JPH037456Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a cellular deck forming a cellular duct capable of carrying a large amount of wiring.

[Conventional technology] In recent years, OA has rapidly progressed, and cellular ducts have gradually become popular as floor electrical circuit systems for office buildings because they can accommodate a large amount of wiring and can accommodate future increases in wiring. It is being done.

There are various types of cellular duct floor electrical circuit systems, but among them, cellular ducts using deck plates are becoming the most popular. As a typical example of a cellular duct using a deck plate, as shown in FIG. A flat bottom plate 7 of approximately the same width is placed against the lower flange 2 and attached by spot welding to the deck plate 6, which has a cross-sectional shape of a continuous waveform and whose entire length extends in the longitudinal direction. There is a cellular deck 9 on which a cellular duct 8 is formed.

By the way, this cellular deck 9 uses only the peaks 4 to form the cellular ducts 8, so the intervals between the cellular ducts 8 are increased, the width of the 3-way floor electrical circuit is widened, and the OA equipment is There was no flexibility in desk arrangement.

For this reason, the width of the 3-way floor electric circuit is narrowed,
As a cellular deck that can be adapted to the arrangement of desks for OA equipment, as shown in FIG. A plurality of protrusions 10 each having a length substantially equal to the interval between the adjacent ridges 4 are closed by an upper plate 11 recessed downward, and the adjacent ridges 4 are closed by a lower plate 12. Cellular deck 1 with cellular ducts 13 and 14 formed with
5 (Utility Model Application Publication No. 54-71412), and as shown in FIG. A cellular deck 20 in which a gutter-like material 18 having a concave (or convex) protrusion 17 is fitted with the protrusions 16 and 17 to form a cellular duct 19 also in the valley 5 (in 1988) -153613).

[Problems to be solved by the invention] However, in the cellular decks 15 and 20 shown in FIGS. 6 and 7, respectively, electric wires are caught in the corners where the inclined web 3 intersects with the lower plate 12 or the bottom plate 7. Therefore, a plain inner surface cannot be secured as an electric path. In addition, the insert studs 22 are fixed upright to the cellular decks 15, 20 laid on the beams 21 (dotted and dashed lines) as shown by the dashed and dotted lines, and after pouring concrete 23, the cellular ducts 13, 14 and the cellular ducts are inserted from the insert studs 22. 8,
19, the inclined web 3 and the lower plate 1
Near the corner where 2 intersect, near the corner where the inclined web and the bottom plate 7 intersect, and the lower flange 2 and the gutter-like member 1
The vicinity of the corner where the convex portions 17 of the wires 8 intersect becomes a blind spot, making it difficult to set up the electric wires, that is, wiring work is difficult, and workability is extremely poor. Furthermore, when the cellular decks 15 and 20 pour the concrete 23, the protrusions 17 of the gutter-like material 18 and the protrusions 16 of the inclined web 3 are inserted into the valleys 5 from the gaps between the upper plate 11 and the peaks 4. From the gap to the bottom of valley 5,
Water enters the concrete and collects in the cellular ducts 13 and 19 formed in the valley 5, causing problems with the wiring. Furthermore, in the cellular deck 15 shown in FIG. 6, since the trough 5 is closed with the upper plate 11 to form the cellular duct 13, concrete 23 is not placed in the trough 5, and therefore the synthetic deck The function of the patient is reduced. Furthermore, the cellular decks 15 and 20 shown in FIGS. 6 and 7 are heavy because the lower plate 12 and the bottom plate 7 are attached to the deck plate 6, and are heavy and inefficient for two-person operation. Working there can be dangerous.

[Purpose of the invention] The present invention was made to solve the above problems. It is easy to assemble, can form a 3-way cellular duct with a plain inner surface, and also prevents concrete water from entering the cellular duct. The purpose of this invention is to provide a cellular deck that is free from infiltration.

[Means for Solving the Problems] In order to solve the above problems, the cellular deck according to the present invention has a horizontal upper flange and a horizontal lower flange connected through an inclined web, and the peaks and valleys alternate. A deck plate having a continuous wave shape, a locking part provided in the middle of the inclined web, and a cross-sectional shape having a convex part at the center of the width direction of the lower flange and extending in the longitudinal direction as a whole; A cell bottom plate having a groove-shaped cross section and extending in the longitudinal direction as a whole, in which locking pieces formed at the upper ends of both sides are fitted and held in locking portions of both side inclined webs at the lower sides of the two peaks. and a valley groove cell having a box-shaped cross section with legs and extending in the longitudinal direction, which is placed on the convex part of the lower flange at the valley part between the adjacent peak parts where the cell bottom plate is fitted. It is characterized by being configured.

[Function] When assembling the cellular deck configured as described above, the deck plate is inverted on the deck that has already been laid, and the cell bottom plate is attached to the portion where the adjacent peaks from above become valleys due to the inversion. The cell bottom plate is placed upside down, and the operator steps on the cell bottom plate with his or her feet and press-fits the locking pieces formed on both sides of the cell bottom plate into the locking portions in the middle of the inclined web. A cellular duct is formed between the two.
Then, turn it over and lay it in the desired position, and insert the valley groove cell with a box-shaped cross section with legs into the valley between the adjacent peaks where the cell bottom plate is press-fitted, and the cellular duct will be installed in the valley. The assembly of the cellular deck with narrow three-way cellular ducts is completed. After that, insert studs are erected and communicated at the required positions of each cellular duct, and concrete is poured on top of the cellular deck to obtain a composite slab. All of the cellular ducts have a plain inner surface. This provides an easy-to-wire floor electrical path.

[Embodiment] An embodiment of the cellular deck of the present invention will be described with reference to FIG. 1. 30 is a deck plate, and this deck plate 30 has a plurality of horizontal upper flanges 31 in this example, two horizontal upper flanges 31, In this example, the three horizontal lower flanges 32 are connected and integrated through the inclined webs 33 to form a waveform in which peaks and valleys continue alternately, and each of the inclined webs 33
The part extending from the approximate center to the joining point with the upper flange 31 protrudes outward to become a locking part 34, and the widthwise central part of the lower flange 32 between the inclined webs 33 forms an inverted trapezoidal convex part 35. It has a rounded cross-sectional shape and extends in the longitudinal direction perpendicular to the width direction. The lower flanges 32 on both the left and right sides have a width slightly longer than 1/2 of the width of the lower flange 32 between the inclined webs 33, and have a hook-shaped bent part 36 at the left outer end and a Z-shaped bend at the right outer end. A portion 37 is formed. A V-shaped groove 38 is formed in the center portion of the upper flange 31 in the width direction.

Each peak 39 of the deck plate 30 having such a structure
The lower side has a hooking piece 40 having a groove-shaped cross section and bent at the upper end of both sides in a dogleg shape facing the outside,
A cell bottom plate 41 extending in the longitudinal direction as a whole is arranged,
The locking pieces 40 of the cell bottom plate 41 are fitted into the locking portions 34 of the inclined web 33, and a cellular duct 42 is formed between each mountain portion 39 and the cell bottom plate 41. In addition, in the valley part 43 of the deck plate 30,
The cell bottom plate 41 is turned upside down, and a partition plate 44 whose both ends are bent downward in a hook shape is arranged between the hook pieces 40 at the lower ends of both sides, and the hook parts 45 at both ends are spotted on the hook pieces 40. A valley-groove cell 47, which has a box-shaped cross section and extends in the longitudinal direction, is welded to form legs 46, and a cellular duct 48 is formed above the inverted trapezoidal convex portion 35 of the lower flange 32. A cellular deck 49 is configured as a.

Cellular deck 49 configured as above
When constructing a composite deck slab, the deck plates are laid with a required spacing between them, and the assembly process will be explained below. A deck plate 30' is laid on the beam 50 as shown in FIG. Flip it over the
As shown in FIG. 2c, the cell bottom plate 4 is inserted from above into the two grooves that have become valleys by reversing the peaks 39.
1 is placed upside down, the operator steps on the cell bottom plate 41 with his/her feet, and press-fits the locking pieces 40 formed at the upper ends of both sides (the lower ends in the drawing, since the cell bottom plate 41 is upside down) into the locking portions 34 of the inclined web 33. Then, a cellular duct 43 is formed between each peak portion 39 and the cell bottom plate 41.
Then, by reversing this, as shown in FIG.
37 and lay the cell bottom plate 4.
1 is press-fitted into the valley portion 4 between the adjacent peak portions 39.
A valley groove 47 having a box-shaped cross section with legs 46 formed therein is inserted into the groove 3 , and is supported by the legs 46 on the lower flange 32 of the valley bottom to form a cellular duct 48 above the inverted trapezoidal convex portion 35 . Assemble cellular deck 49.
Thereafter, using the same procedure, the cellular decks 49 are assembled and laid between the deck plates 30' with the required spacing. Thereafter, on each cellular deck 49, as shown in FIG. After mesh reinforcements 52 are arranged as shown in FIG. 2f, concrete 53 is poured to construct a composite slab 54.

Note that the cell bottom plate 41 of the cellular deck 49 in the above embodiment may be replaced with a cell bottom plate 41' having both sides 41a inclined so as to expand upward as shown in FIG. In addition, the valley cell 47 is
Hook portions 45 are provided at both ends between the locking pieces 40 of the cell bottom plate 41.
The hook portion 45 is spot welded to the hook piece 40, but the invention is not limited to this, and as shown in FIG. It has legs 58 made by fitting a band plate 56 whose ends are bent at right angles with the bent pieces 57 on the outside, and spot welding the bends 57 at both ends to the outer ends of both sides 55a of the channel member 55. It may be replaced with the valley cell 59. Furthermore, the locking portion 34 on the inclined web 33 of the deck plate 30 is
Although it protrudes outward, the present invention is not limited to this, and the middle and high portion of the inclined web 33 may partially protrude inwardly or outwardly as a locking portion, and the peak portion 39 may correspond to this. The locking piece 40 of the cell bottom plate 41 disposed on the lower side is preferably bent inwardly or outwardly. Further, the convex portion 35 of the lower flange 32 of the deck plate 30 is not limited to an inverted trapezoid.

[Effect of the invention] As can be seen from the above explanation, when assembling the cellular deck of the present invention, the deck plate is inverted,
By press-fitting the cell bottom plate upside down into the groove where the peaks are reversed from above to become valleys,
A cellular duct can be easily formed under the mountain.
Further, by inverting and laying this and then inserting a box-shaped valley groove cell with legs into the valley, a cellular duct can be easily formed in the valley and assembled, resulting in extremely good workability. Furthermore, during transportation, the cellular deck is transported separately into the deck plate, cell bottom plate, and groove cells, so generally the same transportation effort as the deck plate is required.

In addition, in the cellular deck of the present invention, all of the narrowly spaced three-way cellular ducts have a plain inner surface, making it possible to provide a floor electrical path that is easy to wire.

Furthermore, since the cellular duct formed at the valley bottom of the cellular deck of the present invention is formed above the valley, even if concrete water infiltrates into the valley floor when concrete is placed on the cellular deck, the cellular Do not enter the duct. Therefore,
There is no problem with wiring.

In addition, since the cellular deck of the present invention uses a deck plate that has the function of a synthetic floor slab,
When pouring concrete, there is no need to place any reinforcements other than the mesh reinforcements on the top of the concrete floor to prevent cracks. Therefore, on-site construction is easy, the construction period can be shortened, the floor slab can be made thinner, and the overall weight of the building can be reduced.

Furthermore, the cellular deck of the present invention can be provided with a fire-resistant covering function by inserting a fire-resistant material using the gaps between the valley groove cells and the valley bottoms within the valleys.

[Brief explanation of drawings]

Figure 1 is a perspective view showing one embodiment of the cellular deck of the present invention, Figures 2 a to f are diagrams showing the steps from assembling the cellular deck in Figure 1 to making a composite deck, and Figure 3 is a perspective view showing an embodiment of the cellular deck of the present invention. FIG. 4 is a diagram showing another example of a cell bottom plate, FIG. 4 is a diagram showing another example of a valley-groove cell, FIG. 5 is a sectional view showing a conventional cellular deck, and FIGS.
The figures are cross-sectional views of cellular decks each having conventional closely spaced three-way cellular ducts. 30... Deck plate, 31... Upper flange, 32... Lower flange, 33... Inclined web,
34...Locking part, 35...Convex part, 39...Mountain part,
40...Hatching piece, 41...Cell bottom plate, 42...Cellular duct, 43...Trough, 46...Legs, 4
7...Tanizo cell, 48...Cellular duct, 49
...Cellular deck.

Claims (1)

[Scope of utility model registration request] A horizontal upper flange and a horizontal lower flange are connected via an inclined web to form a waveform in which peaks and troughs are continuous alternately, and a locking part is provided in the middle of the inclined web, and a center portion in the width direction of the lower flange is formed. A deck plate having a cross-sectional shape having a convex portion and extending in the longitudinal direction as a whole, and two adjacent deck plates of the deck plate.
At the locking part of the both side inclined web at the lower side of the mountain part,
A cell bottom plate having a groove-shaped cross section and extending in the longitudinal direction, into which hooking pieces formed at the upper ends of both sides are fitted, and a valley existing between the adjacent peaks into which this cell bottom plate is fitted. 1. A cellular deck comprising a box-shaped valley and groove cell with legs and extending in the longitudinal direction, which is disposed on a convex portion of a lower flange.