# Decisive case in ELLA

I am loading a bridge with 6 lanes with ELLA. In the simple code below, each “CASE” is a possible loading configuration for the Tandem System and the envelope is succesfully stored under LCs 900100.

``````SAVE LCB 900100 TYPE GR_T TITL 'TANDEM'

LOOP#Case_i #Num_Combinations

CASE 1+#Case_i GRP GR0

POSL 'AXE.1' TRAI #LC_Lane_1(#Case_i)
POSL 'AXE.2' TRAI #LC_Lane_2(#Case_i)
POSL 'AXE.3' TRAI #LC_Lane_3(#Case_i)
POSL 'AXE.4' TRAI #LC_Lane_4(#Case_i)
POSL 'AXE.5' TRAI #LC_Lane_4(#Case_i)
POSL 'AXE.6' TRAI #LC_Lane_4(#Case_i)

ENDLOOP
``````

I have watched the following youtube tutorial where it is clearly explained how to find the loads that generate, for example, the maximum bending moment My for a given element, axis and case.

Load Copy from ELLA #SOFiSTiK #SOFiSTiKTutorial #Tutorial #ELLA #Loadcopy

However, how can I know the decisive case that generates the maximum bending moment My for a given element and axis? Basically, I want to know which loads generate the maximum bending moment in a specific element, and I need the decisive case to generate that.

Hi Andrew,

you must generate several load cases from each ELLA-case, calculate them with ASE and check the results to realize which is the relevant one.

Best regards,
Jost