Has anyone started working with the AASHTO 2005 LRFD Interim Revisions? Section 5.7.3.4 has changed in that the Z parameter is no longer used for crack control in concrete. There is now a gamma factor that controls the spacing of reinforcing.
I'm using a gamma factor of 1.00 for Class 1...
I am curious to know others' thoughts on the design of bridge approach slabs...
I have been looking through some materials and there are a variety of techniques used to determine the reinforcing in the slab. Some examples have treated the approach slab as a simple span from the backwall to the...