Civil Engineering MCQAE Level Civil Engineering
For a two-way restrained slab (all edges fixed), the maximum positive moment at mid-span is computed using coefficients from IS 456 Table 26 as:
RCCTwo-way Slab SteelMEDIUM
Choose the correct answer
A
M_x = α_x × w × l_x²
B
M_x = w × l_x² / 8
C
M_x = α × w × (l_x × l_y)
D
M_x = w × l_x × l_y / 2
Correct Answer
A. M_x = α_x × w × l_x²
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IS 456 Cl. D-2: For two-way restrained slabs, short span moment M_x = α_x × w × l_x² and long span moment M_y = α_y × w × l_x², where α_x, α_y are IS 456 Table 26 coefficients depending on l_y/l_x ratio.
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