The science and engineering man and the main body demolished the diary of Teacher Chen's decoration.

Mr. Chen in Nanjing is actually a science and engineering student, which is not true. In the process of dismantling and reforming the main body, he showed his true nature as a science and engineering person, and he spoke clearly. There is a real difference between men's decorations and women's decorations. What is the difference? You will know after reading it.

House information: 68_

Decoration style: modern

Decoration method: half package

Residential area: Nanjing Ruijin North Village Residential Area

Renovation progress: main body demolition and renovation.

Decoration period: 3 days

20 13 12 13 started construction.

13 is an auspicious day, and people in China pay attention to this. Get up at 4 am and go to the new house. I went so early because my mother chose a date and time and said that she would start work at 5 am 18. This is actually a symbolic ceremony, indicating the beginning. Before the decoration company suggested buying a firecracker to set it off, I refused. I hate Ding Mao's bad habit of shooting at the sky in the morning, and I don't want to do this to others.

Fortunately, it is relatively simple to follow the rules in our hometown. Although I don't believe it myself, I still did it according to the rules for the sake of my family. I burned a piece of paper on the spot, symbolically fiddled with it, and everything was silent, which officially started!

20 13 12 13 "bid farewell to the old and welcome the new"

I went back to my apartment to have breakfast, prepared for it, and then went to my new home. Find someone to clean the furniture and tear down unnecessary steel doors and windows. Furniture collectors came over and said that they didn't want old furniture, but they were interested in doors and windows. Quote 100 yuan, deal. I asked them to move the old furniture, and the price was 100. Forget it. To save trouble, I don't want 100, you can take it all. The gang left happily with what I gave them. For this reason, my mother was particularly angry and felt that it was not cost-effective, and she gave people a bunch of things for nothing. I think this is more open-minded. I pay people to do things. If no one wants old furniture, it will take a lot of effort to carry it downstairs and it will cost money to tow it away. Anyway, there is no money, and doors and windows are not necessary.

20 13 12 13 community "stepping on the spot"

After 10, Xiao Liu, the project manager and worker's master, came over and gave a preliminary account of the transformation plan. My designer didn't come over this afternoon, and made further disclosure with the workers, and confirmed the detailed plan of hitting the wall and shoveling the wall. The worker didn't start work that day, and the worker's master said that he didn't have the strength to work in the afternoon and would start work tomorrow morning. The worker's master suggested that we go to the community to ask where the garbage is piled up. When we found the community, the service staff in the community were very enthusiastic, introduced the common practices, assigned us the stacking location and registered our contact information. We also learned about the surrounding situation by the way.

20 13 12 14 scheme blocked.

The workers began to work early in the morning. When I went there in the morning, I had done a lot of work, shoveling off the wall skin, revealing red bricks, ring beams, floors and building structures, which were different from what I had imagined in advance, and soon found the problem.

In the initial design, in order to put the bathroom cabinet in the bathroom, it is necessary to knock out a wall of 12 in the bathroom, and then expand it to the second bedroom by 60 cm to build a new wall, so that the bathroom is much larger and the space of the second bedroom is smaller, but it is ok. After shoveling off the wall skin, it is found that although the wall originally intended to be smashed is 12, there is a beam with a width of 12 cm and a height of more than 30 cm, but the beam is not a floor, but a red brick wall of the upstairs unit. After repeated in-depth discussions with the wall-smashing master, project manager and designer, I finally made a decision to give up the original plan and choose a new one.

20 13 12 14 teacher Chen's teaching time

Having said that, I have to talk about the structure and transformation of the old house. Old houses are generally not well structured, and now there is a strong demand for decoration. After buying a house, I began to consider the renovation of the house. How to transform it to meet the housing needs needs needs to be functional, convenient and fast. To this end, I also look up relevant information on the Internet. I don't have too detailed information. I only know that most of the old houses before the 1990s are brick-concrete structures and prefabricated buildings, and I have no intuitive impression and concept of what kind of structures they are.

Structurally, the house should be built with red bricks on a well-laid foundation. After the first floor is completed, the ring beam should be concreted at the required position, and then the floor slab should be put aside and covered with another layer. The wall perpendicular to the precast slab is built on the precast slab and the wall horizontal to the precast slab is built on the beam. Therefore, the wall perpendicular to the precast slab does not necessarily have beams, and the precast slab may be placed directly on the wall, while the wall horizontal to the precast slab has beams, and the wall on the upper floor directly rests on the beams on the lower floor.

The role of ring beam in brick-concrete structure has the following points (plagiarism):

1, which strengthens the overall stiffness of masonry structure, has a binding effect on masonry, and prevents the uneven settlement of foundation or the influence of large vibration load on houses.

2. Strengthen the connection of vertical and horizontal walls to improve the integrity of the house; As the edge component of the floor, it improves the horizontal stiffness of the floor; Reduce the free length of the wall and improve the stability of the wall; Restrict the development and extension of oblique cracks in the wall and improve the shear strength of the wall; Reduce the influence of uneven settlement of foundation on houses during earthquake.

3, bearing and bending function, reduce uneven settlement and bear the weight of the wall.

The demolition of 20 13 12 15 went smoothly.

This is the external wall, and there is a ring beam at the top of the external wall, which plays the role of overall reinforcement. The walls of the building are surrounded as a whole, which increases the stiffness of the structure and can also resist uneven settlement. This ring beam is mainly used to resist bending and tension. The experienced master said that punching holes in the ring beam, leaving 5 cm above and 5 cm below, will not hurt the main reinforcement and will not affect the function of the beam.

This is the 24-story inner wall of the second bedroom and kitchen. There is no ring beam at the top, and the precast slab is placed directly on the wall. Therefore, this wall must not be smashed. Opening the door halfway is also very dangerous and requires special reinforcement measures. Don't try it. One of my alternatives was to open a doorway on this wall, but later I found it was not feasible and gave up. Punching holes in the wall is not a big problem.

This is the 24-story interior wall between the master bedroom and the living room. Like the inner wall of the second bedroom, there is no ring beam, but there is a beam at the other end of the wall, which is the foundation of the cantilever balcony and is pressed by the upper wall to ensure the safety of the cantilever balcony. This beam is mainly bending resistant, so it is not a big problem to punch holes in the beam. Pay attention to drilling holes at the root of the beam. Small holes in the air conditioner are ok, not big holes.

This is the beam on the aisle, which is used to rest the top two floors of the bathroom. One end is connected with the ring beam, and the other end is placed on the brick wall above. This beam is mainly a load-bearing beam, so the brick wall supports the column. This part of the wall can't be hit at all, otherwise the beam will lose its fulcrum. This kind of beam is mainly compressed. My understanding is that drilling at the root of the beam is not a big problem, and drilling in the middle is not allowed. The size of the hole should be controlled, not too big.

This is a wall between the living room and the corridor. There is a ring beam on the wall, which is thicker. Although this wall is a 24-story back wall, it is not a big problem to knock off this half wall because of the support of this thick beam. To be on the safe side, I went to my neighbor's house upstairs to have a look. They are on the sixth floor, and the wall of his house has also been knocked down, so the beam of my house is no longer load-bearing, so it is safer to knock down the wall below.

This is a thin wall between the second bedroom and the bathroom. Although it is a 12 wall, there are beams on the wall. This beam is only 12 wide and about 30 cm high. The red bricks on the upper floor are laid directly on the beams. Although both the project manager and the designer say that the wall of 12 can be perforated, I think it is still dangerous, at least unsafe, to let this beam bear the weight of the wall above completely. Although it may not be broken, a slight bending will cause the upstairs wall to crack, and the consequences are unimaginable. Therefore, it is ok to open the door hole under this wall, but it must not be completely destroyed.