JP6117748B2 - Floor structure and floor panel - Google Patents

Description

  The present invention relates to a floor structure and a floor panel that can be applied to a building mainly composed of a steel frame structure, and more particularly to a floor structure and a floor panel that are effective in improving the rigidity of a floor construction surface and reducing heavy floor impact noise.

  The dry floor structure adopted in conventional steel frame construction methods (including steel-based prefabricated construction methods mainly consisting of lightweight steel frames) is the top of floor beams facing each other with a predetermined inter-beam distance. Further, a floor structure in which a floor slab composed of an ALC (foamed lightweight concrete) plate or the like is bridged and an end of the floor slab is fixed to a floor beam by a metal fitting or the like is well known (for example, Patent Documents 1 and 2). . On these floor slabs, appropriate floor base materials and floor finishing materials are laid.

  In addition, as a technical means for effectively reducing heavy floor impact sound in such a floor structure, Patent Document 3 discloses a rigid neutral plate made of a steel plate or the like at an adjacent position between floor slabs bridged between floor beams. Has been proposed, and a damping member made of a viscoelastic body or the like is interposed between the rigid neutral plate and the end face of the floor slab.

  Further, in the patent document 4, the present applicant also provides a space between the floor slabs bridged between the floor beams and dares the floor slab and the floor beams to be in an unfixed state. Proposed to reduce.

  Both of the technical means disclosed in Patent Documents 3 and 4 deliberately lower the integrity of the floor and limit the vibration range of the floor so that the impact applied to one floor slab does not propagate to the adjacent floor slab. By doing so, it can be understood that it was intended to improve the sound insulation performance particularly in the low frequency range.

Japanese Utility Model Publication No. 64-36412 JP 7-54423 A JP-A-2-210138 JP 2001-65098 A

  In the conventional floor structure, the frame structure that supports the floor slab, that is, the horizontal structure surrounded by horizontal members such as floor beams and girders is hereinafter referred to as “floor structure surface”. In the floor structures disclosed in Patent Documents 3 and 4, the floor slab made of an ALC plate or the like and the floor construction surface are not firmly bonded, so that the horizontal force acting on the floor construction surface is borne on the floor slab. I can't. Therefore, in these floor structures, the “rigid floor assumption” in the structural calculation is usually established by attaching horizontal braces to the floor construction surface to improve the horizontal plane rigidity.

  However, since the horizontal brace is attached in an X shape on the lower side of the floor slab (in many cases, the position below the floor beams and girders constituting the floor construction surface), various pipes are installed below the floor slab. It tends to be a hindrance when routing and wiring or attaching a sound absorbing material or the like, and it takes time and effort to bind and adjust the horizontal brace itself.

  The present invention has been made in view of such circumstances, and in a dry floor structure in which a floor slab is bridged between floor beams, sufficient horizontal plane rigidity can be obtained even if horizontal braces are omitted, and a heavy floor We propose a floor structure and floor panel that can ensure practical sound insulation performance for impact sound.

In order to achieve the above object, the floor structure of the present invention employs a structure in which a plurality of floor slabs are mounted on a floor construction surface including at least a pair of floor beams arranged to face each other with a gap therebetween. In the floor structure in which the floor base material is laid on these floor slabs, the floor slab installation part formed in a flat shape with a uniform thickness and formed to have higher rigidity than the floor slab installation part A steel plate stiffening surface material provided in a plurality of locations so that the floor slab non-installed portions are parallel to each other and alternately continuous is placed on the pair of floor beams and the floor The floor slab is fixed to the beam, and is mounted on the floor slab installation portion of the stiffening surface material so as to be separated from each other with the floor slab non-installation portion between the floor slabs. And fixed to the stiffening face material or the floor beam.

  In this invention, the floor beam constituting the floor construction surface may be made of a laminated material, a composite member of the steel frame and the laminated material, or the like in addition to the steel frame material. In addition, one floor construction surface may be configured by combining different types of members.

  A stiffening surface material is mounted on the pair of floor beams, and the stiffening surface material is fixed to the floor beams, thereby ensuring horizontal rigidity of the floor construction surface. As a means for fixing the stiffening face material to the floor beam, an appropriate coupling means capable of transmitting a horizontal force, such as welding, a screw, a bolt and a nut, a driving rod or the like, can be used.

  In this stiffening surface material, a plurality of portions are provided so that a floor slab installation portion and a floor slab non-installation portion are parallel to each other and alternately continuous. And each floor slab is mounted on each floor slab installation part, and each floor slab is stiffened surface material in a state where adjacent floor slabs are separated from each other by a dimension corresponding to the width of the floor slab non-installation part. Or it is fixed to the floor beam.

  As this floor slab, an ALC plate is practical in terms of cost, weight, strength, workability, etc. In addition to this, a block-shaped block made of various known materials having appropriate strength and sound insulation properties. Panel material can be used. As a means to fix the floor slab to the stiffening surface material or floor beam, it can be by an adhesive, screws, special metal fittings or other mechanical means, but rather than the fixing method between the stiffening surface material and the floor construction surface. It can be simple.

  Then, floor base materials are laid on the upper surfaces of the floor slabs fixed apart from each other so as to cover them entirely, and the floor surface is finished by, for example, laying an appropriate floor finishing material thereon. It is done. The floor base material is a wood-based surface material such as plywood or particle board, or a variety of known floor base materials that are at least spaced from each other and can be placed over a plurality of adjacent floor slabs. The plate-like material can be used as appropriate.

  In this way, the stiffening surface material is fixed by fixing the stiffening surface material to the floor construction surface, and further mounting the floor slab on the floor slab installation portion of the stiffening surface material to hold the stiffening surface material. It is possible to prevent running away from the surface by an external force. As a result, high horizontal rigidity and load bearing strength can be obtained as a whole floor construction surface without a horizontal brace.

  In addition, by separating the adjacent floor slabs from each other, the vibration range of the floor is controlled so that the impact applied to one floor slab does not propagate to the adjacent floor slab, as in the known configuration described in Patent Document 4. It can be limited. Moreover, according to the configuration of the present invention, the impact transmitted downward from the separated portion between the adjacent floor slabs is also blocked by the stiffening surface material that closes the lower surface of the separated portion. Due to these synergistic effects, the performance equivalent to that of the floor structure in which the floor slabs are mounted without gaps can be ensured particularly with respect to the sound insulation performance in the low frequency range.

  Furthermore, by separating the adjacent floor slabs from each other, the total amount of floor slabs to be mounted on one floor construction surface can be reduced as compared with a floor structure in which floor slabs are mounted without gaps. This leads to a reduction in floor slab material costs, transportation costs, and construction labor, and contributes to the improvement of workability.

For stiffened surface materials, bend a single steel plate into a wave shape, or attach a separate steel material having an appropriate height to the upper surface of the steel plate, etc. Can be formed. Thereby, the rigidity of the stiffening face material can be improved with less material cost and processing cost. As a result, even when an excessive horizontal force is applied to the stiffening surface material, the stiffening surface material is unlikely to swell or twist in the out-of-plane direction (vertical direction).

  Furthermore, in the floor structure configured as described above, the present invention provides a separated portion between floor slabs, that is, a floor slab non-installation part of a stiffening surface material, and a floor slab facing the floor slab non-installation part. In addition, a structure in which a sound deadening member is inserted in a space surrounded by a floor base material laid on the floor slab may be employed. In this configuration, the stiffening surface material serves as a receiving material for the sound deadening member. In this way, by closing the separated portion between the floor slabs with the sound deadening member, the magnitude of the impact sound transmitted downward from the separated portion can be further reduced.

  The sound deadening member is preferably one in which a suitable durable and flexible bag is filled with inorganic particles. When a shock vibration is applied, the powder particles act as a counterweight that moves in the opposite direction due to the reaction and cancels the vibration. Basically, powders with a large mass act on strong vibrations and powders with a small mass act on fine vibrations. A silencing effect (damping effect) against impacts (vibrations) with a wide range of properties can be obtained. As such a granular material, specifically, waste tiles, waste brick pulverized materials, and the like can be used particularly suitably.

Further, the floor panel of the present invention includes a frame formed by connecting light-weight shaped steel materials in a rectangular shape, a floor slab installation part formed in a flat shape with a uniform thickness, and a rigidity higher than that of the floor slab installation part. And a stiffening surface material made of a steel plate fixed to the upper surface of the frame body, the floor slab non-installation part formed so as to have a plurality of places so as to be parallel to each other and alternately continuous, and The stiffening surface material or the frame body is mounted on the floor slab installation portion of the stiffening surface material so as to be separated from each other with the floor slab non-installation portion sandwiched between adjacent floor slabs. The floor slab is composed of an ALC plate fixed to the floor, and the floor base material is laid on the floor slab and the separated portion between the floor slabs.

  In this way, by pre-assembling a plurality of types of structural members in a panel shape in advance, fixing the floor construction surface and the stiffening surface material, fixing the stiffening surface material and the floor slab, laying the floor base material, etc. It is possible to greatly save labor on site.

  In addition, a sound deadening is performed in advance in a space surrounded by a floor slab non-installation portion of the stiffening surface material, a floor slab facing the floor slab non-installation portion, and a floor base material laid on the floor slab. By inserting the member, the workability can be further improved.

The floor structure of the present invention configured as described above has a floor slab installation portion formed in a flat shape with a uniform thickness on the floor construction surface, and has higher rigidity than the floor slab installation portion. The stiffening surface material formed alternately with the floor slab non-installation part is fixed, and the floor slab is fixed on the floor slab installation part. The escape of the hard face material in the out-of-plane direction is restricted, and high horizontal rigidity and load bearing strength are obtained . This ensures that it is possible to omit the horizontal brace, easily utilize the inner and lower side of the floor Plane space.

  In addition, since the floor slabs mounted on the stiffening surface material are separated from each other to reduce the integrity of the floor, the impact applied to the floor slab is less likely to propagate laterally. . In addition, since the lower surface of the separated portion between adjacent floor slabs is also closed by the stiffening surface material and the propagation in the vertical direction is blocked, particularly excellent sound insulation performance against heavy floor impact sound can be obtained.

  The separated portion between the floor slabs can be effectively used as a space for various wirings and pipes, but the sound insulation performance can be further improved by inserting a silencer member into this separated portion.

  Further, since the adjacent floor slabs are separated from each other, the total amount of floor slabs mounted on one floor construction surface is reduced as compared with a floor structure in which floor slabs are mounted without gaps. That is, by reducing the width of the floor slab or reducing the number of floor slabs, the material cost, transportation cost and construction labor of the floor slab can be greatly reduced.

It is a disassembled perspective view of the floor structure concerning a 1st embodiment of the present invention. It is a perspective view which shows the assembly | attachment state of the said floor structure. It is a partial side view of the floor structure. It is a disassembled perspective view of the floor structure concerning 2nd Embodiment of this invention. It is a perspective view which shows the assembly | attachment state of the said floor structure. It is a partial side view of the floor structure. It is a partial side view of the floor structure concerning a 3rd embodiment of the present invention. It is a partial side view of the floor structure concerning a 4th embodiment of the present invention. It is a disassembled perspective view which shows embodiment of the floor panel of this invention. It is a perspective view which shows the assembly | attachment state of the said floor panel.

  Embodiments of the present invention will be described below with reference to the drawings.

(Floor structure)
1 to 3 show a floor structure according to a first embodiment of the present invention. The floor structure according to the illustrated embodiment is provided, for example, on a floor structure surface 1 having a substantially rectangular shape in plan view that constitutes a part of a steel structure frame. The floor construction surface 1 is disposed opposite to each other with a long-side floor beam (hereinafter referred to as “large beam”) 2 and 2 that are arranged to face each other at an appropriate interval and at an appropriate interval so as to be orthogonal to them. Are surrounded by floor beams (hereinafter referred to as “small beams”) 3 and 3 in the short side direction. In the illustrated form, the facing distance between the large beams 2 and 2 is set to approximately 2 m, and the facing distance between the small beams 3 and 3 is set to approximately 4 m. Is used. However, the shape and dimensions of the floor construction surface 1 may be modified as appropriate from the illustrated form, and for the large beam 2 and the small beam 3, in addition to the steel frame material (light steel frame or heavy steel frame), for example, laminated material or steel frame A composite member of a material and a laminated material may be used.

  On this floor construction surface 1, a stiffening surface material 4 having a substantially rectangular shape in plan view is placed so as to cover at least a majority region (preferably substantially the whole) of the floor construction surface 1. The stiffening face material 4 is made of a steel plate having a thickness of about 0.8 to 1.5 mm (preferably 1.2 mm is practical), and has a floor slab installation portion 41 having a predetermined width and a floor slab having a predetermined width not installed. The portions 42 are formed so as to be alternately continuous in parallel with each other and along the long side direction of the stiffening face material 4. In the illustrated embodiment, the width of the floor slab installation part 41 is set to about 30 cm, and the width of the floor slab non-installation part 42 is set to about 20 cm. This stiffening surface material 4 is mounted on a pair of large beams 2, and the peripheral portion of the stiffening surface material 4 is welded, screwed, bolted nuts, driving nails to the upper flanges of the large beams 2 and 3. In addition, it fixes using the suitable coupling means which can transmit horizontal force.

  In this way, the floor slab 5 is mounted on the floor slab installation portion 41 of the stiffening surface material 4 fixed to the floor construction surface 1. For the floor slab 5, a block-like panel material made of various known materials having appropriate strength and sound insulation is used. In the illustrated embodiment, it is assumed that an ALC plate is used for the floor panel. However, other than this, for example, a precast concrete plate, an extrusion-molded cement board, and other appropriate cementitious materials may be used as fiber materials or metal wires. Various ceramics-type panels reinforced with, for example, a plate, resin-based panels formed by molding resin concrete, and the like can be used.

  The floor slab 5 is previously formed in a long rectangular shape that matches the width of the floor slab installation part 41 of the stiffening surface material 4, and is placed on the floor slab installation part 41, using means such as an adhesive or a screw. And fixed to the stiffening face material 4 or the large beam 2. As a result, a spacing portion corresponding to the width of the floor slab non-installation portion 42 of the stiffening face material 4 is formed between the adjacent floor slabs 5.

  A floor base material 6 is laid on the floor slab 5 so as to cover the entire upper surface of the floor slab 5 separated from each other, and is fixed to the floor slab 5 using an adhesive, a screw or the like. Various known plate-like materials and sheet-like materials can be used as the floor base material 6, but plywood and particle board are practical in terms of cost, strength, workability, and the like. Further, the floor surface is finished by, for example, stretching an appropriate floor finishing material (not shown) on the floor base material 6.

  In this way, by fixing the stiffening surface material to the floor construction surface, and further mounting the floor slab on the floor slab installation portion 41 of the stiffening surface material and pressing the stiffening surface material, 4 can be prevented from escaping in the out-of-plane direction by an external force (particularly a horizontal force such as an earthquake). As a result, it is possible to obtain high horizontal plane rigidity and load bearing strength as a whole of the floor construction surface 1 and to omit a horizontal brace.

  Further, by separating the adjacent floor slabs 5 and 5 from each other, it is possible to limit the vibration range of the floor so that an impact applied to one floor slab 5 does not propagate to the adjacent floor slab 5. Further, the impact transmitted downward from the separated portion between the adjacent floor slabs 5 and 5 is also blocked by the stiffening surface material 4 that blocks the lower surface of the separated portion. Due to these synergistic effects, it is possible to ensure a preferable sound insulation performance against floor impact sound particularly in a low frequency range.

  Further, by separating the adjacent floor slabs 5 and 5 from each other, the total amount of the floor slab 5 to be mounted on one floor construction surface 1 as compared with the floor structure in which the floor slabs 5 are mounted without gaps. Can be reduced. As a result, it is possible to improve the workability by reducing the material cost, transportation cost and construction labor of the floor slab 5.

  In addition, as shown in FIG. 3, the sound deadening member 7 can be inserted into the space surrounded by the floor slab non-installation portion 42 and the floor base material 6 by using the separated portions of the floor slabs 5 and 5. it can. At this time, the stiffening surface material 4 serves as a receiving material for the sound deadening member 7. As the sound deadening member 7, a material obtained by filling an appropriate bag body with a granular material of an inorganic material such as a waste tile or a pulverized waste brick can be preferably used. Such a granular material acts to counteract vibration by moving in the opposite direction of vibration as a counterweight against shock vibration. Basically, powders with a large mass act on strong vibrations, and powders with a small mass act on fine vibrations, making the shape and size of the particles irregular. As a result, a silencing effect against impacts with a wide range of properties can be obtained. In addition, inorganic materials have the advantage that they are less likely to change over time, have excellent durability, and are easy to reuse during dismantling. In this manner, by closing the separated portion between the floor slabs 5 and 5 with the sound deadening member 7, the magnitude of the impact sound transmitted downward from the separated portion can be further reduced.

  In the floor structure of the present invention, the width dimension of the floor slab 5 (the width of the floor slab installation part 41 in the stiffening surface material 4) and the distance between the floor slabs 5 and 5 (the width of the floor slab non-installation part 42). As for the balance, it may be set flexibly according to the actual size and design module of the floor construction surface 1, the general dimensional standard of each member, and the like. Specifically, for example, assuming a floor slab 5 made of ALC having a thickness of 10 cm, the width of the floor slab 5 is 30 to 60 cm, and the separation distance between the floor slabs 5 and 5 is about 10 to 30 cm. It is practical. If the width of the floor slab 5 itself is at least 30 cm or more, each floor slab 5 cannot exhibit sufficient load bearing strength. Further, if the separation distance is too large with respect to the width of the floor slab 5, it becomes difficult to support the load on the floor foundation material 6 laid on the separation portion, and the thickness of the floor foundation material 6 itself is reduced. You will have to make it bigger than necessary. On the other hand, when the separation distance is too small, the effect of preventing the propagation of the impact sound is impaired and the effect of improving the workability is also reduced. Considering these comprehensively, the separation distance between the floor slabs 5, 5 is equal to or greater than the thickness of the floor slab 5, and the separation distance between the floor slabs 5, 5 does not exceed the width dimension of the floor slab 5. The floor slab 5 is preferably arranged with the balance as a guide. The width dimension of all floor slabs 5 arranged on one floor construction surface 1 and the distance between the floor slabs 5 and 5 do not need to be unified.

  4 to 6 show a floor structure according to the second embodiment of the present invention. The floor structure according to the illustrated embodiment is different from the first embodiment in the configuration of the stiffening surface material 4, but is otherwise the same as in the first embodiment, and thus the description of the common parts is omitted.

  In the stiffening face material 4 in this embodiment, a portion corresponding to the floor slab installation portion 41 of the first embodiment is formed into a flat shape with a uniform thickness, while the floor slab non-installation portion of the first embodiment is used. A portion corresponding to 42 is formed so as to exhibit higher rigidity than the floor slab installation portion 41.

  More specifically, the stiffening face material 4 is made of a steel plate having a thickness of about 0.8 to 1.5 mm (preferably 1.2 mm for practical use). The steel plate is partially bent, The floor slab non-installation part 42 is formed on the upper surface side of the floor slab installation part 41 by raising up and down undulations having a rectangular wave shape (substantially hat shape) in side view at a height of 3 to 4 cm. And similarly to 1st Embodiment, the width | variety of the floor slab installation part 41 is set around 30 cm, the width | variety of the floor slab non-installation part 42 is set around 20 cm, these floor slab installation part 41, the floor slab non-installation part 42, Are formed in parallel with each other and alternately continued along the long side direction of the stiffening face material 4. The stiffening face material 4 is placed on the pair of large beams 2 so as to cover at least a majority region (preferably substantially the whole) of the floor construction surface 1, and the peripheral portion of the stiffening face material 4 is arranged on the large beam 2. Further, it is fixed to the upper flange or the like of the small beam 3 using welding, screws, bolts and nuts, driving rods or other appropriate coupling means capable of transmitting a horizontal force.

  Then, as shown in FIG. 6, the sound deadening member 7 is inserted into the space surrounded by the floor slab non-installation portion 42 and the floor base material 6 using the separated portion between the floor slabs 5 and 5. The configuration of the muffling member 7 is the same as that of the first embodiment.

  FIGS. 7 and 8 are floor structures according to the third and fourth embodiments of the present invention, respectively, and show modifications of the floor slab non-installation portion 42 provided on the stiffening face material 4. In any of these forms, the floor is formed by attaching a steel material separate from the steel plate 40 to the upper surface of the flat steel plate 40 so as to be continuous in the short side direction (depth direction of the paper surface) of the stiffening surface material 4. The plate non-installation part 42 is configured.

  In the third embodiment shown in FIG. 7, a pair of steel materials 43, 43 having an L-shaped cross section are faced to each other and attached to the upper surface of the steel plate 40 to form a stiffening rib. The height of the steel material 43 to be provided is about half of the thickness of the floor slab 5, and the width of the floor slab non-installation portion 42 is slightly narrower than that of the first and second embodiments. The steel material 43 also serves as a positioning guide when the floor slab 5 is mounted on the floor slab installation portion 41.

  In the fourth embodiment shown in FIG. 8, a trapezoidal hat-shaped steel folded plate 44 having projecting pieces on both sides of the lower edge is attached to the upper surface of the steel plate 40 to form the floor slab non-installation portion 42. . The height of the folded plate 44 is aligned with the thickness of the floor slab 5, and the top surface portion of the folded plate 44 also supports the floor base material 6, so that the width of the floor slab non-installation portion 42 is increased accordingly. ing. The top surface portion of the folded plate 44 and the floor base material 6 may be joined by general joining means or may not be joined.

  In addition to these forms, various cross-sectional steel materials having an appropriate height are attached to the flat steel plate 40, or corrugated waves having a suitable height (rectangular wave, trapezoidal wave, triangular wave, The floor slab non-installation part 42 can be formed by bending the undulation of a sine wave or other regular or irregular mountain valley shape. When attaching the steel material 43 or the folded plate 44 to the steel plate 40, welding, screws, bolts and nuts, driving rods, or other appropriate coupling means capable of transmitting a horizontal force can be used. Further, in an appropriate space (for example, a space surrounded by an imaginary line in FIGS. 7 and 8) provided in a separated portion between the floor slabs 5 and 5, the sound deadening member 7 is the same as in the first and second embodiments. Can be charged.

  Also, the floor slab installation portion 41 is not shown in the figure, but it is rigid by forming small ribs and embosses that do not hinder the placement of the floor slab 5 or by superposing steel strips. You may make it raise. In that case, it is preferable to form irregularities or the like according to the surface shape of the floor slab installation portion 41 on the bottom surface of the floor slab 5.

(Floor panel)
9 and 10 show an embodiment of the floor panel 10 of the present invention. The floor panel 10 according to the illustrated embodiment is assembled to, for example, a floor construction surface (not shown) constituting a part of a steel structure housing, and has a rectangular frame body 20 in plan view and a frame body 20. A fixed stiffening surface material 4, a floor slab 5 fixed on the stiffening surface material 4, and a floor base material 6 laid on the floor slab 5 are provided.

  The frame 20 is formed by, for example, connecting a pair of long and short lightweight steel materials having a groove-shaped cross section in a rectangular shape with the opening side of the groove-shaped cross section facing inward. The four corners of the frame 20 are fixed using welding, screws, bolts and nuts, driving rods, or other means. The size of the frame 20 according to the illustrated embodiment is about 4 m for the long side and about 2 m for the short side. However, the shape and dimensions of the frame 20 may be slightly modified from the illustrated embodiment. Further, as the lightweight steel material constituting the frame body 20, an H-shaped cross section, an L-shaped cross section, a square closed cross section and other members may be used.

  As with the stiffening surface material 4 constituting the floor structure described above, the stiffening surface material 4 includes a floor slab installation portion 41 having a predetermined width and a floor slab non-installation portion 42 having a predetermined width arranged in parallel with each other. It is constituted as a continuous thing. In the illustrated embodiment, the floor slab installation part 41 and the floor slab non-installation part 42 are formed by partially bending a flat steel plate having a thickness of about 1.2 mm to form undulations for increasing rigidity. Has been. The width of the floor slab installation part 41 according to the exemplary embodiment is about 30 cm, the width of the floor slab non-installation part 42 is about 20 cm, and the floor slab non-installation part 42 has a 3 to 4 cm height in the form of a rectangular wave in side view. About three places are set up on the upper surface side of the floor slab installation section 41. The stiffening face material 4 is mounted on the frame body 20 so as to cover substantially the entire frame body 20, and the periphery of the stiffening face material 4 is welded to the frame body 20 with screws, screws, bolts and nuts, It is fixed using a driving rod or other appropriate coupling means capable of transmitting a horizontal force.

  The floor slab 5 is made of, for example, an ALC plate, and is formed in advance in a long rectangular shape in accordance with the width of the floor slab installation portion 41 of the stiffening face material 4 and is placed on the floor slab installation portion 41 so that an adhesive or It is fixed to the stiffening face material 4 or the frame body 20 by means such as screws. A space portion corresponding to the width of the floor slab non-installation portion 42 is formed between the adjacent floor slabs 5.

  The floor base material 6 is made of, for example, particle board or plywood, and is laid on the floor slab 5 so as to cover the entire upper surface of the floor slab 5 separated from each other, and is attached to the floor slab 5 using an adhesive or a screw. Fixed.

  Further, although not shown in the figure, the sound deadening member 7 is inserted into the gap using the separated portions of the floor slabs 5 and 5 as in the above-described floor structure.

  In this way, by bringing the floor panel 10 that has been pre-framed into the construction site and assembling the floor panel 10 to the housing, a floor structure having excellent rigidity and sound insulation can be efficiently constructed.

1 Floor construction 2 Large beam (floor beam)
3 Beam 4 Stiffened surface material 41 Floor slab installation part 42 Floor slab non-installation part 43 Steel material 44 Folded plate 5 Floor slab 6 Floor base material 7 Silencer member 10 Floor panel 20 Frame

Claims (6)

In a floor structure in which a plurality of floor slabs are mounted on a floor construction surface including at least a pair of floor beams arranged to face each other at intervals, and a floor base material is laid on the floor slabs,
A floor slab installation part formed in a flat shape with a uniform thickness and a floor slab non-installation part formed so as to have higher rigidity than the floor slab installation part are mutually parallel and alternately continuous. The steel plate stiffening face material provided in a plurality of places as described above is mounted on the pair of floor beams and fixed to the floor beams,
The floor slab is mounted on the floor slab installation portion of the stiffening surface material so as to be spaced apart from each other with the floor slab non-installation portion between the floor slabs. A floor structure fixed to a face material or the floor beam. The floor structure according to claim 1 ,
The floor slab non-installation part is formed by bending the steel plate into a wave shape. The floor structure according to claim 1 ,
The floor structure in which the floor slab non-installation part is formed by attaching a steel material having an appropriate height to the upper surface of the steel plate. In the floor structure according to any one of claims 1 to 3 ,
A silencing member is provided in a space surrounded by a floor slab non-installation portion of the stiffening surface material, a floor slab facing the floor slab non-installation portion, and a floor base material laid on the floor slab. Floor structure characterized by being charged. A frame formed by connecting lightweight steel members into a rectangular shape;
A floor slab installation part formed in a flat shape with a uniform thickness and a floor slab non-installation part formed so as to have higher rigidity than the floor slab installation part are mutually parallel and alternately continuous. A stiffening face plate made of steel plate provided on a plurality of places and fixed on the frame body,
The stiffening surface material or the frame is mounted on the floor slab installation portion of the stiffening surface material so as to be separated from each other with the floor slab non-installation portion sandwiched between adjacent floor slabs. A floor slab consisting of an ALC plate fixed to the body;
A floor base material laid on the floor slab and a spaced portion between the floor slabs;
A floor panel characterized by comprising: The floor panel according to claim 5 ,
A silencing member is provided in a space surrounded by a floor slab non-installation portion of the stiffening surface material, a floor slab facing the floor slab non-installation portion, and a floor base material laid on the floor slab. Floor panels characterized by being loaded.

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