First, the advantages of increasing storey 

1. will substantially increase the construction area, save land acquisition costs and matching costs;

2. in the existing building, increasing the floor, the area of the same area, increase the area of the building density, saving land does not affect the coordination of the surrounding environment in the region;

3. In the process of upgrading the layer, through the rational adjustment of the flat and facade pattern of the original building, the original equipment of water heating and electricity is updated to meet the requirements of adjusting the use function and beautifying the environment.

4. the short construction period and small investment will play a very important role in the construction demand of the 13 profit growth.

5. increasing storey transformation is an effective way to transform existing buildings from low-rise or multi-storey buildings into multi-storey, middle high rise or high-rise buildings.

6. make full use of the growth of the bearing capacity of the foundation under the long-term load of the existing buildings, and improve the layer directly under the condition that the foundation is not treated or slightly treated, and its economic benefit is very remarkable.

Applicable conditions and key points of increasing storey

Whether the existing building meets the conditions for the upgrading of the floor, it should be identified by the age of construction, the degree of damage, the structure, the importance of the building and the requirements of the use. It is usually more reasonable and economical to add two or three layers to the building with good status, which is generally applicable to brick and concrete structures or brick and wood structures. There is more steel structure system, almost no lateral lateral movement. It usually does not need to calculate the internal force caused by the wind load. The stress characteristics mainly bear the vertical load, and the settlement is basically completed by long-term load, and the foundation strength has to be remainder.

It is necessary to analyze the economic and social benefits of the building, and to investigate and investigate the load analysis of the structural system, the condition of stress, the preliminary safety appraisal and the loading of the foundation foundation. And pay attention to the connection of all parts of the old and new buildings.