Nonlinear Material Behavior of the Bridge Components - Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges - page 95

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Figure 2.23 Details of push-off test specimen used by Shim et al. [ 2.62 ] .

was derived, and the load-slip curves of the studs were plotted for the 12
push-off tests.
The behavior of shear connections in a composite beamwith a full-depth
prestressed slab was investigated by Shim et al. [ 2.62 ]. Eighteen push-off tests
were performed with variations of the stud shank diameter and the compres-
sive strength of the mortar. Figure 2.23 shows the push-off test specimen
used by the authors to evaluate the shear stud properties in a composite beam
with a full-depth precast slab. Different stud diameters (13, 16, 19, and
22 mm) were used with a stud height of 150 mm. The push-off tests were
similar to BS 5400 [ 2.38 ] , but it had shear pockets for stud shear connectors
and a bedding mortar layer 20 mm thick between the precast slab and the
steel beam. The load-slip curves of the stud were obtained, and the relation-
ship between the shear stud capacity and the stud diameters was plotted.
From the experimental work, the authors observed that the deformations
of the stud in a full-depth precast slab were greater than its deformations
in a cast in place slab. The static strengths of the shear connections agree