Portal Frame Steel Building Structure

Key Components of a Portal Frame Structure

  
 Types of Portal Frames

A. By Structural Design

 B. By Connection Type

Rigid Joint (Moment-Resisting) – Welded/bolted for maximum strength.

Pinned Base (Simple Connection) – Easier to install, less load capacity.

Advantages of Portal Frames

Long Spans (20–60m+) – No internal columns, maximizing usable space.
Fast Construction – Pre-engineered components for quick assembly.
Cost-Effective – Less material than traditional steel frames.
Customizable – Adaptable for cranes, mezzanines, and insulation.

Common Applications

Industrial – Factories, warehouses, power plants.
Commercial – Supermarkets, showrooms, gyms.
Agricultural – Barns, grain stores, machinery sheds.
Specialized – Aircraft hangars, fire stations.