The concert hall covers an area of 184 square meters, and there are also 124 fixed chorus seats, which can provide more abundant performances for three wind bands. The side wall of the performance platform is inclined backward and downward, and has diffusion treatment to reflect acoustic energy to the audience as much as possible. The inner walls on both sides of the hall are designed to incline downward, which not only improves the acoustic effect, but also makes the hall space effect more centripetal. A transparent reflecting plate with diffusion treatment is set above the performance stage, which can coordinate with the reflection of the surrounding walls and achieve good acoustic effect.
There are four entrances and exits in the concert hall swimming pool, two entrances and exits in the balcony and eight entrances and exits in the box, two of which are used in conjunction with the swimming pool. Each entrance and exit is equipped with a glottis, and a flat roof is installed inside the glottis, and the wall is treated with strong sound absorption. The multi-function hall of Hefei Grand Theatre has a lifting platform, and the stage can be changed flexibly according to needs. look
The arrangement of seats and the rising height of seats can also be adjusted with the evolution of stage form, and at the same time, a seat storage space is set under each lifting platform to match the evolution of stage functions. By combining the simple lifting platform configuration with the seat platform, the theater can realize five main combination transformations, namely, a flat hall, a small theater, a convex stage, a T-shaped stage and a Center Stage. By making corresponding variable measures in acoustics, the best acoustic effect of natural sound performance can be achieved without using the sound reinforcement system in ordinary performances.
Multi-function hall as a plane hall:
All the seat carts and seats are stored on the lifting platform, and there are no seats in the audience. All kinds of sports activities, exhibitions and dances can be held in the hall.
Multi-function hall as a small theater;
The lifting platform near the fixed stage rises to the stage plane of 0.8m, which is flush with the fixed stage and used as a stage. The rest of the lifting platforms are lowered to a certain height as required, forming a ladder for the audience, and at the same time forming a smooth access channel for the audience. The theater can perform local operas, plays, plays, stage plays, small concerts and so on. When the acoustic reflector in the hall is lowered, it can meet the natural sound performance and achieve the best listening effect.
The multi-function hall is a "convex" stage: the lifting platform near the fixed stage rises to the stage plane of 0.8 meters, which is used as a stage, and the rest lifting platforms rise to a certain height as required to form a ladder as an auditorium, and at the same time cooperate to form a smooth access channel for the audience. As a large-scale extension stage, the multi-function hall is convenient for actors to communicate with the audience.
Multifunctional hall as a "T" stage;
The lifting platform near the fixed stage rises to the stage plane of 0.8 meters as the stage, and the other rows of lifting platforms rise to the plane of 0.4 meters as the audience. As a large extension stage, the theater has a long extension stage and can be used as a fashion show stage.
Multi-function hall as Center Stage;
The lifting platform rises to a height of 0.8 meters as a stage, and other lifting platforms in each row rise to a height of 0.4 meters as spectators. The center of the theater is the stage, surrounded by the audience. The stage of the Opera House is a pin-shaped frame stage with a fixed platform width of 18m and a height of 12m. In addition, there are movable openings to adapt to performances of different scales. The main platform is 32.8m wide, 23.5m deep and 30m clear. The stage is equipped with large machinery, which has the functions of lifting, rotating and moving to adapt to different performances.
The orchestra pit is an open orchestra pit with a net area of 92.8m, which can accommodate 120 people at most. The opening is 5 meters deep, and the orchestra pit is lifted in blocks. When the small belt is used, the opening depth is reduced to about 2 meters; The lifting orchestra pit can also be used as a vertical means of transportation such as grand piano and chairs, and can also be used as a stage to expand the performance area.