|Table of Contents|

Practical Calculation Method for Temperature Elevation of Steel Members on Flame Radiation in Large Space Building Fire(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2008年03期
Page:
54-60
Research Field:
Publishing date:
2008-09-20

Info

Title:
Practical Calculation Method for Temperature Elevation of Steel Members on Flame Radiation in Large Space Building Fire
Author(s):
DU Yong1;  LI Guo-qiang2
1. School of Architecture and Urban Planning, Nanjing University of Technology, Nanjing 210009, Jiangsu, China; 2. School of Civil Engineering, Tongji University, Shanghai 200092, China
Keywords:
large space building fire;  flame radiation;  temperature elevation of steel member;  fire-resistance design of steel structure
PACS:
TU972
DOI:
-
Abstract:
Based on parameter analysis on the heat equilibrium equation of lumped differential formulation, the parameters for influencing the temperature elevation of steel members under flame radiation were gained as follows: the time history of temperature of steel members, the temperature of smoke in large space building fire, the configuration factor for heat radiation from flame to steel members, the effective surface area coefficient of steel members for flame radiation and the shape and size of steel member. A direct expression involving the above factors for calculating temperature of steel members caused by flame radiation in large space building fire was proposed by cure-fitting strategy on the base of exact solution to the heat equilibrium equation for the temperature and the undetermined constants of the expression were determined. This expression is simple and can be conveniently used for fire-resistance design of steel structures for large space buildings.

References:

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[5]李国强,杜 咏.实用大空间建筑火灾空气升温经验公式[J].消防科学与技术,2005,24(3):283-287. LI Guo-qiang,DU Yong.Utility Temperature Elevation Empirical Formula in Large Space Fire[J].Fire Science and Technology,2005,24(3):283-287.

Memo

Memo:
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Last Update: 2008-09-20