Problems of Substantiation of Buildings and Structures Blast Resistance at Hazardous Production Facilities



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R.V. Bazaliy, Senior Research Assistant E.E. Nevskaya, Research Associate, e.nevskaya@safety.ru G.Yu. Churkin, Cand. Sci. (Eng.), Deputy Director ANO «Industrial Risk Research Agency», Moscow, Russia

Annotation:

Issues in the field of industrial safety related to the substantiation of buildings and structures blast resistance at hazardous production facilities are of vital importance. There are a number of problems related to the substantiation of buildings and structures resistance to the external explosion of clouds of the fuel-air mixture in case of accidents at hazardous production facilities. Some legal and methodical issues of the application of the probabilistic approach to substantiation of buildings and structures blast resistance are considered. Legal issues of the application of the probabilistic approach to the substantiation of buildings and structures blast resistance are related not only to the misinterpretation of town planning legislation, namely the requirements of Federal Law № 384-FZ of December 30, 2009, «Technical Regulations on Buildings and Structures Safety» with regard to the legitimacy of the probabilistic approach to buildings and structures blast resistance at hazardous production facilities, but also the minor connection of the requirements of this law and building codes with the legislation in the field of industrial safety regarding the implementation of the probabilistic approaches to ensuring buildings and structures blast resistance at hazardous production facilities. Methodological issues of ensuring buildings and structures blast resistance at hazardous production facilities are associated with the results of the assessment of blast loads on buildings and structures using the deterministic approach and the probabilistic criterion for blast resistance assessment. The deterministic approach on the criterion of the maximum possible blast load at external explosion gives the results with safe distances on baric effect far exceeding the territory of hazardous production facility itself. This in turn causes difficulties for design documentation developers. The problem of the probabilistic approach is the inconsistency with respect to the initial data of the two methods most widely used in the calculation of buildings and structures blast resistance at hazardous production facilities. This is the method for calculating the parameters of an incident blast wave based on the probabilistic criterion according to Appendix 3 of the Federal norms and rules in the field of industrial safety «General Rules of Explosion Safety for Explosion and Fire Hazardous Chemical, Petrochemical and Oil Refineries», and the method of equivalent statistical loads for calculating building structures for blast effect.

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DOI: 10.24000/0409-2961-2018-4-25-30
Year: 2018
Issue num: April
Keywords : accident resistance fuel-air mixture blast overpressure dynamic load static load dynamic factor
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