Modular Ratio of Steel and Concrete

Modular ratio reinforced concrete In this post i will complete explaining you Modular Ratio Of Steel and Concrete with formula .A lot of people don't know about Modular Ratio of Steel and Concrete formula and a lot of people sharing wrong formula .I search this formula in google many time but every time  but always i found it in wrong solution .But Here you can get right formula to solve you question with this formula related with concrete strength.

Modular Ratio of Steel and Concrete

The modulus of elasticity of steel and concrete in R.C.C is called Modular Ratio of Steel and Concrete .The ratio of stress to strain in a material is known as modulus of Elasticity of the material. It is mathematical expressed as

                     

   
Modulus of Elasticity =          Stress  
                                                  Strain

                                                                 E =     f     

                                                                             e

The values of modulus of Elasticity in R.C.C are different. The Modulus of Elasticity of steel (Es) is the ratio of the maximum stress (fs) and strain (e) produced in it , i.e. .,

                                                    Es    = fc

                                                               e

Steel and concrete unite in R.C.C to withstand the external forces. Therefore, the value of strain produced in them is same .In this case

                                        E =   fs       =  fc   
                                                Es           Ec

And    

                                           fc = fs *  Ec

                                                           Es 

                                                =  fs / Es

                                                            Ec

                                     =   fs  , (where  m= Es/Ec )

                                          m

or

                                        fc  =   fs  

                                                  m

this shown that the capacity of concrete sticking with steel is equal to fs /m .This is assumed only in the method of elastic. Theory of design. Modular ratio is not used in the Load Factor Method of design

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