Question: The beam section shown below is made of normal - weight concrete. Do the following: A . Calculate the cracking moment using the gross properties

The beam section shown below is made of normal-weight concrete. Do the following:
A. Calculate the cracking moment using the gross properties of the section
B. Calculate the nominal moment capacity (Mn)
C. Calculate the factored moment capacity (Mn)
D. Check the ACl318 code requirement for minimum reinforcement
Assume fc'=3,000,fy=60ksi,Es=29,000ksi, Modulus of rupture: fr=7.5*fc'2(in psi)
The beam section shown below is made of normal -

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