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As many fire escapes were built before the advent of electronic fire alarms, fire escapes in older buildings have often needed to be retrofitted with alarms for this purpose. An alternative form of rapid-exit fire escape developed in the early 1900s was a long canvas tube suspended below a large funnel outside the window of a tall building.
Hong Kong law Chapter 123F, Building (Planning) Regulations, Regulation 23 sect 3 sub-paragraph (a) defined that: Subject to sub-paragraph (b), for the purposes of regulations 19, 20, 21 and 22, the gross floor area of a building shall be the area contained within the external walls of the building measured at each floor level (including any floor below the level of the ground), together with ...
A fire escape is a type of external emergency exit. Local building codes or building regulations often dictate the number of fire exits required for a building of a given size, including the number of stairwells. For any buildings bigger than a private house, modern codes invariably specify at least two sets of stairs, completely isolated from ...
A fire barrier wall, or a fire partition, is a fire-rated wall assembly that are not structurally self-sufficient. [ 2 ] Fire barrier walls are typically continuous from an exterior wall to an exterior wall, or from a floor below to a floor or roof above, or from one fire barrier wall to another fire barrier wall, having a fire resistance ...
Floor area ratio (FAR) is the ratio of a building's total floor area (gross floor area) to the size of the piece of land upon which it is built. It is often used as one of the regulations in city planning along with the building-to-land ratio. [ 1 ]
The dimensions of a stair, in particular the rise height and going of the steps, should remain the same along the stairs. [15] The following stair dimensions are important: The rise height or rise of each step is measured from the top of one tread to the next. It is not the physical height of the riser; the latter excludes the thickness of the ...
Floor plans use standard symbols to indicate features such as doors. This symbol shows the location of the door in a wall and which way the door opens. A floor plan is not a top view or bird's-eye view ; it is a measured drawing to scale of the layout of a floor in a building.
The standard is divided into three parts: ISO 13567-1:2017 [1] Technical product documentation — Organization and naming of layers for CAD — Part 1: Overview and principles