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which of the elements are used in making beams in building and bridges


Sagot :

Steel is commonly used in the bridge superstructure for armoring expansion joints, beams, bearings, floor beams, and more.

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Answer:

IRON

Explanation:

Iron was used typically in beams and trusses that were built before 1900. Steel replaced iron because it has more tensile strength than iron and is less brittle. There are almost no uses for iron in today’s bridge designs.