This paper investigates an open web truss joist (OWTJ) made of laminated veneer lumber (LVL) Paraserianthes falctaria as a prefabricated timber-concrete composite floor system. The four-point
bending test showed that structural performances of the OWTJ, conventional
composite floor (CCF), and prefabricated composite floor (PCF) were similar.
Although composite action was not developed as no lateral deformation was
observed at the shear connectors, installing
a concrete slab above the OWTJ can slightly increase the ductility factor of the composite floor. Furthermore, a finite element model was
developed, and the model proved to be suitable for simulating the structural
performance of the composite floor.
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