First, the project overview:
Jinjiang Gymnasium is a new comprehensive gymnasium built by the Jinjiang Sports Center in Fujian. It can conduct basketball or volleyball, table tennis, badminton, handball, indoor soccer, gymnastics, skills, martial arts and other sports competitions or major cultural performances. The stadium is located in the northwest corner of the center of Zengjing Community in Jinjiang City. It was completed and delivered in October 2002.
The building consists of the main building and the training hall (attached building). The ground floor is three floors and half underground. The semi-basement is the equipment room, garage and gym. The first floor of the main building is the competition hall, the athlete referee lounge, the VIP lounge, the technical room (including the venue lighting distribution room), the press release center, the office, etc. The second floor is the main entrance hall, the audience seat, the audience. There is a lounge, etc.; the third floor is a disabled seating area. The first floor of the annex building is a martial arts table tennis training hall; the third floor is a basketball volleyball training hall. The total construction area is 18,963 square meters, the building height is 22.2 meters, the audience is 4,000 (including 3,500 fixed seats), and the total investment is about 45 million yuan.
Second, the venue lighting technical requirements:
1. Main technical parameters:
Horizontal illumination (ground floor): 1500Lx
Vertical illumination (main camera direction): 1000Lx
Horizontal illumination uniformity: U1=Emin / Emax > 0.5U2=Emin / Eave > 0.6
Vertical illumination uniformity: U1=Emin / Emax > 0.4U2=Emin / Eave > 0.5
Light source color temperature: 6000K > Tk ≥ 4000K
Color rendering index: Ra ≥ 85
Auditorium horizontal illumination: 375Lx
Auditorium vertical illumination: 250Lx
VIP seat horizontal illumination: 750Lx
VIP seat vertical illumination: 500Lx
Glare Limit Quality Level: Glare Index <50
Light source life: ≥ 6000 hours
2. Design ideas:
2.1 Illumination standards: The current national standards and the relevant standards of the National Sports Commission have relevant requirements for the illumination indicators of various sports venues, depending on the characteristics of each sports, the required movement space and the speed of movement, and also consider User's game specifications and technical difficulty and other factors. Modern gymnasiums must also fully consider the technical requirements for color TV broadcasts. According to the national standard requirements, the illumination range of different sports during the official competition is 350~1000Lx.
The illuminance standard proposed by the library is slightly higher than the national standard. This is based on the following two considerations: (1) meeting the requirements of color TV broadcasting for major competitions; the optimal vertical illumination required for TV cameras is 800~1000Lx. According to the current technical means and lighting method, the ratio of vertical illuminance to horizontal illuminance is generally 1:1.5~2.5, according to which the illuminance standard of horizontal illuminance (ground surface) is 1500Lx and vertical illuminance (main camera direction) is 1000Lx. . (2) Adapt to different illumination requirements of various sports. It is determined that the horizontal illumination (ground surface) is 1500Lx, which is beneficial to flexibly setting or adjusting the illumination mode and illumination level of different sports project modes, and better reflecting the multi-functional characteristics of the comprehensive museum.
2.2 Lighting quality requirements: In addition to the basic illuminance requirements for lighting in sports venues, other such as uniformity of illumination, three-dimensional sense; color rendering and color temperature requirements of light source; glare and stroboscopic control are also important indicators to measure lighting quality. High-quality venue lighting allows athletes to concentrate on the full level of competition, so that the audience has a relaxed and good visual environment. In particular, high-quality color TV broadcasts can be guaranteed to make the picture clear and lifelike.
Third, the way of lighting and lighting options:
1. Lighting method: reasonable lighting design is very important for improving illumination uniformity, three-dimensionality, reducing glare, meeting training and lighting requirements of various competitions. Common lighting methods include direct illumination and indirect illumination. See Table 1.
Combined with the characteristics of the circular steel grid structure of the museum, this project uses a direct lighting method similar to the combination of a light bridge and a starry sky. See Figure 1: Light diagram. The lamp bridges on both sides are arranged in a three-segment arc along the arc so that the projection distance of the lamp bridge from the center of the field is 14~19M, and the stars of the stars are evenly arranged in a circle. In order to ensure the uniformity and three-dimensionality of the illuminance of the site, the gyroscopic luminaires do not use the wide-cover (or hood-shaped) luminaires of most venues to illuminate vertically downwards, but use small floodlights to calculate the aiming points. Arranged, which is more conducive to achieving optimal lighting indicators.
Table 1: Comparison of lighting methods
the way
Lamp installation method
Plane
Characteristics
Applicable place
straight
Connect
Photo
Bright
Gypsophila
⊙⊙⊙⊙⊙
⊙⊙⊙⊙⊙
⊙⊙⊙⊙⊙
The vertical illumination is low, the glare is small, the illumination is uniform, and the equipment cost is low.
Comprehensive gymnasium, boxing, gymnastics, skills, wrestling, training hall
Light bridge
↓↓↓↓↓
↑↑↑↑↑
When used for a certain direction of ball movement, the glare is small, the vertical illumination is high, and the stereoscopic effect is strong.
Ball, skill, gymnastics, swimming, water polo
mixing
↓↓↓↓↓
⊙⊙⊙⊙⊙
↑↑↑↑↑
Uniform illumination, small glare, high vertical illumination, and low equipment cost.
Comprehensive gymnasium, gymnastics, skills, boxing, wrestling
between
Connect
Photo
Bright
Oblique from the side
↑↑↑↑↑
↓↓↓↓↓
The light is soft, the glare is small, but it is uneconomical, and the equipment costs are very high.