Three landmark buildings in Longyan downtown area of ​​Fujian Province - Longyan Administrative Center, Longyan Exhibition Center, Longyan City Museum night lighting design

1 Introduction
From high-speed into Longyan City, step into Longyan Avenue, three landmark buildings—Longyan Administrative Center, Longyan Exhibition Center and Longyan City Museum. The three buildings are located in Longyan, the most important location in Longyan City. In the square, it has become the most spectacular building group in Longyan City. The author has the privilege to design night lighting for this group of buildings in 4 years. Starting from the essence of the building and the cultural connotation of Longyan City, through the analysis of the deep cultural roots of the building, the excavation The cultural symbols in the building focus on the cultural expression of the architectural night lighting design, and construct a scientific, systematic and reasonable architectural night lighting design from the theory and practice. The three buildings are marked by the night. The nightscape architecture is presented to the world.

2 Longyan City, the location of the city, the geographical location of the three buildings and the surrounding environment
2. 1 Longyan City Introduction Near the Taiwan Strait, Longyan City, bordering Guangdong and Fujian, is an administrative area composed of Guting Prefecture and some jurisdictions of Gulongyan. Because it is located in the west of Fujian, and Fujian is also known as "闽", Longyan City is known as "Western". Daisy is a land with a long history and rich culture. It is the birthplace of the three most important rivers in Fujian Province—the Minjiang River, the Jiulong River and the Tingjiang River. It used to be a paradise for ancient people in the ancient times. It is the ancestral home of the "Yu Yue people" and the location of the capital of the "South China Sea" and its central area. It is a Hakka ancestral home at home and abroad.

2. 2 The geographical location of the three buildings and the surrounding environment affect the geographical location of the three buildings:
The three buildings are located in the People's Square in the central area. People's Square covers an area of ​​120,000 square meters. It is adjacent to Longyan Avenue in the east and Longteng Road in the west. The administrative center is located on the north side of People's Square, the exhibition center is located on the west side of People's Square, and the museum is located on the east side of People's Square (see Figure 1). Three buildings are arranged in a font. The distance between the north and south of the building is 213. 7m, and the distance between east and west is 186. 7m. In addition to the above-ground buildings, there is an underground public parking lot of 45,000 square meters under the square. See the “A bird's eye view of the People's Square Building Group” for the overall plane relationship.

Environmental impact analysis:
Overall: There are 30-meter planning roads around the administrative center, convention center and museum. The surrounding area is wide and far from the residential area (see Figure 2).
Indoor aspects: There are corridors on the south and north sides of the east and west skirts of the administrative center. The main building and the east and west podiums are all offices and conference rooms. The east side of the exhibition center is the lobby, the west side is the backstage makeup, and the north and south sides are the counties. Meeting room; the west side of the museum is the entrance lobby, the south side is the urban planning exhibition hall, and the northeast side is the exhibition hall. It is feasible to set the necessary inner light transmission.

3 Overview of the administrative center, convention center, and museum
3. 1 Longyan City Administration Center


Project scale: The number of building layers is 11 floors above ground and 2 floors underground.
The building area is 100,000 square meters. Functional layout: The basement is equipment room, diesel generator room, garage, etc.; 1st to 11th floors are office and conference.
Building facade layout: The building shape is simple and stable, the atmosphere is not cumbersome, the reality is clear and distinct, the rhythm is strong, and the color is elegant. The north-south body is 310 meters long, the east-west body is 100 meters long, the main building is 55 meters high, and the podium is 24 meters high. The theme of the exterior wall is vertical lines, which are upright and upright. The finishes are made of warm gray-yellow granite and silver-gray coated insulating glass. The east and west sides are decorated with decorative and shaded surfaces, and the metal grille walls are partially used. The top of the north and south faces is inlaid with a diameter of 4. 2 meters (see Figure 5).

3. 2 Longyan City Convention and Exhibition Center Project Scale: Longyan City Convention Center is a theater building with a scale of 1,500. The number of building layers is three floors above ground and one underground. The building area of ​​the building is 32,000 m2, the underground building area is 19,000 m2, and the building height is 23.6 m. Functional layout: The basement is equipment room, diesel generator room, garage, etc.; the first floor is a 150-person conference room, a 500-person conference room, a small conference room, a foyer, a substation, etc.; the second to third floors are 1500 theaters. Stage, dressing room, computer room, etc.

The architectural form emphasizes the integrity, the style strives to be solemn, concise, simple, generous, and pays attention to the modern sense. It reflects the modern architectural characteristics of Longyan. The north-south body length is 169. 60 meters, the east-west body length is 82.6 meters, and the building height is 23.6 meters. The height of the frame is 36 meters (see Figure 6).

3. 3 Longyan City Museum

Project Scale: Longyan City Museum is a large museum. The number of building layers is four floors above ground and one underground. The above-ground construction area is 28,000 m2, and the underground construction area is 2. 1 million m2. Functional layout: The basement is equipment room, diesel generator room, garage, etc.; the first floor is urban planning exhibition hall, temporary exhibition hall, lecture hall, foyer, substation, etc.;

The second to fourth floors are exhibition halls, theme exhibition halls, etc., computer rooms, etc.; four floors and mezzanine are warehouses and offices.
Take the most characteristic round shape of Longyan. The architectural style strives to be solemn, concise, simple and generous, highlighting the sense of sculpture and embodying the characteristics of Longyan's regional architecture. The north-south body is 136.40 meters long, the east-west body is 82 meters long, the building height is 23.2 meters, and the frame height is 35 meters (see Figure 7).

Figure 7 Perspective view of the east facade of the museum

4 design concept
4. 1 The night scenery effect of the proposed performance With the rapid development of China's economy and the accelerating process of urban modernization, the urban night lighting environment has become an inseparable part of the urban landscape, and it has been highly valued by all parties in the society and has become a judge. The standard of whether a city is modernized. When the night comes, these three important buildings with high-level art pieces, take off the noisy daytime, put on the night, set off with the stars, and highlight its importance at night. The design focuses on expressing the dignity, modernity, grace, coziness, atmosphere, fashion, simplicity, generosity, and full integration of the three buildings. It is necessary to express the functional and artistic style of the building. The use of lighting highlights the key points and structure of the building. The characteristics can show the cultural features of a city in a concentrated way, and the night environment of the city makes the city residents proud and gives the tourists a deep impression.

4. 2 Design Principles The lighting of People's Square and the three buildings is “urban lighting”, which serves the city in terms of functionality, artistry, people-oriented and sustainable development. Adhere to the design principle of people-oriented, green lighting. The use of high-tech green, energy-saving lamps, reduce daily energy consumption indicators, meet energy-saving requirements, and create a good lighting environment, while using a variety of energy-saving measures, and through reasonable adjustment of the lamp's projection angle, light distribution curve and science By utilizing the illumination effect of the effective light on the illuminated object, the problem of light pollution caused by the overflow light is avoided, and the requirements of energy saving and environmental protection and the pleasant visual effect are achieved.

4. 3 Design requires safe and environmentally friendly lighting design, including the safety of the lighting system itself and the promotion of the lighting environment to social security. Give priority to efficient, economical, practical, and energy-efficient light sources to minimize maintenance and operating costs. Prevent light pollution, minimize the interference of people on nightlife, focus on the choice of lamps, choose the location of the lamps reasonably, and install the lamps as concealed as possible, so that the lighting fixtures can maximize the lighting efficiency and control. Glare, to prevent light pollution, try to see the light and see the light.

4. 4 Highlights When we consider the nightscape lighting, we have fully communicated with the architects to analyze the surrounding environment of the building, the stone wall and glass area, materials and texture, select the key lighting parts, and determine the brightness and angle of the light source. To avoid glare. Comparing the different conditions of daytime natural light and lighting, using light and shadow to create a perfect three-dimensional shape for the building. Focus on the key locations and key parts, and pay attention to the detailed lighting methods.