JPH076331U - Floor structure - Google Patents

Abstract

(57) [Summary] [Purpose] This is an improvement that prevents mortar from leaking out from the gap at the end of the deck plate. [Structure] A pair of lattice members 7 in which an upper chord member 4 and a lower chord member 5 are connected by a bending member 6 are arranged in parallel, and both ends of each upper chord member 4 and each lower chord member 5 are respectively paired with a gate-shaped end fixing member 8. In the floor structure in which the box girder 1 having a gate-shaped cross section is formed by connecting the deck girders 1 to the lower surface of the box girder 1 via the spacer 2 and the deck girder 1 is connected to the gate-shaped end fixing member 8. The end gap portion S of the deck plate 3 to be closed was closed by press working to prevent leakage of mortar.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a floor structure used when forming a floor of a building, and more particularly to a floor structure that prevents mortar from leaking from the end of a deck plate.

[0002]

[Prior art]

 In this type of floor structure, an upper chord member 4 and a lower chord member 5 are connected by a bending member 6 to form a lattice member 7, as shown in FIG. 7, and a plurality of lattice members 7 are sandwiched by a spacer 2 to form a deck plate. 3 is joined. A gate-shaped end fixing member 8 having a substantially C shape is provided at both ends.

[0003]

[Problems to be solved by the device]

 By the way, in such a floor structure, since the deck plate 3 is provided with unevenness in the width direction as shown in FIG. 8 in order to have strength, a gap S is generated at the end of the deck plate 3. . In the figure, 3a is a concave portion and 3b is a convex portion. Therefore, when this floor structure is constructed on a steel beam 10 having a T-shaped cross section and mortar is poured, the mortar flows out from the gap S at the end of the deck plate 3 placed on the steel beam 10. There was a problem.

The present invention has been proposed in order to solve the problems of the conventional techniques, and it is an object of the present invention to provide a floor structure improved so that mortar does not leak from the end of the deck plate. To aim.

[0005]

[Means for Solving the Problems]

 To achieve this object, the present invention provides a pair of lattice members in which upper chord members and lower chord members are connected by bending members in parallel, and both ends of each upper chord member and each lower chord member are respectively fixed to a pair of gate-shaped end portions. In a floor structure in which a box-shaped girder with a gate-shaped cross section is formed by connecting with deck members, and deck plates are connected to the lower surface of this box girder via a spacer, the deck facing the gate-shaped end fixing material is used. The gap between the edges of the plate is closed by pressing.

[0006]

[Action]

 According to the above-mentioned structure, since the end portion of the deck plate is end closed, the mortar does not flow from the end portion of the deck plate.

[0007]

【Example】

 Hereinafter, a specific embodiment of the present invention will be described in detail with reference to the drawings. An embodiment of the floor structure according to the present invention is shown in the plan view of FIG. 1, and a front view is shown in FIG. In these figures, this floor structure consists of a box girder 1, spacers 2 and deck plates 3. The box girder 1 includes a pair of lattice members 7 in which an upper chord member 4 and a lower chord member 5 are connected by a bending member 6 and a pair of substantially C-shaped gate-shaped end fixing members 8 in which ends 8a are bent inward. . Specifically, both ends of each upper chord member 4 are supported by the upper side of the pair of gate-shaped end fixing members 8, and both ends of each lower chord member 5 are fixed inside the pair of gate-shaped end fixing members 8. Then, a box girder 1 having a gate-shaped cross section is formed. All joints are fixed by welding. The spacer 2 is formed by alternately forming a mountain-shaped portion 2a having a flat top portion and a flat skirt portion 2b.

The deck plate 3 has a concave portion 3a and a convex portion 3b juxtaposed by pressing a steel plate so as to correspond to the chevron portion 2a and the flat skirt portion 2b of the spacer 2, and the side portion 3c is bent. . The length of the deck plate 3 in the longitudinal direction is formed to be slightly shorter than that of the box girder 1 so that the gate-shaped end fixing member 8 protrudes from the deck plate 3.

Further, as shown in FIGS. 4 and 5, the end gap portion S of the convex portion 3b of the deck plate 3 is obliquely closed by pressing so as to fall to the tip side. Note that FIG. 6 shows an end cross section of the recess 3 a of the deck plate 3. In the figure, 9 parts show the part (closed part) which was subjected to the end closed processing. In this way, since the end portion of the deck plate 3 is end-closed, it is possible to prevent the mortar from leaking from the end portion of the deck plate 3 even when the mortar is poured into the floor structure.

[0010]

[Effect of device]

 As described above, according to the present invention, since the end gap portion of the deck plate facing the gate-shaped end fixing member is closed by press working, even if the mortar is poured into the floor structure, the deck plate It is possible to prevent the problem that the mortar leaks from the end.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a floor structure according to the present invention.

FIG. 2 is a front view of the floor structure shown in FIG.

FIG. 3 is a side view of the floor structure.

4 is a cross-sectional view taken along the line AA of FIG.

5 is a sectional view taken along line BB of FIG.

6 is a cross-sectional view taken along the line CC of FIG.

FIG. 7 is a front view showing a conventional floor structure.

FIG. 8 is a side view of a conventional deck plate.

[Explanation of symbols]

 1 box girder 2 spacer 2a chevron 2b flat skirt 3 deck plate 3a recess 3b convex 4 upper chord material 5 lower chord material 6 bending material 7 lattice material 8 gate-shaped end fixing material 8a end 9 end closed processing part (closed part) ) 10 Steel beam

Claims (1)

[Scope of utility model registration request] 1. A pair of lattice members in which an upper chord member and a lower chord member are connected by a bending member are arranged in parallel, and both ends of each upper chord member and each lower chord member are connected by a pair of gate-shaped end fixing members, respectively. In a floor structure in which a box girder having a gate-shaped cross section is formed, and a deck plate is connected to the lower surface of the box girder through a spacer, an end gap portion of the deck plate facing the gate-shaped end fixing material A floor structure characterized by being closed by pressing.