please suggest me how to check deflection of bottom chord of truss
The deflection check can be done only on a member-by member basis. It cannot be done for an entire truss system as a single object.
Thanks a lot for reply.it mean to say no need to check half length or full length of bottom chord of truss by defining DJ1 and DJ2 along DFF while it breaks in nos of piece due vertical and inclined member of trust.
One more question how to check member deflection value not node displacement