Metal Buildings

Metal Buildings for Industrial, Commercial and Agricultural

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Metal Buildings Solution

Metal Buildings design from Havit Steel provides an optimized solution for your project. Our professional team is ready to serve any buildings. We can provide you with the most efficient design and construction plan, which is fast and smooth to complete construction for your steel building projects.

Metal Buildings
steel structure buildings
Steel Structure Building
Industrial

Steel Structure Building

As a new type of building system, steel structure building breaks through the boundaries of real estate, construction and metallurgical…

prefab metal building
Prefab Metal Building
Industrial

Prefab Metal Building

Prefab metal buildings are steel structures customized to meet customers' specific architectural and structural needs. All components are manufactured in…

Steel Aircraft Hangar Building
Steel Aircraft Hangar Building
Commercial

Steel Aircraft Hangar Building

Havit Steel manufactures customized Steel Aircraft Hangar Building, which protects and maintains small and large aircraft. Our metal structure building…

Steel Structure Frame Building
Steel Structure Frame Building
Commercial

Steel Structure Frame Building

The Steel Structure Frame Building is composed of steel beams and steel columns. The steel frame can withstand the vertical…

metal structure garage kits
Metal Structure Garage Kits
Commercial

Metal Structure Garage Kits

A garage is an essential part of your property. Nowadays, almost every family has a car, so it is crucial…

steel structure livestock buildings
Steel Structure Livestock Buildings
Agricultural

Steel Structure Livestock Buildings

Many farmers choose to use steel structures to build livestock houses, mainly because steel structure livestock buildings have many advantages…

Metal structure warehouse buildings
Metal Structure Warehouse Buildings
Industrial

Metal Structure Warehouse Buildings

Metal Structure Warehouse Buildings can better meet the needs of cargo storage and logistics turnover because steel structure buildings have…

Steel manufacturing Building
Steel Manufacturing Building
Industrial

Steel Manufacturing Building

Havit Steel designs steel manufacturing building that are tailored to meet the needs of manufacturing companies. Every manufacturing company needs…

Steel Industrial Building
Industrial

Steel Industrial Building

Steel Industrial Building designed from Havit Steel is an efficient solution for industrial facilities, whether you need to build manufacturing…

Steel Auto Shop Building
Steel Auto Shop Building
Commercial

Steel Auto Shop Building

Steel auto shop building is the ideal solution for customers who want to build an automotive workshop that can provide…

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Steel Church Building
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Steel Church Building

Steel Church Building design and fabricated by the prefab steel structure, it will provide congregations with a durable and more…

Steel Cold Storage Building
Steel Cold Storage Building
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Steel Cold Storage Building

The steel cold storage building is made of steel structure and used as cold storage inside. If you plan to…

Metal Buildings Specification

The metal buildings uses steel to form a load-bearing structure. Generally, beams, columns, trusses, and other components made of section steel and steel plates constitute a load-bearing structure, which together with roof, wall, and floor, form a building.

Compared with traditional concrete buildings, metal structure buildings use steel plates or section steel instead of reinforced concrete, higher strength, and better seismic resistance. And because the components can be manufactured in factories and installed on-site, the construction period is greatly reduced. Due to the reusability of steel, it can greatly reduce construction waste and become more environmentally friendly. Therefore, it is widely used in industrial buildings and civil buildings all over the world.

Advantage
1. Greatly save construction time. Construction is not affected by the season
2. Increase the use area of buildings, reduce construction waste and environmental pollution
3. Building materials can be reused, stimulating the development of other new building materials industries
4. Good seismic performance, easy to transform, flexible and convenient in use, bringing comfort and so on
5. High strength, lightweight, high safety and wealth of components, and lower building cost

Disadvantages:
1. Heat-resistant and non-fire-resistant, fire-resistant coatings are required
2. It is susceptible to corrosion, and the surface needs to be coated with anti-corrosion coatings to reduce or avoid corrosion and increase durability

Metal Buildings

Metal Building Kits

Steel Building Kits design from Havit Steel with advantage of Fast and Simple Construction, Wide Range Of Uses, Reasonable Cost, lower price than concrete building structure.

Metal Buildings Cladding

Metal Cladding System

Metal cladding system includes wall and roof cladding, skylight sheet, trim and flashing, gutter and downspout, insulation, which are essential components of metal building.

Metal Buildings

Steel Building Specs

Steel Building Specification provide the basic information about the Prefab Steel Building, which include Steel Warehouse, Industrial Workshop, Shed, and Garage Building.

We Are Here To Serve Any Type Of Metal Buildings

Please contact us. There’s a lot we can do for your steel building projects, small or large. Our team will provide you with the best quality construction solution

This article presents a detailed engineering case study of a 66x75m steel structure warehouse measuring 66 meters in width and 75 meters in length. Designed in accordance with the Technical Code for Light-weight Steel Structures (GB51022-2015), the project adopts a portal steel frame system to meet specific spatial and functional demands. The layout reflects a deliberate balance between structural efficiency and operational flexibility.

66X75m Steel Structure Warehouse Design

66X75m Steel Structure Warehouse Design Plan

The warehouse is divided into three spans: two side spans of 24 meters and a central span of 18 meters. This configuration accommodates internal vehicular access through the center aisle. The eaves height is 5.5 meters.

Structural Materials

  • Primary structure: Fabricated using Q355B high-strength steel
  • Secondary members: Constructed with Q235B steel
  • Roof composition:
    • Outer cladding: 0.5 mm corrugated steel sheet
    • Thermal insulation: 75 mm glass wool
    • Interior ceiling: 0.4 mm steel liner

This layered system ensures both thermal performance and structural durability.

Span Arrangement and Column Grid

The warehouse spans 66 meters in width, arranged asymmetrically to accommodate functional zoning. While symmetrical frames are generally more economical, the client’s operational requirements necessitated a central 18-meter corridor for internal circulation.

The building length of 75 meters is segmented into ten equal bays at 7.5 meters each, creating a regular column grid that facilitates consistent load distribution and simplifies purlin installation.

Roof Beam Splicing Strategy

Efficient splicing of roof beams plays a crucial role in balancing transportability, structural integrity, and construction cost. Key design principles include:

  • Splice location: Positioned near points of contraflexure (typically 1/4 to 1/6 of the span) to minimize internal stress concentrations.
  • Transport limitations: Beam segments are kept under 12.5 meters to ensure ease of transportation.
  • Minimizing splice count: Fewer joints reduce fabrication time and limit the need for end plates and high-strength bolts.
  • Avoiding critical intersections: Splices are placed away from intersections with bracing members, such as wind columns or roof ties, to prevent interference.

Following this rationale, the 66-meter roof beam is divided into seven segments. Splice nodes A and D are situated at column intersections, while the ridge (Node F) remains continuous due to concentrated bending moments and the presence of lateral ties.

Roof beam splicing node

Load Analysis

Dead Load

The calculated dead load includes all permanent components of the roofing system:

ComponentApprox. Weight (kg/m²)
Corrugated steel sheet5.0
Glass wool insulation (75mm)1.05
Ceiling liner panel3.5
Purlins and accessories~4.0
Bracing systems~2.0
Total~15.0 kg/m² (~0.15 kN/m²)

Load per frame: 0.15 kN/m² × 7.5m = 1.125 kN/m

Dead Load of Steel Warehouse

Live Load

According to GB standards:

  • Basic roof live load = 0.3 kN/m²
  • Suspended equipment allowance = 0.1 kN/m²
  • Total live load: 0.4 kN/m² × 7.5m = 3.0 kN/m
Live load of steel warehouse building

Wind Load

The design wind load is taken as 0.4 kN/m². Due to the building’s considerable width (66m), which exceeds the 60m threshold, additional bracing is introduced on interior gridlines (axes B and C) to comply with code stipulations and enhance lateral stability.

The structural layout of the 66X75m Steel Structure Warehouse

The structural layout adheres to conventional portal frame principles. Given the absence of overhead cranes, column bases are designed as hinged supports. The central columns act as swing supports, facilitating horizontal load distribution without compromising vertical stability.

Bracing systems are incorporated at both ends and intermediate sections of the frame to maintain structural coherence under lateral forces. Their placement reflects both spatial considerations and codified support intervals.

structure layout of steel warehouse

Foundation and Stability Considerations

66x75m steel structure warehouse without cranes or multi-story mezzanines, column footings may be safely hinged, reducing complexity and cost. However, for facilities with dynamic loads or elevated operational platforms, rigid connections and reinforced foundations are required to ensure overall stability.

Calculation model

Design Compliance and Code Reference

All structural elements and load calculations strictly follow the provisions of:

These standards provide the regulatory framework for ensuring the structure’s safety, serviceability, and long-term durability.

Conclusion

The design of the 66x75m steel structure warehouse showcases a thoughtful integration of client-specific spatial requirements with structural engineering principles. By optimizing the portal frame layout, carefully selecting splice points, and adhering to national codes, the project achieves both functional clarity and structural resilience. The outcome is a warehouse design that balances practicality, economy, and performance.

Frequently Asked Questions (FAQs)

Why is the 66x75m steel structure warehouse span designed as 24m + 18m + 24m?

The central 18m bay is intentionally reserved for vehicle traffic, necessitating a narrower span to function as a thoroughfare. This configuration optimizes internal logistics.

What are the advantages of using Q355B and Q235B steel?

Q355B offers superior strength and is ideal for primary load-bearing components, while Q235B is cost-effective and well-suited for secondary framing and bracing.

How is the dead load determined in this structure?

It includes roofing layers, insulation, purlins, bracing, and fixed equipment—amounting to roughly 15 kg/m² or 0.15 kN/m².

What precautions are taken for wind resistance?

Additional bracing is included on interior columns due to the wide span, and wind loads are calculated according to GB codes to ensure lateral stability.

Can this 66x75m steel structure warehouse support cranes in the future?

Not in its current form. To support cranes, the frame and foundation would need to be upgraded to accommodate dynamic loads and horizontal forces.

Why are splice joints placed near contraflexure points?

To reduce internal stresses and material demand by leveraging the natural bending characteristics of the frame.

Are hinged column bases structurally sound?

Yes. For single-story warehouses without overhead loads, hinged bases are standard practice and fully compliant with design codes.

Which design standards apply to this project?

The structure is designed under GB50017-2017 for steel design and GB51022-2015 for light portal frame systems.

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