How much is the premium pool within the normal range?

The pool area of high-rise buildings is within the normal range of 15%-30%.

Reference for calculation of pool area:

1. Construction area of elevator shaft, stairwell, garbage chute, power distribution room, equipment room, public hall and aisle, basement, guard room on duty and other public and management rooms that serve the whole building functionally.

2. Half of the horizontal projection area of the partition wall between the suite (unit) and the public building space and the external wall (including gables).

3. The external wall on the same floor has both the main wall and the glass curtain wall. The building area is calculated based on the load-bearing wall, and the wall thickness is calculated according to the load-bearing wall thickness. When the wall thickness of each floor is different, it will be calculated separately according to the floor. Metal curtain walls and curtain walls made of other materials shall be treated with reference to the relevant provisions of glass curtain walls.

Precautions for advanced swimming pool

At present, the country only stipulates the relevant calculation principles and methods of the * * * area sharing coefficient, but does not stipulate the calculation results and size range of the sharing coefficient. According to the experience in the industry, the allocation coefficient of ordinary multi-storey houses is about 0. 10-0. 15 when there is no underground computer room, no shops on the ground floor and the ground floor is overhead. The allocation coefficient of small high-rise residential buildings with elevators is about 0.15-0.20; High-rise residential buildings are relatively high, about 0.20-0.25.

The formula of pool area seems simple, but the pool coefficient is the most problematic. Many times, the data involved in calculating the pool area, such as the public building area of the whole building and the sum of the building areas of all units of the whole building, are unknown, so it is impossible to effectively calculate the pool coefficient.