Numerical modeling methods for safety assessment at public facilities

Abstract

The assessment of the protected evacuation of the population from the fire zone at social facilities in the service sector on the basis of numerical modeling methods has been carried out. The time of safe evacuation of people from the object on the basis of a basic mathematical model for monitoring fire hazards for a specific social object has been regulated. Correlations between the degree of heat and the fire duration have been recorded. Partial concentration of O2, CO2, CO, HCl, measures of smoke aerosol opacity from the fire duration using “Fogard” software package configured for simplified analytical model of human flow have been captured. On the basis of the developed mathematical model of fire development design solutions that provide a secure evacuation of the population from the object have been proposed. The calculation of the blockade duration of routes and passageways for sending people out of the fire zone was made using deterministic fire indicators has been performed.

Behavior of dispersion-reinforced concrete under dynamic action

“…In dynamic tests, the concrete prisms practically broke into pieces. To photograph the samples, they had to be collected and fixed with wire [24][25][26]. For dispersed-reinforced prisms, destruction was more viscous, and the nature of the destruction directly depended on the amount of fiber in the concrete [27][28].…”

Monitoring Concrete Road Pavement Damages

“…In cases that raise doubts about the inert materials quality, their control is carried out by a construction laboratory. Special attention should be paid to the cement received by the RMS, namely, the storage conditions [5,6,7,8].…”

Control of Load-Bearing Structures of Technological Overpasses

“…Overpasses consist of intermediate, anchor and end supports, spans, traverses and ties. Technological pipelines have been laid along the entire length of the racks [15,16,17].…”