© Copyright 2020 La Grazia Srl - All rights reservedMoving Walk Information
La Grazia Inc. manufactures durable, safe, and elegant moving walks and main components with reliance upon Italian taste and the world’s cutting-edge technology, compliant with global standards. This company creates eco-friendly masterpieces to meet the requirements of urban life by utilizing modern technology and up-to-date management systems.
Our moving walks can be customized with different materials & extra options to suit customer’s needs & project specifications. La Grazia products can be manufactured to operate in every climate to meet the requirements of each individual environment and can be made to keep up with any project’s workload based on its utilization.
1. Moving Walk Classification Based on Utilization
Moving walk are divided into two categories based on their utilization:
1.1. Commercial
As can be understood from the name, this type of moving walk is installed in commercial buildings, such as small and large shopping malls.
1.2. Infrastructure
This type of moving walk is utilized in high-traffic environments, such as subway stations, airports, train stations, overpasses, etc.
2. Moving Walk Classification Based on Installation Environment
Moving walks are divided into three categories based on their area of installation:
2.1. Indoor
Indoor moving walks are used in closed environments where the ambient temperature is controlled and they are not exposed to elements such as rain and snow.
2.2. Semi Outdoor
These types of moving walks are installed outside the building; nonetheless, a roof has been designated above them to protect against the direct downpour of rain and snow. Obviously, since these moving walks are installed outside the building, they are not in a temperature-controlled environment, and therefore, based on the geographic location of the installation environment, in comparison to the indoor moving walks, some extra options will be added to them, such as cooling system, which is used for high temperatures, heating system, which is used for low-temperature conditions, etc.
2.3. Fully Outdoor
These moving walks are installed outside the building without any roof or other overhead covers. As a result, they are completely exposed to the elements, such as rain, snow, etc. These types of products will have a vast set of features, i.e. hot-dip galvanized truss treatment, higher protection rate for motor, and electromagnetic insulation, etc. Even though this type of device is capable of functioning in all weather conditions, it is recommended to install a roof over them for safety concerns. For example, in case the moving walk is installed without a roof, the passengers may be forced to use it with their umbrellas spread over their heads in rainy or snowy conditions, which may cause them to lose balance or trip over.
To enhance the performance of the escalators, based on the geographical location and customer requirements, there are specific extra options to choose from. Please contact La Grazia for more information.
To install an escalator in projects, the following items should be considered:
1. Elevation Height (H)
Elevation Height is the difference between two building floor levels which is calculated from the finished surface level of the lower floor to the finished surface level of the upper floor
2. Moving Walk Angle (A)
Moving walks are divided into two categories in terms of angles:
2.1. Horizontal Moving Walk
This type of moving walk is manufactured with 0 to 6 degree angle of inclination and is used for long horizontal directions.
2.2. Inclined Moving Walk
This type of moving walk is used for the transportation of passengers between floors and can be selected either in 10, 11, or 12 degrees.
3. Moving Walk Width (a)
The standard moving walk pallet widths are divided into two categories: 800 millimeters and 1000 millimeters. The total device width (c) corresponding to each of the pallet widths is 1400 millimeters and 1600 millimeters respectively and the total construction pit width (d) corresponding to each of the pallet widths is 1460 millimeters and 1660 millimeters respectively.
4. Horizontal Length (L)
The horizontal length is determined based on the elevation height after choos¬ing the appropriate angle in accordance with the formula for each angle. The hor¬izontal length is equal to the distance between two construction beams located on the lower and upper floors.
5. Ceiling Opening (CO)
In order to install a moving walk, an opening must be considered on the upper floor with suitable width and length. The opening width is equal to the total moving walk(s) width and the opening length must be designed in a way that the vertical height between pallets tread surface under the available ceiling is never less than 2.30 meters. This vertical height must be considered to provide safe headroom for passengers.
NOTE: To calculate the ceiling opening length, the upper floor thickness (FT) is required.
6. Wellway Opening (WO)
In order to install a moving walk, a pit with suitable width and length must be con¬sidered on the lower floor. The wellway width is equal to the total moving walk(s) width and the length must be designed in a way that the lower section of the truss can be located beneath the surface of the lower floor. As a result, the moving walk floor plate will be at the same level as the lower floor finished surface.
7. Middle Support (Detail S)
For moving walks with the long horizontal length, at least one middle support should be considered to prevent buckling in the middle section.
8. Nominal Speed of Moving Walk
According to EN 115-1:2017, the nominal speed of a moving walk with an angle of inclination greater than 6 degrees, must not exceed 0.5 m/s and the nominal speed of a moving walk with the angle of inclination 0 up to 6 degrees must not exceed 0.75 m/s.
For inclined moving walks, the common speed is 0.5 m/s and the recommended nominal speed for a horizontal moving walk is 0.65 m/s especially where the baggage carts are carried on the moving walks.
10. Exerted Loads on Building Structure
The loads which moving walks exert on building structure include moving walk self-weight, live load, and dynamic load. A margin of safety is then calculated and added to the total load. The final result is exerted in up to 4 locations.
The two main loads (R1 – R2) are exerted on the construction beams designed in upper and lower floors (Detail G). For moving walks with high elevation heights, one or two middle support should be considered to prevent buckling in the middle section. The third and fourth loads (R3 – R4) are exerted on the middle supports.
Moving Walk Type: GRZ – IM
Middle Support (Detail S)
Construction Beam (Detail G)
Suspension Point Detail (Detail Z)
Moving Walk Width Measurements
Middle Support Heights
Middle Support Lengths
Loads exerted on the Structure
