Author/Authors :
Abbu Muthanna A نويسنده Building and Construction Engineering Techniques, Engineering Technical College , AL-Ameri Riyadh نويسنده School of Engineering, Deakin University
Abstract :
A theoretical study has been carried out on
sandwich beams strengthened mechanically by two external
steel plates attached to their tension and compression
sides with so-called ‘‘shear connectors ‘‘. This study is
based on the individual behaviour of each component of
the composite sandwich section (i.e. reinforced concrete
beam and upper steel plate and lower steel plate). The
approach has been developed to simulate the behaviour of
such beams, and is based on neglecting the separation
between the three layers; i.e., the deflections are equal in
each element through the same section. The differential
equations reached were solved analytically. Deflection was
calculated by using the approach for several beams, tested
in two series, and close agreements were obtained with the
experimental values. Furthermore, the interaction efficiency
between the three elements in a composite sandwich
beam has been considered thoroughly, from which the
effect of some parameters, such as plate length upon the
behaviour of such beams, were studied.
