Search results
Results from the WOW.Com Content Network
The dimensions of a stair, in particular the rise height and going of the steps, should remain the same along the stairs. [14] 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 ...
It covers buildings up to two full storeys high, plus a third storey in the roof space, on good ground. In a three-storey building, the floor area of the highest storey cannot exceed half the floor area of the lowest storey. The maximum building height allowed is 10 metres (33 ft), measured from ground level to the apex of the roof. [6]
A classification for the structural system of a high-rise was introduced in 1969 by Fazlur Khan and was extended to incorporate interior and exterior structures. The primary lateral load-resisting system defines if a structural system is an interior or exterior one. [2] The following interior structures are possible: Hinged frame; Rigid frame
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]
Tube-frame construction was first used in the DeWitt-Chestnut Apartment Building, designed by Khan and completed in Chicago in 1963. [5] It was used soon after for the John Hancock Center and in the construction of the World Trade Center. A variation on the tube frame is the bundled tube, which uses several interconnected tube frames.
A stairwell or stair room is a room in a building where a stair is located, and is used to connect walkways between floors so that one can move in height. [1] Collectively, a set of stairs and a stairwell is referred to as a staircase or stairway .
A dog-leg staircase A quarter-landing, on a dog-leg staircase, is made into an architectural feature, by the use of arches, vaulting and stained glass. A dog-leg is a configuration of stairs between two floors of a building, often a domestic building, in which a flight of stairs ascends to a quarter-landing before turning at a right angle and continuing upwards. [1]
New building regulations that came in force in 2020, limited the height of buildings on cities depending on population in China.Cities with less than 3 million population cannot have structures rising above 250 m (820 ft); cities with populations greater than 3 million can have buildings up to a height of 500 m (1,600 ft).