Install elevators in old buildings? You can’t help but know these!

1. Evaluate the structural safety of existing buildings before installing elevators

Are there structural safety hazards in existing buildings, and are they suitable for installing elevators? The structural safety of existing buildings must be assessed before installing elevators. When necessary, the building structure safety reinforcement should be carried out while installing elevators to eliminate potential safety hazards. After installing an elevator, the integrity and structural safety of the existing buildings cannot be affected.

2. Less or no renovation of buildings

The installation of elevator hoistway foundation and steel structure hoistway design must be integrated with the building, and the building renovation caused by the installation of elevator should be taken as far as possible under the premise of ensuring safety.

Third, to find an elevator company to install, you must first check the qualifications

When looking for an elevator company to install, you must first check the qualifications and find a company with experience in installing elevators. The elevator installation involves a hoistway installation company, so when signing an agreement, find the manufacturer to install, avoid signing contracts with several companies, and avoiding problems with each other. .

Fourth, the problem of emergency rescue channels

In the elevators installed in old buildings, due to objective reasons such as the structure of the building, rescuers cannot reach the locations and landings where emergency operations are implemented unimpeded. In response to this objective problem, on July 30, 2018, the State Administration for Market Regulation issued the "Implementation Opinions on the Relevant Requirements for Elevator Rescue Channels" to ensure that rescuers can open access to elevator rescue locations and services through keys or compulsory means. The doors and windows of the landing are blocked, and emergency rescue drills are carried out in accordance with the regulations, but this should be approved by the relevant owners and requires the understanding and active cooperation of all owners. At the same time, when the elevator fails, the owner's consent or forced entry into the owner's home is required for rescue.

Five, the emergency alarm device setting problem

Since many old communities do not have formal property management agencies and have no duty rooms, it is difficult to install intercom devices. At present, the common practice of inspection agencies is to require the emergency alarm device in the car to be connected to the duty room of the maintenance unit or the mobile phone of the maintenance personnel or the home of the owner who has been on duty for a long time.

6. Maintenance and management issues after the elevator is used normally

Elevator maintenance is an important link to ensure the safe and reliable operation of the elevator. During the use of the elevator, a qualified elevator maintenance company needs to regularly maintain the elevator. However, in old communities, there is often neither an owner committee nor property management, which leads to unclear responsibility for elevator safety.

Seven, the quality and maintenance of elevator steel structure hoistway

The steel structure elevator shaft is very popular in elevator installation projects due to its low construction interference and high speed. The installation of elevators in old buildings requires the production and installation of steel structure shafts, which involve many issues such as foundation, steel structure strength, rigidity, force safety of connection with the building, and personnel rescue. It is understood that the elevator steel structure hoistway currently has no relevant national standards and industry standards, and the quality is uneven. In addition, the elevator steel structure hoistway is not part of the elevator, nor is it within the scope of the elevator's regular inspection.

Eight, the installation of elevator electrical parts requires consideration of ventilation and cooling issues

Since the installation of elevators in old houses is restricted by the original building structure, most of the hoistways with elevators are installed independently outside the building, and the hoistways are all exposed to the outdoor environment, and glass exterior finishes are mostly used. The outdoor temperature in midsummer in the south can reach 40°C, and the high temperature in the hoistway will affect the stability of the elevator electrical equipment, accelerate aging, and even frequently "stroke strikes". Therefore, it is necessary to consider the ventilation and cooling of the electrical components of the elevator, such as the installation of air conditioners in the car, and the installation of exhaust fans next to the control cabinet.

Nine, noise issues

Machine room-less elevators are the new favorite of installing elevators, and the control cabinet is generally set up next to the door on the top floor of the building. At night, due to the reduction of background noise, the noise of the electrical components (contactors) of the control cabinet seriously interferes with the sleep of the residents on the top floor. Although the elevator inspection regulations and standards include the requirements and measurement methods of room noise, most of the installed elevators are elevators without a machine room, and this inspection item is not applicable. It is recommended that the electrical components (contactors) should be specified as quiet electrical components in the purchase contract for the installation of elevators.

At last,

The choice of elevator products. Because the occasions where elevators are installed in old buildings belong to public places, elevator products must choose traction type passenger elevator products, do not choose home elevators, because home elevators have performances in all aspects such as service life and height increase compared to traction type passenger elevators. Some descents, for example, the rope diameter of the traction machine is not less than 40 times than that of the ordinary elevator, and the household ladder traction machine only requires 25 times, which has a great impact on the life of the wire rope.