DALI system for Skyscrape in Shenzhen

Kingkey of the Night Lighting Reconstruction and Expansion Project of Super High-rise Buildings

In order to meet the current high requirements for light environment and the improvement of the city's night scene image, on the 40th anniversary of Shenzhen's reform and opening up, the city also began to pay attention to the overall night scene planning and construction. There are many high-rise buildings in Shenzhen, especially the construction of super high-rise night scene lighting. It should not only present a beautiful form, but also be as energy-saving and environmentally friendly as possible. This article discusses the construction of super high-rise night scene lighting

Various matters of attention were analyzed and a detailed study was carried out.

   In order to celebrate the 40th anniversary of reform and opening up, in 2018 Shenzhen Shennan East Road lighting project design plan, proposed the planning and design goals of show square, plastic landmark, camp atmosphere, and beautiful avenue. Under the guidance of "Shenzhen Urban Lighting Special Planning" and "Luohu District Lighting Area Detailed Planning", the project implements the urban lighting construction idea of integration of planning, design and implementation, and completed the Shennandong project in less than two months. Lighting engineering design for Luluohu section.

 The overall design scope of the project is from Hongling Road to Xinxiu Interchange, with a total length of about 3.9 kilometers, including buildings on both sides, landscape night lighting design. Among them, the key bidding section is the core section of Luohu business, from Hongling Road to Baoan South Road on both sides of the building night scene lighting improvement design, a total of 16 buildings, including the two major landmark buildings in Shenzhen, Kingkey 100, Diwang Building and other super high-rise buildings architecture.

This time, Vteck provided DALI lighting control system for Kingkey 100. The whole building uses DALI constant current and constant voltage controller to connect the building intelligent central control. For the reconstruction and expansion project of outdoor night scene lighting, it is necessary to re-organize and summarize the current deficiencies and deficiencies in the line reconstruction, lamp design, profile installation and fixation, and related issues such as curtain wall waterproofing and building safety. The starting point is to think that it can help Other similar projects provide some relevant references and references.

KingKey 100 (KK100), formerly known as KingKey Financial Center (KingKey Financial Center), high-rise

At 441.8 meters, with a total of 100 floors, it is currently the second tallest building in Shenzhen, the ninth tallest building in mainland China, and the seventeenth tallest building in the world (of course, these rankings are constantly changing over time). Located on Shennan East Road, Luohu District, Shenzhen City, Guangdong Province, my country, it was jointly designed by two world-renowned architectural design companies from the United Kingdom, TFP and ARUP, and constructed by China Construction Fourth Engineering Bureau Co., Ltd. Kingkey 100 is a world-class landmark under the Shenzhen real estate company Kingkey Group. It is also the tallest building invested and constructed by a private real estate company in China. It has maintained a number of Chinese records and world records, and won a number of world-class awards.

Its curtain wall system is internationally leading, and adopts the most advanced third-generation curtain wall system unitized curtain wall system in the world. It is pre-processed and assembled into independent unit panels in the factory, and then transported to the installation site for installation in strict accordance with the construction process. The system has many features such as high assembly precision, strong earthquake resistance, synchronous construction, waterproof and anti-seepage, and self-cleaning. not afraid

In super typhoon, in order to control the swing of the building in the wind, the designer also designed and placed two active dampers on the 91st floor of the building, which can resist the once-in-a-century typhoon.

An overview of the night scene lighting design improvement plan passed by the Kingkey 100 meeting: The north and south facades use the existing lamp troughs and lamp installation pendants, redesign the lamps to replace the original LED digital tubes, and the LED pixels have 8 pixels per meter. Spacing 125mm

Embedded 50mm*60mm aluminum alloy profiles, through the on-site curtain wall color card comparison, repeated tests, the profile color is basically consistent with the existing curtain wall through the paint spraying process, ensuring the landscape requirements during the day, not obtrusive, and achieved integrated with the building.

The difficulty lies in the east and west facades. The current situation is that the floodlights embedded in the lateral wings wash the bottom surface of the wings, which is in line with the architectural design logic. For this renovation and improvement, in the planning and design of Kingkey 100, the design method of the media façade is used to realize the linkage show of the nodes of the Grand Theater Square. in the unit

Design and installation of LED pixel lights on the glass frame of the curtain wall. So the question is, how to install and fix the lamps? How is the cable laid? Where is the switching power supply placed? The owners are most concerned about the waterproofing of the curtain wall, the safety of the building, and of course the operation right after the project is completed.

When we first contacted the owner, we found a lot of high-rise buildings and listed similar practices in an attempt to convince the owner to accept the installation of lamps on the wall. In order not to damage the waterproofing of the curtain wall, we thought about avoiding the method of nailing and using structural adhesive and steel wire double insurance to fix it. For this reason, we also did some destructive tests. Suspend heavy objects for proven feasible purposes. In fact, as owners, they are not at ease. This is not supported by theoretical data. Once an accident occurs, no one can take responsibility; for a while, the project cannot be advanced. .

To this end, after coordination and discussion with relevant government functional departments, supervisors, owners, design, construction and other parties, it was decided to take the road of expert demonstration. Although the time was very tight at that time, the original plan called for the lights to be turned on on April 30, which is only 45 days away from this time node. time, there is no way, no one dares to act recklessly. In the end, we invited a professional team with relevant curtain wall design and construction qualifications to transfer from the archives.

Taking the original wind tunnel test data of the building design at that time, a series of calculations were made: wind load calculation, light strip and connection calculation, the influence of the addition of light strips on beams, and the increase of light strips on the column.

Influence, the influence of the increase of light strips on the support, two installation and fixing methods of lamps have been given successively: pan head self-tapping screws

Sealant steel wire and core pulling nail structural glue steel wire, two curtain wall expert demonstration meetings, the experts are also very rigorous and responsible. After detailed discussion, the lamp installation method of the core pulling nail structural glue steel wire is finally confirmed.

During this process, the in-depth design team I led tried every means, and through a series of coordination, we invited the Shenzhen Curtain Wall Association to organize curtain wall experts to conduct expert demonstrations on this special topic; later I discovered that all of us were Staying on the existing curtain wall adds a layer of how the light fixtures are fixed. After a long period of painful torment and tossing, one day a bold idea suddenly popped into my mind. Why can't we jump out of this thinking and take a bold step forward? The unitized glass curtain wall is dismantled, and the glass frame gusset plate is re-molded, and the installation space of the lamps is reserved. The lamps and the glass curtain wall gusset plate are integrated, this is not perfect! For various reasons, although this plan was not finally implemented, it was feasible after consulting curtain wall experts, and the chief engineer of Party A also said that this is the best solution. It's a pity that everyone's thinking was solidified in the state of rushing to work; this is also what I mentioned earlier and what was lacking at that time.

The facade lighting renovation of super high-rise buildings is different from ordinary buildings, and will encounter various difficulties, such as various technical difficulties and coordination of various relationships, which can be described as quite complicated; after this project, Vteck's DALI control system perfectly matched the design The company's plan grandly lit up the night of Kingkey 100