Precautions for second-hand housing modification

First, for the construction of "brick-concrete" structures, all prefabricated panels cannot be removed, and doors cannot be opened.

In particular, brick walls with a thickness of more than 24 cm are generally belonging to load-bearing walls and cannot be easily removed and modified. The load-bearing wall bears the weight of the building and maintains the balance of the entire building structure. If the load-bearing wall is dismantled, the balance of this force is destroyed, and the consequences are probably heavy, and the threat of life that no owner can afford. In the home decoration, except for the load-bearing wall, it is absolutely impossible to remove it, and the light-weight wall may not be dismantled. Some light-weight walls also bear part of the weight of the house. For example, the lightweight wall below the beam cannot be removed - because it also bears part of the weight of the house. Dismantled, the same will destroy the structure of the house. So what wall can be dismantled? Lightweight walls and hollow slabs that are completely used as partition walls can be removed. Because the partition wall does not bear any pressure at all, the value of existence is to separate the space; the dismantling will not have any impact on the structure of the house. If you have to dismantle the heavy wall, it is not completely impossible.

The Ministry of Construction has regulations that if it is to be changed to a load-bearing wall, for example, the original design unit or the design unit with the same qualification as the original design unit will give modifications and reinforcement design schemes before the load-bearing wall can be demolished. In other words, it must be dismantled, but it can be reinforced. However, make sure that reinforcement is a correct and effective reinforcement.

Second, the door frame is embedded in the concrete and should not be removed. If it is dismantled or modified, it will damage the building structure, reduce the safety factor, and it is more difficult to reinstall the door.

Third, the low walls on the balcony side cannot be removed or changed. There is a window and a window on the wall between the room and the balcony. These doors and windows can be removed, but the wall below the window cannot be removed. Because the wall is a "weight wall", it plays like a scale. The effect, if the wall is removed, will reduce the bearing capacity of the balcony, causing the balcony to fall.

Fourth, the beams and columns in the room cannot be changed. Beams and columns are used to support the upper slab. Demolition or renovation will cause the upper slab to fall off, which is quite dangerous, so the beams and columns must not be removed or modified.

Fifth, the steel bars in the wall cannot move. When the pipeline is buried, if the steel bar is destroyed, it will affect the bearing capacity of the wall and the floor, leaving a safety hazard.

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