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Quality Assurance System
Before the company processes the products, the designers will first give instructions, and the special process department will issue targeted production processes to ensure the source of product quality control.
The company has established a special quality control department to supervise and inspect the production quality of components. During the component production process, the "three inspections" system combining self-inspection, handover inspection and special inspection is strictly implemented to prevent unqualified products from entering the next process and create quality projects for customers.
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The company has its own physical and chemical laboratory, which can conduct mechanical and chemical property tests on incoming materials to prevent unqualified products from entering the factory.
The company has passed the American standard verification.
The company can provide users with steel structure scheme design (preliminary design), construction drawing design, processing details, in-depth design and engineering technology consulting services. The designed projects cover ordinary light steel plants, heavy steel plants, tires, shipbuilding, logistics, textiles, super high-rise buildings and other industries and fields.
The company has Class B design qualification for steel structures and is currently applying for Class A design qualification for steel structures.
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The company currently has one first-class registered architect, four first-class registered structural engineers, more than 40 professional steel structure designers, and more than 12 detailed drawing designers and list makers. The company also has a special enclosure system research and development team to carry out secondary development and design of enclosure plate types, waterproof nodes, etc. Among the above technical personnel, there are 12 senior engineers and 21 engineers, and those with bachelor's degrees or above account for more than 85% of the total number. The company has introduced AutoCAD, PKPM, Xsteel, 3D3S and other software for structural design. Relying on the support of the group company's design department, and with Qingdao University, Qingdao University of Technology, Shandong Construction Engineering and other universities, the company has a great leading advantage in structural design.
Steel Structure Service Process: From Design Consultation to Project Delivery
Steel structure projects involve multiple stages, from initial planning to final delivery. Each step is crucial to ensuring a smooth execution and high-quality results. Below is the complete service process for steel structures:
  • Design Consultation
    At the initial stage, we conduct detailed discussions with the client to understand the project requirements, building functions, structural characteristics, and budget constraints. We provide professional design recommendations to ensure that the steel structure plan meets safety standards, engineering codes, and client expectations.
  • Conceptual & Structural Design
    Based on the client’s needs, we develop and optimize the structural design, using advanced software such as BIM modeling, SAP2000, Tekla, and STAAD.Pro. This ensures the steel structure’s stability, cost-effectiveness, and constructability. We also provide detailed drawings and 3D models for client review and approval.
  • Material Procurement
    Once the design is finalized, we procure high-quality steel materials (such as Q235, Q355, S355, etc.) according to project specifications. All materials comply with ISO, EN, ASTM, and other international standards, and undergo strict quality inspections to ensure compliance.
  • Fabrication & Pre-assembly
    In our modern manufacturing facility, we carry out precision cutting, welding, drilling, shot blasting, and surface treatment (such as hot-dip galvanizing and painting). We strictly follow the ISO 9001 quality management system to ensure that each component meets design requirements. For complex structures, we conduct pre-assembly tests in the factory to guarantee accuracy and efficiency during on-site installation.
  • Quality Inspection
    After fabrication, we perform rigorous non-destructive testing (UT, RT, MT), dimensional inspections, and weld quality checks to ensure all steel components meet international standards. A full inspection report is provided.
  • Logistics & Delivery
    We develop an efficient logistics and transportation plan, utilizing sea freight, land transport, or multimodal logistics to ensure that the steel components arrive safely and on time at the construction site, with protection against damage during transit.
  • On-site Installation
    Our professional construction team follows the installation schedule and safety standards, assembling steel columns, beams, bolted connections, and welding using tower cranes and crawler cranes. The entire installation process is closely monitored for accuracy.
  • Final Inspection & Acceptance
    Once installation is complete, we conduct a final quality inspection with the client and third-party organizations. This includes structural stability checks, corrosion protection tests, and load-bearing assessments to ensure that the steel structure meets design and safety requirements.
  • Project Handover & After-sales Service
    After passing all inspections, we officially hand over the project, providing detailed technical documentation, as-built drawings, and maintenance guidelines. Additionally, we offer long-term after-sales support, including technical consultation, structural maintenance, and component replacement, ensuring the building’s long-term stability.
 Technical support, after-sales guarantee and on-site inspection services in the steel structure industry
The steel structure industry not only provides high-quality products, but also provides customers with comprehensive technical support, perfect after-sales guarantee, and supports customers to visit factories and conduct on-site inspections of projects to ensure the smooth progress of cooperation.
Professional technical support (Technical Support)
 Scheme design support: 
Provide professional technical services such as structural optimization design, BIM modeling, load calculation, seismic analysis, etc. to ensure that the steel structure scheme is safe, efficient and economical.
 Construction technical guidance: 
Provide steel structure installation manuals, construction technical specifications, welding and bolt connection guidance to support the construction team to successfully complete the installation.
 Remote and on-site support: 
Engineer teams can be dispatched to the construction site for technical guidance, or remote video support can be provided to solve problems that may be encountered during the installation process.
 Quality inspection and testing: 
Support non-destructive testing (UT, RT, MT), coating thickness detection, welding strength testing, etc. to ensure that the steel structure meets international quality standards (ISO, EN, ASTM, etc.).
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Complete after-sales service
 Long-term quality assurance: 
Steel structure products usually provide 5-10 years of quality assurance, and key components such as anti-corrosion coatings and welding parts enjoy a longer warranty period.
 Maintenance and repair support:
 Provide regular structural inspections, coating maintenance, parts replacement and other services to ensure long-term and stable operation of the building.
 Spare parts supply and replacement: 
Provide standardized bolts, welding materials, coating repair materials and other wearing parts to ensure that customers can quickly replace and reduce maintenance costs.
 Emergency support: 
For emergencies (such as natural disasters, accidental damage), repair solutions can be quickly provided to ensure building safety.
Factory visit & site inspection
Third-party-testing-agency-certification
 
Third-party testing agency certification: 
Support customers to appoint third-party agencies (such as SGS, BV, TÜV) to conduct quality inspections to ensure that products meet contract requirements.​
Factory-visit
 
Factory visit:
Customers can make an appointment to visit the factory to understand the steel structure production process on site, including material processing, welding, painting, pre-assembly and other links, and communicate directly with the technical team.
Project-field-inspection
 
Project field inspection: 
Support customers to visit the site of completed or under-construction projects to understand the construction quality, durability and actual use of steel structure buildings.
Through comprehensive technical support, reliable after-sales service, and transparent production processes and project inspections, the steel structure industry provides customers with safe, stable and efficient construction solutions to ensure the smooth implementation of each project.

FAQ

  • Q What is steel structure?

    A
    Steel structure is a structure composed of steel materials and is one of the main types of building structures. Steel beams, columns, trusses, and other components mainly made of steel sections and plates, are usually connected by welds, bolts, or rivets between each component or part.

  • Q What are the advantages of steel structures?

    A
    High strength and light weight: Steel has high strength and elastic modulus, so the cross-section of steel structural components is small and the self weight is light.
    Good plasticity and toughness: Steel has good plasticity, and steel structures generally do not suddenly fracture or fail due to accidental or local overloading. Steel has good toughness, making steel structures more adaptable to vibration loads.
    High degree of industrialization: Steel structural components are easy to manufacture in factories and assemble on construction sites. Mechanized manufacturing of steel structural components in factories has high precision, high production efficiency, fast assembly speed on construction sites, and short construction period.
    Good sealing performance: The welded structure can achieve complete sealing, making high-pressure vessels, large oil tanks, pressure pipelines, etc. with good air and water tightness.
    Good seismic performance: Steel structures have good seismic performance due to their light weight, low seismic action, and good toughness of steel, which can effectively dissipate seismic energy.

  • Q What are the drawbacks of steel structures?

    A
    Poor corrosion resistance: Steel is prone to rusting in humid and corrosive environments, requiring regular maintenance and increasing maintenance costs.
    Poor fire resistance: Steel is heat-resistant but not fire-resistant. When the temperature exceeds 250 ℃, the steel material undergoes significant changes, not only gradually reducing its strength, but also causing blue brittleness and creep phenomena. When the temperature reaches 600 ℃, the steel enters a plastic state and cannot continue to bear.
    Relatively high cost: Compared with concrete structures, the cost of steel structures is relatively high.

  • Q What buildings are steel structures suitable for?

    A
    Large span structures, such as sports halls, exhibition halls, aircraft hangars, etc.
    High rise buildings: such as office buildings, hotels, residences, etc.
    Industrial buildings: such as heavy machinery buildings, power plant buildings, etc.
    Bridges: such as highway bridges, railway bridges, etc.
    Tower and mast structures, such as television towers, microwave towers, etc.

  • Q What are the connection methods for steel structures?

    A
    Welding connection: Welding connection is the most important connection method for steel structures, with the advantages of simple construction, saving steel, convenient processing, and easy automation operation.
    Bolt connection: Bolt connection is easy to install, especially suitable for installation and connection on construction sites, and also easy to disassemble, suitable for temporary connections that require installation and disassembly of structures.
    Rivet connection: Rivet connection has reliable force transmission, good plasticity and toughness, but its structure is complex, requires a large amount of steel, and is difficult to construct. It is now rarely used.

  • Q How to carry out anti-corrosion treatment on steel structures?

    A
    Coating anti-corrosion: Applying anti-corrosion coating on the surface of steel is the most commonly used anti-corrosion method.
    Hot dip galvanizing: immersing steel in molten zinc solution to form a layer of zinc iron alloy on its surface, which has good anti-corrosion properties.
    Cathodic protection: By applying an external current or sacrificing the anode, the surface of the steel becomes a cathode, thereby inhibiting its corrosion.

  • Q How to carry out fire prevention treatment for steel structures?

    A
    Spraying fireproof coating: Spraying fireproof coating on the surface of steel can improve the fire resistance limit of steel structures.
    Covering fireproof board: Covering fireproof board on the surface of steel can isolate the influence of flames and high temperature on the steel.
    Pouring concrete: Pouring concrete outside the steel structure can improve its fire resistance limit.

  • Q What is the cost of steel structure?

    A The cost of steel structures is influenced by various factors, such as steel prices, design complexity, construction difficulty, etc. Generally speaking, the cost of steel structures is higher than that of concrete structures, but their construction speed is faster, which can shorten the construction period and thus reduce the overall cost.

  • Q What is the development trend of steel structures?

    A
    The application of high-strength steel: High strength steel can reduce the cross-sectional size of components and decrease the amount of steel used, which is an important direction for the development of steel structures.
    The application of new connection technologies, such as high-strength bolt connections and welding robots, can improve construction efficiency and quality.
    The application of intelligent technology, such as BIM technology, Internet of Things technology, etc., can achieve full lifecycle management of steel structure design, manufacturing, installation, and operation and maintenance.

  • Q How to choose a steel structure company?

    A
    Qualification: Select enterprises with professional contracting qualifications for steel structures.
    Experience: Choose enterprises with rich construction experience.
    Performance: Choose companies with good performance.
    Reputation: Choose a reputable enterprise.
The company covers an area of ​​more than 200 acres, with a production plant of more than 70,000 square meters, and its production capacity ranks first in the same industry in the province.

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WhatsApp: +8617548964295
Tel: +86-532-87273788 
        +86-17548964295 
Address: Yunxi Road Jiaozhou Bay Industrial Park, Qingdao, Shandong, China.
 
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