The reconstruction was based on one photograph, several old drawings, and the original structural materials, with the aid of computer analysis.

With advancing technology, use of high strength structural materials becomes a necessity.

It is also notable for its first use of plastic as a structural material.

Its shape depended upon structural materials that were found or brought with them.

Cast iron was not yet a structural material, or capable of being worked at this scale.

The Courthouse exhibits an early use of iron as a structural material in a federal building.

Forms have been made using nearly every common structural material including air pressure supported fabric.

They certainly possessed better structural materials than had existed in his time.

Any normal structural material would be torn apart by its spin.

The middle of the tweentieth century saw concrete used as a structural material.