SAP & OpenSees

[moshtagh]

hi every body
i have an problem
i analyzed an 3D space structure in SAP and OpenSees. all of the properties are equal in both
but the answers of analyse are different, the axialforce of member in OpenSees are lower than SAP.
and when i wrote the below code the both answer are equal:

# FINITE ELEMENT ANALYSIS MODEL
integrator LoadControl 1.362
test NormDispIncr 1 2000 0
algorithm KrylovNewton
numberer RCM
constraints Plain
system ProfileSPD
analysis Static
analyze 1

is it correct i wrote integrator LoadControl 1.362 ?????
1.362?
is it corect?
when i wrote integrator LoadControl 1 , the answer of SAP and OpenSees becom different, but when i wrote integrator LoadControl 1.362 , all the answer become equal
why this happend?
is it correct i wrote integrator LoadControl 1.362?
please help me
thanks alot

[vesna]

The load factor increment (λ) of load control integrator can be any number. If you do the analysis in one step (as in your post) the load you apply on your structure will be (reference load)*(λ), where reference load was defined within the load pattern command.