| Customization: | Available |
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| After-sales Service: | Installation Work |
| Connection Form: | Bolt Connection |
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Resource integration and delivery capability:
Supply chain advantage: Relying on Shandong iron and steel industry cluster, we establish strategic cooperation with raw material suppliers and logistics enterprises to achieve rapid inventory and cost optimization, and shorten the delivery cycle by 10-15 days compared with the industry average.
EPC service capability:
Provide integrated design, procurement and construction services, equipped with a professional installation team and project management system to ensure efficient landing of complex projects.
| Application | Characteristic |
| Steel structure workshop High rise steel structure building Steel warehouse Large span steel frame Steel bridge Airport hanger Exhibition hall Gym shed Office building Poultry house Multi-storey building Storage shed |
High strength Light dead load Good plasticity and toughness Easy fabrication High accuracy Save 65% of construction time Large span Space flexible Reduce construction waste and noise 98% steel components can be recycled, Environmentally friendly |
1. Material Parameters
Steel Grades
Common grades: Q235, Q345, Q390, Q420 (Chinese standards); ASTM A36, A572 (U.S. standards); S235, S355 (European standards).
Strength grades: Tensile strength ≥375-550 MPa, yield strength ≥235-420 MPa (varies by grade).
Section Steel Types
Hot-rolled H-sections, square/rectangular tubes, circular tubes, I-beams, box columns.
Cold-formed thin-walled sections (for secondary components).
Auxiliary Materials
High-strength bolts: Grade 8.8, 10.9 .
Welding materials: Electrodes/wires compatible with base metal .
Fireproof coatings: Intumescent (1-3 mm thickness) or cementitious (10-40 mm thickness).
Columns (Vertical Load-Bearing Members)
Cross-sectional dimensions: H-sections range from H200×200×8×12 to H500×500×20×30 (mm).
Box columns: 400×400×16 to 800×800×30 ,wall thickness 16-40 mm.
Slenderness ratio control: λ ≤ 80 ,stricter for seismic design.
Beams (Horizontal Load-Bearing Members)
Cross-sectional types: H-sections, I-beams .
Span: 6-12 m .
Depth-to-span ratio: 1/15-1/25 .
Floor Systems
Composite deck slabs: Profiled steel sheet (0.8-1.5 mm) + concrete (100-150 mm).
Steel bar truss deck slabs: Span 3-6 m, suitable for large spaces.
Bracing Systems
Types: Concentric braces (X/V-shaped), eccentric braces (preferred for seismic resistance).
Sections: Angle steel , H-sections , or circular tubes.
Beam-Column Joints
Rigid connections: Fully welded or bolted-welded hybrid (flange welded, web bolted).
Hinged connections: Web bolted only.
Seismic joints: Follow "strong joint, weak component" principle (e.g., stiffener plates).
Column Bases
Embedded base: Depth ≥1.5× column section height in concrete foundation.
Encased base: Encasing concrete height ≥2× column section height.
Bolted Connections
Friction-type high-strength bolts: Preload-controlled .
Bolt spacing: ≥3× bolt diameter; edge distance ≥1.5× diameter.
Load Parameters
Seismic fortification intensity: 6-9 degrees .
Wind load: Basic wind pressure 0.3-0.7 kN/m² .
Live load: 2.0-5.0 kN/m² .
Structural Performance Requirements
Inter-story drift limit: 1/250 , 1/50 .
Natural vibration period: Generally ≤0.1N (N = number of stories).
Corrosion & Fire Protection
Anti-corrosion: Hot-dip galvanizing or epoxy zinc-rich primer .
Fire resistance: 1-3 hours .
Fabrication Tolerance
Component length: ±2 mm/6 m.
Bolt hole spacing: ±1.5 mm.
Installation Requirements
Verticality deviation: ≤H/1000 and ≤25 mm (total height).
Weld quality: Grade I (full penetration) or Grade II (partial penetration).
Building Types: Offices, hotels, apartments, commercial complexes.
Typical Height: 6-40 stories (20-150 m).
Economic Spans: 6-12 m (main beams), 3-6 m (secondary beams).
We offer One stop service from design, manufacture, deliver to installation and after-service.
If you have drawings, welcome to share drawings with us, quoation will be done based your drawings. Our excellent design team will design the steel structure workshop warehouse for you. If you give the following information, we will give you an satisfactory drawing.
1. Location (where will be built?) which country? which city?
2. Size: Length * width * Eve height _______ mm * _______ mm * _______ mm
3. wind load (maximum. Wind speed) _____ kn/m2, _____ km/h, _____ m/s
4. snow load (maximum Snow height) _____ kn/m2, _____ mm, temperature range?
5. anti earthquake _____ level
6. brick wall needed or not If yes, 1.2m high or 1.5m high? or other?
7. thermal insulation If yes, EPS, fiberglass wool, rockwool, PU sandwich panels will be suggested; If not, the metal steel sheets will be ok. The cost of the latter will be much lower than that of the former.
8. Door quantity&size _____ units, _____ (width) mm * _____ (height) mm
9. window quantity&size _____ units, _____ (width) mm * _____ (height) mm
10. crane needed or not If yes, _____ units, max. Lifting weight____tons; Max. Lifting height _____m
Qingdao Chengchuan Construction Engineering Co., Ltd. is a wholly-owned subsidiary of Qingdao Xinguangzheng Steel Structure Co., Ltd. Relying on the strong team and resources of the parent company, we are committed to providing customers with one-stop construction solutions. Our services cover consulting, design, production, transportation, construction and after-sales service. The professional overseas construction team provides overseas guidance and construction services for your project.
To better serve the global market, the company has obtained CE certification (EN1090 certificate), international general steel structure high-level certificate and China's overseas contracting engineering business qualification certificate. Before the country officially proposed the "Belt and Road" development strategy, it has begun to cooperate with countries along the "Belt and Road" and related companies, and actively explored the international development path for the global market. At present, products and construction services have been exported to more than 120 countries around the world, including Asia, Africa, North and South America, Oceania, Europe, etc., and joint ventures have been established in India and Ethiopia, forming all-round strategic cooperation with customers in many countries such as the Philippines and Algeria.
The company's core competitiveness is derived from its long-term and unremitting pursuit of technological breakthroughs. It now has more than 100 senior technical talents of various types and has established cooperative relationships with many universities and research institutions. With the help of internal and external intellectual resources and relying on steel structures, it continues to innovate in new products, new technologies, new models, and new business formats, and continuously achieves new breakthroughs in the "steel structure whole house system.
Service scope:
1. Project consulting: Provide professional consulting services according to customer needs and formulate the best solutions.
2. Design services: Use advanced design software and technology to provide efficient and accurate design services.
3. Manufacturing: Rely on the production base of the parent company to provide high-quality steel structure products.
4. Logistics and transportation: A complete logistics system ensures that the products arrive safely and on time.
5. Construction: A professional construction team ensures that the project is completed on time and with quality.
6. After-sales service: A complete after-sales service system solves customers' worries.
Q1. How to get quotes.
Q2: Can I have a visit to your factory before the order?
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