47003.1 Calculation of combined cross-sectional coefficient
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This post was last edited by *aoshiwuhen on 2019-7-9 at 11:39. For section 47003.1, sub-section 6.4.4 regarding reinforcement design, how is the combined section modulus Zs calculated for the reinforcement and the flat cover plate? For example, in this design, if channel steel is used as the reinforcement member, how is the combined section modulus calculated for the combination of the channel steel and the flat cover? In other words, after I calculate the required section modulus Zx, how do I determine what size of channel steel I need to use as a reinforcement?
Since it’s not easy to figure this out on your own, you need to find a book on mechanics of materials and use the methods described in that book for calculating the flexural section modulus. Once you have determined the flexural section modulus, dividing it by the distance over which the moment acts gives you the section modulus coefficient.
I’ve found that many people haven’t studied Mechanics of Materials; go and take a look at it as soon as possible. It’s a fundamental subject – if you can’t even master this, things will get difficult