What are the applications of concrete fillled steel tube truss.?

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Mehdi Lima

it might be applicable for cases that buckling is an issue.

Debasish Mondal

Very popular in Arch bridges, railway truss bridges , roof structures, sports stadiums, multi storey frame buildings with excellent seismic resistance.

Steel tubes filled with concrete behaves as a composite member. The concrete in the tube improves the stability of the thin-walled steel tube in compression and delays its local buckling while steel tube confines the inside concrete resulting triaxial compression stress state in the concrete.

Salam Alobaidi

thanks mr Debasish for the great answer