Our portal frame structures are manufactured according to project drawings and engineering requirements. Each project can be customized according to the building size, local environmental conditions, required loads, operational use, and customer specifications.

From structural detailing to fabrication, surface protection, packing, and shipment, we provide an integrated steel structure supply service for overseas construction projects.

Portal Frame Structural Configuration

A typical portal frame building consists of primary and secondary structural members.

Primary Structure

The primary steel frame generally includes:

• Steel columns

• Roof rafters

• Ridge connections

• Haunch sections

• End frames

• Base plates

• Connection plates

These members form the main load-bearing system of the building.

Secondary Structure

Secondary components may include:

• Roof purlins

• Wall girts

• Eave struts

• Tie rods

• Roof bracing

• Wall bracing

• Sag rods

• Door framing

• Window framing

Together, these componen

Typical Product Parameters

Structural Design Options

Our portal frame structure can be adapted to different project requirements.

Single-Span Portal Frame

Suitable for smaller or medium-width buildings requiring an open internal area.

Multi-Span Portal Frame

Suitable for larger industrial projects requiring greater total building width.

Crane-Supported Portal Frame

Crane beams and supporting structural members can be incorporated according to crane capacity and operating requirements.

Mezzanine Portal Frame Building

A mezzanine structure can be integrated to create additional office, storage, or working space.

Building with Canopy

Steel canopies can be added above loading areas, entrances, or external operational zones.

FAQ

What is the difference between a portal frame and a conventional steel frame?

A portal frame uses rigid connections between columns and rafters to form the primary structural system. This configuration is particularly efficient for low-rise, large-span industrial buildings.

What types of buildings are best suited for portal frame structures?

Portal frames are commonly used for warehouses, workshops, factories, logistics buildings, agricultural buildings, maintenance facilities, and other large-span structures.

Can you manufacture according to our structural drawings?

Yes. We can manufacture steel components according to approved structural and fabrication drawings.

Can the building width and height be customized?

Yes. Width, length, height, roof pitch, bay spacing, and structural configuration are all project-specific.

Can a portal frame support an overhead crane?

Yes. Crane beams and supporting members can be incorporated into the structural design when the crane specifications are provided.

Can the portal frame be used for a multi-span building?

Yes. Multi-span layouts are commonly used for large factories, logistics facilities, and extensive warehouse projects.