A prefabricated building is a building that is assembled from a prefabricated structure on site. The advantages of this type of construction are the speed of construction, the small constraints of weather conditions, the saving of labor and the improvement of construction quality. So let's take a look at the characteristics of prefabricated buildings and the construction process!
What is a prefabricated building
Introduction
With the development of modern industrial technology, building houses can be manufactured in batches like machine production. As long as the prefabricated building components are shipped to the site and assembled, it becomes.
Assembled buildings began to attract people's interest in the early 20th century and were finally realized in the 1960s. Britain, France, the Soviet Union and other countries first tried. Due to the rapid construction speed of the prefabricated buildings and the lower production costs, they are quickly promoted throughout the world.
The earliest fabricated buildings were dull and stereotyped. Later, people made improvements in design, increased flexibility and diversity, and made prefabricated buildings not only build in batches but also in rich styles. In the United States, there is a kind of mobile home, which is a more advanced assembly building. Each residential unit is like a large trailer. It only needs to be pulled into the site with a special car, and then lifted onto a floor mat and embedded by a crane. A good waterway, power supply and telephone system can be used together. The interior of the mobile home has heating, bathroom, kitchen, dining room, bedroom and other facilities. The mobile homes can be combined into one unit and they can be connected to each other.
Prefabricated building construction features introduced
(a), superiority:
1. The components can be industrialized in the factory. The construction site can be directly installed. It is convenient and quick, and the construction period can be shortened.
2. Mechanized production of components in the factory makes it easier to control product quality.
3. The input of turnover materials is reduced, and the rental expenses for the materials are reduced.
4, reduce the wet work site construction, is conducive to environmental protection.
5, due to the reduction of the amount of work on the construction site, can reduce the material waste to a certain extent.
6. The degree of mechanization of components is high, which can greatly reduce the on-site construction staffing.
(b) Limitations:
1, due to the current domestic design, acceptance criteria, etc. are too lagging behind the development of construction technology, assembly-type buildings in the building's total height and floor height have greater restrictions.
2. The use of embedded parts and bolts in buildings has increased significantly.
3, component factory production due to mold limitations and transportation (horizontal vertical) restrictions, component size can not be too large.
4. The requirements for vertical transportation machinery on the site are relatively high. Larger hoisting machines are required.
5, the use of factory prefabricated components, prefabricated plant from the construction site can not be too far.
Assembled construction process
PC component production stage process description:
1. Make PC steel molds of different sizes and shapes 2. Mechanically make PC steel cages
3, pre-laying stone, brick and other decorative materials 4, and then into the pre-stripped steel bars, all kinds of embedded parts
5ã€Concrete after pouring through the processing plant, general contractor and supervision
6, concrete steam curing, steam curing 6-9 hours, after the concrete strength reaches 70% demoulding
7. After passing the inspection, the truck will be transported to the construction site according to the progress of the construction site.
The whole assembly process of the building is introduced:
1. Installation of exterior wall panels (sandwich sandwich insulation panels) 2. Installation of wall panel connectors and panel seams. 3, laminated beam installation. 4, interior wall plate installation. 5, column, shear wall steel banding. 6, the elevator shaft template installation. 7, shear wall, column template installation. 8, wall, column poured concrete.
Third, compared with the traditional process
Advantages compared with traditional methods: The construction site cancels the external construction, the interior and exterior wall plastering procedures are cancelled, the steel bar is uniformly distributed by the factory, the floor bottom mold is removed, and the wall plastic template replaces the traditional wood formwork, and the on-site construction waste can be greatly reduced. .
Advantages compared with traditional methods: PC components are prefabricated at the factory and components are transported to the construction site and lifted in place by a large hoisting machine. Operators only need to work in place and temporarily fix the work, which greatly reduces the labor intensity of operators.
The above points are the summary of this website for everyone to summarize what is the structure of building, prefabricated building features and construction process related information, I believe we will have a certain understanding after reading, so that everyone will know a lot, If you still have those who want to know, you can check it out on our website.
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