A 16 mm thick plate measuring 650 mm 420 mm is used as a base plate for an ISHB 300 column subjected to a factored axial compressive load of 2000 kN. As per IS: 456-2000, the minimum grade of concrete that should be used below the base plate for safely carrying the load is

A 16 mm thick plate measuring 650 mm 420 mm is used as a base plate

1.	A 16 mm thick plate measuring 650 mm 420 mm is used as a base plate for an ISHB 300 column subjected to a factored axial compressive load of 2000 kN. As per IS: 456-2000, the minimum grade of concrete that should be used below the base plate for safely carrying the load is
A.	M15
B.	M20
C.	M30
D.	M40
Answer» C. M30

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A 16 mm thick plate measuring 650 mm 420 mm is used as a base plate for an ISHB 300 column subjected to a factored axial compressive load of 2000 kN. As per IS: 456-2000, the minimum grade of concrete that should be used below the base plate for safely carrying the load is

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