The Beijing-Hangzhou Grand Canal Hangzhou main city section night scene project began in December 2007 and was officially lit up on February 9, 2009 (Yuan Lan Festival) for one year. The project was organized and implemented by the Hangzhou Canal Comprehensive Insurance Committee. The international urban night landscape planning and landscape lighting design master ROGERNARBONI presided over the design, and the Zhongtai Lighting Group cooperated with the design and construction of the Hangzhou Street Light Management Office.
The project involves three districts of Gongshu, Xiacheng and Jianggan in Hangzhou, including 21 kilometers of green belts, sidewalks, river banks, 19 bridges of different eras, volumes, shapes, materials and colors, and more than 100 modern buildings. More than 60 pavilions are a huge lighting project. Throughout the canal night lighting project, from design to implementation, a number of ideas, technological innovations and breakthroughs have been realized.
I. Design concept innovation of "light chapter, ink and ink"
Before 2008, the nightscape design of the main urban section of the Beijing-Hangzhou Grand Canal was also tendered nationwide. However, due to the rapid and centralized transformation of the landscape along the canal in the past two years, the landscape of many areas and the design of the year. The situation is very different. The theme of the design and the overall harmony of the 10 km night view of the two sides of the strait are obviously insufficient. In addition, during the implementation of the plan, the management and coordination of various departments of the government are involved, and the final realization is also realized. The effect is discounted. After repeated field visits and surveys, it was found that the previous lighting mainly had the following problems:
1. Lack of integrity, unity and continuity. For example, the bridges along the river are treated with different lighting methods and means. The plants on the coast are illuminated by amber, green, yellow and other colors. The sidewalk lights are each shaped. There are at least 10 styles of high-rise buildings on both sides. Wearing a hat, the overall feeling is messy;
2. The installation method of the lamps and the selection of the lamps are improperly handled, resulting in a large amount of glare. For example, the details of the bridge and the sculpture on the stigma are not represented, and a high-powered floodlight is installed under the bridge to produce a strong reflection on the water surface; the plant-illuminated lamps are dizzy for pedestrians;
3. In the night, the beautiful outline of the canal cannot be identified, and the depth of the landscape is lacking. People cannot see the numerous tributaries and huge water systems behind the canal.
After the above analysis and research, the concept of the night scene of "Light of Light, Ink Danqing" has been finally realized. Considering the different heights, depths of field, levels and perspectives, while reflecting the unique temperament and characteristics unique to the Hangzhou section of the Beijing-Hangzhou Grand Canal, the viewing needs of tourists and citizens, and even passers-by, are mainly from the following Aspects:
1. It shows the unique temperament and characteristics of the Hangzhou section of the Beijing-Hangzhou Grand Canal.
The Beijing-Hangzhou Grand Canal is 1,794 kilometers long, and the landscape along the river is very different. The south of the Yangtze River and the beautiful landscape are unique to the Hangzhou section. Therefore, the keynote of the whole design is more appropriate to match the unique characteristics of the city of Hangzhou, and it is in line with the slogan “Brightâ€, “Fuâ€, “Show†of the Hangzhou Municipal Government for the city lighting. "nice".
2. From the lighting of the canal to the nightscape planning strategy of the Hangzhou urban water system.
The unique atmosphere of this huge water system in Hangzhou was first demonstrated by the installation of special water pole markings on the nodes where all the tributaries were imported, and the way the landscape was complemented by the tributary bridge. The long-term, night-scape strategy around the urban water system laid the foundation.
3. The movement of light, "soothing, melodious, wonderful and rhythmic."
For example, the landscape on both sides of the Hangzhou section of the Beijing-Hangzhou Grand Canal is continuous, with uniform blue-green light (which can be changed according to the season), creating a beautiful mist with custom blue-green LEDs and metal halide lamps with special blue-green glass. Mist visual effects. The color of the mist can change from ice blue in winter to warm blue green in summer. Part of the trees and waterfront adjacent to the water surface are illuminated with static warm white light. Traditional buildings such as pavilions and pavilions are an integral part of the Grand Canal landscape. They are all illuminated with golden white light, mainly showing the beautiful tower-shaped roof of the building, highlighting these buildings at night. The pillars and walls are also illuminated to show the texture of these structures at night and to fully consider the needs of the citizens who are in them.
Second, the project implementation method innovation
In addition to the innovation of the concept, different methods have been adopted in the implementation of the project than in the previous municipal lighting projects.
1. Using the test section to illuminate is the key to the success of the 21km project.
In order to confirm the design concept of ROGERNARBONI, the area around Yingyue Bridge was selected as the test section to light up. The range includes 300 meters of landscape belt, 2 ancient buildings, 1 bridge, 3 high-rise buildings and 1 river interchange. Covers the design highlights of ROGERNARBONI.
In order to ensure the effect, the comprehensive insurance committee and the design team asked the surveying institute to conduct on-the-spot surveys. The designer also measured a tree, and then deepened the plan, design and construction drawings, deepened the customized lamps and found the manufacturer, product selection and testing. , installation method research, on-site commissioning. After these processes, the test section was illuminated and received a high evaluation and approval. With the experience of the test section, the lighting equipment that is most suitable for the effect of the scheme was determined. The problem of 21 km construction and implementation was solved one by one. The work schedule, schedule control and overall effect have been grasped.
2, the design side closely cooperates with the construction to ensure the final lighting effect
In the implementation process, 21 km was divided into four sections. Due to the complicated situation on the site and the tight time, in order to prevent the construction party from rushing to the schedule, the construction personnel did not follow the design drawings and arbitrarily installed the 21-kilometer luminaire. Before the construction unit entered the site, the design staff trained all the construction personnel. Introduce the program, explain the precautions for the construction and installation of drawings and lighting equipment, and emphasize the importance of the standard position of the lamp to ensure that the lamps are installed and constructed in strict accordance with the test section.
Third, the technological innovation in the project
1. Energy saving and environmental protection
The design principle of the entire canal project is to minimize energy consumption. The traditional lighting scheme mostly uses high-pressure sodium lamps, which consumes a lot of energy. The lighting project uses LED lamps (light-emitting diodes) and energy-saving lamps. The same lighting effect, energy consumption is one-third of the high-pressure sodium lamps, and the life is longer.
The canal lighting project completed a total of 77 ancient buildings and structures on both sides of the main urban area of ​​the canal (such as the West Bridge Historic District, Xiaohezhi Street Historic District, Fuyicang), 9 tributary bridges (such as Huaguang Bridge, Black Bridge), across the canal. The main bridge and the space under the bridge are 19 (such as Chaowang Bridge, Jiangsheng Bridge, Chengdong Bridge), 39 high-rise buildings along the river, including 1766 sidewalk lights, 1169 sets of blue-green light poles, and nearly 5,951 railing lights. There are about 25,000 plaques, 780 baht of Chinese lanterns, 1761 æ¤ç‰© plant buried lights and sculpture lamps, 1101 sets of small floodlights for buildings and bridges, 961 sets of T5 linear lights, and 7,500 linear LED floodlights. There are about 1,600 LED green lights, more than 100 poles in Venice, and nine odometers.
In this lighting project, more than 50,000 sets of lamps were installed, with a total power of about 4200 kW. The original total lighting power was more than 5,000 kW, but the number of lamps was only 20,000 sets. The total power consumption of the whole project was only 3182 kW. It reaches 2, 6W per square meter. In other words, with the previous three-quarters of the electricity, it has doubled the number of lamps in the past, and energy conservation and environmental protection can be seen.