What is a pre-engineered steel building?
Pre-Engineered Buildings is also known as a pre-engineered house or a pre-engineered steel frame house is a type of house built from 3 interconnected components, including:
+ Main components: column, rafter, bracing …
+ Additional components: C or Z purlins, top struts, wall beams …
+ Roofing and wall panels: roofing, corrugated iron …
MODEL OF PRE_ENGINEERED STEEL BUILDING
The steel structure of the factory model is designed and constructed by QSB Steel according to American technology and standards.
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A pre-engineered prefabricated steel building must be created through 3 phases: design, structural fabrication and rebuilding of the project.
All structures of pre-engineered steel buildings are pre-manufactured, so the erection takes place very quickly. The works that often use this type of house can be mentioned as: warehouse, factory, supermarket, showroom, high-rise building, commercial building …
See details: Cấu tạo nhà thép tiền chế,
See details: 8 FAMOUS OF STEEL FRAME
- Clear Span – House without columns between 2 roofs: maximum span of 100m. The most economical design span is 10m-30m
- Single Slot – House without columns between 1 roof: maximum span of 50m. The most economical design span <15m
- Multi-span “1” – Single-column house between 2 roofs: maximum span of 120m. The most economical design span is 26m-50m
- Multi-span “2” – 2-column house between 2 roofs: maximum span 180m. The most economical design span is 36m-72m
- Roof System Released Joint – Roof system on top of columnar joints: maximum span 50m. The most economical design span <20m
- Roof System Fixed Joint – Column top roof system linked to the house: maximum span 80m. The most economical design span <30m
- Multi-gable – Multi-span house with 1 middle column: maximum span 160m. The most economical design span is 30m-60m
- Curved Rafter – House with curved roof trusses without columns: maximum span of 100m. The most economical design span <30m
Classification of pre-engineered steel building
Basically prefabricated building include 4 main types:
+ Residential: This type of house is used for housing with diverse designs, low cost, fast construction process.
+ Industry: mainly built for warehouses, workshops, …
+ Trade: Including grocery stores, convenience stores, supermarkets, shopping malls, …
+ Military: used for military service such as barracks.
Advantages, disadvantages and applications of pre-engineered steel building
Advantages
+ Save extra materials.
+ Has good bearing capacity and lighter weight than other materials, so it will help reduce the load during construction.
+ The installation of steel-framed houses is quicker and simpler. Challenging all weather conditions.
+ Helping to take full advantage of the factory space, easy to scale up when needed.
+ Compared with traditional concrete houses, steel buildings are cheaper, saving time and money for businesses.
+ In addition, there is a high degree of uniformity in construction.
Disadvantages
Poor fire resistance
Although the steel material does not burn, at a temperature of 500 – 600 ° C, it will begin to change into a plastic form, losing its bearing capacity, making the structure easy to collapse. Even the fire resistance of steel structures is lower than that of plywood structures.
Easily corroded in hot and humid conditions
With hot and humid weather conditions like in Vietnam, especially in the areas where the environment is eroded, steel corrosion can cause damage to the building.
Relative durability
Although it addresses many of the limitations of traditional reinforced concrete buildings such as reducing costs, construction time and manpower, workload, but the durability of pre-engineered steel building is less solid than that of houses. concrete.
Maintenance costs are quite high
To ensure the durability of steel-framed houses, regular maintenance is required to increase rust resistance, fire resistance, but this cost is relatively high. This is also a major obstacle that limits the application of this type of housing in civil housing projects.
Fortunately, the above disadvantages have all been overcome thanks to today’s advanced technology. For easily corrosive steel frames, the solution is to increase the corrosion resistance of steel by plating cast iron and aluminum. This solution also contributes to reducing maintenance costs for pre-engineered steel building.
The fire resistance of steel will increase significantly when coated with refractory layers such as ceramic plate, fireproof paint, concrete. In addition, prefabricated steel-frame buildings should also be fully equipped with fire prevention and fighting equipment.
Application
– For manufacturing industry; it is suitable for projects that require fast construction time; but still ensure safety such as: Construction of factories; industrial area; factory; Factory or warehouse …
– For commercial projects: Building supermarkets; office; shopping mall; display area; restaurant or exhibition center …
– For public works: Construction of schools; hospital, convention center; sports stadium or museum …
– Some other projects can also apply pre-engineered steel frame houses such as: Farm; the gas station; container storage; waiting room…
QSB Steel – a pre-engineered steel building company
Over the years, QSB Steel has become a reputable brand in the field of pre-engineered steel buildings. QSB Steel has provided quality products; architectural solutions as well as optimal structures; Low cost works: Factories, warehouses, industrial factories that meet international standards.
Our engineers are trained; Specialized training offers the most cost-effective solutions for customers but ensures international regulatory standards.
QSB Steel is committed to being a professional, innovative and breakthrough contractor for your construction projects.