火灾环境下钢构件升温过程的模型研究

史聪灵,霍然,李元洲,彭伟,姚斌

中国工程科学 ›› 2003, Vol. 5 ›› Issue (12) : 66 -72.

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中国工程科学 ›› 2003, Vol. 5 ›› Issue (12) : 66 -72.
学术论文

火灾环境下钢构件升温过程的模型研究

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Modeling Study of Steel Elements Submitted to Real Compartment Fires

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摘要

对良好分层情况下的室内火灾进行建模,研究了实际火灾环境下的钢构件升温过程。在全尺寸的实验房间开展了油池火燃烧实验,通过不同的羽流模型和溢流模型,预测室内温度和钢构件温度的变化,并对羽流模型的适用性和影响计算的一些参量做了分析。最后对一个候机厅内钢架结构的零售商店的设定火灾进行构件升温预测。

Abstract

A simple model was built to describe the well-stratified compartment fire, by which the temperature rise of steel element was investigated. Pool fire experiments were carried out in a full-scale compartment. With different plume and spill plume correlations, the temperature development of the enclosure and steel element were modeled, then the applicability of plume models and factors affecting the calculation were analyzed. Finally, such method was put to use for design fires of a steel-structured retail shop in an airport terminal building.

关键词

火灾环境 / 双区模型 / 钢构件温度 / 羽流模型

Key words

real fire environment / two-zone model / temperature of steel element / plume models

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史聪灵,霍然,李元洲,彭伟,姚斌 火灾环境下钢构件升温过程的模型研究[J]. 中国工程科学, 2003, 5(12): 66-72 DOI:

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