Оценка огнестойкости железобетонной ребристой плиты при комбинированном воздействии "взрыв-пожар"

Abstract

Calculations on an example of reinforced concrete ribbed plate have shown that as a result of explosion because of the arisen cracks the part of compressed concrete layer is switched off from work, and it strongly affects decrease in fire resistance of a ribbed plate. It is shown that the offered method of research of behaviour of bending elements at the combined influence "explosion-fire", allows to consider necessary parameters of reinforced concrete ribbed plate at designing and operation of designs of high threat location. The offered method also allows to predict rather safe quantity of explosive in technological process of high threat location which does not lead to catastrophic consequences.