Question on "Width of all Compressive Struts" of "Hammer STM"

Hi, Dear all,

In the "Hammer STM" dialogue, "Width of all Compressive Struts" is a required input. Could you please let me know what exactly it is? Please have a look at the attached picture first (from AASHTO LRFD 2014).

Question 1: In picture a), there are two transverse dimensions for a strut. One is la*sin(theta), the other is 6da. Which one is the "width of compressive struts" in RC Pier?

Question 2: The angle and la are different from strut to strut. How can we decide the input value in the "Hammer STM" dialogue? since it is for "all Compressive Struts".

Thanks,

Dong