What are the design requirements for the elevator hall with multiple elevators in the office building?

The entrance to the elevator hall of an office building is often crowded, because there should be 10 or even 20 times more people at the entrance at peak hours, while the crowd at the super high-rise sometimes reaches 60-80 times, so it is impossible to make the elevator hall very wide, because there is no need for it, and we often see that there are fire doors installed on the first floor, which will further narrow the entrance and make the problem even bigger.

So first, fill your mouth. In addition, it is best to have no more than six elevators in a group. Less than 4 sets is better. However, there are a large number of elevators in super-high-rise buildings, so it should be noted that people coming from one direction are likely to bring too much pressure to the lobby, so it is best to have two entrances, and if necessary, you can enter from all directions, otherwise there will be no business in the lobby.

Among many buildings over 200 meters high, it is often the landmark of the city. Because it is high, it is generally thicker, and the construction area of each floor is very large. There are many elevators, which occupy a lot of core pipes, and there are many people on the first floor. So sometimes you can set up a double lobby, that is, the lobby on the first floor and the lobby on the second floor, to solve the evacuation and congestion. In the lobby on the first floor, an escalator is set up to reach the lobby on the second floor.

There is another way, by setting a certain number of through elevators in the lobby to the air lobby, such as 100M or more, the elevator cylinders can be used in an overlapping way, thus saving the size of the core cylinder, saving the area and improving the utilization rate. This kind of direct elevator is difficult to handle in the elevator hall because of the large number of people, or it can be solved directly on the side of the hall. The following example is ideal.