Calculate the effective depth of a cantilever beam of span 2.5m, based on the provisions given on ‘effective depth ratios for spans up to 10m’ in IS 456 : 2000

Correct option is A

Clause 23.3 of in IS 456: 2000, the basic value of effective span to depth ratio for span upto 10 m for different support conditions specified are:
Type of beam Span/Depth
Cantilever = 7
Simply supported = 20
Continuous = 26
For spans > 10 m, a Modification factor of 10/(span in meter) is to be multiplied with basic values for simply supported and continuous beams.
Given ,
Length of span = 2.5m = 2500 mm
For cantilever beam span to depth ratio = 7
Then,
effective depth (d) = ��
�������� ���� ��ⅇ������ ���������� = 7
Then,
Effective depth (d) = L/ratio = 2500/7 = 357.14mm