Steel Structure
Why Choose Us
Production Capacity
Producing 60,000 tons of high-quality steelwork components for buildings, 2,000,000 square meters of rock wool/glass wool metal curtain wall sandwich panels,1,000,000 square meters of polyurethane cold storage panels,3,000,000 square meters of steel truss decks, and about 10,000,000 square meters of all types of profiled steel sheets and components for prefabricated buildings each year.
Production Market
Duowei has established itself as the world's leading integrated service provider of metal enclosure systems for buildings. Duowei has established modern lean manufacturing bases in Tianjin, Nantong, Shenyang, Guangdong and Sichuan. Duowei has also set up overseas offices in major markets such as Southeast Asia, Africa, and South America, serving more than 10,000 clients, with its products reaching markets in over 90 countries and regions across the globe.
Finished product inspection
Duowei has its own independent testing center with national accreditation.Wind resistance, heat transfer coefficient, bending capacity, metal low temperature impact, metal chemical composition analysis, oxygen index, bonding strength and salt spray test more than 40 test capabilities, to ensure that qualified products delivered to customers.
Quality Assurance
DUOWEI have AISC certification, ISO9001 certification and CE certification, we provide steel structure products and services that meet the standards in more than 90 countries and regions worldwide.
Advantages of Steel Structure
Durability and Strength
Steel is renowned for its strength and durability. It can withstand extreme weather conditions like storms, heavy snow, and even earthquakes, making it a reliable choice for any construction project.
Flexibility and Adaptability
One of the most significant advantages of steel structures is their flexibility. They can be easily modified, extended, or adapted to suit changing needs or functions.
Cost-Effective
Despite the upfront costs, steel structures can be more economical in the long run. They require less maintenance and are more durable compared to traditional construction materials.
Speed of Construction
Steel structures can be pre-fabricated, which significantly speeds up the construction process. This is particularly beneficial in reducing labor costs and in projects with tight deadlines.
Types of Steel Structure
Structural Steel Pipe Racks
Steel structures are widely used in heavy equipment frame support systems. This section takes structural steel pipe racks as an example to demonstrate how our steel structures have earned deep trust from clients and become extensively utilized in heavy equipment frame systems.
Prefab Metal Gym Buildings Gymnasium Steel Structure
Most of the stadiums are made of steel structure. Duowei is qualified in material production, design and construction. Duowei has been deeply engaged in the construction of stadiums for many years, and its products are sold to more than 90 countries and regions.
Hangar Steel Structure
Since the hangar needs to accommodate large aircraft, the hangar steel structure must achieve a large-span column-free space to ensure the aircraft's entry, exit, and maintenance operations.
Steel Frame Farm Buildings Farm Steel Structure
Steel frame farm buildings farm steel structure are new trend in recent years, compared with the traditional farm structure, steel structure has the following advantages.
Industrial Steel Structure
DUOWEI have AISC certification, ISO9001 certification and CE certification, we provide steel structure products and services that meet the standards in more than 90 countries and regions worldwide. Our expert team has the design qualification of China steel structure Grade A, American standard steel structure and Australian standard steel structure.
Prefabricated Steel Warehouse
We manufacture high-quality steel beams, steel columns, H-beams, C/Z purlins, and box columns for prefabricated steel warehouse that meet European, American, and Australian standards. Duowei not only provides steel structure materials, but also has the qualification of steel structure design, production.
Specification
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Standard |
EN 1090, ASTM, GB, AS/NZS |
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Grade |
S235, S275, S355, ASTM A992,ASTM A36,Q235, Q355 etc... |
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Type |
Steel beams, steel columns, H section beams, Box column, C/Z section steel |
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Paint |
Epoxy paint, polyurethane paint, fluorocarbon paint etc.. |
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Drawing design |
SAP2000, PKPM, AutoCAD, 3D3S, Tekla etc.. |
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Certification |
CE Certification & AISC & CWB & ISO9001 & GOST certification |
Steel Structure Production Process
Prepair raw materials : Cut steel plate or use internation size H section steel and angle steel,round tube,round steel,square tube etc.;
Assembly and welding: Our welders will follow the drawings to assembe the steel members and weld them together as a entire beam/column/brace and so on; (Our quality inspector will check the steel pieces after finish welding,this is the first quality check)
Sand blast : After finish welding and polishiing,our sand blast effect can reach internation 2.5 high grade,very good for resist rust; (Secondary quality check)
Paint : Within 2 hours after sand blast,all the steel members should be paint. Client can choose any color and any brand of paint. (The third quality check)
Inspect the goods by client : After we finish a part of fabrication work,we will invite clients to check the goods before we pack the steel frame.
Packing and loading : If clients require us to load the goods by close containers,we will pack the steel structure members one by one on the steel skid and tie the whole steel package well. (The fourth quality check )
The Basic Components of Steel Structure
Main rigid frame: Composed of columns and beams;If there is a crane, a crane girder is also included.
A. Common materials: Q235, Q355;
B. Common cross-sectional forms of beams and columns: H-shaped steel, trusses (beams are mostly used), lattice columns;
C. Common structural forms: Portal rigid frame, frame structure;
Support system: Including tie rods, horizontal supports, inter-column supports, and corner supports.
A. Tie rods are usually used: Steel pipes, rectangular pipes;H-beam, channel steel, C-beam, angle iron and so on can also be used;
B. The inter-column support is usually used: Round steel, steel pipe, angle iron;H-beam, channel steel, I-beam, etc. can also be used;
C. Angle braces are usually used: Angle iron;
Enclosure system: Including purlins, purlins rods, roof panels, wall panels, doors, windows, lighting panels, and gas floors.
A. Purlin: Mainly used, C-shaped steel and Z-shaped steel are cold-formed with hot-drawn steel plate and hot-rolled galvanized steel plate.
B. Wall and roof color plates: Mainly using high-strength, cold-rolled color steel plates, galvanized or aluminum-zinc color steel plates, stainless steel plates, aluminum alloy plates, and titanium alloy plates.Commonly used in China is galvanized or aluminum-zinc color steel plate.
Packaging and Delivery
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Packaging Details |
Special steel pallets that may be fully adapted to marine containers and provide optimal space utilization are packed inside the industrial steel construction. The fundamental idea behind component bundling is that big components should encircle smaller ones to stop component scattering. In order to increase friction and prevent stiff contact between the steel construction parts, they should be cushioned with wooden squares or rubber blocks. To avoid scattering, reinforce with fasteners after packaging. |
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Delivery time |
Generally, it will take 10 to 20 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order. |
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Payment term |
T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance. 100% Trade assurance |
FAQ
As one of the most professional steel structure manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy high-grade steel structure from our factory.
steel structure, steel frame farm buildings