Dear fellows!
I have observed that some senior engineers have not been using stiffness modifiers in their designs. What is the concept behind i am not clear . As we design RC for strength, section is cracked and to cater for this cracked section, property modifiers are used as per
ACI 318-11 10.10.4 (stiffness requirement)
ACI 318-11 8.7 (stiffness requirement)
UBC97 1630.1.2 (modelling requirement)
so why whole section is considered in design. is there any other logic which i couldn't understand.
Regards