Thank you for your answer!
It is not a big problem to found segmental bridge for
light rail traffic:
JFC system,
Waterfront Transit Line Bridge is Ohio,
Dublin Light Rail System over the Taney Road
......................................
Segmental solution for regular railroad
(RU from BS5400 , for example)is very rare.
I found several examples (old and new projects),
but I did not find any code specific requirements
or restrictions for this method use
for heavy rail traffic.
The bridges that I found:
Nahal Zin - Israel (the first 70's)
Kakogawa Bridge- Japan (1969-1970)
Beijin-Shanghai High Speed Line- China (under construction?)
Rhone River Viaduct -France (High speed TGV traffic-under construction?)
Avignon bridge - France (High speed TGV traffic-1996-1999)
Le pont Rail -Route de Neuvy-Sur-Loire (1981)
Ventabren Viaduct - France (TGV , 1994-1998)
I am searching for additional examples ,codes, papers and
pictures and drawing.
If you are interesting about this, I can
put links I will found here.