|本期目录/Table of Contents|

[1]屈文俊,赵红晓.风压加速Π 型混凝土梁渗透碳化深度分析[J].建筑科学与工程学报,2006,23(04):15.
　QU Wen-jun,ZHAO Hong-xiao.Analysis of Filter Carbonization Depth of Π Type Concrete Beam with Wind Pressure Acceleration[J].Journal of Architecture and Civil Engineering,2006,23(04):15.
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风压加速Π 型混凝土梁渗透碳化深度分析(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
23卷
期数:
2006年04期
页码:
15
栏目:
出版日期:
2006-12-20

文章信息/Info

Title:
Analysis of Filter Carbonization Depth of Π Type Concrete Beam with Wind Pressure Acceleration
作者:
屈文俊1,赵红晓2
1. 同济大学 建筑工程系,上海 200092; 2. 平顶山工学院 土木工程系,河南 平顶山 467001
Author(s):
QU Wen-jun1, ZHAO Hong-xiao2
1. Department of Architectural Engineering, Tongji University, Shanghai 200092, China; 2. Department of Civil Engineering, Pingdingshan Institute of Technology, Pingdingshan 467001, Henan, China
关键词:
碳化分析;  风压;  渗透;  壕沟效应;  混凝土梁;  迎风面
Keywords:
carbonization analysis;  wind pressure;  filter;  fosse moat effect;  concrete beam;  windward side
分类号:
TU528.1
DOI:
-
文献标志码:
A
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。
Abstract:
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.

参考文献/References:

[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 Defending Methods About Concrete and Reinforced Concrete[M].Translated by NI Ji-miao.Beijing:Chemical Industry 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.Carbonization 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 Analysis About 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 of Concrete 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 Carbonization 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 Carbonization Speed of Concrete by Wind[D].Shanghai:Tongji University,2006.

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备注/Memo

备注/Memo:
收稿日期:2006-11-22
基金项目:国家自然科学基金项目(50178050)
作者简介:屈文俊(1958-),男,河南辉县人,教授,博士生导师,工学博士,E-mail:quwenjun@online.sh.cn。
更新日期/Last Update: 2006-12-20