Książki

Steel-concrete composite construction has been
gaining popularity over the last century thanks to
its ability to well marry the advantages of
structural components made of concrete and steel.
This work studies the behaviour of composite beams
with partial shear interaction by means of the direct
stiffness approach.
An analytical model is presented to describe the
behaviour of m-layered composite beams. For the
particular case of two layers closed form solutions
are derived to predict the composite behaviour in the
linear-elastic range and accounting for time effects.
Based on this model, a direct stiffness approach is
formulated considering linear-elastic material
properties. An extension in the nonlinear range is
proposed and validated against experimental data
available in the literature.
The applicability of this approach is further
extended to account for the time-dependent behaviour
of the concrete. In this case only one discretisation
is necessary, i.e. in the time domain, instead of the
two, i.e. one discretisation in the time domain and
one along the beam axis, required by modelling
techniques available in the literature.

Partial interaction analysis of composite beams: A direct stiffness approach