What is pratt truss, Civil Engineering

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Q. What is Pratt truss?

Pratt truss is characterized by having its diagonal members (except the end diagonals) slanted down towards the middle of bridge span. Under such structural arrangement when subject to external loads tension is induced in diagonal members whereas vertical members tackle compressive forces. Henceforthlighter and thinner steel or iron can be used as materials for diagonal member's sothat a more efficient structure can be improved.

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