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

At present, the floor slab usually adopts the form of 7+8 (70mm thick precast floor+80mm thick cast-in-place layer).
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After the construction of the first floor is completed, the columns of the previous floor shall be hoisted first, and then the main beam, secondary beam and floor slab.

Don’t you guys forget to take self-portraits in your work? Ha ha, then you are wrong.

The most eye-catching thing in the above picture of precast column hoisting is the appearance of the vanity mirror at the construction site.

The construction site boy is very smart, handsome.

Magnet Recess Former

From then on, we will say goodbye to “grey”.

When the reinforcement is bound, it is necessary to embed the hook in the concrete pouring.

It is beneficial to environmental protection and resource conservation.

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

If we take the cave of the cave man at the top of the mountain 30000 years ago as the “prototype” of the original building, we have to admit that the construction industry can be regarded as the “oldest” industry, from the “pyramid” with great difficulty and high level of construction technology 5000 years ago to the world’s tallest building – the Khalifa Tower in Dubai.

After the assembly line operation is demoulded, the finished precast slab cast components are made and temporarily stacked in the factory by classification, and then ready to be transported to the construction site.

5.

“Assembly” is not just “erection”.

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

In order to increase the connection between the cast components and the cast-in-place layer, and ensure the reliability and safety of the structure, the surface of the cast components are left with keyways or rough treatment.

After the hoisting of precast components is completed, the reinforcement at the connection part shall be bound, and the pouring of the node and the cast-in-place layer of the beam and slab shall be carried out at last.

There is no love without reason in the world.

Hyaluronic acid, which is conducive to improving the construction quality, can make the construction products lasting and youthful.

There can be many connection modes between precast components.

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

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.

How to produce? How are cast components produced? Take the precast building slab as an example, the production process: steel formwork production → reinforcement binding → concrete pouring → when the demoulding reinforcement is bound, it is necessary to reserve holes for reinforcement binding.

However, in the oldest industry, today’s construction method is still based on on-site pouring, and the technology content and production efficiency of the entire industry are very low, far inferior to manufacturing.

The precast building is about 30% faster than the traditional way.

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 for the convenience of lifting.

What is the highest technical requirement in the above steps in the field construction process of precast structure? The answer is the hoisting of precast components.

There is no need to queue up all night to buy a house.

Is it possible for the construction industry to realize the leap from “manual” labor to advanced “assembly line” production in 100 years? Is it possible to achieve the leap from “integrated” furniture to “assembled” furniture in 50 years? This is the dream of generations of builders.

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

After the factory of indoor fine decoration, it can realize the delivery at home, which is quick and good.

4.

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

Assembled composite beam hoisting Assembled composite plate hoisting can also play a demonstration role in pre-assembly or construction of precast display area on site for parts with great difficulty in hoisting.

6.

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

After the concept of “precast building” was put forward, we can see the new hope of the traditional industry.

Through the reflection principle of the small vanity mirror, it is convenient for the insertion of the lower reserved reinforcement and the upper cast column hole.

It is conducive to civilized construction and safety management.

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

So, what is precast building? How are precast buildings produced? How is the site constructed? How about the cost? What are the advantages over other materials? Xiao Bian brings you to understand.

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

What can be explained with the picture is absolutely not nonsense.

The lower space is narrow, which is not convenient for observation.

The production and construction process of finished precast components loaded on the road and transported to the on-site precast building is much more beautiful than the traditional concrete structure with flying dust and dusty face.

It is beneficial to improve the construction quality.

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3.

It is beneficial to adjust the supply relationship, improve the listing speed of the real estate, and slow down the current situation of insufficient market supply.

It is beneficial to speed up the efficiency of the project progress, that is, the return.

Now a large number of site operations are moved to the factory, and only a small number of workers are left on the site, which greatly reduces the incidence of on-site safety accidents.

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

Have you ever played Lego in precast buildings (see it)? We can think of beams, slabs, columns, walls and other pre-made components as Lego blocks, and we just need to put them together at the construction site.

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

What is the most important lifting step? Look at the picture.

Why are these developed capitalist countries so keen on precast buildings? The benefits are greatly increased~1.