Do you actually have tables and chairs in the lobby? Depending on what amenities are present, the hotel might have other uses as well. The duty holder also has a duty under the Management of Health and Safety at Work Regulations 1999, to assess the risks to workers and any others, who may be affected by their work or business. Obstructions - where a floor is divided by fixed seating or other fixed obstructions, the travel distance should be measured by way of the shortest route along open seatways, gangways or circulation areas. The further occupants need to travel within a building to reach a protected door the greater the risk from the effects of fire. September 2019 Life Safety June 2021 As always, when making such a determination, it is best to discuss it with the Authority Having Jurisdiction. Calculating occupant load can be thought of in three steps: There is a common misconception that the calculated occupant load is the maximum number of occupants the space can contain. A protected zone may or may not contain an escape stair and is intended to protect occupants during their evacuation to a place of safety. Smoke and flames rising through such an opening in a floor may impede evacuees from leaving the building. (Applicable to ANSI/BOMA Z65.1-2010), BOMA Best Practice# 21- Do the BOMA Standards offer any guidelines with respect to occupant density? Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse! The minimum width of each escape stair will be 1908mm. The protected zone should form a complete enclosure having at least a medium fire resistance duration. Except in Use Group A-2 (nightclubs), the occupant load may be equal to the total number of occupants for whom exit capacity is provided as determined by (f)1 above. Table2.11. 25 one bedroom apartments, 540 SF each. In chapter 10 the occupant load is used to design the means of egress system however other chapters of the code can use this number to determine other required features within a building or structure. In the case of a building which has only 1 direction of travel, the travel distance should be measured to a protected door giving access to an escape stair or a place of safety. For example, a control vestibule for security purposes would be more feasible in a data center than in an educational occupancy. What is the minimum effective width needed for escape stairs in an office building with 6 storeys and 3 escape stairs and which escape is based on simultaneous evacuation.
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