In article ,
says...

Concrete and steel bonded together consitute a 'composite'
structure. Steel girders used for bridges have steel
studs welded on top flanges of the girders. The concrete
deck is poured and bonds to the girders with the help
of the numerous studs. The Portland cement in the
concrete is the glue which makes the bonding possible.
So, in a way, the concrete and the steel are 'glued'
to each other. Calculating the strength of the structure
takes the 'composite' structure into account.

I wouldn't call this a composite structure, because the materials are
basically separate with a definite interface (the studs). I do think
of concrete reinforced with iron bar and/or or iron grid as a
composite.

--
!Replace DECIMAL.POINT in my e-mail address with just a . to reply
directly

Eric Greenwell
Richland, WA (USA)