On the Danger of Threats Underestimating and the Resulting Unreliable Assessment of Building Fire Safety

作     者：PawełA.Król 

作者机构：Faculty of Civil EngineeringInstitute of Building EngineeringWarsaw University of Technology00-637 WarsawPoland 

出 版 物：《Journal of Civil Engineering and Architecture》 (土木工程与建筑（英文版）)

年 卷 期：2023年第17卷第8期

页      面：395-405页

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

主　　题：Fire safety assessment fire resistance prescriptive rules case study 

摘      要：The paper gives an example showing that the utilization of prescriptive rules in some situations can lead to strong underestimation of the real risks and inadequate fire safety assessment of *** issue seems to be very important as the prescriptive rules in many European countries are the only allowed and acceptable by the authority’s method of building fire safety *** building presented in this paper is an exemplary bakery plant consisting of several premises of a different purpose and method of use,e.g.:technical facilities,production depot,distribution and storage spaces,long-term storage cool rooms,*** whole building that consists of single-story technological(production and storage)part and(located on two stories)office parts was approved as a singular fire zone with a total usable area of 6280 *** technological area includes production facilities,storage depots of raw materials,packages and finished products,as well as cold stores and a number of auxiliary function *** the second(having two stories)part of the building some social rooms,administrative areas and offices are *** total height of the building(at the highest point)does not exceed 10.5 *** to the Polish regulations the parameters determining the fire-related requirements of individual structural elements of the building(especially in terms of their fire resistance)are the surface area,the average value of the fire-load density and the presence of the risk of possible *** building was designed based on the assumption that the average fire-load density does not exceed the level of 1000 MJ/*** analysis and calculations carried out during the exploitation phase of the building confirmed the compatibility with the assumptions adopted,but the actual volume,estimated at the level of 974 MJ/m2 proved to be very close to the limit *** of the limit value of 1000 MJ/m2-due to provisions given in a state regulations-would automatically double