portal frame

Maximize Space, Minimize Construction Time.
The ClearSpan Portal Frame System is a high-strength, pre-engineered structural solution designed for creating wide, column-free interiors in industrial, commercial, and agricultural buildings. Fabricated from robust structural-grade aluminum alloy or stainless steel, this system combines exceptional load-bearing capacity with the corrosion resistance needed for demanding environments.

The door-type scaffold, also known as the portal scaffold or portal scaffolding, is a standardized steel pipe scaffolding system with a main frame shaped like a "door", which is widely used in construction projects. ‌

1. Basic composition and principle:

The door-type scaffold consists of a basic unit with the core components of a door frame, cross braces, connecting rods, hook-type scaffold boards (or horizontal frames), and locking arms. ‌

 By adding auxiliary components such as horizontal reinforcement rods, diagonal braces, and bottom horizontal tubes, and rigidly connecting them to the main structure of the building through wall-linking elements, a stable three-level support structure is formed. ‌

 Its base is usually designed to be adjustable to correct horizontal deviations. ‌

2. Main features and advantages:

Efficient and Convenient: Adopting standardized and modular design, it is easy to assemble and disassemble, and convenient to move. Compared to traditional scaffolding, its assembly and disassembly efficiency can be improved by about 40%. ‌

Safe and reliable: The structure is stable and has good load-bearing performance. Its ultimate bearing capacity can reach 6.5kN/m², and overall stability is ensured through wall-linking elements. ‌

Versatile Functionality: It can be used not only for erecting internal and external construction scaffolding (row scaffolding), but also commonly serves as a support system for floor and beam formwork (full scaffolding), as well as an operation platform for equipment installation, temporary stands, and other activities. Therefore, it is also known as "multi-functional scaffolding".

Economical: Standardized components are easy to manage, have a high reuse rate, and can effectively reduce construction costs.