张少民,屈立军,褚新颖.标准受火条件下考虑水分迁移混凝土板温度场数值计算[J].火灾科学,2006,15(4):206-211. |
标准受火条件下考虑水分迁移混凝土板温度场数值计算 |
Numerical Predictions of Temperature Field within Reinforced Concrete Slabs Subject to Nominal Fire Considering Moisture Transfer |
投稿时间:2006-04-19 修订日期:2006-08-19 |
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DOI:10.3969/j.issn.1004-5309.年.期.顺序 |
基金项目:国家重点基础研究专项经费资助(2001CB409603) |
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中文关键词: 混凝土板 温度场 含水量 水分迁移 |
英文关键词:Reinforced concrete slabs Temperature field Moisture content Moisture transfer |
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中文摘要: |
火灾(高温)条件下,钢筋混凝土构件中水分的蒸发迁移会改变构件内部的传热过程,导致温升及局部温度分布发生变化。本文尝试在一定假设务件的基础上建立简单的水分蒸发迁移模型来考虑水分对混凝土板温升过程及温度分布的影响,进而对计算温度场进行适当修正。 |
英文摘要: |
As a result of water evaporation and moisture transfer,the heat transfer within reinforced concrete members subject to fire (under high temperature)will be affected,so as to induce the variation of local temperature distribution.This paper develops the models of evaporation of water and moisture transfer by considering the water moving,whereby the calculation of temperature field is amended with high accuracy. |
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