Nonlinear Material Behavior of the Bridge Components - Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges - page 93

study the behavior of through-deck-welded shear connectors. The headed
stud used in the tests was 13 65 mm and the profiled steel sheeting had
a depth of 38 mm. Kim et al. [ 2.58 , 2.59 ] discussed concrete pull-out failure
surface area and strength. The major failure modes found in the tests
were concrete pull-out failure and local concrete crushing around the foot
of the stud.

2.6.6 Main Investigations on Shear Connection in Composite
Beams with Prestressed Hollow Core Concrete Slabs
Moy and Tayler [ 2.60 ] carried out 27 push-off tests to evaluate the shear
strength of headed studs in solid prestressed concrete planks. The prestressed
planks were used as permanent shutters for the in situ concrete. The planks
had a depth of 65 mm and a bearing width of 50 mm on the steel beam
flange. A 533 mm depth by 210 mm width by 92 kg steel beam was used
with two studs welded on each flange. The diameter of the headed stud
used was 19 mm, and different lengths ranging from 95 to 120 mm were
used. The rest of the 150 mm depth of the slab was made with in situ con-
crete. Figure 2.21 shows the details of Moy and Tayler [ 2.60 ] push-off test
specimen. A typical load-slip curve of the 19 mm stud was obtained, and the

P

300

150

300

600

150

50

50

150 533 150

450

Steel beam section:
533 210 92 kg UB

Cast in situ concrete

Preca st concrete plank

65

Figure 2.21 Details of push-off test specimen conducted by Moy and Tayler [ 2.60 ] .