Crane Side Thrust Load Option
User can select one of the following 3 options to calculate crane side
thrust load.

Option 1    Hs =             0.2 (Lifted Load+ Trolley/Hoist Wt)

Option2     Hs = max of  0.2 (Lifted Load+ Trolley/Hoist Wt)
                                     0.1 (Lifted Load+ Entire Crane Wt)

Option3     Hs = max of 0.2 (Lifted Load+ Trolley/Hoist Wt)
                                    0.1 (Lifted Load+ Entire Crane Wt)
                                    0.4 Lifted Load

From Table 2.1 of CISC Guide for the Design of Crane-Supporting Steel
Structures 2nd Ed

If the crane is Pendant operated,   Option 2 is recommended.
If the crane is Cab operated,         Option 3 is recommended.
From CISC Guide for the Design of Crane-Supporting Steel Structures
2nd Ed Table 2.1