how to do bijlaard analysis , when pipe loads is transferring to drum. because in my case i am not able to decrease my loads.

Your looking at WRC-107, perhaps WRC-297, and even perhaps FEA. All are non-trival and need to be performed by experienced analysts.

While CAESAR II does have modules for WRC (107/297) anlysis, I recommend you find someone who has done this before to assist you.