Steel frame

part · 1885 · Electric age

A load-bearing frame of steel beams.

What it is made of

• Rivet — has part. Early frames were riveted.
• I-beam — has part. I-beams.

Principles and materials it uses

• Steel — is made of. Steel.

Where it is used

• Skyscraper — is part of. A steel frame.

Things built in a similar way

• Gothic cathedral — works like. A skeleton system: the frame carries the load, freeing the walls for windows.

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