Auditorium chair arrangement pay attention to the problem

The relationship between the chair and the venue
　　1) Chairs that cannot be fixed should not be placed on sloping ground.
　　2) Chairs that cannot be arranged in arcs cannot be arranged in arcs or to arcs.
　　3) The radius is not enough to line up a row of fields.
　　4) The channel is generally 1200mm，
　　5) The auditorium area shall comply with the following provisions:
　　A. Class A theatre should not be less than 0.80m2/ seat;
　　B. Class B theatre should not be less than 0.70m2/ seat;
　　C. Class C theatre should not be less than 0.60m2/ seat;。

　　6) Theatres should be equipped with fixed seats with backrest, and movable seats can be set up when the small box seats do not exceed 12.
　　7) The middle distance of the seat armrest, the hard chair should not be less than 0.50m; Soft chair should not be less than 0.55m.
　　8) Seat spacing shall comply with the following provisions:
　　A. Short row method: the hard chair should not be less than 0.80m, the soft chair should not be less than 0.90m, the terrace floor row distance should be increased appropriately, and the horizontal distance between the back of the chair and the most prominent part of the back row should not be less than 0.30m;
　　B. Long row method: the hard chair should not be less than 1.00m; The soft chair should not be smaller than 1.10m. The terrace floor row distance should be appropriately increased, and the horizontal distance between the chair back and the most prominent part of the back row should not be less than 0.50m;
　　C. When seating is set against the rear wall, the last row of seats in the balcony and pool seat should be increased by at least 0.12m.
　　9) The number of seats in each row shall comply with the following provisions:
　　A. Short row method: there should be no more than 22 seats when there are walkways on both sides, and no more than 11 seats when there are walkways on one side; When the quota is exceeded, the row spacing increases by 25mm for each additional seat;
　　B. Long row method: There should be no more than 50 seats when there are walkways on both sides, and no more than 25 seats when there are walkways on one side.
　　10) The audience shall reserve wheelchair seats with a depth of 1.10m and a width of 0.80m. The seats shall be in a position that is convenient for persons with disabilities to enter and evacuate, and international general signs shall be set up.
　　11) The slope slope is not greater than 1:6.
　　12) Ramp seats can not be arranged in an arc.
　　13) There are horizontal walkways, the back row should not exceed 10 rows.
　　14) The vertical and horizontal walkway should not be less than 1.2 meters.
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