe the change rule of the natural environment temperature and its characteristic, and the curve drawn based on the action spectrum model is fitted to the testing results with high precision. At the same time, the response spectrum model of temperature in concrete can be also used to describe its change, and the theoretical curve is perfectly fitted with the testing. Similarity between the action spectrum and the response spectrum manifests as the same cycle, and the differences of them are embodied in the lagged time and the weakened amplitude.

    参考文献
    [1]ABAHRI K,BELARBI R,TRABELSI A.Contribution to analytical and numerical study of combined heat and moisture transfers in porous building materials[J].Building and Environment,2011,46(7):1354 1360.
    [2]TB 100023—2005铁路桥涵钢筋混凝土和预应力混凝土结构设计规范[S].
    TB 100023—2005Code for design on reinforced and prestressed concrete structure of railway bridge and culvert[S].(in Chinese)
    [3]CHANG Winjin,WENG Chengi.An analytical solution to coupled heat and moisture diffusion transfer in porous materials[J].International Journal of Heat and Mass Transfer,2000,43(19):3621 3632.
    [4]QIN M H,RAFIK B,ABDELKARIM A M,et al.Coupled heat and moisture transfer in multi layer building materials[J].Construction and Building Materials,2009,23(2):967 975.
    [5]付春雨.混凝土梁桥的温度场与温度应力研究[D].成都:西南交通大学,2006.
    FU Chunyu.Research on the temperature field and temperature stress of the concrete bridge[D].Chengdu:Southwest Jiaotong University,2006.(in Chinese)
    [6]BURKAN I O,GHANI R A.Finite element modeling of coupled heat transfer,moisture transport and carbonation processes in concrete structures[J].Cement and Concrete Composites,2004,26(1):57 73.
    [7]HAUPL P,GRUNEWALD J,FECHNER H.Coupled heat air and moisture transfer in building structures[J].International Journal of Heat and Mass Transfer,1997,40(7):1633 1642.
    [8]WONG J M,GLASSER F P,IMBABI M S.Evaluation of thermal conductivity in air permeable concrete for dynamic breathing wall construction[J].Cement and Concrete Composites,2007,29(9):647 655.
    [9]SCHNIDLER A K,RUIZ J M,RASMUSSEN R O,et al.Concrete pavement temperature prediction and case studies with the FHWA HIPERPAV models[J].Cement and Concrete Composites,2004,26(5):463 471.
    [10]刘光廷,焦修刚.混凝土的热湿传导耦合分析[J].清华大学学报,2004,44(12):1653 1655.
    LIU Guangting,JIAO Xiugang.Coupled heat and moisture transfer analysis of concrete[J].Journal of Tsinghua University,2004,44(12):1653 1655.(in Chinese)
    [11]GERSON H S,NATHAN M.Heat,air and moisture transfer through hollow porous blocks[J].International Journal of Heat and Mass Transfer,2009,52(9):2390 2398.
    [12]LUIKOV A W.Heat and mass transfer in capillary porous bodies[M].Oxford:Pergamon Press,1966:6.
    [13]QIN M H,RAFIK B,ABDELKARIM A M,et al.An analytical method to calculate the coupled heat and moisture transfer in building materials[J].International Communications in Heat and Mass Transfer,2006,33(1):39 48.
    [14]蒋建华,袁迎曙,张习美.自然气候环境的温度作用谱和混凝土内温度响应预计[J].中南大学学报,2010,41(5):1923 1930.
    JIANG Jianhua,YUAN Yingshu,ZHANG Ximei.Action spectrum of temperature in natural climate environment and prediction of temperature response in concrete[J].Journal of Central South University,2010,41(5):1923 1930.(in Chinese)
    [15]曹为民,吴健,闪黎.水闸闸墩温度场及应力场仿真分析[J].河海大学学报,2002,30(5):48 52.
    CAO Weimin,WU Jian,SHAN Li.Numerical simulation of temperature field and stress field of sluice piers[J].Journal of Hohai University,2002,30(5):48 52.(in Chinese)
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刘鹏,余志武,宋力.自然环境温度作用谱和混凝土温度响应谱[J].建筑材料学报,2014,17(3):532-538

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  • 收稿日期:2012-12-31
  • 最后修改日期:2013-03-05
  • 在线发布日期: 2014-06-25
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