风压加速Π型混凝土梁渗透碳化深度分析
|
摘要
在已有的风压加速混凝土碳化计算模型的基础上,根据风压p与时间t、深度x的关系,构造了p-x-t关系数据模型,并给出了构造算例的数值解,为风压下混凝土碳化计算提供了一条简便途径。为了验证风压对混凝土碳化的加速作用,进行了Π型混凝土梁的碳化试验,依据理论分析和试验结果,得出风的漩涡和壕沟效应可以加速混凝土的碳化;另外,由风压作用产生的二次风流场也可以加速混凝土碳化,由此进一步完善了风压加速混凝土碳化的理论。
The p-x-t relational model was established based on the calculating model of concrete filter carbonization accelerated by wind pressure and relationship between wind pressure and time or depth.The carbonization depth was calculated in examples.A simple way was provided to calculate the concrete carbonization depth.In order to validate the effect of concrete carbonization accelerated by wind pressure,Π type concrete beam carbonization experiment was carried out.According to the theoretical analysis and experimental results,it is concluded that the wind swirl and the fosse moat effect can also accelerate the concrete carbonization.Besides,wind pressure can generate secondary air field,which can also accelerate the concrete carbonization.The principle of concrete carbonization accelerated by wind pressure is perfected.
The p-x-t relational model was established based on the calculating model of concrete filter carbonization accelerated by wind pressure and relationship between wind pressure and time or depth.The carbonization depth was calculated in examples.A simple way was provided to calculate the concrete carbonization depth.In order to validate the effect of concrete carbonization accelerated by wind pressure,Π type concrete beam carbonization experiment was carried out.According to the theoretical analysis and experimental results,it is concluded that the wind swirl and the fosse moat effect can also accelerate the concrete carbonization.Besides,wind pressure can generate secondary air field,which can also accelerate the concrete carbonization.The principle of concrete carbonization accelerated by wind pressure is perfected.
引文
[1]莫斯克文B M.混凝土和钢筋混凝土的腐蚀及其防护方法[M].倪继淼,译.北京:化学工业出版社,1988.MOSIKEWEN B M.The Corrosion and DefendingMethods About Concrete and Reinforced Concrete[M].Translated by NI Ji-miao.Beijing:Chemical In-dustry Press,1988.
[2]屈文俊,张誉,车惠民.既有混凝土结构的碳化预测[J].建筑结构,1999,36(4):31-34.QU Wen-jun,ZHANG Yu,CHE Hui-min.Carboniza-tion Predicting on Existing Concrete Structures[J].Building Structure,1999,36(4):31-34.
[3]屈文俊,张誉.构件截面混凝土碳化深度分布的有限元分析[J].同济大学学报:自然科学版,1999,27(4):412-416.QU Wen-jun,ZHANG Yu.Finite Element AnalysisAbout Concrete Carbonization Depth at the Section[J].Journal of Tongji University:Natural Science,1999,27(4):412-416.
[4]屈文俊,白文静.风压加速混凝土碳化计算模型[J].同济大学学报:自然科学版,2003,31(11):1 280-1 284.QU Wen-jun,BAI Wen-jing.Calculating Model ofConcrete Carbonization Accelerated by Wind Pressure[J].Journal of Tongji University:Natural Science,2003,31(11):1 280-1 284.
[5]郭猛.风加速混凝土碳化的试验研究[D].上海:同济大学,2005.GUO Meng.The Experimental Study on Carboniza-tion of Concrete Accelerated by Wind[D].Shanghai:Tongji University,2005.
[6]陈道普.风对混凝土碳化速度影响的研究[D].上海:同济大学,2006.CHEN Dao-pu.The Study on the Influence on Car-bonization Speed of Concrete by Wind[D].Shanghai:Tongji University,2006.
[7]刘伯权,潘元.框架-抗震墙结构抗震墙抗弯刚度的优化研究[J].建筑科学与工程学报,2005,22(1):55-57.LIU Bo-quan,PAN Yuan.Study on Optimum BendingRigidity of Seismic Wall in Frame-Shear Wall Struc-ture[J].Journal of Architecture and Civil Engineer-ing,2005,22(1):55-57.
[8]沈蒲生,刘杨.水平地震作用下框支剪力墙结构的变形研究[J].建筑科学与工程学报,2005,22(1):58-63.SHEN Pu-sheng,LIU Yang.Distortion Research ofShear Wall Structure Supported on Frame UnderEarthquake Actions[J].Journal of Architecture andCivil Engineering,2005,22(1):58-63.
[9]张生录,惠会清.钢筋混凝土灌注桩试桩静载试验[J].建筑科学与工程学报,2005,22(2):66-68.ZHANG Sheng-lu,HUI Hui-qing.Plate Loading Testof Reinforced Concrete Pile[J].Journal of Architec-ture and Civil Engineering,2005,22(2):66-68.
[10]贺拴海,任伟.纤维增强塑料加固混凝土结构研究[J].建筑科学与工程学报,2005,22(3):20-24.HE Shuan-hai,REN Wei.Research on ReinforcedConcrete Structure with FRP[J].Journal of Architec-ture and Civil Engineering,2005,22(3):20-24.
[11]马玉平,马昕,崔建涛.高强度混凝土试验研究[J].建筑科学与工程学报,2005,22(3):67-69.MA Yu-ping,MA Xin,CUI Jian-tao.ExperimentalResearch on High-Strength Concrete[J].Journal ofArchitecture and Civil Engineering,2005,22(3):67-69.
[12]贺拴海,吕颖钊.考虑材料耐久性的在役混凝土结构可靠度研究[J].建筑科学与工程学报,2005,22(1):71-75.HE Shuan-hai,LU Ying-zhao.Reliability Research ofExisting Reinforced Concrete Structures[J].Journal ofArchitecture and Civil Engineering,2005,22(1):71-75.
[2]屈文俊,张誉,车惠民.既有混凝土结构的碳化预测[J].建筑结构,1999,36(4):31-34.QU Wen-jun,ZHANG Yu,CHE Hui-min.Carboniza-tion Predicting on Existing Concrete Structures[J].Building Structure,1999,36(4):31-34.
[3]屈文俊,张誉.构件截面混凝土碳化深度分布的有限元分析[J].同济大学学报:自然科学版,1999,27(4):412-416.QU Wen-jun,ZHANG Yu.Finite Element AnalysisAbout Concrete Carbonization Depth at the Section[J].Journal of Tongji University:Natural Science,1999,27(4):412-416.
[4]屈文俊,白文静.风压加速混凝土碳化计算模型[J].同济大学学报:自然科学版,2003,31(11):1 280-1 284.QU Wen-jun,BAI Wen-jing.Calculating Model ofConcrete Carbonization Accelerated by Wind Pressure[J].Journal of Tongji University:Natural Science,2003,31(11):1 280-1 284.
[5]郭猛.风加速混凝土碳化的试验研究[D].上海:同济大学,2005.GUO Meng.The Experimental Study on Carboniza-tion of Concrete Accelerated by Wind[D].Shanghai:Tongji University,2005.
[6]陈道普.风对混凝土碳化速度影响的研究[D].上海:同济大学,2006.CHEN Dao-pu.The Study on the Influence on Car-bonization Speed of Concrete by Wind[D].Shanghai:Tongji University,2006.
[7]刘伯权,潘元.框架-抗震墙结构抗震墙抗弯刚度的优化研究[J].建筑科学与工程学报,2005,22(1):55-57.LIU Bo-quan,PAN Yuan.Study on Optimum BendingRigidity of Seismic Wall in Frame-Shear Wall Struc-ture[J].Journal of Architecture and Civil Engineer-ing,2005,22(1):55-57.
[8]沈蒲生,刘杨.水平地震作用下框支剪力墙结构的变形研究[J].建筑科学与工程学报,2005,22(1):58-63.SHEN Pu-sheng,LIU Yang.Distortion Research ofShear Wall Structure Supported on Frame UnderEarthquake Actions[J].Journal of Architecture andCivil Engineering,2005,22(1):58-63.
[9]张生录,惠会清.钢筋混凝土灌注桩试桩静载试验[J].建筑科学与工程学报,2005,22(2):66-68.ZHANG Sheng-lu,HUI Hui-qing.Plate Loading Testof Reinforced Concrete Pile[J].Journal of Architec-ture and Civil Engineering,2005,22(2):66-68.
[10]贺拴海,任伟.纤维增强塑料加固混凝土结构研究[J].建筑科学与工程学报,2005,22(3):20-24.HE Shuan-hai,REN Wei.Research on ReinforcedConcrete Structure with FRP[J].Journal of Architec-ture and Civil Engineering,2005,22(3):20-24.
[11]马玉平,马昕,崔建涛.高强度混凝土试验研究[J].建筑科学与工程学报,2005,22(3):67-69.MA Yu-ping,MA Xin,CUI Jian-tao.ExperimentalResearch on High-Strength Concrete[J].Journal ofArchitecture and Civil Engineering,2005,22(3):67-69.
[12]贺拴海,吕颖钊.考虑材料耐久性的在役混凝土结构可靠度研究[J].建筑科学与工程学报,2005,22(1):71-75.HE Shuan-hai,LU Ying-zhao.Reliability Research ofExisting Reinforced Concrete Structures[J].Journal ofArchitecture and Civil Engineering,2005,22(1):71-75.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心