Recently, for the decreasing of work term and the convenience of construction work, the steel wire-integrated deck plate has been widely used in the construction sites. Most of all, owing to its good stiffness and economic consideration, the steel-wire-integrated deck plate system has become very popular in recent years. Upper bar, lower bar and lattice bar of the steel-wire-integarated deck plate work as upper chord, lower chord and diagonal chord of truss respectively. Lattice bar is easy to buckle and effective buckling length is increased when the thickness of lattice bar is small. Therefore, tests have been conducted on 15 specimens with several experiment variables to evaluate the structural safety of the proposed deck plate system during the construction step. The test results show that in case of the steel wire-integrated deck plate with 6 mm lattice bar, it effectively deals with the shear force on the end, therefore considerably strong.

No abstract

In a composite beam, a Shear connector is installed to resist the horizontal shear on the interface between steel beams and reinforced concrete slabs. The steel-wire-integrated deck plate slab is commonly used on the wide section beam. Then vertical bars are installed on the upper wire of the ends of the steel truss girder to ensure safety during construction. This paper develops a new shape shear connector which can replace the shear connector and vertical bar in a steel wire-integrated deck plate and evaluates shear strength by Push-out Test. 40 specimens were tested. Plate thickness and strength of concrete are parameters in Push-out Test. From the Pust-out Test, the new shear connector showed a higher shear capacity and ductility than a stud connector, and functioned as a vertical bar and shear connector.

No abstract

Recently, for the decreased work term and the convenience of construction work, the steel wire-integrated deck plate has been widely used in practice. Generally, in steel wire-integrated deck plate, lattice end is welded with upper deformed bar, therefore, only galvanized sheet iron bears the shear force without the vertical bar. But the galvanized sheet iron isn't strong enough, so the lattice end is shifted onto the top of the steel beam. Therefore, tests have been conducted on 24 specimens with several experiment variables to evaluate the structural safety of the proposed deck plate system during the construction step. The test results show that the lattice end on the steel beam effectively deals with the shear force.