LEAP Superstructure - Nominal Capacity used to Calculate Shear Rating Factors

Question

Hello, 
 I am not matching LEAP's operating rating factors for shear (screenshots below) - 0.99 (HL93 Inventory), 1.46 (HL93 Operating), and 0.78 (FL120). I am using the appropriate live load factor for each case. The difference seems to be in the Shear Capacity value used by LEAP as the dead and live loads are consistent between Strength I and Strength II. Does LEAP print the values somewhere that are used in the rating equation? The capacity I use is calculated using the (phi*Vn)/Vu from Print --> Vertical/Horizontal Shear for the governing beam. I did independently verify the moment rating factors and they matched exactly; it is shear I am having trouble with.

Please let me know if you would like the models or the calculation files. 
 
 Thanks

Alex O [Bentley] · Accepted Answer

Sathivika, As I did mention to you in my initial response: " The shear report does not report Av-provided, and shear capacity for this method" We are talking about the FDOT alternative of counting stirrups across failure plane. So you cannot use capacity from shear design report for computing the rating factor when FDOT alternative is selected.

Alex O [Bentley] · Answer

Sathvika, 
 Please make sure you are not using the option of considering the shear reinforcement across the failure plane (see first screen shot below). The shear report does not report Av-provided, and shear capacity for this method. Fort the traditional method of computing Av-provided at location, follow hand calculations for Tutorial 6 (see second screen shot below).

Alex O [Bentley] · Answer

Sathvika, function of POI location and stirrup placement you may miss one stirrup even if the stirrup spacing is constant across failure plane. The method works well if you clearly can intercept more stirrups placed closer than at a given POI.