An Experimental Study on Pressurization Smoke Control System in Staircase
When the air inlet and the opened doors are on the same floor, the effect of the dynamic pressure control system is small. When a floor that opening the doors is moved away from the air supplied floor, it shows that installing a dynamic pressure control system reduces the influence of dynamic pressure near air inlet by about 54%.
Opening doors both staircases and vestibules did not have a large effect on pressure variation within staircases; rather, pressure conditions within staircases tended to be maintained.
To implementing smoke control by staircase pressurization, installing only a single differential pressure adjustment damper in staircases maintains a higher pressure than the setting for differential pressure adjustment damper (60 Pa), possibly obstructing door opening.
KeywordsPressurization smoke control system in staircase Performance confirmation test Experimental study Real-scale model experiment
This research was conducted with the support of the Tokyo University of Science and the “Study on Fire Protection and Improvement in Existing Buildings for Legal Conformity (2016–2018)” by the F11 Project of the Standards Maintenance Promotion Project. We also express our appreciation to the members of the Institute for Building Research and Mr. Yamana for their cooperation and advice related to these experiments.
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