SERM 9th Edition Appendix 2.A

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thedaywa1ker

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I understand how to use the table with the design moment factor to get values for the tension reinforcement index.  When I look at table 2.1 where we are given various factors and values for typical beam strengths, I am seeing that the values from the table don't match the given tension reinforcement index.

For example for the 3000psi row, Ku/f'c is 615/3000 = 0.205, which per appendix 2.A should give a tension reinforcement index of 0.1623.  Table 2.1 shows a reinforcement index of 0.271.  Am I misinterpreting something?  Am I not supposed to be able to match these values up?  

I'm sure I'm missing something obvious...

 
Thank you for making this mistake, I made it as well but wasn't smart enough to figure it out. 😂

 
Lol well as you can see in the timestamp, it took 2 days to figure it out, so I don't know about being smart. Glad I could help.

 

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