I am designing a tee barred but I do not find the dimensions of bicelado and chamflan to design the Tee and then proceed with the details of the welded bars, I would be very grateful to help me with some catalog or datasheet
I wouldn't bother - just say barred tee and then look at the design provided.
~you really want something like this
There are also versions where you weld the bars into a short section of the branch and then weld that onto the tee because the welding of the bars is then a lot easier.
Welding of the bars - really flat strips - is quite difficult to do and QA/testing is notoriously difficult.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.