Equivalent Frame Method on slab

[jenofstructures]

hello fellow eng-tips forumers

I am studying the the Equivalent frame method on the analyis (design) of a two way slab system

on the PCA, (ACI) I found a table on Appendix 20A showing various knf and Cnf
my question is, how did they derived on this kinds of values?

can you give me some reference regarding how they come up in the values reflected on the table? (stiffnes factor, carry over factors and many more)

thank you in advance

Poems are made by fools like me, but only God can make a tree. engineers creates wonderful buildings, but only God can creates wonderful minds

 

[JAE]

You might have to refer to the ACI commentary and the references they provide in the ACI 318 document.

Or contact ACI via their website for the back-up development of that method.

 

[WillisV]

See outline of historical development here - you can then track down the specific papers if you wish:

http://bit.ly/dJ48Fs