±5% of average

± 10% of average

± 15% of average

±20% of average

effective span of T-beam

distance between points of zero moments in the beam

distance between points of maximum moments in the beam

clear span of the T-beam

3.5 m

4 m

4.5 m

5 m

600 mm

750 mm

900 mm

more than 1 m

50 mm

75 mm

100 mm

120 mm