Construction instructions:
Double stairs
⑴ Features: Wide application, uniformity, symmetry, elegance and solemnity.
⑵ Layout position: it is arranged in the corner of the hall or in a horizontal position (there is a spiral staircase with a rest platform above 18 floor, so it cannot be used as a safety evacuation staircase).
A sloping path or road.
(1) Design requirements: (1) Generally, the slope is 8% ~ 15%, and it is often 6% ~12% in crowded places; (2) Set anti-skid facilities.
(2) Disadvantages: The floor area is four times that of ordinary stairs.
Elevator installation conditions: ① residential buildings with more than 7 floors; ② High-rise buildings; ③ Special functional requirements: hospitals, shopping malls, etc. Elevators and escalators cannot be used for safe evacuation.
transportation hub
(1) Composition: foyer and atrium.
⑵ Function: Considering the distribution of people, the change of direction, the excessive space and the connection of passages, stairs and other spaces, it is necessary to design space forms such as foyer and lobby to play a transitional role between transportation hub and space.
(3) Design requirements of the foyer: A has enough area to accommodate scattered people; B besides considering the spatial scale, it is also necessary to consider the spatial environment and artistic atmosphere formed by space-oriented C, which embodies a certain spatial artistic conception and a certain spatial form and size; The foyer is the transition between indoor and outdoor space.
Functional zoning of public buildings: primary and secondary internal noise and quietness.
public building
(1) characteristics of people flow: (1) continuity? -hospitals, shops, hotels, etc. ② Centralized-theaters, canteens, gymnasiums, etc. ③ Comprehensive-school exhibition buildings, etc.
(2) Personnel evacuation mode: a plane organization mode-small and medium-sized personnel simply avoid unnecessary up-and-down activities and achieve the purpose of convenience; B three-dimensional organization mode-large and medium-sized people with complex functions can't solve the traffic streamline problem only by plane.