Seismosoft | Earthquake Engineering Solutions

Hi,
I have a question about the output reading in post-processor:
1. what is the different of V2(A) and V2(B)in post-processor 'element action effects - Frame Forces'.

Hi,
A and B indicate the edges of a given element.

See the SeismoStruct Help System -> Element Classes -> Inelastic Frame Elements. The figure at the bottom of the page should make it clear.