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Which of the following is not true?(a) function of lacing and battens is to hold main component members(b) tie plates are provided at top and bottom of column(c) lacing bars and batten plates are not designed as load carrying elements(d) lacing bars and batten plates are designed as load carrying elementsI got this question during an interview.I would like to ask this question from Elastic Buckling of Slender & Built-up Compression Members in section Design of Compression Members of Design of Steel Structures

Answer»

The correct option is (d) lacing bars and BATTEN PLATES are designed as load carrying elements

For explanation I would say: Lacing bars and batten plates are not designed as load carrying elements. Their function is to hold MAIN component members of built up column in relative position and equalize stress DISTRIBUTION in them. At ends and at intermediate points where it is necessary to interrupt the lacings, open sides are connected with TIE plates. Tie plates are also provided at top and bottom of column.



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