Escalator Pre-InstallaTIon InformaTIon

Escalator Pre-InstallaTIon InformaTIon

The following points should be taken into consideration when installing escalators in projects:

1. Height

Escalator height is the difference between two floors of a building, calculated from the finished surface elevation of the lower floor to the finished surface elevation of the upper floor.

2. Escalator Angle

The angle of inclination of an escalator can be 30 or 35 degrees. Obviously, escalators with an angle of 35 degrees require less horizontal length compared to escalators with an angle of 30 degrees. Note that according to the standards, only 30 degree angle can be selected for heights over 6 meters.

3. escalator width

The standard width of escalator steps is divided into three categories: 600 millimeters, 800 millimeters and 1000 millimeters. The total width of the device corresponding to each of the steps is 1200, 1400 and 1600 millimeters respectively, and the total width of the construction pit corresponding to each of the steps is 1260, 1460 and 1660 millimeters.

4. horizontal length (L length)

The horizontal length is determined according to the elevation after selecting the appropriate angle according to the formula for each angle. The horizontal length is equal to the distance between the two building beams on the lower and upper floors.

5. ceiling clearance.

An opening of suitable width and length must be provided for the installation of the escalator on the upper floor. The width of the opening shall be equal to the width of the entire escalator(s) and the length of the opening shall be designed so that the vertical height between the steps under the existing ceiling is never less than 2.30 meters. This vertical height must be taken into account to ensure safe headroom for occupants.
NOTE: To calculate the length of the roof opening, the thickness of the top floor is required

6. hole drilling

A porthole of suitable width and length shall be provided for the installation of the escalator on the ground floor. The width of the walkway of the vestibule is equal to the width of the entire escalator(s) and the length should be designed so that the bottom of the beam can be located below the surface of the lower floor. As a result, the escalator floor slab will be at the same level as the finished surface of the ground floor.

7. Center support

For escalators with a level height of more than 6 meters, a central support should be provided to prevent deflection in the middle of the escalator.

8. Number of horizontal steps

For passenger safety, each escalator should have a certain number of horizontal steps at entry and exit. This allows users to stabilize and maintain their balance by placing their feet on a suitable horizontal surface when entering and exiting the escalator. The minimum number of horizontal steps at the entrance and exit of each escalator shall be 2 and the maximum shall be 4.

9. Nominal speed of the escalator

According to EN 115-1:2017, the rated speed for an escalator with an inclination angle of 30 degrees shall not exceed 0.75 m/s. For an escalator with an incline angle of 35 degrees, the rated speed should not exceed 0.5 m/s. The most common rated speed for 30 degree and 35 degree commercial escalators is 0.5 m/s, and on 30 degree infrastructure the rated speed may deviate up to 0.65 m/s.

10. Loads acting on the building structure

The loads exerted by escalators on the building structure include the self-weight of the escalator, live load and dynamic load. A safety margin is then calculated and added to the total load. The final result is applied to 3 points.
The two main loads act on the structural beams located on the lower and upper floors. In escalators with a level height of more than 6 meters, a central support must be provided to prevent deflection in the middle section. The third load is applied to the center support.