The elevated floor refers to the independent space area formed by excluding the ground or roof part through structural measures or technical means inside or outside the building. It was usually used to store equipment, equipment foundations, pipes, communications, entertainment, sports, and other facilities. The elevated layer could protect the foundation and structure of the building from damage and also improve the earthquake resistance of the building. The elevated part of the building referred to the part between the ground and the elevated floor of the building. This part was usually isolated by structural measures or technical means. It was usually made of steel bars, concrete, steel, and other materials. The function of the suspended part of the building was to isolate the friction and pressure between the ground and the suspended layer, and at the same time, it could also improve the stability of the building. In some high-rise buildings, due to the limitations of the structural form, it is impossible to set up an overhead layer above the ground floor. Therefore, it is necessary to set up a building suspension part below the ground floor to ensure the safety of the building.