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Converting Steel Structure AISC Design to GB Codes

Views: 0     Author: Site Editor     Publish Time: 2026-06-12      Origin: Site

For steel fabricators, international projects aren't about translation or unit conversion. They demand a full system transformation—turning the client's design code, material specs, marking logic, approval workflow, QC plan, and delivery rules into a production system your shop can execute, trace, and ship. Without that bridge, even a perfect 3D model ends as chaos on the cutting table.

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The Difference Between GB and AISC is Not Just About Different Standard Names

In Chinese steel structure projects, common component annotations on drawings include:

Common Annotations in Chinese Projects

Common Annotations in Chinese Projects

Meaning

GZ

Steel Column

GL

Steel Beam

ZC

Bracket

SC

Horizontal Bracket

LT

Purlin

QL

Wall Beam

DCL

Crane Beam

JD / JB

Node Plate

In AISC system projects, common representations might be:

Common AISC Expressions

Meaning

C1 / C2

Column

B1 / B2

Beam

G1 / G2

Girder

BR1 / BR2

Brace

W

Wide Flange

HSS

Hollow Structural Section

L

Angle

PL

Plate

BP

Base Plate

Gusset Plate

Node board

On the surface, this appears to be a difference between Chinese and English labeling.

However, from an engineering execution perspective, these are two different project management languages.

In GB projects, factories are more accustomed to identifying components by their function; while in AISC projects, component numbers are often directly linked to design models, fabrication details, installation drawings, BOMs, packing lists, on-site installation sequences, and quality traceability.

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So, when handling international projects, member marking is never just about giving parts a name. It is the foundation of the entire delivery chain,from design approval to shop floor cutting, from quality tracking to final shipment.

In GB projects, components are coded by function; in AISC projects, every number ties directly to design models, fabrication, installation, BOMs, packing, site sequence, and quality traceability—so if you treat international member marking as random naming, you'll end up with mismatched beams, rejected drawings, and steel that doesn't fit on site. Treat your coding like your welding.

For more information needed or any inquiry,please feel free to contact Yumisteel team.

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