What is prefabricated building?

Prefabricated construction refers to the transfer of a large amount of on-site work from traditional construction methods to factories, where building components and accessories (such as floor slabs, wall panels, stairs, balconies, etc.) are processed and manufactured, transported to the construction site, and assembled and installed on site through excellent connection methods. With the development of modern industrial technology, building houses can be manufactured in batches and complete sets like machine production. Just transport the prefabricated building components to the construction site and assemble them. Prefabricated buildings can be divided into prefabricated concrete structures, steel structures, modern timber structures, etc. through the use of different structural materials. Because standardized design, factory production, prefabricated construction, information management, and intelligent application are adopted, they are representative of modern industrial production methods

What are the characteristics of prefabricated buildings

1. A large number of building components are produced and processed by the workshop, and the types of components mainly include: exterior wall panels, interior wall panels, laminated panels, balcony air conditioning panels, prefabricated beams and columns for stairs...

2. A large number of on-site assembly operations are greatly reduced compared to the original cast-in-place construction industry.

3. Adopting integrated design and construction of architecture and decoration, the ideal state is that decoration can be carried out synchronously with the main construction

4. Standardization of design and informatization of management. The more standardized the components, the higher the production efficiency, and the corresponding component costs will decrease. With the digital management of the factory, the cost-effectiveness of the entire prefabricated building will become higher and higher

5. Meet the requirements of green buildings

Advantages and disadvantages of prefabricated buildings

1. With the development of society, prefabricated buildings have become a vigorously developed form of construction in China due to their structural characteristics. The main advantages are:

(1) Good production efficiency, not affected by the natural environment, and controllable construction period.

. Due to a large number of production buildings being completed in factories, the on-site assembly time is short and the environmental impact is minimal

(2) Good accuracy and quality; Due to the good production environment in the factory, the manufacturing errors of prefabricated buildings are controllable, the accuracy is high, and the quality is well controlled

(3) Environmental protection, adopting factory production, greatly reducing construction waste, making it more environmentally friendly

(4) Reduce production costs; Factory production and assembly line production can greatly reduce the production cost of building components; At the same time, due to the decrease in labor force and the increase in labor costs in our country this year, prefabricated buildings can greatly reduce the use of manpower and also reduce construction costs; At the same time, it can effectively shorten the construction period, reduce the overall construction period, and greatly reduce construction costs

2. However, prefabricated buildings in China are still in the early stages of development, and there are still many problems that need to be solved slowly. The main problems include:

(1) low structural safety reserve and poor seismic resistance (mainly based on actual reports);

; At present, prefabricated buildings have relatively poor seismic resistance (mainly based on actual reports) compared to current building forms due to their insufficient connection methods and stiffness of components and the entire template system

(2) High construction costs; At present, due to the insufficient scale and immature technology and development of prefabricated buildings in China, the processing of component engineering in prefabricated buildings will be relatively high. Moreover, due to transportation costs, transportation costs will be higher when the distance is longer. However, as the scale of prefabricated buildings increases, the technology becomes more mature, and labor costs increase year by year, the overall construction cost will decrease until it is lower than Far lower than the current on-site construction mode

(3) Thermal insulation (mainly based on actual reports) has poor performance. Due to the lack of effective panel wall technology, the prefabricated construction of the enclosure system is also in a stage of suitable development. The current prefabricated building thermal insulation (mainly based on actual reports) is not yet perfect

(4) Small application industry: Although prefabricated buildings have been vigorously promoted by the country, they are currently greatly limited in terms of total height and floor height. There are still various defects in prefabricated buildings in our country, but technical problems can be solved through technological development, and cost issues can be solved through the development of scale and technology. I believe that some of the above shortcomings are temporary. As history has proven that industrialization is a necessary path for development, the development of prefabricated buildings in our country is sure to continue to improve