Loadings which destroy building structures in consiquence of emergency explosions

Orlov, G. G.; Korolchenko, A. D.

doi:10.18322/pvb.2016.25.03.45-56

Cited by 3 publications

(1 citation statement)

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“…Follows from results of work and results of works [9,10] that by means of panels it is possible to reduce efficiently pressure of internal explosion and to protect not only load-bearing MATEC Web of Conferences 193, 02009 (2018) https://doi.org/10.1051/matecconf/201819302009 ESCI 2018 frames, but also the protecting designs from a brick and concrete and also panels of the smaller size.…”

Section: Resultsmentioning

confidence: 99%

The use of a safety construction for explosion relief venting

Gorev

2018

MATEC Web Conf.

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The emergency venting of gaseous deflagration is widely used to prevent severe consequences of a confined explosion. Processes of vented deflagrations have been studied extensively and experimental data has been analysed. It is determined that venting starts after a safety construction is destroyed and the area of expiration of gases is opened. In the protecting structures of buildings of explosive production it is necessary to establish protective designs. In the work, triplex panels are considered as protective designs. Process of opening and driving of the panel with release of the area for a depressurization is studied during explosion development. In the work, questions of influence of pressure of opening and speed of explosive combustion at pressure peak size are investigated. The criterion for determination of efficiency of opening of panels is injected.

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Section: Resultsmentioning

confidence: 99%

The use of a safety construction for explosion relief venting

Gorev

2018

MATEC Web Conf.

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Processing of experimental data describing internal deflagration explosions

Komarov,

Azamov

2023

E3S Web of Conf.

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This article is devoted to issues related to experimental studies of internal deflagration explosions or emergency explosions occurring inside buildings and premises. In internal emergency explosions, the main role in reducing the explosive pressure to a safe level is played by discharge openings blocked by safety structures (SS). As discharge openings, windows are often used, covered with glazed window blocks, or opened explosion venting structures (EVS). The article deals with processing experimental data obtained in the study of deflagration explosions occurring inside buildings and premises. The main features and difficulties that arise while analyzing experimental materials are described. The article considers the general methodology for processing experimental data to study deflagration explosions inside buildings and premises. Examples of processing materials from experiments performed in chambers equipped with a transparent edge allow high-speed filming of the explosive combustion process inside the chamber. The article presents a technique that allows, based on data processing on the overpressure in the explosion chamber, to obtain complete characteristics of the loads that occur in the experimental chamber during an internal deflagration explosion. The proposed technique makes it possible to abandon the transparent edge of the explosion chamber and obtain data on the explosion process based on the numerical processing of the excess pressure created in the explosion chamber. An example of processing a full-scale experiment to determine the effectiveness of a real explosion venting structure (EVS) is given.

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Determining the burst pressure of vent structures with account taken of wind loads

Korolchenko

2022

Vestnik MGSU

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Introduction. In the Russian Federation, current regulations prescribe that enclosing structures of building premises, that are not explosion-safe, must have safety anti-explosive devices to ensure safe pressure inside the building (premises) and in the surrounding space. Materials and methods. One of the most important characteristics of vent structures (VS) is their burst pressure, the value of which is determined in GOST R (State Construction Standards of Russia) 56288 “Double-glazing vent window structures for buildings. Technical conditions”; it shall not exceed 0.7 kPa. However this value doesn’t take into account the influence of wind loads on VSs, and this leads to contradictions arising between producers, designers and supervisory authorities. The purpose of this article is to determine the range of burst pressure values at which VSs will be able to perform their primary function, that is, to ensure the bursting of gas, steam, and dust-air mixtures at an early stage of an explosion and provide safe pressure inside the building. Results. In this paper, calculations of principal and peak wind loads were made according to SP (Construction Regulations) 20.13330.2016 “Loads and impacts” to find out that the pressure of 0.7 kPa strongly limits the use of VSs in different wind regions. The burst pressure of translucent VSs was then identified experimentally for several structures subjected to the effects of an internal accidental explosion. The same specimens were tested for wind load resistance. It was also noted that in the process of determining the ΔPbur, the maximum allowable pressure should be considered for the selected building type. Conclusions. As a result of the studies made by the authors, the range of the burst pressure was identified.

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Loadings which destroy building structures in consiquence of emergency explosions

Cited by 3 publications

References 0 publications

The use of a safety construction for explosion relief venting

The use of a safety construction for explosion relief venting

Processing of experimental data describing internal deflagration explosions

Determining the burst pressure of vent structures with account taken of wind loads

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