Civil Engineering MCQAE Level Civil Engineering
As per IS 456, for a short column with axial load P and bending moment M (or eccentricity e), the load capacity is determined using:
RCCEccentrically Loaded ColumnMEDIUM
Choose the correct answer
A
Only the direct compressive stress
B
Interaction diagram (P-M interaction curve)
C
Simple bending theory alone
D
Only the eccentricity formula
Correct Answer
B. Interaction diagram (P-M interaction curve)
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For columns under combined axial load and bending, IS 456 uses a P-M interaction diagram (load-moment capacity envelope). A combination (P, M) lying within the envelope is safe; outside means failure.
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