The Effect of Stair Width on Occupant Speed and Flow of High Rise Buildings

This is a fire engineering project thesis on effect of stair width on occupant speed and flow of high rise buildings. This research investigates the influence of stairwell width on velocity and specific flow of occupants descending stairs during building evacuations. It examines data collected by the National Institute of Standards and Technology taken from eight different stairwells during unannounced fire drills in four buildings. You can also Subscribe to FINAL YEAR PROJECT'S by Email for more such projects and seminar.



Based on the raw data given by NIST the velocity, density, and specific flow were calculated for each occupant on every floor in which data was collected. Though data was noisy, results demonstrate that there is a linear trend between density of occupants in a stairwell and the velocity they descend at. Use only for your reference and help. Thanks to the author.

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There is additionally a parabolic trend between density and specific flow of occupants on stairs. whereas no correlational statistics was found, well dimension will appear to influence the speed and specific flow of occupants since the well with the littlest effective dimension found occupants traveling slower. As well, the correlations within the SFPE vade mecum, developed by Viscount Nelson and Mowrer regarding speed and specific flow, were found to be Associate in Nursing higher limit on the information that was analyzed.


Author:-Blair, Alyson Janna

Source:-DRUM

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