There are few original cast-in-place operations on site, and the health does not disturb the residents.

In order to ensure the smooth lifting, after the precast components are transported to the site, it is necessary to reasonably arrange the stacking site to facilitate the lifting.

The higher the prefabrication rate, the higher the cost.

The dressing mirror is prepared for the hoisting of the cast column.

4.

Just like moving, we usually arrange the moving sequence of goods to reasonably reduce the workload.

3.

▲ the most eye-catching feature of the assembled column hoisting in the above figure is the appearance of the dressing mirror on the construction site.

How does this most important lifting step work? Look at the pictures.

The precast components are precast in the factory, which can maximally improve the common quality problems such as wall cracking and leakage, and improve the overall safety grade, fire resistance and durability of the residence.

In addition, the reuse rate of steel formwork is improved, and garbage, loss and energy saving can be reduced by more than half.

Take the primary and secondary beam connection nodes as an example to show the diversity of connection processing methods between cast members: ▲ primary and secondary beam connection edge nodes – main beam reserved notch ▲ primary and secondary beam connection middle nodes – main beam reserved post cast section ▲ primary and secondary beam connection nodes – how can so many components with brackets on the main beam not make mistakes? Fabricated component number!! In order to ensure that the workers will not make mistakes, reduce construction errors and speed up the project progress, we have applied for ID cards for each component, and they all have their own unique ID number, which is convenient for seating.

▲ after the pre assembly of the frame structure girder and the exhibition area of the shear wall residence ▲ the hoisting is completed, the reinforcement of the cast-in-place layer is bound and the cast-in-place layer concrete is ready to be poured.

In order to increase the connection between the cast members and the cast-in-place layer and ensure the reliability and safety of the structure, the surfaces of the cast members are left with keyways or roughened.

It is conducive to accelerating the progress of the project.

2.

▲ walls, slabs, stairs and other cast components all have their own unique number.

6.

1.

After the precast components are transported to the construction site, the reinforced concrete will be overlapped and poured, so the assembly room is very safe.

The construction site brother is very smart.

Prefabrication rate = total volume of cast members ÷ total concrete volume.

Is it possible that the cost management has cleared the clouds and seen the sunrise for the cast buildings.

There are a large number of workers on the traditional operation site.

Do you still remember to take a selfie in your work? Haha, you are wrong.

The progress of precast buildings is about 30% faster than that of traditional methods.

It is conducive to civilized construction and safety management.

If you can make it clear with pictures, there is absolutely no nonsense.

Why are these developed capitalist countries so keen on precast buildings? Naturally, it has great benefits.

Through the reflection principle of the small dressing mirror, it is convenient to plug the reserved reinforcement at the lower layer into the holes of the cast column at the upper layer.

After the hoisting of precast components is completed, the reinforcement at the connection part shall be bound, and finally the cast-in-place layer of nodes and beams and slabs shall be poured.

Only a small number of workers need to be left on the site, which greatly reduces the incidence of on-site safety accidents.

5.

▲ hoisting of cast composite beams ▲ hoisting of cast composite plates can also be used for pre assembly or construction of cast exhibition areas on site for parts with great hoisting difficulties.

What is a precast building? We can imagine the components made in advance, such as beams, slabs, columns and walls, as building blocks, and only need to put them together at the construction site.

However, these are not enough for developers.

“Assembly” is more than “erection”.

There are many connection modes between precast members.

Assembly rate = implementation assembly area ÷ total floor area.

Fixing Socket Angular End Nail Plate

Cost control and design management are the finishing touches of the implementation process of precast buildings.

The construction process takes the precast frame structure as an example.

After the indoor fine decoration is industrialized, express delivery can be received at home, which can be disassembled and installed quickly and well.

According to preliminary statistics, the cost increment is about 150 yuan for every 10% increase in prefabrication rate..

The space at the lower part is narrow and inconvenient for observation.

After the popularization of the industry, the construction cost can be reduced and the house price can be effectively suppressed.

Like building blocks, precast buildings prefabricate some or all components in the factory, and then transport them to the construction site for assembly.

Knock on the blackboard and draw the key points: precast buildings have two important indicators, the proportion of assembly area and the prefabrication rate.

It is conducive to regulating the supply relationship, improving the listing speed of real estate, slowing down the current situation of insufficient supply in the market, and there is no need to queue up all night to buy a house.

Therefore, such “industrialized” and “industrialized” buildings have been widely used in Europe, America and Japan.

▲ understand the on-site construction process of precast structures in one drawing.

▲ the finished cast components are loaded onto the road and transported to the site.

Click the blue word to focus on what our precast buildings are? How are precast buildings produced? How is the site constructed? How about the cost? What are the advantages over other materials? Xiaobian brings you to understand.

It is conducive to environmental protection and resource conservation.

It is conducive to improving the construction quality.

Hyaluronic acid, which is conducive to improving the construction quality of the construction industry, can make the construction products long-term and young.

At present, the floor is usually in the form of 7+8 (70mm thick precast floor + 80mm thick cast-in-place floor).

▲ holes shall be reserved during rebar binding ▲ the hook shall be embedded during rebar binding ▲ concrete pouring, assembly line operation ▲ after demoulding, the cast members of the finished cast plate shall be cast, temporarily stacked in the factory by category, and then ready to be transported to the construction site.

From then on, we bid farewell to “grey”.

How to produce? Taking the precast building board as an example, the production process is: steel formwork production → reinforcement binding → concrete pouring → demoulding.

The efficiency is return.

What is the highest technical requirement in the above steps? The answer is the hoisting of cast components.

Now, a large number of site operations are moved to the factory.

After the construction of the first floor is completed, the columns of the previous floor are hoisted, followed by the main beam, secondary beam and floor slab.