by 
Prefabrication rate = total volume of fabricated members ÷ total concrete volume..
They all have their own unique ID number to facilitate seating.
After the popularization of the industry, the construction cost can be reduced and the house price can be effectively restrained.
In order to ensure the smooth lifting, after the fabricated components are transported to the site, the stacking site needs to be reasonably arranged to facilitate the lifting.
It is conducive to environmental protection and resource conservation.
What is the most technically demanding of the above steps? The answer is the hoisting of fabricated components.
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Assembly rate = implemented assembly area ÷ total floor area.
In order to increase the connection between the fabricated members and the cast-in-situ layer and ensure the reliability and safety of the structure, the surfaces of the fabricated members are left with keyways or roughened.
Through the reflection principle of the small dressing mirror, it is convenient to plug the reserved reinforcement in the lower layer into the hole of the upper fabricated column.
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There are a large number of workers on the traditional operation site.
There can be a variety of connection modes between fabricated components, At present, the floor is usually in the form of 7 + 8 (70mm thick precast floor + 80mm thick cast-in-situ layer).
When building the interior wall, first install the skeleton, and then directly splice it, which is not only convenient and fast, but also convenient for subsequent demolition and modification.
The prefabricated components are prefabricated 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.
It is conducive to regulating the supply relationship, improving the speed of real estate listing, slowing down the current situation of insufficient market supply, and there is no need to queue up all night to buy a house.
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The progress of prefabricated buildings is about 30% faster than that of traditional methods.
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It is conducive to civilized construction and safety management.
After the hoisting of prefabricated components is completed, the reinforcement at the connection part shall be bound, and finally the node and the cast-in-situ layer of beam and slab shall be poured.
After the indoor fine decoration is industrialized, express delivery can be received at home, that is, disassembly and installation, which is fast and good.
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After demoulding, the finished fabricated plates and fabricated components are fabricated, temporarily stacked in the factory by category, and can be ready to be transported to the construction site.
The hoisting of fabricated composite beam and fabricated composite plate can also be pre assembled on site or build a fabricated display area for the parts with great hoisting difficulty.
The finished fabricated components are loaded on the road and transported to the site.
Cost control cost control and design management are the finishing point of the implementation process of prefabricated buildings.
First of all, on the external wall, this lock type splicing method is used, and some are butted with reinforcement skeleton.
There are few original cast-in-situ operations on the site, and the health does not disturb the residents.
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It is conducive to accelerating the progress of the project, and the efficiency is return.
Although they look very simple, they need accurate data to ensure successful splicing, so they also need to be extra careful in drawing.
After the prefabricated components are transported to the construction site, the reinforced concrete will be overlapped and poured, so the assembly room is very safe.
What are the advantages of prefabricated buildings? Why are these developed capitalist countries so keen on prefabricated buildings? The reasons are as follows: 1.
Concrete pouring and assembly line operation.
Holes shall be reserved during reinforcement binding.
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Prefabricated buildings have two important indicators, the proportion of assembly area and prefabrication rate.
From then on, we bid farewell to “gray”.
Only a small number of workers need to be left on the site, which greatly reduces the incidence of on-site safety accidents.
When binding reinforcement, the hook shall be embedded in it.
After the construction of the first floor, the columns of the upper floor are hoisted first, and then the main beam, secondary beam and floor slab are hoisted.
How are fabricated components produced? Taking the fabricated building board as an example, the production process is: steel formwork fabrication → reinforcement binding → concrete pouring → demoulding.
In addition, the reuse rate of steel formwork can be improved, and garbage, loss and energy saving can be reduced by more than half.
Just like moving, we usually arrange the goods handling sequence to reasonably reduce the workload.
Walls, slabs, stairs and other fabricated components have their own unique numbers.
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Now, a large number of site operations are moved to the factory.
Therefore, it is not unreasonable for the state to promote prefabricated buildings.
The construction process takes the prefabricated frame structure as an example.
The lower space is narrow and inconvenient to observe.
In the whole construction process, these small precast slabs are the most important.
“Assembly” is not just “erection”.
Hyaluronic acid, which is conducive to improving the construction quality of the construction industry, can make the construction products long-term and young.
Take the connection node of primary and secondary beams as an example to show the diversity of connection methods between fabricated members: connection edge node of primary and secondary beams – reserved notch of main beam – connection middle node of primary and secondary beams – connection node of primary and secondary beams of main beam reserved post cast section – how can there be no error in setting so many corbels on the main beam? That is to give fabricated members Piece number! In order to ensure that workers will not make mistakes, reduce construction errors and speed up the progress of the project, each component is provided with an ID card.
What is a prefabricated building? Like Toledo, a prefabricated building prefabricates some or all components in the factory and then transports them to the construction site for assembly.
After the pre assembly of the frame structure girder and the hoisting of the display area of the shear wall residence, bind the reinforcement of the cast-in-situ layer and prepare to pour the cast-in-situ layer concrete.
Compared with traditional construction methods, prefabricated buildings can not only be faster and more convenient, but also save manpower and materials.
It is conducive to improve the construction quality.
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Therefore, such “industrialized” and “industrialized” buildings have been widely used in Europe, America and Japan.
How is the most important lifting step operated? The dressing mirror in the figure above is prepared for the hoisting of the fabricated column.
Then fill, and finally add sealing strip caulking glue.
