The basic prefabricated components of a prefabricated concrete structure are classified according to the characteristics and properties of the components that make up the building, including:
A. Prefabricated floor slab (including prefabricated solid board, prefabricated hollow slab, prefabricated slab, prefabricated balcony)
B. Prefabricated beams (including prefabricated solid beams, prefabricated composite beams, prefabricated U-beams)
C. Prefabricated walls (including prefabricated solid shear walls, prefabricated hollow walls, prefabricated laminated shear walls, prefabricated non-bearing walls)
D, prefabricated column (including prefabricated solid column, prefabricated hollow column)
E. Prefabricated stairs (prefabricated stair sections, prefabricated rest platforms)
F, other complex shaped members (prefabricated bay window, prefabricated bay window outer wall, prefabricated corner outer wall, prefabricated whole kitchen bathroom, prefabricated air conditioning board, etc.)
Various prefabricated components can be further subdivided according to process characteristics, for example:
Prefabricated slabs include prefabricated prestressed laminated slabs (represented by Nanjing Dadi), prefabricated truss reinforced composite slabs (represented by Hefei Baoye West Wade), prefabricated ribbed prestressed laminated slabs (PK panels) (Jinan Wan) Star is representative) and so on;
The prefabricated solid shear wall consists of prefabricated steel sleeve shear wall (represented by Beijing Vanke and ), prefabricated confined slurry anchor shear wall (represented by Heilongjiang Yuhui), and pre-pulp anchor hole indirect lap shear wall ( Zhongnan Construction as representative), etc.;
The prefabricated exterior wall can be further divided into prefabricated ordinary outer walls (represented by Changsha Yuanda and Shenzhen Vanke) and prefabricated sandwich sandwich insulation exterior walls (Wanke, Yuhui and Yatai).
In short, the form of prefabricated components is diverse and can be flexibly adopted according to the characteristics and requirements of the project. It is not repeated here. The following example pictures are typical styles of various prefabricated components:
Prefabricated floor slabs, prefabricated balconies
The use of prefabricated slabs can reduce the workload of the construction site support formwork, save labor and turnover materials, and has good economy. It is an important measure for precast concrete buildings to reduce the cost, speed up the construction period and ensure the quality. Prestressed slabs can be effectively utilized. The action of high-strength materials can reduce the cross-section and save steel, which is an important measure for energy saving and carbon reduction. Prefabricated slabs have high production efficiency and fast installation speed, which can create significant economic benefits.
Prefabricated truss reinforced floor slab
Prefabricated prestressed laminated slab
Prefabricated ribbed prestressed laminated slab
Prefabricated solid floor
Prefabricated hollow floor
Prefabricated balcony
Fully prefabricated balcony
· Precast beam
The prefabricated beam is the main horizontal load-bearing component, and it is a template-free technology with the prefabricated floor slab, which has good economic benefits and broad development space.
Prefabricated prestressed beam
Prefabricated composite beam
Prefabricated U-shaped hollow beam
Double-sided prefabricated composite beam
· Prefabricated wall
In the residential wall, there are many walls, and the prefabricated wall can improve the performance and quality of the building. From the perspective of the whole life cycle of the building, it can save the maintenance cost during the use period, reduce the leakage risk of the door and window openings, and reduce the external wall insulation material. The fire risk extends the insulation and decoration life. It can eliminate the external wall scaffolding, improve the construction speed, and is conducive to on-site construction safety management. It has good indirect benefits. For the characteristics of domestic houses, prefabricated walls and prefabricated slabs will be industrialized. The main products of residential components.
Prefabricated solid shear wall
Prefabricated hollow wall
Prefabricated laminated shear wall
Ceramsite hollow strip
Prefabricated sandwich insulation exterior wall
Prefabricated insulation decoration an external wall
Hong Kong construction method wall hanging board
Japanese construction method wall hanging board
· Prefabricated column
Prefabricated solid column
Prefabricated hollow column
· Prefabricated stairs
Prefabricated stairs
Staircase finished protection
· Other complex shaped components
(Prefabricated bay window, prefabricated bay window, prefabricated corner wall, prefabricated kitchen and bathroom, prefabricated air conditioning panels, etc.)
Prefabricated complex shaped parts Although the prefabricated production cost is not low, it is often due to the difficulty of on-site construction and the difficulty of quality. Under a certain number of premise, it can be transferred to the factory for prefabrication, which not only ensures the quality, but also improves the construction speed on site. There are certain economic advantages in mass production.
Prefabricated heat preservation bay window
Prefabricated exterior wall with bay window
Prefabricated corner wall
Prefabricated whole bathroom
