JPH0721220B2 - Floor structure of building - Google Patents

Description

TECHNICAL FIELD The present invention relates to a floor structure of a building, and more specifically,
The deck plate made of metal steel plate is used as the concrete formwork of the floor on the upper floor, and after placing the concrete, the deck plate is left on the lower surface of the floor on the upper floor, and from the lower surface of this deck plate to the lower floor. In a floor structure comprising a steel frame and reinforced concrete configured by suspending and supporting a ceiling portion and supporting members supported on both side wall portions of a reinforcing ridge protruding downward from the deck plate, a lower surface of an upper floor side floor portion Further, the present invention relates to a floor structure of a building in which various kinds of piping equipment such as piping for electrical wiring specifications can be arranged.

[Conventional technology]

In a building with a steel frame or reinforced concrete structure, a deck plate formed by molding a metal steel plate is left on the lower surface of the upper floor to suspend the ceiling of the lower floor by this deck plate. As a support structure,
Conventionally, the structure shown in FIG. 4 and FIG. 6 has been proposed.

FIG. 4 is a cross-sectional view schematically showing a general structure of a ceiling suspension supporting structure in a building having a conventional steel frame or reinforced concrete structure, and FIGS. 5 (a) and 5 (b) are applied to the same suspension supporting structure. FIG. 3 is a perspective view and a sectional explanatory view showing a deck plate made of a metal steel plate taken out.

In these FIGS. 4 and 5, the deck plate (1) that also serves as a concrete form plate (hereinafter, also simply referred to as a form plate) is formed by forming a metal steel plate so that the deck plates are mutually formed along the longitudinal direction. Engagement portion which is formed by folding a plurality of reinforcing ridge portions (2) downward in a parallel manner so as to form a triangular cross section in a parallel manner, and which can be attached to both side portions in the longitudinal direction between adjacent portions. (3) and (4) are flat parts (5),
(5) are provided respectively.

Then, when constructing a building, both members (7), (7) such as a I-shaped steel horizontally extended from a concrete main pillar portion (6) including a steel frame and a reinforcing bar and vertically laid.
The flat parts (5), (5) at both ends of the metal steel plate deck plate (1) are hooked and locked to each other, and the engaging parts (3), (4) on both sides adjacent to each other. ) Are attached to each other and laid, and this deck plate (1) is used as a part of the floor formwork as a concrete formwork, and reinforcing bars and the like are also appropriately provided on the upper side of the deck plate (1). After arranging the concrete, concrete is poured to form the concrete skeleton portion such as the wall portion (8) and the floor portion (9).

The deck plate (1) is left on the lower surface of the floor portion (9), and a plurality of support bolts (10) are attached to the remaining deck plate (1) when the interior is installed thereafter.
Is welded and hung at the upper end portion, and the ceiling portion (11) is supported by each of these support bolts (10).

In the conventional floor structure configured by leaving the deck plate (1) on the lower surface side as described above, the floor portion (9) of the upper floor portion constituting the concrete skeleton portion and the floor portion (9) suspended from this floor portion (9). When arranging piping equipment for electrical wiring and other various piping equipment for the purpose of water supply, gas supply, etc. between the ceiling part (11) on the lower floor that is supported below, Like the part (11), the required upper parts of the deck plate (1) are welded and suspended from the deck plate (1) to support the required parts of these various pipes.
Alternatively, each of the required parts of these various pipes is individually supported by a large number of support bolts or the like that are appropriately sandwiched and attached to the reinforcing ridges (2) protrudingly provided on the lower surface of the deck plate (1). It is common to do so.

[Problems to be Solved by the Invention]

However, in the configuration of the above various conventional piping equipment, in the case of the supporting means using each support bolt suspended from the deck plate (1), the deck plate (1) is
It is necessary to position and weld each individual support bolt and the like, and then individually support each required part of each pipe by these respective support bolts.

Therefore, the arrangement structure of the piping equipment becomes extremely complicated, and
The arrangement work itself is extremely difficult and requires skill.

Also, in the case of a supporting means using support bolts or the like that are mounted so as to sandwich the reinforcing ribs (2) protruding from the lower surface of the deck plate (1), the reinforcing ribs ( 2)
In comparison with the former welding, in that each support bolt and the like are clamped to each other, even though the position setting and mounting are easier, the arrangement structure is complicated and the work is difficult. Moreover, there is a problem in that the attachment by such sandwiching may cause the attachment to fall off.

This problem was completely the same even in the case of the floor structure in which the deck plate on the lower surface of the floor on the upper floor side is exposed.

Further, Japanese Utility Model Laid-Open No. 62-103912 discloses a structure in which a pair of supporting members are fixedly attached between deck plates and various pipes are supported by the supporting members. Since it is a method of holding the ridge of the bracket with a holding metal fitting, it is difficult to determine the position of the metal fitting until it is bolted, and it is not possible to temporarily install it or it is extremely unstable. There was room for improvement from the point of view of the work to be performed while looking up. There is also a problem in that it is difficult for a single person to work independently from the above-mentioned point of work.

Further, in the floor duct shown in Japanese Utility Model No. 61-88423, a through hole is formed in the rib of the deck plate,
Although a structure in which the hook of the hook bolt is engaged with the through hole is disclosed, since the flange of the long duct is configured to be held only by the hook bolt and the nut, the above Japanese Utility Model Laid-Open No. 62-103912 discloses. It was apparent that the workability was even worse than that described.

The present invention is intended to improve such problems in the related art, and by combining a deck plate made of a metal steel plate left on the lower surface of the upper floor with a supporting member having a simple structure, (EN) Provided is a floor structure of a building which is stable and can be easily worked by one person.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, a floor structure of a building according to the present invention is a deck plate made of a metal steel plate having a plurality of reinforcing ridges that are parallel to each other along the longitudinal direction and are folded downward. In a floor structure comprising a concrete floor structure which is provided by leaving the deck plate on the lower surface of the floor part, and a supporting member which is supported on both side wall parts of a reinforcing ridge part protruding downward from the deck plate, Upper side hooks having a predetermined width for engaging the engaging elongated holes with the engaging elongated holes formed on both side walls of the reinforcing ridges and facing each other at appropriate intervals. In addition to the above, a set of supporting members is provided that partially abuts on the bottom wall and is fixed, and the supporting members of each set are hooked to the respective locking elongated holes to directly or indirectly connect various pipes. Floor of a building characterized by being supported It is an elephant.

[Action]

Therefore, according to the present invention, the locking elongated holes that oppose each other at appropriate intervals are formed on both side wall portions of the respective reinforcing ridges protruding downward from the deck plate made of the metal steel plate left on the lower surface of the floor. And has an upper hook portion having a predetermined width for hooking each locking elongated hole from the outside,
One set of support members that abut on a part of the bottom wall and are fixed to each other is provided, and the support members of each set are hooked to each locking long hole to directly or indirectly support various pipes. Therefore, since extremely strong attachment and fixing can be performed, various pipes can be directly or indirectly supported with sufficient strength maintained by the support members of each set.

Further, since the engagement elongated hole having a predetermined size and the upper hook portion having a predetermined width can be easily engaged with each other, the workability can be performed as a single work in a high place by a single person.

〔Example〕

Hereinafter, for the example of the floor structure of the building according to the present invention,
This will be described in detail with reference to FIGS. 1 to 3.

1 (a) and 1 (b) are cross-sectional views schematically showing a schematic structure of a floor structure in a building having a steel frame and a reinforced concrete structure to which different embodiments of the present invention are applied, respectively, and FIG. ) And (b) are partial perspective views and partial cross-sectional views showing a main part of a deck plate made of a metal steel plate applied to the same floor structure and an example of a fixed state of a set of supporting members, showing a main part thereof. The figure is a partial cross-sectional view showing a main part of another example of the same fixed state.

In FIG. 1 and FIG. 2, the deck plate (21) which also serves as a concrete form plate is formed by processing a metal steel plate and has a triangular cross section downward in a manner parallel to each other along the longitudinal direction. A plurality of reinforcing protrusions (22) are folded so as to form, and engaging portions (23) and (24) which can be engaged with each other are formed on both sides in the longitudinal direction. In addition, in the case of this embodiment, in order to effectively retain the overall strength and the like, both end portions are left unflattened, and the side wall portion (22a) of each of the reinforcing ridges (22). , (22b) at predetermined positions, with locking holes (25b) facing each other at an appropriate interval.
A) and (25b) are opened.

The deck plate (21) formed in this manner is used for a part of a floor part formwork as a concrete formwork, as in the above-mentioned conventional example. 31), and the lower floor ceiling part (32) is appropriately suspended and supported by the deck plate (21) left on the lower surface of the upper floor (31). In the case of the embodiment, it has been omitted because it has no direct relation to it).

The side wall portions (22a), (22b) and the bottom wall portion (22) of each of the reinforcing ridges (22) of the deck plate (21).
c) and locking long holes (25a) and (25b) which are formed to penetrate through both side wall portions (22a) and (22b) of the supporting members (41), respectively. It is fastened to
Various types of pipes (6
1) is supported directly or indirectly.

Regarding the attachment of the support member (41), one set of support members (41) each provided with upper hooks (43), (47) having a predetermined width are attached to both sides of the deck plate (21) as described later. At least a part of the locking elongated holes (25a) and (25b) formed opposite to the wall portions (22a) and (22b) is brought into contact with the bottom wall portion (22c) while being hooked from the outside. It is fixed in the same way.

Hereinafter, a more specific configuration of the attachment of one set of support members (41) to each of the reinforcing ridges (22) and the support of various pipes (61) by the support members (41) will be described. .

That is, in the case of the embodiment configuration shown in FIGS. 2A and 2B, the pair of support members (41) has a predetermined size corresponding to the size of the locking elongated hole (25a). A hanging part (44) extending downward from the upper hook part (43) and a pipe support part (45) bent in the lateral direction. Main support piece formed (42)
Similarly, it has an upper hook portion (47) having a predetermined width corresponding to the size of the locking elongated hole (25b), and extends downward from the upper hook portion (47) and bends. Abutting part (4
8) and a sub-supporting piece (46) each having a mounting portion (49) bent downward.

In order to attach and fasten the pair of support members (41) to the reinforcing ridge (22) according to this structure, first, one locking long hole ((a) formed in one side wall (22a)). The upper hook portion (43) of the main support piece (42) is hooked from the outside to the side wall portion (22a) of the main support piece (42).

Next, in the state where the upper hook portion (47) of the sub-supporting piece (46) is hooked from the outside into the other locking elongated hole (25b) opened in the other side wall portion (22b), Along the side wall portion (22b) and the contact portion (48) against the bottom wall portion (22c) to serve as a fulcrum for engagement, and further, the hanging portion of the main support piece (42). The mounting portion (49) of the sub-supporting piece (46) is fixed to the (44) with bolts and nuts (50).

When this fastening mode is adopted, the side wall portions (22a), (22b)
The upper hooks (4) for the locking elongated holes (25a), (25b)
3), (47) hooking, fulcrum abutment of the abutment part (48) to the bottom wall part (22c), and fixing of the suspension part (44) and the attachment part (49) to each other. By the action, it is possible to perform extremely strong mounting and fixing without fear of falling out.

Therefore, in this state, the pipe (61), that is, the electrical wiring cable (62) is directly attached to the pipe support portion (45) formed on the main support piece (42) or the pillow member (63), for example, this In this case, it can be indirectly supported via the cable rack (64). At this time, multiple cables (62)
Cable racks (64)
It is preferable that the recesses (64a) for preventing movement be individually formed on the top.

Further, in order to use the main supporting piece (42) and force the adjacent reinforcing ridges (22), (22), one set thereof is replaced with the pipe supporting part (45), and the pair is shown in FIG. As shown in (a) and (b), the supporting shelf members (51) are connected to each other, and the supporting shelf members (51) are connected.
Similarly to the above, the cable (62) may be supported directly or indirectly via the cable rack (63). Then, in this state, when one of the main supporting pieces (42) is fixed by the sub supporting piece (46), it can be used in a mode shown in FIG. 1 (a),
Further, when both the main supporting pieces (42) are fixed by the sub supporting pieces (46), they can be used in the mode shown in FIG. 1 (b).

Further, as shown in FIG. 3, the pair of support members (4
As another form of 1), a main support piece (42) and a sub-support piece (46)
The contact portions (48a) and (48b) may be formed on the and, respectively, and the main supporting piece (42) and the hanging portion (44) may be provided with hanging bolts (52) for supporting the cable.

In the configuration of the above embodiment, the deck plate (2
The case where each of the reinforcing ridges (22) in 1) is formed to have a triangular cross-section downward is described, but the cross-sectional shape is not necessarily limited to this, and a pair of support Any cross-sectional shape can be adopted as long as the member (41) can be attached in the same fastening manner as described above.

In addition, in this embodiment, the lower floor side ceiling portion (32) is suspended and supported by the metal steel plate deck plate (21) left on the lower surface of the upper floor side floor portion (31), and these Floor (31)
The case where various pipes (61) are supported between the ceiling and the ceiling (32) has been described, but the metal steel plate deck plate (21) is left exposed on the lower surface of the upper floor (31). Of course, the present invention can be applied to the case where various pipes (61) are supported on the lower surface of the floor (31), and in each of these cases, similar actions and effects can be obtained.

〔The invention's effect〕

As described above in detail, according to the invention described in claim 1, the engaging elongated holes facing each other are formed in both side wall portions of the reinforcing ridge portion at appropriate intervals. The locking elongated hole has an upper hook portion having a predetermined width for hooking from the outside, and one set of support members for abutting and fixing a part of the upper wall portion to the bottom wall portion are provided. Since the supporting member is hooked to each locking elongated hole to directly or indirectly support the various pipes, in this fastening mode, each upper hook part is hooked to the locking elongated hole of each side wall part. , A single worker can easily and easily perform extremely strong attachment and fixing by the fulcrum abutment of the abutment part on the bottom wall part and the cooperative action by the integration of the set of supporting members themselves. You can

Furthermore, the above-mentioned configuration can completely eliminate the risk of the supporting members of each set coming off, and the supporting members of each set enable effective support of various pipes in any direct or indirect manner. Therefore, it is possible to sufficiently simplify the arrangement structure of the piping equipment, ensure the certainty, and significantly improve the workability.

Further, according to the invention described in claim 2, with respect to the pair of support members, the upper hook portion is hooked from the outside to the locking elongated hole opened in one side wall portion of the reinforcing ridge portion. And a main supporting piece extending downward from the upper hook portion to form a pipe supporting portion, and a locking long hole opened on the other side wall portion of the reinforcing ridge portion to be hooked from the outside. An upper hook part to be provided, and an abutting part that extends downward from the upper hook part and is bent to come into contact with the bottom wall part, and a mounting part that is fixed to the main support piece with a bolt or a nut. By using the formed auxiliary support piece, it is possible to more firmly secure the attachment and fastening of each set of support members to each reinforcing ridge of the deck plate.

Further, according to the invention described in claim 3, with respect to the pair of support members, an upper hook portion which is hooked from the outside to a locking elongated hole opened in one side wall portion of the reinforcing ridge is provided. The main support piece provided with the abutment portion that extends downward from the upper hook portion and is bent to abut against the bottom wall portion, and the main support piece that forms the pipe support portion, and the other side wall portion of the reinforcing ridge portion. An abutting portion having an upper hook portion hooked from the outside in the opened locking elongated hole, extending downward from the upper hook portion and bent, and abutting the bottom wall portion; In addition to the above advantages, the main support piece and the sub-support piece can be made to be symmetrically symmetrical, so that the main support piece and the sub-support piece formed with mounting parts fixed by bolts and nuts can be made symmetrical. It can be easily manufactured.

Furthermore, as described in claim 4 or 5, one set of supporting portions is respectively fixed to the reinforcing ridges adjacent to each other, or one of the reinforcing ridges adjacent to each other. By fixing one set of support members to the other reinforcing ridge, the main support piece of the support member is hooked, and by connecting these two support members with a support shelf member,
It is possible to satisfactorily and effectively stabilize the fixed state of each pair of supporting members and the support of various piping equipment.

[Brief description of drawings]

1 (a) and 1 (b) are cross-sectional views schematically showing a schematic structure of a floor structure in a building having a steel frame and a reinforced concrete structure to which different embodiments of the present invention are applied, respectively, and FIG. ) And (b) are partial perspective views and partial cross-sectional views showing a main part of a deck plate made of a metal steel plate applied to the same floor structure and an example of a fixed state of a set of supporting members, showing a main part thereof. FIG. 4 is a partial cross-sectional view showing the main part of another example of the fastening state shown in the same as above, and FIG. 4 is a schematic view showing a schematic structure of a conventional ceiling support structure in a building with a steel frame or reinforced concrete structure. Sectional views, and FIGS. 5 (a) and 5 (b) are respectively a perspective view and a cross-sectional explanatory view showing a deck plate made of a metal steel plate applied to the same hanging support structure. (21) ... Deck plate (22) ... Reinforcing ridges (22a), (22b), (22c) ... Side wall, bottom wall (23), (24) ... Engagement (25a), (25b )… Long locking hole (31)… Upper floor side floor (32)… Lower floor ceiling (41)… A set of support members (42)… Main support piece (43)… Upper hook (44) … Suspension part (45)… Pipe support part (46)… Sub support part (47)… Upper hook part (48), (48a), (48b)… Abutment part (49)… Mounting part (50)… Bolt・ Nuts (51)… Support shelf members (52)… Suspension bolts (61)… Various pipes (cables for electrical wiring (62)) (63)… Pillow members (cable rack (64))

Claims (5)

[Claims] 1. A structure is provided in which a plurality of reinforcing ridges parallel to each other along the longitudinal direction are folded downward to form a metal steel plate deck plate, and the deck plate is left on the lower surface of the floor part. In the floor structure consisting of a concrete floor structure and a supporting member supported on both side wall portions of a reinforcing ridge protruding downward from the deck plate, an appropriate gap is provided on both side wall portions of the reinforcing ridge. Each of the locking elongated holes facing each other at a distance is opened, and each locking elongated hole has an upper hook portion having a predetermined width for hooking from the outside, and a part of the locking elongated hole is brought into contact with the bottom wall portion. The floor of a building is characterized in that each set of supporting members that are fastened to each other is provided, and the supporting members of each of these sets are hooked into the respective locking elongated holes to directly or indirectly support various pipes. Construction. 2. A pair of supporting members has an upper hook portion which is hooked from the outside into a locking elongated hole opened in one side wall portion of the reinforcing ridge portion, and the upper hook portion. A main support piece that extends downward from the pipe forming a pipe support portion, and an upper hook portion that is hooked from the outside to a locking long hole that is opened in the other side wall portion of the reinforcing ridge portion, Also, from the abutting portion that extends downward from the upper hook portion and is bent to abut against the bottom wall portion, and the sub-supporting piece in which a mounting portion fixed to the main supporting piece with a bolt or nut is formed. The floor structure of a building according to claim 1, wherein: 3. A pair of supporting members has an upper hook part that is hooked from the outside into a locking elongated hole formed in one side wall part of the reinforcing ridge part, and this upper hook part. A main contact piece that extends downwardly from the bottom wall and abuts against the bottom wall, and a main support piece that forms a pipe support, and an elongated locking hole that is opened in the other side wall of the reinforcing ridge. Has an upper hook part that is hooked from the outside, and extends downward from the upper hook part and is bent to come into contact with the bottom wall part, and the main support piece includes bolts and nuts, etc. The floor structure for a building according to claim 1, further comprising a sub-supporting piece having a mounting portion fixed by the sub-supporting piece. 4. Reinforcing ridges adjacent to each other are fixed to a pair of supporting members, and both supporting members are connected by a supporting shelf member, and on this supporting shelf member,
The floor structure of a building according to any one of claims 1 to 3, wherein various pipes are supported directly or indirectly via a pillow member. 5. A pair of supporting members are fixed to one reinforcing ridge portion adjacent to each other, and a main supporting piece of the supporting member is hooked to the other reinforcing ridge portion. The support members are connected to each other by a support shelf member, and various pipes are directly supported on the support shelf member or indirectly via a pillow member. Building floor structure.