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China Unicom Wuhan Branch office building lighting design ideas

China Unicom Wuhan Branch office building lighting design ideas

Office lighting
2018/01/05 14:00

Project Overview

China Unicom Hubei Branch Jinyinhu project planning total land area of ​​43333 M2, the total construction area of ​​36621 M2, comprehensive building construction area of ​​32,694 M2, the total customer center area of ​​3107 M2, customer reception center total area of ​​820 M2. Building for the framework of the building structure, glass walls occupy most of the building facade area. Therefore, during the day, natural lighting is very good for the interior of the space. The purpose of this design is also to achieve green and energy-saving lighting through the overall and professional lighting planning.

Office lighting requirements

The general office environment is designed to accommodate staff in all forms of communication, including thinking, writing, visual and verbal communication, while office lighting should ensure that workers conduct their activities efficiently. The sense of comfort, attention and perception of the environment are closely related to the environment itself, as well as the rest of productivity. The visual effects created by lighting and its impact on visual work are the most important factors in the overall design of the office environment I. Therefore, office lighting has, from the past, only focused on adequately illuminating or not, and gradually turned to solutions to the physiological and psychological problems of workers caused by poor lighting so as to establish a working environment that can specifically improve visual acuity and inspire people. Office lighting affects the appearance and situation of the room and the user, as well as performance. Physically speaking, how to meet the quality and quantity of lighting needed for visual work; psychologically, how lighting affects the perception, impression and behavior of users, both of which must be considered in the design of the office lighting environment.

Office lighting design to be considered factors

After a preliminary assessment of an existing building, the lighting design must extensively analyze the following factors to determine the specific lighting requirements and ensure the overall design flow: 1, situational analysis of the functional requirements of human factors; 2, lighting system performance standards; 3, Construction, equipment restrictions 4, the flexibility of the system; 5, energy consumption; 6, maintenance; 7, the cost.

Therefore, the environment-related factors in the office environment are the three major aspects of lighting design: the shaping of space, the expression of psychology and the fulfillment of functions. Spatial analysis includes the understanding of space shape, furniture decoration, lighting and the surface of interior building materials. The shaping of lighting space defines the structure of space, that is, the master and slave of space as well as the relationship between the top and the periphery and the area of ​​use. Human factors Including the user's physiological status (such as age), behavioral characteristics and the psychological relationship with the environment, and this psychological expression defines the characteristics of space and expression, which affects the user's impression of space and feelings; Lighting needs corresponding to activities or visual work in a particular space. Light can change the visual quality of a space, and this contribution clearly overrides the simple concept of work vision. Although the design of office space is dominated by work, the psychological impact of lighting on space users' satisfaction and comfort should also be taken into consideration. There are basically two types of ambient lighting systems when analyzing the space and activity needs of an office environment. Therefore, unintended enhancements or introductory effects are commonly used: general reading or work; no specific motivation and attentional guidance; allowing furniture and workstations to change their location without changing the lighting configuration; creating a public sense of openness Privacy.

In addition, the quality and demand for space lighting are different in different age stages. The research shows that the job satisfaction increases with the increase of illuminance. However, after reaching a certain illuminance, the illuminance increases and the satisfaction begins to decrease. Excessive and unacceptable standards of illumination affect not only work efficiency but also eye health and impairment of the environment. The choice of illuminance value is based on the work performed and the age of the worker, and usually requires more illumination for visual work that is more difficult or sophisticated; older persons require more illuminance (visable form) than younger persons; and the study finds again Full-time workers need less illumination than short-term workers due to the former having enough time to adapt to the environment.

Table 1. Age and lighting requirements Table 2. Illumination and color temperature
Age lighting demand
<40 100%
40 to 50 150%
50 to 60 200%
Ambient illumination for color temperature
100 lux 2400 ~ 2900K
200 lux 2700 ~ 3500K
500 lux 3000 ~ 6000K
750 lux> 3100K
1000 lux> 3300K

Building office lighting ideas

The first way to use direct lighting, the general use of double tube 2 × 28W rectangular light fixture, due to larger openings, resulting in glare and VDT screen reflection of the higher; due to the office building ceiling height is not generally high, the installation of large lamps And far away from the brightness ratio is more serious, easily lead to uneven illumination of each face and high screen interference shadow interference. It is recommended to use smaller lamps (for example, two lamps) to achieve the uniform effect of light distribution. The general illumination configuration should be taken according to the location of the work area, and different (less) illuminance should be given to the walkway or non-work space. Arranged on both sides of the work table, the lamp is parallel to the sitting position to eliminate the reflection of the light curtain (that is, the reflection of the light generated on the screen; use of low-brightness lamps will make the ceiling and the wall too dark, ; The larger the office area, the more intense illumination of the visual focus should be provided, with a brightness ratio of at least 10: 1 to the background.

The second way of using indirect lighting illumination can create diffuse, no shadow, no light curtain reflection and screen highlights of the lighting environment, but also reduce visual clarity and depth perception, by vivid colors, emphasizing the lighting and the wall Lighting and use of the resulting improvements, and work lighting and use, the illumination can be adjusted down to 300lux, to provide a comfortable VDT visual environment; ceiling reflectivity should be above 75%, and for the flat diffuse reflection in order to avoid reflective bright spots; However, the lighting should be wide and not too close to the ceiling (at least 60 cm). The spacing between the lamps and lanterns should be able to maintain the brightness ratio of the ceiling light and darkness within 8: 1. For office work lighting, it can directly illuminate the work surface, Creating an inhomogeneous lighting environment that most people like and can thereby reduce the amount of lighting needed for the overall environment. If set according to the environment automatically adjusts, according to personal visual needs can be adjusted according to the amount of light is better. But the lamp height should be 30 to 35 cm, in order to avoid direct glare; with the lamp should be adjusted on both sides instead of the vertical adjustment to avoid light interference adjacent to the proposed opaque reflective shade should be used to shield the light source, Reduce the contrast caused by eye fatigue;

Leadership office, in charge of office design ideas

The optimum illumination for this type of office is 450 to 550 lux, and its ability to accept an ambient illuminance of 300 to 350 lux plus additional working lighting is also known as local lighting (which is more economical than increasing the overall wattage). Working lighting plus low illumination general lighting; individual or continuous linear wall lighting to create an open and bright interior appearance; emphasizing features such as artwork or creating wall light patterns to provide visual interest; avoiding dark shiny surfaces (Or padded glass) reflects the work of desktop lighting reflection glare; the direct impact of lighting and desktop positioning to visual quality and lighting effects, light from both sides of the workers is appropriate.

Conference room or training room lighting In addition to creating the impression of clear vision or open space, incandescent (dimmable) and fluorescent lamps can be combined to provide greater flexibility of use. Incandescent lamps allow the presenter to reduce the local ambient illumination, such as the front half, to match the projector or slide projector and create a warmer feel. Fluorescent lights provide general ambient illumination. Wall lights illuminate vertical surfaces. Spotlights or fluorescent lights emphasize writing whiteboards. Depending on the type of use, the overall space lighting is directly or indirectly illuminated, dimmable and controllable with different light levels in the front and back areas; illuminating the interior and exterior with full-area lighting; providing work lighting in whiteboards and writing desks; Emphasize lighting on wall displays; control light interference from walkways, windows or projectors.

Office and conference room and other places lighting design considerations

Any worker not only needs good office work lighting, but also needs to sense the lighting modality associated with the space image. Work lighting provides users with the added benefit of being in addition to the overall lighting. Such personal control can increase spatial identity and boost morale.

In addition, the most obvious way to enhance the effectiveness of office lighting is natural daylight. The study found that natural lighting or not affect the environmental satisfaction of workers; the vast majority of workers also agree that the window view of the importance of accessibility. The general space configuration often only or most of the lighting planning as a few offices in charge of use. If you can give priority to the large office area configured in front of the window, coupled with appropriate lighting design, so as the most effective office lighting environment. Therefore, it is advisable to properly group and model space lighting for window-ready offices, and care should be taken to add blinds or rashers to meet the lighting's strength and weakness controls and changes.