Lifts can be hydraulic or electric.
Lifts must enable the carriage of disabled people and shopping trolleys.
A rough calculation is that the capacity lifts one person in a hundred square meters of sales space.
Lifts should always be two together(if one fails the other works normaly).
Lifts must be properly sized for passengers with luggage. Passengers with baggage takes twice as much space. If the lift is used for the entire transfer between floors to have a capacity of at least 50 passengers or more
When dimensioning lifts for hospitals, we must know exactly the number of staff and visitors as well as their need to travel between floors in the time periods. This is very important information for the calculation of the time waiting for the elevator.
The hotel has two load time periods of 8-10 times the outflow and 17-19 is the time of arrival. Waiting time should be calculated for both cases. Often the top floor of the hotel restaurant, which further amended the calculation. It is recommended that a lift for a minumum of 16 persons, which enables the transport of luggage. As an indication, the account must be a lift of 90 guest rooms. For elevators, staff notes that one such facilities needs two lifts for guests. Consideration should also be the purpose of the hotel. Hotels near airports have mostly visitors unlike the hotels in the resort.
The selection of lifts in residential buildings we need to know the number of inhabitants. To get to this information, we can consider the number of bedrooms and number of beds. To calculate the number of passengers we take a five-minute interval in the busiest time. Typically, this morning when workers go to work and younger in school at the same time. The basic rule is as follows:
The housing of one lift is intended for the tranport of furniture. This means that the capacity of the lift cabin is higher.
From the data of the structure obtained amount of passengers that the elevator will be used. To calculate using loaded five-minute interval. For office builings, for example, this morning coming to work when all passengers traveling from the ground floor to their floors. Lifts are divided into five categories. The tables are set values for each category:
When you select the appropriate category of passenger numbers and information about the lift the waiting time at the station for the lift to come is:
- 20 seconds or less, an excellent system
- 25 seconds a good system
- 30 seconds satisfactory system
- 40 seconds is a bad system
- 50 seconds or more is unacceptable system
The ISO 4190 standard for suggested values in sizing the lifts.
It is better if the lifts in the building physically together and not individually throughout the building. Such formation and group management system ( multiplex ) bring less waiting time and fewer problems when some of the lift breaks down.
Care should be taken that the spaces in front of elevators large enough to hold the passengers. In residential buildings must be at least equal to the surface area of the cabin or higher . In the case of commercial buildings, but it is best if that space is so big that it can put the number of people equal to the maximum load capacity for installed elevators and provides a protrusion of an equal number of people for elevators . The area required for one man, the ellipse dimensions of 600 x 450 mm