JPH0497052A - Deck plate - Google Patents

Abstract

PURPOSE:To facilitate manufacturing work and, at the same time, to increase strength and to make it possible to increase the degree of accuracy by forming mounting sections in a plurality of places widthwise on the rear of a face plate, and arranging a plurality of reinforcing members lengthwise of the rear of the face plate. CONSTITUTION:Mounting sections 13... are formed lengthwise in a plurality of places widthwise of the rear of a face plate 11, and flanges 18... projected outward of both sides of surface side edge sections of reinforcing members 12... are borne and fixed on the mounting sections 13.... The reinforcing members 12... are arranged lengthwise of the rear of the face plate 11. According to the constitution, manufacturing work can be made by a comparatively small sized forming machine, and a distortion or crack can be hardly generated in a flat section.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a deck plate used as a disposable formwork when constructing a concrete floor of a building.

(Prior Art) Conventionally, as a deck plate as described above, the deck plate shown in FIG.
As shown in Figure 30, a metal plate such as a steel plate is bent to form a face plate portion (1) with a flat surface, and reinforcing portions (2) (lower ribs) along the longitudinal direction at multiple locations in the width direction of the back surface. Some were formed into an isosceles triangle shape. This deck plate has flat parts (3) formed by crushing the reinforcing parts (2) at both ends, and engaging parts (4) and (5) that engage the deck plates adjacent to both sides. was formed.

In addition, as shown in FIGS. 31, 32, and 33, a face plate portion (6) with a flat surface is formed by bending a steel plate or the like.
There was also one in which a reinforcing part (7) with a double angled cross section was formed by folding back on the back surface, and flat parts (8) were formed by crushing the reinforcing part (2) at both ends.

As shown in FIG. 32, the deck plate as described above has flat parts (8) (or (3)) formed at both ends supported and fixed on a beam member (9) of a building, and a face plate part (6). ) (or (1)), it is used to arrange reinforcing bars, embed the reinforcing bars, and pour concrete to construct concrete floors. Note that the deck plate is left on the concrete floor without being removed even after the concrete has hardened.

(Problems to be Solved by the Invention) Conventional deck plates are made by bending a single steel plate or the like to integrally form a reinforcing part on the back side of the face plate part, so they cannot be easily formed using a large press machine, etc. The problem is that the processing conditions are severe and that distortion due to concentrated stress or cracking of the material such as the steel plate occurs when a flat part with crushed reinforcing parts is provided at both ends. Furthermore, there was a problem in that some of the concrete poured onto the surface of the deck plate entered the reinforcement part through the gaps on the upper edge of the reinforcement part, resulting in wasted concrete.

The present invention solves the above-mentioned problems, allows easy molding using a relatively small molding machine, eliminates waste of concrete, causes no distortion or cracking, and improves precision. It is an object of the present invention to provide a deck plate in which high flat parts can be formed at both ends and the material cost can be reduced.

[Means to solve the problem]

In the present invention, mounting portions extending in the longitudinal direction are formed at a plurality of locations in the width direction on the back surface of the face plate, flanges protruding outward on both sides of the front side edge of the reinforcing member are supported and fixed to these mounting portions, and a plurality of The reinforcing member is arranged along the longitudinal direction of the back surface of the face plate.

(Function) In the uninvented invention, the face plate and the plurality of reinforcing members are separate members, and it is sufficient to bend each of them separately. Therefore, a large and powerful molding machine is not required, and the molding machine can be compact and processed. A molding machine with relatively low pressure can be used, especially when flat parts are to be provided at both ends. can be fixed to the mounting portion formed on the back surface of the face plate by welding or caulking, so that the flat portion is less likely to be distorted or cracked, and a highly accurate deck plate can be obtained. Then, since the front side of the reinforcing member is covered with the face plate,
Concrete does not enter inside the reinforcing member, and
Depending on the usage conditions, it is possible to attach multiple types of reinforcing members with different thicknesses to one type of face plate, such as fixing a thicker reinforcing member to a face plate of the same thickness to increase strength. , can save material costs.

〔Example〕 Hereinafter, embodiments of the present invention will be described with reference to preliminary drawings.

1 to 344 show deck plates according to the first embodiment of the present invention. In FIGS. 1 and 2, (11)
is a face plate, and (12) is a reinforcing member that becomes a lower rib.

The face plate (11) has a rectangular shape made by bending a steel plate with a thickness of approximately 0.8 to 1.2 mm, and has mounting portions (13) consisting of recesses at multiple locations in the width direction on the back surface at equal intervals. It is located. These mounting portions (13) are formed as a set of two strips along the longitudinal direction of the face plate (11) over its entire length. Engagement portions (14) and (15) are formed which are folded back inward in the width direction on the front surface side.

The reinforcing member (12) is made by bending a steel plate with a thickness of about 0.8 to 2.0 mm, and both side plates (17) extend at right angles from both side edges of the bottom plate (16) to the surface side, Both side plates (
The flange (18) is bent at a right angle and protrudes outward on both sides from the surface side edge of the flange (17), and the cross section thereof is formed into a groove shape. Further, the reinforcing member (12) has a flange (18) formed at a length equal to that of the face plate (11) and at a position and width that engages the set of attachment portions (13).

As shown in Figure li@3, the reinforcing member (12) has flat parts (!9) formed at both ends via inclined parts (20). That is, as shown in Fig. 5(a) to fe), the bottom plate (16) and the flange (18) of both side plates (17)
) while bending the flange (1) toward the center in the width direction.
8) and the short parts (17a) of both side plates (17) connected thereto are crushed in the vertical direction to form a flat part (19), and 'M5 (b)
The inclined portion (20
) to form.

Then, attach the flange (18) of the reinforcing member (12) to the face plate (
By engaging and supporting the flange (18) and the mounting part (13) by spot welding or the like, the flange (18) and the mounting part (13) are engaged and supported at multiple locations on the back surface of the face plate (11). By fixing the reinforcing members (12), the deck plate of this example can be obtained as shown in FIG. 4. Note that the flange (18) is attached to the mounting part (
When welding to 13), the face plate (11) is turned upside down, the mounting part (13) is used as an upward stand, and the flange (18) of the reinforcing member (12), which is turned inside out, is supported on these. This allows welding to be performed with good workability, and the flanges (18) extend to both ends of the mounting portion (13).

The deck plate of the 'fst embodiment constructed as described above is transported to a construction site with the reinforcing member (12) fixed to the face plate (11). The engaging portions (15) and (14) provided on the face plates (11) of adjacent deck plates are engaged to connect a plurality of face plates (ill) in the left-right direction.
) is supported and fixed on the beam member of the building via the flat part (19) of the reinforcing member (!2) in the same manner as the conventional deck plate described above. In this state, reinforcing bars are placed on the face plate (11), both ends of the face plate (11) are sealed by appropriate means, the reinforcing bars are embedded, and the concrete is placed on the face plate (11).
11) Construct the concrete floor by pouring on top.

Note that the deck plate of this example is left as a waste formwork even after the concrete hardens.

7 to 10 show modifications of the first embodiment.

The reinforcing member (12) shown in FIG. 7 is attached to both side plates (17).
By forming holes (17b) at predetermined intervals along the longitudinal direction of these, the weight of the reinforcing member (12) can be reduced and the holes (+
7b) enables wiring and piping of electric wires, etc.

What is shown in Fig. 8 is the bottom plate (16) of the reinforcing member (12).
By narrowing the width of the flange (18) and tilting the side plates (17) so that the width between them becomes wider toward the opening, the flange (18) can be easily attached to the attachment part (13) of the face plate (11). It is made to be weldable. In addition, the one shown in FIG. 8 has a pair of adjacent mounting parts (13
), the face plate (11) is reinforced by forming an upper rib (21) with approximately the same height as these.

What is shown in FIG. 9 is a reinforcing member (12) with both side plates (17
) by bending the middle part over the entire length toward the center in the width direction, making it easier to form flat parts at both ends.

The reinforcing member (12) shown in FIG. 10 has a bottom plate (16) curved to have an arcuate cross section.

The reinforcing member (12) shown in FIGS. 7 and 10 is
Similar to the first embodiment shown in FIGS. 1 to 4, it is fixed to the face plate, and flat portions are formed at both ends. Further, the structure of the deck plate shown in Figure 'fS8 and Figure 9 is the same as that of the first embodiment except as described above. In addition, the seventh
In the figures, FIGS. 8, 9, and 10, the same reference numerals as in FIGS. 1 and 2 indicate corresponding parts.

As shown in FIG. 11, the deck plate according to the second embodiment of the present invention has two mounting portions (22) formed on the back surface of the face plate (11) by folding them back at 2111 and protruding. The flange (18) of the reinforcing member (12) is engaged with the mounting part (22) of the first
From the solid line in Figure 1, bend the flange (18) as shown by the chain line and caulk the reinforcing member (18) to the face plate (11).
12) is fixed. The structure of the deck plate of the second embodiment other than the above is the same as that of the first embodiment,
In the second embodiment, the surface of the face plate (U) can be made flat without any protrusions. In FIG. 11, the same symbols as in FIGS. 1 and 2 indicate corresponding parts.

In addition, as a modification of the second embodiment, Fig. fJ7, Fig. 8,
li@The reinforcing members shown in FIGS. 9 and 10 are used in place of the reinforcing members shown in FIG. 11.

The above-mentioned 1. The deck plate of the second embodiment and these modified examples has a mounting portion (13) of the face plate (work 1) in two rows and one
The reinforcing member (12) was fixed to the two mounting portions (13) by flanges (18) protruding from the front side edges of the both side plates (17) from which the bottom plate (16) extended toward the front side. Therefore, a box-shaped cross section is formed by the portion between the mounting portions (13) of the face plate (11) and the reinforcing member (12), thereby providing a deck plate with great strength.

As shown in FIG. 12, the deck plate according to the third embodiment of the present invention has a face plate (11 ), both side plates (25) are stood up so as to be almost in contact with the circular bottom (24) stepped on by the upper edges, and flanges (26) are placed on both sides of the upper edges of these side plates (25). A plurality of reinforcing members (12) each having a cross-sectional shape bent at right angles are provided. Then, the flange (26) of the reinforcing member (12) is secured and supported by the mounting portion (23) of the face plate (11),
These flanges (26) are welded and fixed to the mounting portion (23). The configuration of the third embodiment other than that described above is the same as that of the first embodiment, and in FIG.
The same symbols as in FIG. 2 indicate corresponding parts.

13 to 15 show modifications of the reinforcing member of the third embodiment.

The reinforcing member (12) shown in FIG. 13 differs from the reinforcing member of the third embodiment in that the bottom part (24) has an isosceles triangular cross section.

The reinforcing member (12) shown in FIG. 14 has a bottom part (24) connected to both side plates (25) folded in two in close contact with each other vertically,
The only difference from the reinforcing member of the third embodiment is the force used to form an L-shaped cross section between the side plates (25) and the bottom (24).

The reinforcing member (12) shown in FIG. 15 has both side plates (25) bent upward from the bottom plate (27) substantially in contact with each other at their upper edges, and has flanges (26) on both sides of the upper l&i parts. It is a curved version.

The reinforcing member (12) shown in FIGS. 13, 14, and 15 is fixed to the face plate in the same manner as in the third embodiment shown in FIG. Note that in FIGS. 13 and 14, the same reference numerals as in FIG. 12 indicate corresponding parts.

FIGS. 16 and 17 show modifications of the face plate of the third embodiment.

The face plate (11) shown in FIG. 16 is reinforced by forming upper ribs (21) of almost the same height as these between the mounting parts (23).

The face plate (11) shown in FIG.
) to strengthen the face plate (I1).

The present invention is not limited to the above embodiments, but as shown in FIG.
), etc., there is a rib (29) on the tank that is perpendicular to the mounting part (13).
The face plate (11) may be reinforced by protruding a large number of them at appropriate intervals.The structure of the face plate (11) shown in Fig. In FIG. 18, the same reference numerals as in FIGS. 1 and 2 indicate corresponding parts. Furthermore, a tank top rib similar to the tank top rib shown in FIG. 18 may be provided on the face plate shown in FIG. f412.

The engaging portions (14) and (Is) of the face plate (11) can be selected as appropriate as long as they can connect adjacent face plates (11) in the left and right direction, as shown in Figs.
As shown in Figures 4 and 3425, the engaging portion (14),
(It looks good if the appearance is similar to the upper rib when 151 is engaged.

As shown in FIG. 26, the flat part (19) of the reinforcing member (12) is obtained by cutting out the side plates (17) and the bottom plate (16) at both ends of the reinforcing member (12), and leaving only the flange (18) as a face plate. As shown in figure N27, leave the end of the bottom plate (16) and cover this part with the plate (
16a) may be bent toward the front side and fixed to the side plate (17) by welding or the like, and the openings at both ends may be closed. Alternatively, as shown in FIG. ) may be formed with a sloped portion (20) closed by a closing plate (1ea) formed at the end of the
It can be used in both embodiments, and the same reference numerals as in FIGS. 3 and 4 omit corresponding parts in FIGS. 26, 27, and 28.

In the deck plates of each of the embodiments and modifications described above, the protruding edge of the flange of the reinforcing member (12) is made to protrude outward in the width direction from the parts other than the flange, such as the side plate and the bottom plate. When fixing the flange to the mounting part of the face plate (11) by welding or caulking, the side plates, bottom parts, etc. do not get in the way, and the flange can be fixed to the face plate (c) with good workability.

The reinforcing member has a length shorter than the length of the face plate and is fixed to the back side of the face plate, and both ends of the face plate are made to protrude from both ends of the reinforcing member by the length of the part to be placed on the beam, There is no need to remove the side and bottom plates of the reinforcing member.
Since it is only necessary to cut it into a car, it is possible to obtain a deck plate with good workability and at a low cost.

In addition, since the deck plates of each of the embodiments and these modified examples have a low height of the portion that protrudes toward the surface of the face plate (11), it is easy to perform operations such as arranging reinforcing bars and pouring concrete. It is also easy to seal both ends of the face plate supported above.

Furthermore, we used many types of reinforcing members with plate thicknesses in the range of O, a to 20 mm, with plate thicknesses varying in increments of 0.2 mm; ~3f! A similar type of face plate can be selected and used as appropriate, and by doing so, deck plates with desired strength can be mass-produced easily and at low cost.

Further, the present invention is not limited to the configurations of the embodiments and modified examples described above, and the configuration can be modified as appropriate without departing from the gist.

Furthermore, the deck plate of the present invention can be used not only for concrete floors but also for constructing concrete roofs.

(Effects of the Invention) As explained above, the deck plate of the present invention has mounting portions extending in the longitudinal direction formed at multiple locations in the width direction on the back surface of the face plate, and these mounting portions are provided on both sides of the front side edge of the reinforcing member. Since the outwardly protruding flange is supported and fixed, and the plurality of reinforcing members are arranged along the longitudinal direction of the back surface of the face plate, the following effects can be obtained.

That is, in the present invention, the face plate and the plurality of reinforcing members are made into separate members, and it is only necessary to bend each of them separately. Therefore, a large and powerful molding machine is required, and a small and powerful molding machine is required. In particular, a small molding machine will do the trick.
Even when flat parts are provided at both ends, the flat parts are formed at both ends before fixing the reinforcing member to the face plate,
Thereafter, the flange of the reinforcing member may be fixed to the mounting portion formed on the back surface of the face plate by welding or caulking, so that distortion or cracking of the flat portion is less likely to occur, and a highly accurate deck plate can be obtained. Since the front side of the reinforcing member is covered with the face plate, concrete does not get inside the reinforcing member.
Fixing thick reinforcing members to increase strength, etc.
Multiple types of reinforcing members with different plate thicknesses can be attached to one type of face plate, saving material costs.

[Brief explanation of drawings]

1 is a cross-sectional view showing a deck plate according to a first embodiment of the present invention, FIG. 2 is an enlarged perspective view of the same portion, FIG. 3 is an enlarged perspective view of the end of a reinforcing member of the first embodiment, and FIG. The figure is a side view of a reinforcing member with both ends flattened and fixed to a face plate, FIGS. Figure 6 is a cross-sectional view showing how adjacent face plates are connected, Figure 7 is a partially enlarged perspective view showing a modified example of the reinforcing member of the lt embodiment, Figures 8 and 'M9 are'!
FIG. 10 is a partial perspective view and a cross-sectional view showing different modifications of the deck blade of the J1 embodiment.
FIG. 11 is a partially enlarged cross-sectional view showing a deck plate according to a second embodiment of the present invention, and FIG. 13, 14 and 15 are cross-sectional views showing the deck plate of the embodiment, and FIGS. 16 and 17 are cross-sectional views showing mutually different modifications of the reinforcing member of the third embodiment, respectively. The figures are cross-sectional views showing different modifications of the face plate of the third embodiment, FIG. 18 is a partial perspective view showing an example of the face plate provided with upper horizontal ribs, and FIGS. Figure 21, 2nd
2, 23, 24, and 25 are cross-sectional views showing how adjacent face plates are connected by different engaging portions, and FIGS. 26 and 27 are cross-sectional views showing how the ends of the reinforcing member are connected to each other. FIG. 28 is a perspective view showing different modifications, and FIG. 29 is a side view showing still another modification of the end of the reinforcing member.
Figures 30 and 30 are perspective views and cross-sectional views showing examples of conventional deck plates, Figures 31, 32, and 3.
3 is a side view, a perspective view, and an enlarged cross-sectional view showing the other side of a conventional deck plate. (1)...face plate part, (3)...flat part, (5)...engaging part, (7)...? i! i strong part, (9)... Beam member, (11)... Face plate, (13)... Mounting part, (15)... Engaging part, (16a)... Closing plate, ( 17a)...Short part, (18)...Flange, (2C)...Slope part, (22)...Mounting part, (24)...Bottom part, (26)...Flange, (28)... Projection,... Reinforcement part,... Engagement part,... Face plate part,... Flat part, (12)... Reinforcement member, (14)... Engagement part. Joining part, (16)... Bottom plate, (17)... Side plate, (17b)... Hole, (19)... Flat part, (21)... Upper rib, (23)... - Mounting part, (25)... Side plate, (27)... Bottom plate, (29)... Tank top rib.

Claims (1)

[Scope of Claims] (1) Attachment portions extending in the longitudinal direction are formed at multiple locations in the width direction on the back surface of the face plate, and flanges protruding outward on both sides of the front side edge of the reinforcing member are supported in these attachment portions. A deck plate, characterized in that the deck plate is fixed and a plurality of the reinforcing members are arranged along the longitudinal direction of the back surface of the face plate. (2) The mounting portions of the face plate are made up of two strips as a set, and the reinforcing members are such that flanges projecting from the front side edges of both side plates extending from the bottom plate to the front side are supported and fixed to the mounting portions, respectively.
The deck plate according to claim 1, wherein a box-shaped cross section is formed by the portion between the attachment portions of the strips and the reinforcing member. (3) The deck plate according to claim 1 or 2, wherein the reinforcing member has a projecting edge of the flange projecting outward in the width direction from a portion of the reinforcing member other than the flange. (4) Claim (1), (2) or (3) wherein the face plate is capable of supporting and fixing a plurality of types of reinforcing members having different plate thicknesses.
) Deck plate described in ). (5) Claims (1), (2), wherein the face plate is provided with horizontal ribs orthogonal to the mounting portion at a plurality of locations at predetermined intervals in the longitudinal direction of the face plate.
The deck plate according to (3) or (4). (6) Claims (1), (2), (3), and (4) wherein the reinforcing member has both ends flattened and is supported and fixed to the face plate.
Or the deck plate described in (5). (7) Claims (1), (2), (3), (7) wherein the flanges of the reinforcing member are engaged with mounting portions consisting of grooves opening on the back surface of the face plate and welded to these mounting portions, respectively. 4), (5) or (6)
The deck plate described in. (8) Claims (1), (2), (3), (4), (5) or (1) wherein the flanges of the reinforcing member are each caulked and fixed by a mounting portion consisting of a protrusion protruding from the back surface of the face plate.
The deck plate described in 6).