Is the balcony an open air component in a concrete structure?

In the building structure, the foundation, beams, columns, floors, walls, stairs, roofs, etc. belong to the main structure of the building; Balconies, awnings, loose water, and legs belong to the ancillary structures. The bottom plate of the balcony you are talking about does not belong to the main structure, but if the balcony has an exterior parapet, then the exterior parapet belongs to the main structure.

By default, it doesn't belong, the entrance, the aisle, this belongs to the passage.

Balconies are divided into living balconies and leisure balconies, as well as closed and exposed, which all affect whether they are dry or not;

The property management services that the parties shall agree on in the property management contract include: (1) the use management, maintenance and renewal of the common equipment of the common parts of the property; (2) The use management, maintenance and renewal of public facilities in the property management area; (3) Operation services of elevators, pumps and other housing equipment; (4) Cleaning services; (5) security services; (6) Accounting management of property maintenance and renewal costs; (7) Custody of property archives. In addition to the management services that should be agreed in the property management contract, the following service items can also be stipulated: >>>More

Not counted. The concept of a safety exit is clearly explained in the fire code, which is a stairwell for the safe evacuation of personnel, an entrance to an outdoor staircase, or an exit leading directly to a safe indoor and outdoor area. >>>More