Can the wall under the main beam open the door? Does it need to be hardened?

Depending on what structure you have, if the wall under the main beam is made of bricks, it will be fine if the whole wall is smashed, let alone open a hole, but be careful not to touch the beam.

It can be reinforced with steel after opening.

There is no big problem with the overall *** of the building, if it is under the load-bearing main beam, do not open it, open the door so that it may be okay in the short term and affect the quality of the building in the long term, unless you are not afraid of lawsuits. It's better not to.

It seems that you can't put it, the name is called the main beam, you have opened the main backbone, is it still safe? I think so.

Yes, it must have been done beams.

The opening lintel of the non-load-bearing wall bears the load of its upper wall, and when there is no door lintel, the brick structure of the upper part of the wall can only rely on its own stiffness to maintain stability, and may cause instability when encountering external forces that exceed its own stiffness. Therefore, it is necessary to set up lintels.

Small high-rise residential buildings mostly adopt short-limb shear wall structure, the floor height is, the height of the opening of the inner wall structure is, and the height of the connecting beam on the opening is generally 400mm, so that there is no doubt that the lintel is also erected in the height range from the bottom of the connecting beam beam to the top of the opening, the template needs to be re-erected, the steel inner reinforcement is bound, the concrete is poured, and then the masonry capacity is carried out, and if the masonry is not good, cracks will appear at the bottom of the beam and both sides along the edge of the rear masonry wall.

Small high-rise residential buildings mostly adopt short-limb shear wall structure, the floor height is, the height of the opening of the inner wall structure is, and the height of the connecting beam on the opening is generally 400mm, so that there is no doubt that the lintel is also erected in the height range from the bottom of the connecting beam beam to the top of the opening, the formwork needs to be re-erected, the steel bar is tied, the concrete is poured, and then the masonry is also carried out, and if the masonry is not good, cracks will appear at the bottom of the beam and both sides along the edge of the rear masonry wall.

Be sure to make beams, the stress structure of the opening hole is concentrated in the upper part, and it is dangerous if you don't do it.

It should have been made of beams, there will be no big problems, and the door frame may have to be compressed and deformed.

Hi, how is this door of your house now? My house is also a newly opened door opening, I don't know how to add beams, and I was pitted by the decoration team.

"Code for Design of Masonry Structures" GB50003-2011, the lintel is specified as follows:

For houses with large vibration loads or uneven settlement, concrete lintels should be used. When the span of the lintel is not greater than, the reinforced brick lintel can be used; When it is not larger, brick flat arch lintels can be used. For houses with large vibration loads or uneven settlement, reinforced concrete lintels should be used.

For brick and block masonry, when the wall height under the beam and slab is < N (n is the net span of the lintel), the lintel should be included in the load from the beam and slab, otherwise, the beam and slab load can not be considered.

For brick masonry, when the wall height on the lintel is hw< n 3, the wall load should be adopted according to the uniform self-weight of the wall, otherwise, it should be adopted according to the uniform self-weight of the wall with a height of n 3;

For block masonry, when the wall height on the lintel is < n 2, the wall load should be adopted according to the uniform self-weight of the wall, otherwise it should be adopted according to the uniform self-weight of the wall with a height of n 2.

The load of the lintel should be adopted according to the following provisions:

The lintel should be opened in the lintel first, and then the door should be opened, each side is greater than 100mm, and 2 10 steel bar side posts should be planted as door buttresses. The length of the reinforced concrete lintel on the ordinary brick wall should not be less than 24cm, that is, the thickness of a brick, but in fact the door is 38 walls, so the lintel is generally 38cm.