The stage of the concert hall is fan-shaped, with a bottom width of 12m, a mouth width of 17m, a depth of1.6m and an area of168.2m. The telescopic stage is rectangular, with a width of 4.5m and an area of15.72.
The audience hall and the stage are coupled into a space without a stage frame, and there are slaps on both sides of the front of the performance stage; The auditorium is a full-step slope, with a total height difference of 4.7 meters between the front row and the back row, and an appreciation of nearly 0.3 meters on each row, which has good sight conditions.
Considering that it is a professional concert hall, it is not suitable for using many other functions at the same time. We cancelled the original design of film screening and other functions, so the actual number of seats in the concert hall is 552. According to the acoustic requirements, the inner surface of the concert hall is decorated with high-density hardwood and multi-layer medium-density boards, so as to avoid using thin plates to leave cavities and metal plates as the structure of the concert hall surface, which will cause excessive vibration absorption of low-frequency thin plates; The ceiling is made of high-density reinforced fiber gypsum board with a certain thickness and area density, which plays an effective role in sound reflection; According to the design and calculation of sound quality, the decorative sound absorption surface layer or diffuse reflection surface layer is decided for the back wall. The stage mirror adopts wooden decorative structure or transparent PC board structure.
The performance platform automatically translates and extends, and the strip platform in the front and middle extends to the front of the audience to form a T-shaped stage.
The auditorium is the most important sound absorption surface of the concert hall, and its sound absorption can account for about 80% of the total sound absorption of the hall. Therefore, when choosing seats, manufacturers must be required to provide information on the sound absorption coefficient of reverberation room, so as not to affect the overall acoustic performance of the concert hall and cause adverse consequences.
Because the stage space is as high as 1 1.5m, the sound of playing (singing) is easily lost in the stage space. The original design of two-stage inclined flat plate is changed into three-stage folding reflector, and the height of the back edge of the reflector is reduced from the current 7m to about 5m, which is beneficial to reflect more music on the stage to the front and middle areas of the audience hall and achieve better sound field effect.
For the main noise and vibration sources such as environmental traffic noise, engine room noise and piping system noise, the design of sound insulation, sound absorption, mechanical vibration reduction and noise elimination of the return air duct system is fully adopted in the decoration, and the airflow speed of the return air duct system is strictly controlled to ensure that the concert hall meets the design background noise limit.
Fire fighting shall meet the requirements in strict accordance with relevant regulations.