KR101864689B1

KR101864689B1 - speed deck for slab

Info

Publication number: KR101864689B1
Application number: KR1020170050472A
Authority: KR
Inventors: 김명환; 김용회; 홍순호; 최종수
Original assignee: 티앤에스슈퍼데크(주)
Priority date: 2017-04-19
Filing date: 2017-04-19
Publication date: 2018-06-07

Abstract

The present invention relates to an integrated deck for a slab in which a foot of a truss girder is welded and fixed to a welding projection of a steel plate, and in particular, the other end of the steel plate is inserted and connected between one end of another steel plate and a lattice foot.

Description

[0001] SPEED DEECK FOR SLAB [0002]

Generally, a reinforced concrete structure is a composite structure in which concrete, which is a compressive material, and reinforcing bars, which are a tensile material, are used together. This is a structure in which a mold is formed to form an outer surface of concrete, reinforcing bars are placed on the concrete, And the like.

In recent years, a steel plate form is used as a part of a reinforced concrete structure to solve various problems due to form demolition, and a typical material widely used for the slab floor construction of a large building is a truss composite deck plate.

4 is a cross-sectional view showing a conventional truss composite deck plate. The truss composite deck plate includes a truss girder and a base member 100 to which the truss girder is fixed.

The truss girder is composed of a plurality of reinforcing rods such as a top 6 and a bottom 8 and a lattice material 4 for connecting and fixing the reinforcing rods 4. The bottom of the lattice material 4 is provided with a horizontal lattice foot 9 Respectively. At this time, it is preferable that the lattice foot 9 is disposed symmetrically with respect to the phase current 6 positioned at the upper end of the mountain-shaped lattice material 4.

On the other hand, the base member 100 is formed of a galvanized steel sheet. Shaped beads 150, which are two-fold overlapping from the bottom surface 110 and are vertically bent and whose upper portions are bent horizontally, are formed at predetermined intervals, and the predetermined spacing is determined by the lattice foot 9 of the truss girder And is set so as to correspond to the position where it is disposed.

In addition, connecting ends 130 and 140 are formed at both side ends of the base member 100 so that a plurality of base members 100 are continuously installed by a required area.

However, after the connection ends 130 and 140 are connected, a space with the bottom surface 110 is formed, and when the concrete is laid, a small amount of concrete paste leaks into the spaces of the connection ends 130 and 140.

Also, since the connection steps 130 and 140 are bent, the manufacturing process is increased, and the male and female parts 130 and 140 of the connecting part are fastened together.

Patent Document: Korean Utility Model Registration No. 20-0365941

SUMMARY OF THE INVENTION It is an object of the present invention to provide an integral type deck for slabs which is improved in workability and workability of a connection part and which is free from leakage of concrete to be laid after connection.

In order to achieve the above object, the integral deck for slab according to claim 1 of the present invention comprises a steel plate body formed with welding protrusions that are bent upward at predetermined intervals along the lateral direction, and an extension A steel plate including a plate; And a plurality of truss girders welded and fixed to the welding protrusions, wherein each of the truss girders includes: a lattice material connecting the upper and lower currents at the current and the lower phase; And a lattice foot which is bent and welded to the welding protrusion, wherein the extending plate is inserted between one end of the other steel plate and the lattice foot.

In the integral deck for slab according to claim 2 of the present invention, the extension plate extends in the transverse direction from a stepped portion bent upward from the other end of the steel plate.

In the integral deck for slab according to claim 3 of the present invention, the upper surface of the extension plate is formed with an elastic catching portion for catching the lattice foot of the other truss girder.

The present invention has the following effects.

By further forming an extension plate extending from the other end of the steel plate, if it is inserted between one end of the other steel plate and the lattice foot, they are overlapped with each other so that there is no gap even when the decks are placed on both sides of the steel frame. So that the workability can be improved and the manufacturing performance can be improved since the male and female joints are not provided.

Further, since the extension plate is formed through the step, the entire bottom surface of the steel plate other than the bottom surface of the steel plate covers the thickness of the steel plate having different stepped portions, so that there is no space even when placed on the steel frame, .

Further, since the elastic catching piece is protruded from the upper surface of the extended portion, movement in the transverse direction between the deck and the other deck is suppressed, so that the existing male and female joint effects can be obtained.

In addition, since the elastic catches are bent downward when entering between one end of the other steel plate and the lattice foot, and immediately snap to the back side of the lattice foot, the operator catches the steel sheet can do.

Of course, when the extension plate of the steel plate is caught by the welding projection of another steel plate, it can be recognized as a signal that the steel plate is now required to be lowered.

1 is a perspective view showing an integral type deck for a slab according to a preferred embodiment of the present invention;
Fig. 2 and Fig. 3 are flowcharts showing a state in which an extension plate of the integral deck for slab of Fig. 1 is inserted and connected to another integral deck for slab.
4 is a cross-sectional view showing an embodiment of a conventional integral type deck for a slab;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an integral deck for a slab according to a preferred embodiment of the present invention, and FIGS. 2 and 3 are flowcharts showing a state in which an extension plate of the integral deck for slabs of FIG. 1 is inserted and connected to another integral deck for slabs to be.

1, the integral type deck 10 for a slab according to the present embodiment includes a steel plate 2 and a truss girder 1 fixed in the longitudinal direction of the steel plate 2, And includes a plurality of truss girders 1 to be fixed.

The steel plate 2 includes a steel plate main body 2 'to which the truss girder 1 is fixed and an extension plate 2' 'extending along the lateral direction at the other end of the steel plate main body 2'.

The steel plate main body 2 'is provided with welding protrusions 15 which are bent upward at predetermined intervals along the transverse direction.

The extension plate 2 '' is a plate extending in the transverse direction at the other end of the steel plate main body 2 ', and is placed on one end of another steel plate.

Further, a step 3 'is formed between the other end of the steel plate main body 2' and the extending plate 2 ''.

Further, the extension plate 2 " is formed with elastic catching pieces 20 along the longitudinal direction.

The elastic catching piece 20 is in the form of a louver which is cut out into a U-shape and lifted up.

It is preferable that the elastic latching pieces 20 are formed every place where the lattice foot 9 is located.

The truss girder 1 includes a lattice material 4 connecting the phase current 6 and the bottom current 8 and the phase current 6 and the bottom current 8.

The lattice material 4 is formed in a semicircular shape with a lattice foot 9 extending in the horizontal (horizontal) direction.

And the bottom surface of the lattice foot 9 is spot welded while being placed on the top of the welding projection 15. [

Hereinafter, a construction method of the integral type deck 10 for slabs according to the present embodiment will be described. In the drawings, a indicates a first designation and b designates a second designation.

First, as shown in Fig. 2, the other end of the integral deck 10b for a second slab is inserted into one end of the integral deck 10a for a first slab placed on a steel beam (not shown).

That is, the second extending plate 2 "b of the integral deck 10b for the second slab is inserted obliquely between one end of the first steel plate 2a and the first lattice foot 9a.

When the second extension plate 2''b is inserted at an angle, when the elastic latching piece 20b is pushed and released by the bottom surface of the first lattice foot 9a, the first lattice foot 9a is lifted up, As shown in FIG.

In this state, when the integral deck 10b for the second slab is placed on the steel frame, the upper end of the resilient retaining piece 20b is caught on the center of the back surface of the first lattice foot 9a as shown in Fig. 3, It is possible to suppress the pushing in the horizontal direction as much as possible.

Of course, the end of the second extension plate 2 " b may be inserted until it is caught by the first welding protrusion 15a.

On the other hand, the height of the stepped portion 3'b is preferably substantially equal to the thickness of the steel plate 2a.

Therefore, when the second extending plate 2''b is placed on one end of the first steel plate main body 2'a, the bottom surface (bottom surface) of the first steel plate 2a and the bottom surface The steel plates 2b are overlapped with each other so that the bottom surfaces (bottom surfaces) of the steel plates 2b are superimposed on one another and are recognized as one steel plate so that the clearance with the steel frame is substantially eliminated.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. It goes without saying that such changes are within the scope of the claims.

1: Truss girder 2: Steel plate
2 ': steel plate body 2'': extension plate
3 ': Step 4: Lattice material
6: current present 8: bottom current
9: Lattice Foot 15: Welding projection
20: Elastic locking piece

Claims

An integrated deck for slabs, the front and rear ends of which are placed on a beam,
A steel plate bent upward to form welding protrusions at predetermined intervals along a lateral direction; And
And a plurality of truss girders welded and fixed to the welding protrusions,
Wherein the steel plate includes a flat steel plate main body in which the welding protrusions to which the truss girder is fixed are bent and a flat elongated plate extending along the lateral direction at the other end of the steel plate main body,
Wherein each of the truss girders includes a lattice material for connecting the phase current and the bottom current at the current phase and the bottom phase, and a lattice foot bent at a lower end of the lattice material in a transverse direction and welded to the welding projection,
A stepped portion that is bent upward is formed between the other end of the flat steel plate body and the flattened extension plate,
When the flat elongated plate is inserted between one end of another flat steel plate and the lattice foot and placed on one end of the other flat steel plate, the bottom surface (bottom surface) of the flat steel plate and the bottom surface The integrated deck for slabs according to any one of claims 1 to 3,

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