How to do a good job in lighting design of corridors and stairwells

Corridor and stairwell, as the passage for people to flow and evacuate in the building, are indispensable parts of the building. As a place where people move rather than work or stay for a long time, people do not have high requirements for the lighting of corridors and stairwells. "It doesn't matter if it's brighter or darker." Designers often arrange several lamps according to their feelings when arranging lamps, and seldom carefully consider whether the illumination is enough. On the other hand, because the lamp manufacturer can't provide the light distribution curve or related technical data, it also lacks basic calculation conditions. The consequence of sensory lighting is often that there is a big gap between the actual situation and the specification requirements, while the illumination of emergency lighting in corridors and stairwells is a mandatory requirement and must be treated with caution. The author thinks it is necessary to discuss the lighting design of corridors and stairwells, and hopes to draw some universally applicable conclusions through representative cases.

The lighting design of corridors and stairwells is an indispensable part of architectural lighting design, which should be coordinated with the overall function or use nature of the building. The visual environment it provides, like other indoor lighting, should not only meet the physiological requirements, but also meet the psychological requirements, and choose the appropriate lighting method according to the specific situation.

According to the separation of structural beams, ceiling lamps are arranged in the corridor. This method is most commonly used in engineering design. It is suitable for staircases or corridors of residential buildings such as dormitories and apartments or industrial, teaching, office and scientific research buildings, especially on the outer corridors. The ceiling lamp is equipped with dust-proof gasket, which has good sealing performance and can prevent small flying insects from entering the lampshade. Suitable for places with dust and mosquitoes in the outer corridor. The illumination level of this lighting method is not high, but the cost is low. This kind of lamp produced by regular manufacturers has good light transmission performance, soft light, difficult discoloration, high efficiency and good effect. Try to choose high-quality products when designing. In this way, the illuminance value can be calculated by using the point illuminance meter algorithm.

Adopt embedded downlight. This method is suitable for hotels, hotels or other entertainment places with suspended ceilings or corridors, stairwells, dormitories, apartments and other residential buildings. The light source of embedded downlights generally adopts low-power energy-saving lamps with warm colors, which are used to create a warm, peaceful or romantic atmosphere in order to coordinate with the overall function of buildings. Downlights can be divided into vertical downlights and horizontal downlights because of the different depth and width of lamp cups. Each type has many styles, and the light distribution curve is different, which generally belongs to narrow light distribution or medium light distribution lamps. When designing and selecting lamps, we should pay attention to the ratio of distance to height to avoid uneven illumination in the corridor and obvious light spots. The ceiling height is 2.

5 m, for example, generally speaking, the lamp spacing of middle light distribution lamps is 1.75 ~ 2.5 m, and that of narrow light distribution lamps is 1.25 ~ 1.75.

M. In this way, the illuminance value can be calculated by using the point illuminance meter algorithm.

The ceiling of box fluorescent lamp shall be installed or the ceiling of grid fluorescent lamp shall be uniformly arranged. This method has high illumination and is suitable for the inner corridor of office, scientific research and teaching buildings (the outer corridor should be sealed and dustproof) to create a bright and efficient lighting environment. The average illuminance of corridors and stairwells can be easily calculated by coefficient method.

In addition to the above three ways, the corridors of some special buildings should also consider special needs. For example, the corridor lighting design of hospital ward building has special requirements. "Corridor lighting should be coordinated with the lighting of its adjacent rooms, so that people will not feel too much difference in illumination when entering the room through the corridor. Therefore, the illumination in the corridor should not be lower than 70% of the illumination in the ward.

At the same time, it should be noted that the night light cannot enter the ward, which will affect the patient's rest. Lamps and lanterns should be arranged between two wards, not directly opposite the door and above the door. Use the night light at the foot of the corridor at night, and the light source should be white LED.

Or use a ceiling lamp that does not affect the ward. Lamps and lanterns in the corridor should be arranged on one side of the corridor to avoid the patient lying on the patient's cart from having a dazzling feeling of irritability when passing through the corridor. "

Therefore, corridors and stairwells should adopt appropriate lighting methods according to the use function of buildings.