Document Type: FAQ
Product(s): LEAP RCPIER/Substructure
Version(s): All
Original Author: Bentley Technical Support Group - VM
ANSWER:
Impact factor, IM = 33% which is applied to Truck only is generally applied to the analysis results (moments and forces) of the load combinations and envelopes.
For Example :
DC = 100 kips
DW = 50 kips
Design Truck = 25 kips
Design Lane = 15 kips
Total Load = Fy = DC + DW + DT + DL
Total Load = Fy = 100 + 50 + (25x1.33) +15 = 198.25 kips .