I AM GOING TO EXPLAIN MY PROBLEM:
CONSIDERING THAT WE HAVE A PIPE CALCULATED AND ERECTED, HAVING READY A FLANGE OR A CONNECTING POINT FOR A NEW PIPE CONNECTION.
WHICH DATA SHOULD BE GIVEN TO THE PERSON WHO IS GOING TO CALCULATE THE NEW PIPE TO ASSURE THAT THE SUPPORTS ALREADY ERECTED IN THE PREVIOUS PIPE ARE NOT CHANGED?
IT ALSO SHOULD BE ASSURED THAT THE LOADS IN THE EQUIPMENT ARE NOT MODIFIED.

I SHOULD UNDERLINE THAT THE CONNECTING POINT IS NOT A FIXED POINT BUT A FREE POINT WITH DESPLACEMENT.

THANK YOU SO MUCH FOR YOUR ANSWERS.