Why are tie plates provided is laced columns ?

1.	Why are tie plates provided is laced columns ?
A.	To check the buckling of column as whole
B.	To check the buckling of the lacing flats
C.	To check the buckling of the component columns
D.	To check the distortion of the end cross sections
Answer» D. To check the distortion of the end cross sections

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Why are tie plates provided is laced columns ?

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