Improvement methodology for the cal­culated value of the fire risk in buildings and structures based on stochastic description of determining their processes and trees events

Холщевников, В. В.; Prisadkov, V. I.; Kosterin, I. V.

doi:10.18322/pvb.2017.26.01.5-17

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…3. На время блокирования ОФП эвакуационных выходов влияет не только высота экрана, но и мощность, динамика и месторасположение очага пожара на этаже [15].…”

Section: анализ результатов моделированияunclassified

Screens surrounding openings in floor slabs of public buildings

Prisadkov

Ушаков

Abashkin

et al. 2021

Požarovzryvobezopasnostʹ

Self Cite

View full text Add to dashboard Cite

Introduction. Screens often surround openings in the floor slabs of atrium buildings to prevent the spread of fire hazards to higher floors and to improve the efficiency of smoke ventilation systems. In this article, the co-authors assess the expediency of installing screens around openings in the floor slabs and identify the best screen height values. In this article, the co-authors perform a quantitative analysis of the ability of screens to prevent the propagation of hazardous fire factors, to identify general regularities typical for a multi-level space, and to develop recommendations for the installation of screens inside public buildings. The co-authors suggest that screen height should be a solution to the following tradeoff problem: the use of screens reduces acceptable evacuation time for the floor that has screens installed and rises the evacuation time for higher floors.Rational screen height selection algorithm. The co-authors propose the following algorithm for the two-stage selection of the rational screen height. At the first stage, the evacuation problem is resolved. As a result, evacuation completion time is determined for emergency exits. Further, acceptable evacuation time and the time needed to block emergency floor exits are identified for a particular type of a fire alarm system.At the second stage, the dynamics of hazardous fire factors in building rooms is assessed for various screen heights. As a result, the rational height of screens is established for the evacuation time to remain positive.Conclusions. Screen height values cannot be determined in advance. Each case requires an individual approach that entails the resolution of evacuation problems and the tracking of the dynamics of hazardous fire factors in buildings that have multi-height spaces. These ideas are in line with the concept of flexible regulation of fire protection systems designated for construction facilities.

show abstract

Section: анализ результатов моделированияunclassified

Screens surrounding openings in floor slabs of public buildings

Prisadkov

Ушаков

Abashkin

et al. 2021

Požarovzryvobezopasnostʹ

Self Cite

View full text Add to dashboard Cite

show abstract

“…Àðõèòåêòóðíî-ñòðîèòåëüíûå ðåøåíèÿ, ÿâëÿþùèåñÿ ïðåäìåòîì îõðàíû, îãðàíè÷èâàþò ïðèìåíåíèå ìåòîäèêè ðàñ-÷åòà ïîaeàðíîãî ðèñêà. Â òàêèõ ñëó÷àÿõ íåîáõîäèìà ðàçðàáîòêà àëüòåðíàòèâíûõ ìåòîäîâ îöåíêè ïîaeàðíîé áåçîïàñíîñòè, â òîì ÷èñëå îöåíêè ïîaeàðíîãî © Ïðèñàäêîâ Â. È., Åðåìèíà Ò. Þ., Áîãäàíîâ À. Â., Ñóøêîâà Î. Â., Òèõîíîâà Í. Â., 2018 ÁÅÇÎÏÀÑÍÎÑÒÜ ÇÄÀÍÈÉ, ÑÎÎÐÓAEÅÍÈÉ, ÎÁÚÅÊÒÎÂ ðèñêà, è ìåòîäîâ ñîâåðøåíñòâîâàíèÿ ïðîòèâîïîaeàðíîé çàùèòû îáúåêòîâ êóëüòóðíîãî íàñëåäèÿ [13][14][15][16][17][18][19][20][21].…”

Section: ââåäåíèåunclassified