What is a prefabricated building with steel structure

The structural system of the building is a prefabricated building composed of steel (structure) parts.

It must be a prefabricated steel structure building if the steel structure, enclosure system, equipment and pipeline system and interior system are harmonious and unified.

Superior seismic performance is one of the main advantages of steel structure buildings.

At present, the beam-column joints of the prefabricated steel structure are mainly connected by bolt welding. However, the prefabricated steel structure is recommended to use bolted joints. The advantages of bolted joints (weld-free connections) are that they can be installed quickly and the quality of the work can be controlled more easily.

Extended Materials. Compared with prefabricated concrete buildings, prefabricated steel structure buildings have the following advantages:

1. There is no on-site cast-in-place node, the installation speed is faster, and the construction quality is easier to be guaranteed.

The steel structure is a ductile material with better seismic performance.

3. Compared with the concrete structure, the steel structure has a lighter weight and a lower foundation cost.

The steel structure is possible.

materials, more green and environmentally friendly, etc.

Disadvantages: 1. Compared with the prefabricated concrete structure, the exterior wall system is different from the traditional building and is more complex.

2. If it is not handled properly or there is no experience, the problem of fire prevention and anti-corrosion needs to be paid attention to.

3. If the design is not appropriate, the steel structure is more expensive than the traditional concrete structure, but it still has a certain economy compared with the prefabricated concrete building.

Prefabricated steel structure.

Both steel structure and prefabricated building have their own advantages and applicable scenarios, and the specific choice of afterglow should be decided according to actual needs.

Advantages of steel structure building:

1.High strength: Steel has high strength and rigidity, and is able to support long-span roofs and walls.

2.Earthquake and wind resistance: steel structure houses can effectively resist natural disasters such as reputation and wind disasters.

3.Good durability: the steel quality is stable, will not be damp, will not be moth-eaten, and the service life is more than 50 years.

4.Short construction period: The steel structure house adopts prefabricated production and on-site assembly, which can effectively shorten the construction period.

Advantages of prefabricated buildings:

1.Environmental protection: The prefabricated building adopts modular design, which can minimize the damage to the original natural environment and realize the reuse of resources.

3.High efficiency: due to the production line production, it is not affected by weather, season and other factors, and the prefabricated building process is smooth, and there is no engineering construction waste.

4.Saparator: The ability to meet strict quality control requirements during factory production can improve the safety of buildings.

Therefore, when selecting steel structures and prefabricated buildings, we should choose according to the specific situation, and make reasonable comparisons and evaluations to find the most suitable architectural scheme for ourselves.

Pros:There is no on-site cast-in-place node, the installation speed is faster, and the construction quality is easier to be guaranteed; The steel structure is a ductile material with better seismic performance. Compared with the concrete structure, the steel structure has a lighter weight and a lower foundation cost; The steel structure is a first-class material, which is more green and environmentally friendly.

Cons:Compared with the prefabricated concrete structure, the exterior wall system is different from the traditional building and is more complex. If it is not handled properly or there is no experience, the issue of fire prevention and corrosion protection needs to be paid attention to; If the design is not appropriate, the steel structure is more expensive than the traditional concrete structure, but it still has a certain economy compared to the prefabricated concrete building.

First, the advantages of prefabricated steel structure - light.

The materials used in steel structure buildings have the characteristics of light weight and high strength, and the weight of concrete buildings is reduced by about 30%.

Second, the advantages of prefabricated steel structure - fast.

Due to its different construction characteristics, the steel structure is more than 50% longer than the PC construction period.

Third, the advantages of prefabricated steel structure - good.

The well-designed steel structure building has superior performance.

Fourth, the advantages of prefabricated steel structure - province.

Provincial" embodiment is mainly:

The steel structure is lightweight, high strength, and saves materials.

The construction process is energy-saving, water-saving and land-saving.

The material can be disassembled and recycled, and the ** rate reaches 70%.

The cost of well-designed steel structures with excellent systems is lower.

Due to the continuous rise in labor costs, the cost of traditional concrete structures, including labor, formwork and materials, is higher than that of steel structures.

PC is higher than traditional concrete buildings, about 400 yuan more expensive.

For some specific buildings such as dormitories, the prefabricated steel structure scheme can reduce the cost by about 30% compared with the prefabricated concrete scheme.

FYI.

The construction period is short, the seismic resistance is good, the cost is relatively low, and the construction process is energy-saving, water-saving and land-saving.

Answer]: a, b, c

2021 2020 Edition Textbook P32

Prefabricated steel structure building, main structure system two, enclosure structure system three, building line balance finger (roof) cover structure barrage system.

Answers]: a, b, d, e

Prefabricated steel structure building refers to the structural system of the building, which is assembled by steel structure and parts through reliable connection. The prefabricated steel-type Wang structure building has the advantages of safety, high efficiency, green, environmental protection and reusability, especially with good seismic resistance, fast construction and installation speed, high construction accuracy, flexible layout and high utilization rate. The application of steel structure reflects the scientific and technological development of a country's construction science and technology, material technology and building technology.