There should be the original structure of the building that can see the load-bearing wall, right?

Load-bearing wall What kind of wall is a load-bearing wall? In general brick-concrete buildings, precast slab walls cannot be removed or opened. Brick walls over 24 cm are also load-bearing walls. In addition, it is not allowed for someone to open the door and open the window on the load-bearing wall, which will also damage the load-bearing of the wall. If the steel bars in the wall are compared to the building structure and the body of an adult, then the steel bars in the wall are human bones and muscles. If the steel bar is destroyed when the pipe is buried, it will affect the bearing capacity of the wall and floor. If there is an earthquake, such walls and floors will easily collapse or break. The beams and columns in the room are used to support the upper floors. After being demolished, the upper floors will fall down, so they can't move. The low wall next to the balcony generally has a door and a window on the wall between the room and the balcony. These doors and windows can be removed and replaced, but the wall under the window can't be moved. This section of the wall is called the "counterweight wall", which plays the role of stirring the balcony like a heavy object. Demolishing this wall will reduce the bearing capacity of the balcony and lead to the balcony falling. The door frame of the "three-proof" or "five-proof" door is embedded in concrete. If they are removed, it will destroy the building structure and reduce the safety factor. But also destroyed the building structure at the entrance and increased the difficulty of reinstalling new doors. There are waterproof layers on the floors of the bathroom and kitchen. If they are destroyed, the downstairs will become "water curtain cave". So when you replace the floor material, you must be careful not to destroy the waterproof layer. If it is destroyed and rebuilt, a "24-hour water seepage experiment" must be done, that is, water is poured in the kitchen or bathroom, and it will not leak for 24 hours before it is qualified. )