| dc.description.abstract | The wide application of glass facades in vertical buildings is a concern when it
comes to fire safety. This system loses its integrity easily and facilitates the spread of
fire between vertical compartments. In order to guarantee the vertical isolation of
adjacent compartments in this type of building, Brazilian standards provides passive
protection provisions, such as fireproof sealing, horizontal extensions of 0.90 m and
vertical extensions of 1.20 m, using non-combustible elements. In several countries, it
is well known that sealing fire between floors is an effective measure to prevent the
internal vertical spread of fire which become a necessary passive protection measure
in curtain walls. However, there has been limited consensus regarding the dimensions,
position, and shape of these horizontal and vertical extensions. This study presents an
assessment of the fire behavior of different vertical compartment models with curtain
walls according to the ASTM E2307 (ASTM, 2020) test using Pyrosim / FDS® software.
After model calibration, eight compartment models were simulated, four using vertical
projection and four using horizontal extension. Results showed that compartments with
horizontal extensions were more effective with smaller dimensions when compared to
vertical projections. A horizontal extension of 0.90 m has the ability to isolate the
spread of fire between two adjacent rooms. A horizontal extension of 0.60 m is more
effective than a vertical projection of 1.20 m. A horizontal extension of 0.40 m has an
efficiency close to a vertical projection of 1.20 m. Therefore, current requirements by
Brazilian standards do not present the same effectiveness when compared to each
other. | en |
