| dc.description.abstract | A composite floor system consisting of cold-formed steel (CFS) and
plywood could be an alternative to concrete floor systems. However, there
are still a few design calculations which include the influence of
connections for this floor system. This is due to the lack of research
regarding the behaviour of CFS-Plywood connections. Therefore, this
study presents an experimental investigation into the behaviour of the
connections that were used. Two different shear connection types, selfdrilling screw and adhesive epoxy were examined and compared.
Material testing was carried out in this study to obtain the mechanical
properties of the materials and single shear tests were conducted to
determine failure modes, load-displacement behaviour, ductility, slip
modulus, and shear modulus of both connection types. The experimental
results indicated that composite system which connected by self-drilling
screw has higher ductility than system with adhesive epoxy. Furthermore,
the slip modulus and shear modulus were employed in empirical analysis
to calculate the effective bending stiffness of the designed floor system.
The results showed that the 2,4 meters CFS-plywood floor system using
adhesive epoxy provided 63,4% increase in bending stiffness compared
to CFS joist's bending stiffness. This value significantly surpassed the
increase of bending stiffness provided by system using self-drilling screw,
which was 5,4%. Increasing bending stiffness of the composite floor
system results in reduced vertical deflection, so it could be more easily to
meet the design criteria. | en_US |
