Civil Engineering MCQAE Level Civil Engineering
As per IS 456:2000, the effective span of a simply supported beam of clear span l_n with bearing width at each end = b is taken as:
RCCEffective Span Simply SupportedMEDIUM
Choose the correct answer
A
Clear span l_n
B
l_n + b (center of bearing at one end to face of other)
C
Minimum of (l_n + d) and (l_n + b)
D
l_n + 2b
Correct Answer
C. Minimum of (l_n + d) and (l_n + b)
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IS 456 Cl. 22.2(a): Effective span = minimum of (clear span + effective depth) and (center-to-center of supports). This accounts for cases where bearing width may exceed the effective depth.
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