what is a portal frame structure and how does it work-0
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What Is a Portal Frame Structure and How Does It Work?

April 03, 2026

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A portal frame structure is a rigid frame consisting of columns and rafters connected by moment-resisting joints.

How It Works:

  • Transfers loads directly to the foundation
  • Resists bending moments at joints
  • Provides large column-free spaces

Applications:


prefabricated steel structure   (34).JPG