Lesson 5
Lesson 5
Lesson 5
Solid one
way slabs L/20 L/24 L/28 L/10
Beams or
ribbed one L/16 L/18.5 L/21 L/8
way slabs
Values given shall be used directly for members with normal weight
concrete (Wc = 2,300 kg/cu.m.) and Grade 415 reinforcement. For
other conditions, the values shall be modified as follows.
a) For structural lightweight concrete having unit weight in the
range 1, 500 – 2,000 kg/cu.m., the values shall be multiplied by
( 1.65 – 0.0003 Wc) but not less than 1.09, where Wc is the unit
weight in kg/cu.m..
b) For fy other than 415, the values shall be multiplied by (0.40 +
fy/700)