Steel Structure Metal Shed Steel Building Prefabricated Steel Structure Warehouse
Structural steel is a strong steel product that is rolled, extruded, or fabricated to form specific shapes with given dimensions which can be used directly in construction or other applications. It is employed extensively in building structures, bridges, industrial plants, and infrastructure because of its strength, durability, weldability, and capacity to bear heavy loads.
Structural steel can be manufactured in various shapes, sizes, and standards depending on project requirements. Some are produced using hot-rolled or cold-rolled processes, while others are welded from flat or shaped steel plates. The most common structural steel profiles include I-beams, high-speed steel, u channel steel, angle steel, and carbon steel plates.
International Standards for steel Frame Structure
GB 50017 (China): A Chinese national standard covering design loads, details, durability, and safety criteria.
AISC (US): The most widely recognized guide in North America, covering load criteria, structural design, and connections.
BS 5950 (UK): Focuses on balancing safety, economy, and structural efficiency.
EN 1993 – Eurocode 3 (EU): The European framework for the coordinated design of steel structures.
| Standard | National Standard | American Standard | European Standard | |
| Introduction | With national standards (GB) as the core, supplemented by industry norms, it emphasizes the full process control of design, construction and acceptance | Focusing on ASTM material standards and AISC design specifications, we focus on combining market independent certification with industry standards. | EN series of standards (European standards) | |
| Core Standards | Design standards | GB 50017-2017 | AISC（AISC 360-16） | EN 1993 |
| Material standards | GB/T 700-2006、GB/T 1591-2018 | ASTM Internationa | EN 10025 series developed by CEN | |
| Construction and acceptance standards | GB 50205-2020 | AWS D1.1 | EN 1011 series | |
| Industry-specific standards | For example, JT/T 722-2023 in the field of bridges, JGJ 99-2015 in the field of construction | |||
| Required Certificates | Steel structure engineering professional contracting qualification (special grade, first grade, second grade, third grade) | AISC Certification | CE Mark, German DIN Certification, UK CARES Certification |
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| China Classification Society (CCS) certification, steel structure manufacturing enterprise qualification certification | FRA certification | |||
| Test reports on material mechanical properties, weld quality, etc. issued by a third-party testing agency | ASME | |||
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Specifications:
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Main Steel Frame
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H-section steel beam and columns, painted or galvanized, galvanized C-section or steel pipe, etc.
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Secondary Frame
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hot dip galvanized C-purlin, steel bracing, tie bar, knee brace, edge cover, etc.
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Roof Panel
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EPS sandwich panel, glass fiber sandwich panel, Rockwool sandwich panel, and PU sandwich
panel or steel plate, etc. |
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Wall Panel
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sandwich panel or corrugated steel sheet, etc.
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Tie Rod
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circular steel tube
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Brace
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round bar
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Knee Brace
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angle steel
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Drawings & Quotation:
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(1) Customized design is welcomed.
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(2) In order to give you an exact quotation and drawings, please let us know the length, width, eave height, and local weather. We
will quote for you promptly. |
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Steel Structure Sections
Structural steel profiles can be sourced from the world standards or can be made as customized and proprietary profiles if the engineering and project requirements demand so. Various steel sections have been developed to offer the best strength, stability and performance in specific applications of building and construction.
1. I-Beams (I Sections)
I-beams are one of the most widely used structural steel profiles. They feature an “I” shaped cross-section and are designed to provide high load-bearing capacity with efficient material usage.
UK: Universal Beams (UB) and Universal Columns (UC)
Europe: IPE, HE, HL, HD, and other European standard sections
USA: Wide Flange (WF or W-shaped) beams and H-shaped sections
Applications: Building frames, bridges, industrial structures, and heavy-duty support systems
2. Z-Beams
Z-beams feature a Z-shaped cross-section with reverse half-flanges, offering excellent strength-to-weight performance. They are commonly used in applications requiring lightweight yet strong structural components.
Applications: Steel framing, roof systems, and industrial buildings
3. Hollow Structural Sections (HSS)
HSS, also known as Structural Hollow Sections (SHS), are closed steel profiles with hollow interiors. They are available in several shapes:
Square Hollow Sections (SHS)
Rectangular Hollow Sections (RHS)
Circular Hollow Sections (CHS)
Oval Hollow Sections
Applications: Steel structures, columns, trusses, architectural frameworks, and bridges
4. Steel Angles (L Sections)
Steel angles have an L-shaped cross-section and are widely used for reinforcement and framing applications. They can be produced as equal angles or unequal angles.
Applications: Towers, supports, brackets, frames, and general fabrication
5. Structural Channels (C Sections)
Channel steel features a C-shaped cross-section, providing good bending resistance and easy installation.
Applications: Building frames, machinery supports, vehicle structures, and steel fabrication projects
6. T-Beams (T Sections)
T-beams have a T-shaped cross-section, consisting of a flange and a vertical web. They are commonly used where one-directional load support is required.
Applications: Floor systems, bridges, and reinforced structural components
7. Structural Bars
Steel bars are solid sections with rectangular cross-sections but are smaller in width compared with steel plates.
Applications: Fabrication, reinforcement components, machinery parts, and structural connections
8. Steel Rods
Steel rods are solid round or square sections with a length significantly greater than their width.
Applications: Tie rods, reinforcement, supports, and mechanical applications
9. Steel Plates
Steel plates are flat steel products with a thickness generally greater than 6 mm (1/4 inch). They are available in various grades and sizes to meet structural requirements.
Applications: Shipbuilding, bridges, pressure vessels, heavy equipment, and steel structures
Steel structures refer to buildings or other infrastructure constructed primarily of steel. Due to their high strength, light weight, fast construction speed, and good seismic performance, steel structures have been widely used in many fields. Their applications include:
Civil Engineering
Industrial Plants: Plants used in mechanical engineering, metallurgy, chemical industry, etc.
Warehousing: Large-scale integrated logistics warehouses, cold storage facilities, etc.
High-Rise and Super High-Rise Buildings: The main structural frame of high-rise buildings.
Public Facilities: Stadiums, exhibition halls, theaters, airport terminals, etc.
Residential Buildings: Residential buildings using steel frame structures.
Transportation Infrastructure
Bridge Engineering: Railway bridges, highway bridges, and long-span bridges.
Rail Transit: High-speed railway stations, subway stations, and rail transit vehicles.
Specialized Engineering and Equipment
Marine Engineering: Offshore oil drilling (jacket structures, platform decks, etc.)
Shipbuilding
Heavy lifting and construction machinery; cranes and specialized engineering vehicles
Bulk Equipment and Containers: Machinery frames and industrial storage tanks
Household Special Services
Temporary Construction: Disaster relief housing, temporary exhibition halls, prefabricated buildings
Support for glass domes in large shopping malls
Energy Saving: Wind turbine towers (made of rolled high-strength steel plates) and solar panel structures
Cutting Process
1. Preliminary Preparation
Material Inspection
Drawing Interpretation
2. Choosing the Appropriate Cutting Method
Flame Cutting: Suitable for thicker mild steel and low-alloy steel, ideal for rough machining.
Water Jet Cutting: Suitable for a variety of materials, especially heat-sensitive steel or high-precision, special-shaped parts.
Welding Processing
Welding is a basic building block in production of steel structures. With the application of heat, pressure, or both, with or without filler materials, atomic bonding is established between the steel surfaces being joined resulting in a strong, cohesive structural joint. Welding is a key joining technique for steel members, and therefore has a direct impact on the strength, stability, durability and safety of steel structures. It is widely used in buildings, bridges, industrial machinery, ship and infrastructure.
Welding Procedure and Quality Control
Before welding begins, the welding process is strictly defined according to construction drawings, welding procedure specifications (WPS), and welding procedure qualification reports (PQR). The required parameters include:
Weld Joint Type: Determine the connection method, such as butt joints, fillet joints, T-joints, corner joints, and lap joints.
Groove Design and Dimensions: Specify groove angle, root gap, root face, and preparation method to ensure proper weld penetration and strength.
Weld Size Requirements: Define weld throat thickness, leg size, weld length, and reinforcement requirements according to structural design standards.
Welding Position: Identify welding positions, including flat, horizontal, vertical, and overhead welding, to ensure suitable welding techniques.
Weld Quality Grade: Establish acceptance criteria and inspection requirements based on project specifications and international standards.
Punching Processing
Punching process is one of the important processing methods in the fabrication of steel structure that producing holes on structural steel members mechanically or physically as per engineering drawing or design. These holes are principally used for connection of steel members, arrangement of bolts, piping and fitting of accessories and these holes play vital role in accurate assembly and joint performance.
Punching Process and Requirements
Before punching or drilling, the hole specifications are determined based on structural design drawings, fabrication drawings, and project requirements, including:
Hole Location: Define the exact hole position using coordinate dimensions to ensure accurate alignment during assembly.
Number of Holes: Specify the required quantity and arrangement of holes according to connection design.
Hole Diameter: Determine hole sizes based on bolt specifications, connection types, and engineering standards.
Accuracy Requirements:
Standard bolt holes: tolerance typically within ±1 mm
High-strength bolt holes: higher precision requirements, typically within ±0.5 mm
Hole Type: Select the appropriate hole shape, including:
A number of surface treatment techniques such as painting, galvanizing are used for steel structure buildings to enhance its performance on corrosion protection, rust prevention, durability and esthetic.
Galvanizing
Provides excellent rust resistance and long-term protection, suitable for outdoor and harsh environments.
Powder Coating
Offers a wide range of colors, strong weather resistance, and an attractive surface finish.
Epoxy Coating
Provides excellent corrosion and chemical resistance, ideal for challenging environments.
Epoxy Zinc-Rich Coating
Uses high zinc content to provide effective electrochemical corrosion protection.
Painting
A flexible and cost-effective solution with various colors and finishes for different project needs.
Black Oil Coating
An economical option for basic rust protection during storage, transportation, or short-term use.
Our team of senior structural engineers and technical experts possesses extensive project experience and advanced design concepts, and is familiar with steel structure mechanics and industry standards.
We utilize professional design software, including AutoCAD and Tekla Structures, to develop a complete visualization design system that accurately reflects component dimensions, node configurations, and spatial layouts, from 3D models to 2D engineering drawings.
Our services cover the entire project development process, from early conceptual design to detailed construction drawings, from complex node analysis to overall structural verification.
We meticulously control every detail, achieving millimeter-level precision to ensure technical rigor and excellent construction feasibility.
We are always customer-centric. Through comprehensive comparison of solutions and mechanical behavior simulation, we develop cost-effective design solutions for various applications (industrial plants, commercial complexes, bridges, and boardwalks, etc.). While ensuring structural safety, we reduce material usage and simplify construction processes. We provide comprehensive after-sales services, from drawing delivery to on-site technical guidance. Our professionalism means you can trust us; we will deliver every steel structure project on time. We have developed into a trusted one-stop design partner.
Proper packing and transportation are essential to protect steel structure components from damage, corrosion, and deformation during handling and delivery.
Packing Methods
Steel structure components are bundled and fixed with steel straps for safe loading and unloading.
Surfaces are protected with waterproof materials to prevent moisture and rust.
Components are marked with labels, drawings, and identification numbers for easy assembly.
Customized packing solutions are available according to project requirements and shipping conditions.
Transportation Methods
Sea Freight: The most common method for international delivery of large steel structures, using containers or bulk vessels.
Road Transport: Suitable for local delivery and transportation of prefabricated steel components.
Professional packing and transportation management ensure steel structure products arrive safely, maintain quality, and support efficient on-site installation.
Transportation: Express (Sample Delivery), Air, Rail, Land, Train, Sea shipping (FCL or LCL or Bulk)
From the supply to installment, our expert team are with you all the way for a smooth and efficient project. We provide technical support, installation assistant and field service to optimize construction plans and ensure safety, stability and quality of steel structures.
In after-sales, we offer maintenance tips, product care instructions and technical consultation according to the feature of the steel structure. If there are any while getting use of problem , our after-service will be promptly replied and professional solutions will be suggested to guarantee long-term structural performance and customer satisfaction.
Q: What types of steel structures do you provide?
A: We provide various steel structure solutions, including steel warehouses, workshops, industrial buildings, steel frames, bridges, and customized steel structures based on project requirements.
Q: Can steel structures be customized?
A: Yes. We provide customized solutions based on your drawings, dimensions, load requirements, design specifications, and project conditions.
Q: How do you ensure steel structure quality?
A: We conduct strict quality control throughout fabrication, including material inspection, welding inspection, dimensional checks, surface treatment inspection, and final quality testing.
Q: How are steel structures packed and delivered?
A: Steel components are securely bundled, labeled, and protected with waterproof materials before shipment. Transportation options include sea freight according to project needs.
Q: Do you provide installation and after-sales support?
A: Yes. We provide technical guidance, installation support, maintenance recommendations, and professional after-sales service throughout the project lifecycle.
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