The code recognizes this and has 2 factors to use. values. An exit can also lead to an external escape stair, a flat roof or access deck giving access to a place of safety. 33 Fall 2010. Where the escape stair which has a total rise of more than 1.6m, every part of the external wall including fixed windows or glazing, self-closing fire doors (other than a door opening from the top storey) or any other opening not more than 2m from the escape stair, should have a short fire resistance duration. If the designer, building owner, or other involved party knows the expected number of occupants may be higher than the calculated number of occupants, then that number should be used as the occupant load. They should be located in either: However it is not necessary to provide a temporary waiting space in a protected zone where the storey has level or ramped egress to a place of safety or on an external escape stair with a total rise of not more than 1.6m. It is calculated by applying the requirements of Section 1004 which we will get into. Table2.13. The clear opening width at doorways is measured in accordance with the diagram below: Figure2.7. The escape stair should not narrow in the direction of escape. The effective width of escape stairs is based on the number of occupants who will use each escape stair and the resultant figure is known as the appropriate capacity (AC). You must log in or register to reply here. This load is the number for which the means of egress system is designed to. This type of electric locking should not be used on exit doors and doors across escape routes. where the corridor provides at least 2 directions of escape and is more than 12m in length between the exits it serves, it should be divided in the middle third of the corridor. Calculating occupant load can be thought of in three steps: Select an occupant load factor. Table 1004.5. In order to calculate the occupant load within an area of a building correctly, the code establishes two methods: (1) Areas without Fixed Seating (Section 1004.1.2), (2) Areas with Fixed Seating (Section 1004.4). Design Challenge 6360 Designers generally achieve this by providing independent routes of escape either directly to a place of safety, or through an adjacent compartment or protected zone. The number of escape routes from a room or storey exits relates to: the use and occupancy profile within the building, the height of a storey above the ground or the depth below ground, and. Such a system enables two or more stages of alarm to be given within a particular area, and, the escape stairs should be entered from a protected lobby, and, every storey should be a compartment storey, and, if the building has any storey at a height of more than 25m, every storey should be protected by an automatic life safety fire suppression system (see guidance to Standard 2.15), and. This type of locking device is released mechanically by a single action applied to the door lever handle or push pad to allow people familiar with the building to escape in an emergency. All rights reserved. PDF Occupant Load Determination for Gyms, Health Clubs & Yoga Studios However it is not the intent of this exception to reduce code requirements, instead it is an alternative to address limited unique circumstances where the actual occupant load might be less than the calculated load. The values can be used to calculate human sensible and latent heat load. Not in Scope of Work A301 1 A300 1 architect office for local architecture Section 5:70-4.11 - Means of egress, N.J. Admin. Code 5:70-4.11
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lobby occupant load factor