First, the understanding of the renovation of the wall
In our traditional concept, there has always been such a view that the load-bearing wall in the room cannot be removed, but the non-bearing wall can be removed. This is actually a major misunderstanding.
In fact, not all non-load-bearing walls are free to demolition. The so-called non-load-bearing wall refers to a house made up of a column frame made of reinforced concrete. The floor is supported by a horizontal and vertical array. The array is supported by columns and the columns are supported by the foundation. This structure is usually visible inside the column. The wall between columns is mostly filled with hollow bricks or ordinary bricks, which are generally non-load-bearing walls.
Many people believe that non-load-bearing walls do not bear weight, but the actual situation is not the case.
Because non-load-bearing walls are secondary load-bearing members in relation to the load-bearing walls, it is also an extremely important support for the load-bearing walls. It bears at least two parts of load, one part is the weight of the wall. In a six-story residential building, for example, the non-supporting walls in the ground floor houses bear the weight of the upper five walls; the other part is structurally speaking, the non-bearing walls are usually It is also a design earthquake wall. In other words, if an earthquake occurs, these non-load-bearing walls will bear seismic forces together with the bearing walls. Therefore, for a certain family, removing a non-load-bearing wall or making a hole in the wall is not a big problem, but if residents of the whole building are arbitrarily dismantling and changing the non-load-bearing walls, the anti-seismic force of the building will be greatly reduced.
For house decoration, you must not arbitrarily wear holes in the load-bearing walls, dismantle the walls connecting the balconies and doors and windows, and enlarge the size of the original doors or windows or build additional doors and windows. This practice will cause partial cracks in the buildings and severely affect the earthquake resistance, thus shortening the use of the buildings. life.
II. Precautions for dismantling the wall
1, before the demolition of the wall should be reported to the property approval
Under normal circumstances, when the building is completed, the original design unit will leave a drawing for the property company. The thickness and material of various walls, such as load-bearing walls and non-bearing walls, are clearly indicated on the drawings. According to the drawings, the property company can determine which walls can be removed. Therefore, the owner must submit the construction drawings given by the designer to the property company before the wall is reconstructed.
2. It is forbidden to remove the bearing wall
In the renovation, the load-bearing wall cannot be changed and many people know it. But what kind of wall is a load-bearing wall, not many people can make it clear. The load-bearing wall is a wall with no pre-fabricated beam on the wall. The thickness of the wall of the load-bearing wall on the floor plan drawing is obviously thicker than that of the non-bearing wall. The thickness of the solid wall is generally 24 cm, and the non-bearing wall is 10~ 15 cm. The outer walls are usually load-bearing walls, and the walls shared with neighbors are also load-bearing walls. Generally non-load bearing walls are in bathrooms, storage rooms, kitchens and aisles.
In a word, the transformation of the house structure to demolish the wall will inadvertently affect the structural safety of the house. If the owner is to carry out the transformation of the house structure, he will need to look at the design drawings of the construction structure, look at the load-bearing walls, and consult the relevant professionals before proceeding with the construction.
3, do not open the wall connecting the balcony
In order to improve the lighting of the room, some owners removed some of the walls connecting the balconies and increased the width of the balcony entrance. This is not allowed. Because the exterior walls of the house are usually load-bearing walls, it is very dangerous even if you open the windows above.
In addition, some rooms have a window and a door between the balcony and the balcony. These doors and windows can be removed, but the wall below the window cannot be removed. The wall of the window line is called the "counterweight wall" and it acts as a balcony. If the wall is removed, the bearing capacity of the balcony will drop, causing the balcony to fall.
4, the top beam is not removable
When some of the owners renovate, they feel that the beams on the top of the house are aesthetically pleasing, and they intend to remove the prominent parts of these beams. In fact, the crossbeam in the middle of the house is absolutely not to be decomposed, because the crossbeam supports the upper floor, and the dismantlement or reconstruction will cause the upper floor to fall.
In addition, it should be noted that if some beams are connected to the top of the wall, the wall can only be removed when the wall is removed. For example, on this site, the wall between the bedroom and the study was dismantled. However, there are beams above the wall. This area cannot be moved. Otherwise, there are potential safety hazards. When the beam is not removed, you can use the ceiling to hide the beam and it will not affect the appearance.
5, repair after the wall can not save
The wall was safely dismantled, but the subsequent repair work cannot be ignored. For example, when the original wall surface is demolished and red bricks are used to newly erect the wall surface, it is necessary to set the lacing on the newly constructed wall. “Lajin†is the construction method for the joints between old and new walls. It is to pull new and old walls with steel bars to ensure the stability and shock resistance of the walls.
In addition, openings are made in the wall, and a reinforced concrete "beam" is erected above the door opening. This can share the pressure of the wall above the door opening and prevent the pressure above the wall from directly pressing on the door frame.
Concluding remarks: Renovation and demolition of walls can not be arbitrarily done. Find out the role of each wall according to the actual situation, clearly detachable or not, and finally need to follow the process. The above is the relevant introduction of the demolished wall, but also want to know more decoration knowledge, please pay attention to this website decoration information channel.
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