For channel section, program calculates the Ct value using the section dimensions. For ISMC150 section, the Ct value is calculated as
((75*75*9/2)*2+(132*5.7*5.7/2))/2130 = 24.774mm.
The Ct value provided in the section database (copied from IS808:1989) is not used and the calculated Ct value is used to compute the section modulus values.
((75*75*9/2)*2+(132*5.7*5.7/2))/2130 = 24.774mm.
The Ct value provided in the section database (copied from IS808:1989) is not used and the calculated Ct value is used to compute the section modulus values.