Nanjing Xianlin Metro Cable-stayed Bridge is the first cable-stayed bridge of Nanjing Metro, and it is also a sub-project with the highest technical content. The main tower of the bridge is 53 meters high. The tower is a special-shaped variable-section structure with a span of 100+75 meters. There are 24 bored piles, including 16 piles of main towers, with a diameter of 2 meters and a depth of more than 70 meters. . The entire bridge is smooth, light and beautiful, and from a distance, it is like a big bird that wants to fly.
The goal of Nanjing Xianlin Metro Cable-stayed Bridge Landscape Lighting Project is to combine lighting technology with lighting art to highlight the characteristics of Xianlin Metro Cable-stayed Bridge; select reasonable lighting methods and equipment to save energy and energy, avoid glare and light pollution The lighting equipment is safe and reliable, easy to maintain; and coordinated with the surrounding environment.
LED lighting application analysis
In the lighting project of bridges, main tower lighting is generally the top priority of the entire lighting project. In order to make the main tower of Nanjing Xianlin Metro Cable-stayed Bridge bright and majestic, in the lighting design, six luminous points are arranged under the diagonal cables on both sides, and the main tower is cast from the bottom to the top. illuminate. The luminaire mainly uses the AM722XWT high-power LED floodlight newly developed by Yajiang Optoelectronics. It mainly has the following characteristics:
1. Low energy consumption. The total power is 680W, which is more than 70% energy saving compared to the traditional 2950W HID large-area wall washer;
2, high light efficiency. The maximum luminous flux of AM722XWT is 18000lm, and the illumination of 2 meters is 58000lux (15Â°);
3. Intelligent. The luminaire can be controlled by a DMX encoder;
4, the light is adjustable. Light can be adjusted as needed. RGB100% dimming, linear/nonlinear dimming.
5, equipped with a wireless receiver, easy to control.
The cable of the cable-stayed bridge is like the strings of the harp. It is one of the main load-bearing members of the cable-stayed bridge and the focus of the lighting project. Therefore, a large number of YG-LED321W of Yajiang Optoelectronics are placed under the stay cable, and strive to pass the colorful changes of LED lighting, while illuminating the cable, and creating a unique and unique artistic charm of the Xianlin subway cable-stayed bridge.
ã€€ã€€ Engineering features after applying LED lamps
1. High efficiency and energy saving. In the lighting project of Nanjing Xianlin Metro Cable-stayed Bridge, all the lamps showing the main building parts of the bridge were selected with high-efficiency light source LED lamps. As we all know, LED lamps have significant energy saving, environmental protection, long life and maintenance-free features, while Yajiang Optoelectronics' AM722XWT and YG-LED321W not only have significant energy saving effects, but also have very stable performance. After calculating the analogy, the existing lighting method saves more than 60% of the electric energy energy than the traditional lighting method.
2. Intelligent. Because Yajiang Optoelectronics' LED lamps have high-intelligent chip devices, the pre-programming and high-tech intelligent control system can make the cable-stayed bridge produce a cheerful, or brilliant, or invigorating, or quiet, rich scene change effect. The bridge creates a better interaction and blending with the heavens, the earth, the landscape, and the people , thus writing a colorful and colorful movement.
At the same time, the LED lighting system of the cable-stayed bridge adopts the TCP/IP protocol, which makes the control quality and reliability of the LED lighting system higher, and the signals optimized by the transmission make the connected devices in the whole LED lighting system more and connected. The distance is longer.
The High-mast Lamp is generally refers to the new lighting device which is composed of the steel taper light pole and the high power combination lamp frame of 15 meters or above.It consists of lamp holder, internal lamp, electric rod body and basic part.Lamp head modelling can according to user requirement, surroundings, lighting need specific and definite;The interior lamps are mainly composed of floodlights and projection lamps. The light source adopts NG400 high pressure sodium lamp, and the lighting radius is 60 meters.The bar body is usually a pyramid structure, which is made of steel plate, with a height of 15 to 40 meters, which consists of two to three sections.
1. Beautiful appearance, large lighting area, good lighting effect, concentrated light, uniform illumination, small glare and easy to control and repair.
2. Applicable places: city square, station, wharf, highway, stadium, overpass, etc.
3. The lamp pole is a high quality steel plate by moulding into a multi - pyramid splicing steel rod, through hot galvanizing anti-corrosion treatment.
4. The lamp frame is made of high quality stainless steel.
5. Fasteners bolts and nuts are stainless steel.
6. Light source:400W-1000W sodium lamp.
Height: from 18m to 50 m
Suit for: highway, expressway, parkway, freeway, central motorway junction, truck and bus terminals, railyards, ship docks, airports, ferry terminals, prisons, industrial and commercial sites, international borders.
Shape: round, multi-pyramidal, column form, polygonal or conical
Q345B/A572,minimum yield strength>=345n/mm2
Q235B/A36,minimum yield strength>=235n/mm2
Tolerance of Dimension: Â±2%
Lighting Source: 400 W- 5000 W high pressure sodium flood light, light extension :up to 30 000 mÂ²
Light plate: Various figure of selection ,material with hot dip galvanization steel frame
Lifting System: Lifter fixed in the inner of the pole with lifting speed of 3~5 meter per minute
Equipped e; ant ferromagnetism brake and break -proof device, manual operation applied under power cut
Electric Appliance Control Device: Electric appliance box to be the hold of the pole ,lifting operation could be 5 meter away from the pole through wire .Time control and light control could be equipped to realize full-load lighting mode and part lighting mode
Surface treatment: Hot dip galvanized Following ASTM A 123, color polyester power or any other standard by client required.
Joint of Poles: Insert mode, inner flange mode, face to face joint mode .
Design of pole: Against earthquake of 8 grade
Wind Speed: 80 Km/Hour
Welding: We has past flaw testing. Internal and external double welding makes the welding in shape
Thickness: 6 mm to 20 mm
Raw material testâ†’Cuttingâ†’Molding or bending â†’Welding (longitudinal ) â†’Dimension verifyâ†’Flangeweldingâ†’Hole drilling â†’Calibration â†’Deburr â†’Galvanization or powder coating, Paintingâ†’Recalibrationâ†’Threadâ†’Packaging
Packages: Our poles as normal cover by Mat or straw bale at the top and bottom ,anyway also can following by client required
High-Mast Lamps Series,High Mast Lamps,High Mast Light,High Mast Light Pole
Jiangsu chengxu Electric Group Co., Ltd , http://www.chengxulighting.com