What is the modular ratio to be used in the analysis of RC beam using working stress method if the grade of concrete is M 20?
Questions › Category: Civil Engineering › What is the modular ratio to be used in the analysis of RC beam using working stress method if the grade of concrete is M 20?
VideRime Staff asked 3 years ago
As per IS: 456-2000 modular ratio is
given by
M = 280/3σ cbc
For M20 concrete
σ cbc =7N/mm 2
∴ m=280/3×7
= 13.3