NUMERICAL MODELLING TO DETERMINE APPROPRIATE LEVELS OF GLAZING FIRE RESISTANCE

摘要

Thermal insulation of glass may be required for preventing fire spread and in some instances forprotecting escape routes. One option when specifying the glazing system is to select products on the basisof their performance in a fire resistance test, which assumes fully developed fire conditions. Analternative, fire engineering approach is to demonstrate that a glazing system with a lower fire testperformance is nonetheless sufficient for a particular application by modelling realistic fire scenarios andcomparing the predicted thermal conditions against appropriate criteria. The paper illustrates, by using acase study example, how both a zone and a CFD model can be used to support this approach and explorestheir relative benefits and limitations.