Authors
Abstract
This research includes a theoretical investigation about the behaviour of
simply supported composite slim floor beams with partial interaction. For the
purpose of analysis, the slim floor slab system is simplified to a multi-layered
composite beam. The slim floor beam is embedded in concrete. Therefore, the
layers of the slim floor are connected together by natural shear bond
generated between the steel and concrete and distributed uniformly along the
interface without using shear connectors. Linear behaviour with one degree of
freedom of the slim floor (slip only) without separation is studied according to
Johnson and May approach using different material properties and different
types of loading.
Equilibrium and compatibility are satisfied for the forces and displacements
at an assumed element to arrive at two differential equations of second-order
in terms of slip and axial force. The equations are solved numerically using
the finite difference method. A computer program is written in Visual Basic
language to solve the problem.
The current model is applied to three typical simply supported slim floor
beams tested experimentally by “Corus Construction Center”. The model
showed close prediction with the observed results.
Keywords
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