Civil Engineering MCQAE Level Civil Engineering
A steel column base plate transfers the column load to the concrete pedestal. The base plate area is determined by:
Steel StructuresBase PlateMEDIUM
Choose the correct answer
A
Bearing strength of concrete only
B
Column cross-sectional area
C
Required area = P / (bearing strength of concrete)
D
Weld capacity
Correct Answer
C. Required area = P / (bearing strength of concrete)
Why is this the answer?
Required base plate area A = P / f_bearing, where P = factored column load and f_bearing = 0.45 x f_ck (IS 456 bearing stress) or as per IS 800. The plate is then designed for the upward pressure on the projection beyond the column footprint.
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