We are using a seismic decoupling criteria of 25:1, where if the branch pipe to run pipe moment of inertia ratio is 25:1, we seismically decouple the branch from the run in the run pipe analysis. However, the branch pipe analysis apparently needs the seismic spectra input specifically for the run/branch interface. Is there any piping analysis software that can provide the response at the run/branch interface? We use AutoPIPE.