The bridge lighting is based on the premise of satisfying the landscape and taking into account the safety of navigation. According to the aesthetic principles of landscape lighting, the following design principles are followed:
1) Combine the basic principles of bridge aesthetics and landscape to highlight the structural characteristics of the bridge.
2) The lighting system is composed of lighting aesthetics supplemented by the basic elements of bridges, points, lines and surfaces.
3) Increase the color level of the bridge at night in the form of digital dynamic light and color system lighting.
4) Fully consider different orientations and angles to design the bridge night landscape lighting, select the appropriate brightness to make the bridge highlight its part or details in the three-dimensional space environment, so as to express the combination of the overall artistic shape of the bridge and the individual structure. Flood lighting should be applied to the lighthouses and piers of the bridge to achieve an effective artistic effect. Sota flood lighting should gradually decrease in brightness from bottom to top and show a smooth transition, with no obvious bright (or dark) spots during the change. The led flood lighting of bridge piers should have a certain degree of uniformity, and the ratio of the minimum brightness (or brightness) value to the maximum average brightness (or brightness) value is greater than 0.4. Outline lighting or accent lighting should be performed on the part of the bridge, floodlighting and outline lighting should be performed on beams, guardrails and cables, and accent lighting should be performed on sculptures or characteristic structures.
5) The various lighting effects of functional lighting and landscape lighting projects will not cause mutual interference, negative effects such as light or floodlight, chaos or diffraction. Landscape lighting of bridges should ensure that there is no harmful glare in any direction for drivers of various vehicles, and does not interfere with the identification of various signal lights. Lighting facilities and lighting pipelines should be concealed as much as possible, so as not to affect the daytime landscape of the bridge; the lamps and lanterns should be novel in shape. The lighting is efficient and uniform, and the installation and maintenance are convenient.
6) Bridge lighting projects should also follow the principle of energy saving and consider reducing lighting costs, including initial investment and operating costs. At the same time, all-round management factors such as maintenance, repair, cleaning and replacement should be fully considered in the design.