JP2006348586A - Slab panel and floor structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slab panel and a floor structure capable of adjusting panel strength and sound insulating performance, easy in construction, and capable of minimizing a floor surface level, by enhancing a degree of freedom of design. <P>SOLUTION: This slab panel is formed by embedding a reinforcing member 3 in a concrete base material 2. A cutout part 12 is formed in an end lower part of the concrete base material, and an overhang part 13 overhanging to the side is arranged. An under surface 14 of the overhang part 13 is received by a reinforcing receiving piece 23, and an installation part 17 arranged on a floor beam 15 is formed. The reinforcing receiving piece 23 and the reinforcing member 3 are integrally fixed by welding. The installation part 13 is arranged on the floor beams 15 via an elastic support member 26. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a slab panel and a floor structure that can be used as a flooring material, for example.

  For floor structures, precast concrete panels and cast-in-place concrete are used together to form composite slabs, and ALC (lightweight foamed concrete) panels and perforated precast plates are used directly to beams (floor beams). May be placed directly on.

  In the case of using the above synthetic slab, there are drawbacks in that it is possible to freely design, the labor of joining columns and beams, the integrity of the panel and concrete are easily lost, and further, the work period becomes longer due to the need for a concrete curing period. There are disadvantages such as. In addition, in the case of direct placement, construction is easy, but because it is placed directly on the beam, if it is attempted to ensure panel strength and sound insulation performance, the thickness cannot be reduced and the floor level is reduced. It had the disadvantage of becoming taller and narrowing the indoor space.

  Therefore, in recent years, a floor structure has been proposed in which an elastic support member is interposed between a floor material and a floor beam while suppressing a floor surface level to improve sound insulation performance (for example, Patent Document 1). reference). In this floor structure, as shown in FIG. 13, a plurality of rectangular flat plate ALC panels 81 are arranged in parallel so that their long side end faces are in contact with each other, and are connected by a connecting member 82. Assembled. That is, a notch (counterbore) 83 is provided at a corner where the short side end face and the back surface of each panel 81 intersect, and the connecting member 82 is fitted into the notch 83. In this case, the connecting member 82 is made of an angle material (L-shaped angle material), and its horizontal piece 82a abuts against the bottom surface (horizontal cutout surface of the notch) 83 of the counterbore 83, and its vertical piece 82b It contacts the end face 86 of the panel 81. And the horizontal piece part 82a and the bottom face 85, the vertical piece part 82b, and the end surface 86 are each adhere | attached.

For this reason, a storage portion 88 that accommodates the elastic support member 87 is formed on the short side of the panel 81, and is disposed on the floor beam 89 via the elastic support member 87 disposed in the storage portion 88. As a result, the sound insulation performance is improved while suppressing the floor level.
JP 2004-3283 A

  That is, in the conventional floor structure as described above, a thin projection (projecting portion) projecting sideways is formed at the end of the panel 81, and a load is applied to the thin projecting portion. Further, the connecting member 82 is merely bonded to the panel 81 and does not constitute a reinforcing material for the overhanging portion. For this reason, the load acting on the overhanging portion may cause a shear failure at the base portion of the overhanging portion to generate a crack, resulting in poor durability.

  The present invention has been made to solve the above-mentioned conventional drawbacks, and its purpose is to increase the degree of freedom in design, to adjust panel strength and sound insulation performance, and to be easy to install. An object of the present invention is to provide a slab panel and a floor structure that can keep the floor level low.

  In order to solve the above-mentioned problems, a slab panel according to the present invention is a slab panel in which a reinforcing member 3 is embedded in a concrete base material 2, and a notch 12 is formed at the lower end of the concrete base material and stretched laterally. An overhanging portion 13 is provided, and a lower surface 14 of the overhanging portion 13 is received by a reinforcing receiving piece 23 to form an installation portion 17 installed on the floor beam 15, and the reinforcing receiving piece 23 and the reinforcing member 3 is fixed integrally.

  The reinforcing member 3 includes a combination 5 of a plurality of reinforcing bars 4 a embedded in the concrete base 2, or a shape steel 6 in which a part protrudes from the lower surface 2 b of the concrete base 2. It may be equipped with. Further, the reinforcing member 3 has a section steel 6 partially projecting from the lower surface 2 b of the concrete base 2 and a plurality of steel bars 4 joined to the section 4 and embedded in the concrete base 2. It may be composed of the union 5.

  The cutout 12 has a horizontal cutout surface 18 and a vertical cutout surface 19, and the reinforcing receiving piece 23 includes a horizontal piece 20 corresponding to the horizontal cutout surface 18, and the vertical flat cutout. An L-shaped angle member composed of a vertical piece 21 corresponding to the surface 19 is used.

  Further, the reinforcing receiving piece 23 is made of a flat plate material, and the reinforcing receiving piece 23 is fixed to the combined body 5 of the reinforcing member 3.

  The reinforcing receiving piece 23 is made of a flat plate material, and the shape steel can be made of a hat-shaped steel in which the pair of flanges 8 and 8 are embedded in the concrete base material 2. A reinforcing receiving piece 23 is fixed to a pair of flanges 8 and 8 of the shape steel. Further, when the reinforcing receiving piece 23 is made of an L-shaped angle member, the horizontal piece 20 of the reinforcing receiving piece 23 is fixed to the combined body 5 of the reinforcing member 3, and the vertical piece 21 of the reinforcing receiving piece 23 is used as the shape steel of the reinforcing member 3. It is fixed to 6.

  The reinforcement receiving pieces 23 and 23 and the shape steels 6 and 6 of the reinforcing member 3 constitute a rectangular frame 24.

  Further, the reinforcing receiving piece 23 and the reinforcing member 3 are fixed by welding.

  The floor structure of the present invention is characterized in that the installation portion 17 of the slab panel 1 is disposed on the floor beam 15 via an elastic support member 26.

  In the slab panel of the present invention, since reinforcing members such as reinforcing bars and shaped steel are embedded in the concrete base material, the degree of freedom in design is increased by appropriately adjusting the strength of the reinforcing members, and the rigidity and The sound insulation performance can be adjusted. Moreover, precasting is possible, and construction on site can be facilitated. Also, in this slab panel, the installation part installed on the floor beam is formed by receiving the lower surface of the overhanging part with the reinforcement receiving piece fixed integrally with the reinforcing member in the concrete base material. By arranging the part directly on the floor beam or via an elastic support member or the like, the floor level can be kept low. In addition, the installation portion is excellent in strength and can be used stably without cracks or the like over a long period of time.

  By providing the reinforcing member with a combination of a plurality of reinforcing bars embedded in the concrete base material, the reinforcing member can be easily manufactured and the cost can be reduced to improve the strength of the entire slab panel.

  In addition, by using a shape steel part of which protrudes from the concrete base material as a reinforcing member, it is possible to suppress the occurrence of cracks on the protruding side of the shape steel, making it easy to adjust the bending rigidity and weight, and sound insulation The performance and the like can be improved. In particular, by using a hat-shaped steel, the strength, weight, and composition of the panel can be designed freely according to the shape of the shaped steel, and the fixing position (for example, welding position) of the reinforcement receiving piece (panel from above the floor beam) Thickness) can be determined as intended by the designer.

  In addition, if the reinforcement receiving piece is an L-shaped angle member composed of a horizontal piece corresponding to the horizontal cutout surface and a vertical piece corresponding to the vertical cutout surface, the strength of the installation portion is stabilized. be able to. Furthermore, the reinforcement receiving piece is made of a flat plate material, and the strength of the installation portion can be stabilized by fixing the flat plate material to a combination of reinforcing members.

  By fixing the flange of the hat-shaped steel and the reinforcement receiving piece of the flat plate material, it is possible to simplify the fixing work, and it can be firmly fixed, resulting in an excellent slab panel. .

  When the reinforcing receiving piece is made of an L-shaped angle member, the horizontal piece of the reinforcing receiving piece is fixed to the combination of the reinforcing members, or the vertical piece of the reinforcing receiving piece is fixed to the shape steel of the reinforcing member. The piece and the reinforcing member can be reliably fixed.

  Since the rectangular frame body is constituted by the reinforcement receiving piece and the shape steel of the reinforcing member, the rigidity of the rectangular frame body is large, and the strength of the slab panel can be made extremely excellent.

  Since the reinforcing receiving piece and the reinforcing member are fixed by welding, the fixing state is stabilized and the fixing operation can be shortened.

  In the floor structure of the present invention, since the installation portion is arranged on the floor beam via the elastic support member, the height dimension from the floor beam does not increase even if the elastic support member is arranged, and this slab panel The floor structure used can be made compact, and the floor impact sound can be reduced by this elastic support member, resulting in high quality. That is, it is possible to freely dispose an elastic support member that effectively uses the space of the notch and reduces floor impact sound.

  Next, specific embodiments of the slab panel and floor structure of the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional view of a slab panel, and FIG. 2 is a perspective view. This slab panel 1 is mainly used as a flooring material of a building upper floor, and a reinforcing member 3 is embedded in a concrete base material 2. This concrete base material 2 is formed in, for example, a rectangular shape having a length (long side) of about 2000 mm, a width (short side) of about 500 mm, and a thickness of 50 to 100 mm, and its air-dry specific gravity is, for example, 1.1 to 2.0. In addition, the magnitude | size, shape, and air-dry specific gravity of the concrete base material 2 are not limited to this, It can change suitably according to various situations.

  The reinforcing member 3 is composed of a combined body 5 in which a plurality of steel bars 4 are integrated in a lattice shape via welding, and a pair of structural steels 6 and 6 integrated with the combined body 5 by welding. In this case, the combined body 5 is disposed over almost the entire concrete base material 2 and embedded in the concrete base material 2. That is, the long side of the combined body 5 is set slightly shorter than the long side of the concrete base 2, and the short side of the combined body 5 is set slightly shorter than the short side of the concrete base 2. The steel bar 4 has a diameter smaller than that of a reinforcing bar 4a described later (including a steel bar having a diameter of about 6 mm to 32 mm, including round steel and deformed steel bar), for example, a diameter of about 3 mm. Mesh streaks) 4b.

  As shown in FIG. 3, the shape steel 6 in this case is a hat including a main body portion 7 having a substantially U-shaped cross section and flanges 8, 8 protruding outward from the opening end of the main body portion 7. Shape steel. The main body 7 includes a pair of side pieces 9 and 9 that are parallel to each other, and a bottom piece (connection piece) 10 that the side pieces 9 and 9 are connected to. And the shape steels 6 and 6 are arrange | positioned along the longitudinal direction of the concrete base material 2 at predetermined intervals.

  And the flanges 8 and 8 of a pair of shape steel 6 and 6 are welded to the lower surface side of the combined body 5, the opening part of the shape steel 6 and 6 faces upwards, and the lower part of the main-body parts 7 and 7 is concrete. It protrudes from the lower surface 2 b of the substrate 2. In this case, the shaped steels 6 and 6 are arranged over substantially the entire length in the longitudinal direction of the concrete base material 2, and a part (lower part) of the main body part 7 projects from the lower surface 2 b of the concrete base material 2. .

  By the way, it is preferable to arrange the reinforcing member 3 slightly below the center of the concrete base 2 in the vertical direction (thickness direction), that is, below the neutral shaft. That is, concrete has characteristics such as strong against compression but weak against tension, whereas steel has characteristics such as strong against tension but weak against compression. For this reason, when manufacturing a panel to which a bending load is applied, it is preferable in terms of strength that concrete is disposed on the compression side, that is, the upper surface side of the panel, and steel is disposed on the pulling side, that is, the lower surface side of the panel.

  And in this concrete base material 2, as shown in FIG. 1 and FIG. 2, the overhang | projection part 13 which forms the notch part 12 in the concrete base-material end lower part, and projects to the side is provided, The lower surface 14 is received by the reinforcing receiving piece 23 to form an installation portion 17 installed on the floor beam 15 (see FIGS. 6 and 7). The notch 12 in this case is formed by notching the lower end surface of the concrete base 2 on the short side to a rectangular cross section over the entire short side. For this reason, a horizontal planar cutout surface 18 and a vertical planar cutout surface 19 are formed.

  The reinforcement receiving piece 23 is an L-shaped angle member composed of a horizontal piece 20 corresponding to the horizontal cutout surface 18 (the lower surface 14 of the projecting portion 13) and a vertical piece 21 corresponding to the vertical cutout surface 19. Is configured. In this case, the end surfaces 6a, 6a of the above-mentioned shaped steels 6, 6 are arranged on substantially the same plane as the vertical planar notch surface 19, and the vertical piece 21 of the reinforcing receiving piece 23 is fixed to the end surfaces 6a, 6a by welding. Is done. That is, the reinforcing receiving piece 23 and the reinforcing member 3 are integrally fixed. Moreover, it fixes to the horizontal piece 20 of the reinforcement receiving piece 23 by welding to the steel bar 4 (mesh rebar 4b) corresponding to the horizontal cut surface 18. For this reason, each slab panel 1 is provided with a pair of shape steels 6 and 6 and a pair of reinforcement receiving pieces 23 and 23, and as shown in FIG. 4, the rectangular frame 24 is comprised by these.

  Further, notches 22 are formed in the four corners of the upper surface 2a of the concrete base 2. The notch 22 is for mounting a pressing member 25 (see FIG. 5) for fixing the slab panel 1 to the floor beam 15. For this reason, the side wall 22a of the notch 22 is an inclined surface (tapered surface) that gradually expands upward.

  The plurality of slab panels 1... Configured as described above are installed and fixed at the installation portion 17 to the floor beam 15 via an elastic support member 26 as shown in FIGS. . As shown in FIG. 6, the elastic support member 26 includes a liquid seal mount 27, and as illustrated in FIG. 7, the elastic support member 26 includes a vibration-proof rubber material 28.

  This liquid seal mount 27 is provided with a rubber elastic body, a plurality of liquid chambers filled with viscous fluid, and an orifice passage communicating these liquid chambers in the exterior case 30. In the liquid seal mount 27, when an impact is applied to the slab panel 1, the rubber elastic body is compressively deformed to reduce floor impact sound. In addition, when walking vibration is applied to the floor panel 1, the volume of each liquid chamber changes due to compression deformation of the rubber elastic body, so that the viscous liquid moves between the two liquid chambers through the orifice passage, and is generated at that time. The walking vibration is attenuated by the reaction force of the viscous liquid. That is, walking vibration is suppressed by a damping mechanism including a rubber elastic body, a liquid chamber, and an orifice passage.

  The liquid seal mount 27 is formed in a substantially short cylindrical shape whose height is kept low, and the lateral width seen from the plane is substantially the same as or slightly the lateral width of the upper surface of the upper flange 29 of the floor beam 15. It is getting longer. A fixing bolt 34 that protrudes upward is attached to the upper surface side of the liquid seal mount 27, and a pair of leg bolts 35 and 35 that protrude downward are attached to the lower surface side.

  Further, a bolt through hole (not shown) is provided in the upper flange 29 of the floor beam 15, and leg bolts 35, 35 of the liquid seal mount 27 are inserted into the bolt through hole from above, and the protruding leg bolt 35, Nut members 36 and 36 are screwed to 35. Thus, the liquid seal mount 27 can be attached to the upper flange 29 of the floor beam 15. And fixed to the gap 37 between the installation parts 17 of the four slab panels 1, that is, the corresponding corner parts of the four slab panels 1 (this corner part corresponds to the floor beam 15). The bolt 34 is erected. And the recessed part 38 which the said pressing member 25 fits is formed in the notch part 22 ... of four corresponding slab panels. In addition, each end surface 1a, 1a, 1b, 1b (refer FIG. 5) of the slab panel 1 ... is an inclined surface which goes inward sequentially toward an upper end from a lower end. For this reason, the gap 37 is enlarged upward. By the way, on the liquid seal mount 27, a floor receiving member 43 that receives the end of the slab panel 1 is disposed along the floor beam 15. That is, the installation portion 17 of the slab panel 1 is installed on the floor beam 15 via the liquid seal mount 27 and the floor receiving member 43. In this case, the floor receiving member 43 is made of a shape steel whose bending rigidity is increased in the longitudinal direction, specifically, a shape steel whose groove portion opens downward. Further, the floor receiving member 43 is provided with a through hole through which the fixing bolt 34 is inserted in a corresponding portion of the liquid seal mount 27.

  The fixing bolt 34 of the liquid seal mount 27 is erected in the gap 37 and enters the recess 38, and the pressing member 25 is attached to the protrusion. That is, the pressing member 25 includes a contact plate 40 accommodated in the recess 38 and a nut member 41 that is screwed into the fixing bolt 34. The contact plate 40 is provided with an insertion hole 42 through which the fixing bolt 34 is inserted, and the nut member 41 is screwed onto the screw portion of the fixing bolt 34 protruding upward through the insertion hole 42. Accordingly, the slab panel 1 is pressed downward by the pressing member 25, and the corner portion of the slab panel 1 is fixed to the floor beam 15 via the liquid seal mount 27.

  Further, as shown in FIG. 7, the anti-vibration rubber material 28 includes a plurality of (three in the illustrated example) metal plates 31, and a plurality of rubber plates 32 interposed between the metal plates 31, 31. 32. In this case, it is formed in a substantially rectangular shape in plan view, and its height is suppressed to be lower than that of the liquid seal mount 27. The lateral width in the short direction viewed from the plane of the vibration isolating rubber material 28, that is, the length of the short side, is substantially the same as the panel-side protruding piece 29a of the upper flange 29 of the floor beam 15. Further, a pair of leg bolts 45, 45 are suspended from the vibration-proof rubber material 28, and a single fixing bolt 46 is erected.

  Further, the floor beam 15 to which the vibration isolating rubber material 28 is attached is disposed along the side wall portion of the slab panel 1, and other members such as a shaft set 47 and a column of the outer wall are attached to the upper flange 29. . That is, the shaft set 47 is fixed to the upper flange 29 on the non-panel-side protruding piece 29b via a fixture 48 made of a bolt member and a nut member.

  Then, the anti-vibration rubber material 28 is attached via a base spacer 49 disposed on the panel-side protruding portion 29 a of the upper flange 29 of the floor beam 15. That is, the anti-vibration rubber material 28 is arranged on the base spacer 49 so that the leg bolts 45, 45 protrude downward from the panel-side protruding portion 29 a of the upper flange 29, and the nuts are formed on the protruding portions of the leg bolts 45, 45. The member 50 is screwed. As a result, the anti-vibration rubber material 28 can be attached to the panel-side protruding portion 29 a of the upper flange 29.

  Further, an outer peripheral floor receiving member 44 that receives an end portion of the slab panel 1 is disposed on the vibration-proof rubber material 28 along the longitudinal direction of the floor beam 15. The outer peripheral floor receiving member 44 is made of a section steel having an L-shaped cross section. And the fixing bolt 46 of the vibration-proof rubber material 28 attached to the panel side protrusion part 29a of the upper flange 29 enters between the installation parts 17 and 17 of the adjacent slab panel 1, and the tip of the inserted fixing bolt 46 enters. A pressing member 52 similar to the pressing member 25 is attached to the portion. Further, the outer peripheral floor receiving member 44 is provided with a through-hole through which the fixing bolt 45 is inserted in a corresponding portion of the anti-vibration rubber material 28.

  The pressing member 52 includes a contact plate 53 accommodated in the notch 22 and a nut member 54 screwed to the tip of the fixing bolt 46. The contact plate 53 is provided with an insertion hole 55 through which the fixing bolt 46 is inserted, and the nut member 54 is screwed to the tip of the fixing bolt 46 protruding upward through the insertion hole 55. Therefore, the slab panel 1 is pressed downward by the pressing member 52, and the corner portion of the slab panel 1 is fixed to the floor beam 15 via the vibration isolating rubber 28. The anti-vibration rubber material 28 is also attached to both ends of the floor beam 15 to which the liquid seal mount 27 is attached.

  Thus, the installation part 17 is arrange | positioned through the elastic support member 26 on the several floor beam 15 ... in the some slab panel 1 ..., and the flooring S is formed. The particle board 57 and the floor material are laid on the floor material S thus arranged. In the floor structure configured as described above, when an object falls on the particle board 57 or when a child jumps, the rubber elastic body of the liquid seal mount 27. The floor impact sound that is elastically deformed and propagates from the floor material S to the floor beam 15 can be reduced.

  In the slab panel, since the reinforcing member 3 such as the shape steel 6 is embedded in the concrete base material 2, the strength of the reinforcing member 3 is appropriately adjusted to increase the degree of freedom in design, and the rigidity and sound insulation. The performance can be adjusted. Moreover, precasting is possible, and construction on site can be facilitated. In this slab panel, the lower surface 14 of the overhanging portion 13 is received by a reinforcing receiving piece 23 that is integrally fixed to the reinforcing member 3 in the concrete base material 2 and is installed on the floor beam 16. 17 is formed, the floor surface level can be kept low by arranging the installation portion 17 directly on the floor beam 15 or via the elastic support member 26 or the like. In addition, the installation part 17 is excellent in strength and can be used stably without cracks or the like occurring over a long period of time. Further, since the installation portion 17 is disposed on the floor beam 15 via the elastic support member 26, the height dimension from the floor beam 15 does not increase even if the elastic support member 26 is disposed, and this slab panel. The floor structure using the can be made compact, and furthermore, the floor impact sound can be reduced by the elastic support member 26, and the quality becomes high. That is, it is possible to freely arrange an elastic support member that reduces (reduces) floor impact sound by effectively using the space of the notch.

  Furthermore, by using the shape steel 6, the shape, shape, and shape of the shape steel 6 can freely design the panel strength, weight, and composition, and the fixing position (for example, welding position) of the reinforcement receiving piece 23 (from the floor beam shape) Panel thickness) can be determined as intended by the designer. Moreover, since the structural steel 6 partially protruded from the concrete base material 2 is used as the reinforcing member 3, it is possible to suppress the occurrence of cracks on the protruding side of the structural steel and to easily adjust the bending rigidity and weight. Thus, the sound insulation performance and the like can be improved. Moreover, since the rectangular frame body 24 is comprised by the reinforcement receiving pieces 23 and 23 and the shape steel 6 and 6 of the reinforcement member 3, the intensity | strength of this slab panel can be made very excellent. Further, since the reinforcement receiving piece 23 is an L-shaped angle member composed of a horizontal piece 20 corresponding to the horizontal cutout surface 18 and a vertical piece 21 corresponding to the vertical cutout surface 19, the strength of the installation portion 17 is increased. Stabilization can be achieved. Moreover, since the reinforcing receiving piece 23 and the reinforcing member 3 are fixed by welding, this fixed state is stabilized and the fixing operation can be shortened.

  8 and 9 show another embodiment. In this case, the reinforcing receiving piece 23 is made of a flat plate material. That is, the lower surface of the overhanging portion 13 of the concrete base material 2 is received by the reinforcement receiving piece 23, and the inner end portion 60 of the reinforcement receiving piece 23 is made to enter the concrete base material 2. The inner end portion 60 is installed on the flanges 8 and 8 of the structural steel 6 of the reinforcing member 3, and the inner end portion 60 and the flanges 8 and 8 are integrally fixed by welding. For this reason, in the combined body 5 which consists of the steel bar of the reinforcement member 3, the site | part corresponding to the inner end part 60 is abbreviate | omitted. The other configuration of the panel 1 is the same as that of the panel 1 shown in FIG. 1 and the like. The components are denoted by the same reference numerals as those in FIG. Also in this slab panel 1, when installing on the floor beam 15, the floor receiving member 43 shown in FIG. 6 or the outer peripheral floor receiving member 44 shown in FIG. 7 is used.

  Therefore, even the slab panel shown in FIGS. 8 and 9 can exhibit the same effects as those of the slab panel shown in FIG. 1 and the like, and further, a pair of flanges 8 in the hat-shaped steel, 8 and the flat plate reinforcement receiving piece 23, the fixing work can be simplified, and the slab panel can be firmly fixed and has excellent strength.

  Next, FIG. 10 shows a modified example of the section steel 6. This section steel 6 has a U-shaped main body 61 and a pair of inner casings protruding inward from the opening end of the main body 61. It is comprised with the C-section steel which consists of the parts 62 and 62. FIG. Also in this case, the inner flange portions 62 and 62 are embedded in the concrete base material 2, and the lower end portion 61 a of the main body portion 61 protrudes from the lower surface 2 b of the concrete base material 2.

  In the case where the C-shaped steel is used, if the reinforcing receiving piece 23 is an L-shaped angle material as shown in FIG. 1 or the like, the vertical piece 21 of the reinforcing receiving piece 23 is welded to the end surface of the shaped steel 6. Fixed. Moreover, if the reinforcement receiving piece 23 is a flat plate material as shown in FIGS. 8 and 9, the reinforcing receiving piece 23 is fixed by welding in a state where the reinforcement receiving piece 23 is installed on the inner flange portions 62 and 62.

  Next, FIG. 11 and FIG. 12 show another embodiment, and in this case, the reinforcing member 3 is constituted only by a combined body 5 composed of a plurality of steel bars 4. The steel bar 4 to be used is a round steel bar 4a having a diameter of about 6 mm to 32 mm. Further, the reinforcing receiving piece 23 is made of a flat plate material, and its inner end portion 60 is plunged into the concrete base material 2. For this reason, the combined body 5 of the reinforcing member 3 is extended to the overhanging portion 13, and the extending portion 63 and the inner end portion 60 of the reinforcing receiving piece 23 are fixed by welding. The reinforcing bar 4a includes a deformed steel bar.

  In the panel 1 shown in FIGS. 11 and 12, since the steel bar 4 of the combined body 5 is the reinforcing bar 4a without the shape steel 6, the strength is excellent as the reinforcing member 3, and the reinforcing member 3 has a reinforcing piece. Since 6 is fixed, the strength as the installation part 17 is also excellent. In addition, even if the reinforcing member 3 is only the combined body 5 of the steel bars 4 (reinforcing bars 4a), it is slightly lower than the center of the concrete base material 2 in the vertical direction (thickness direction), that is, below the neutral shaft. It is preferable to arrange. Thus, if the reinforcing member 3 consists only of the combination 5 of the some steel bar 4 embed | buried in a concrete base material, it can manufacture easily and can aim at cost reduction and can aim at the intensity | strength improvement of the whole slab panel. In particular, since the steel bar 4 is the reinforcing bar 4a, it is excellent in strength.

  Although specific embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention. For example, in the panel 1 shown in FIGS. 1 and 9 and the like, the steel bar 4 constituting the combined body 5 of the reinforcing members 3 uses the mesh bars 4b having a diameter smaller than that of the reinforcing bars 4a. A reinforcing bar 4a may be used. Thus, in what used the shape steel 6 and the reinforcing bar 4a, the intensity | strength as a panel becomes still more excellent. If the mesh line 4b is used, the combined body 5 itself is inferior in strength. Even if the reinforcing receiving piece 23 is fixed to the combined body 5, it does not contribute much to improving the strength of the installation portion 17. By fixing the reinforcement receiving piece 23 to the body 5, the manufacturing process of the panel is stabilized. That is, in each panel, the reinforcing member 3 is set in the form frame, and concrete is placed in this state. For this reason, if the combination 5 and the reinforcement receiving piece 23 are being fixed, there exists an advantage which the edge part of the combination 5 does not float.

  Furthermore, although concrete was used as the concrete base material 2 in each of the above embodiments, ALC (lightweight foamed concrete) may be used. In each of the above embodiments, the installation portion 17 is installed and fixed to the floor beam 15 via the elastic support member 26. However, the elastic support member 26 may not be used. Further, the elastic support member 26 may be other than the liquid seal mount 27 and the vibration isolating rubber material 28. Moreover, when installing this slab panel 1 ..., the floor receiving member 43 as shown in FIG. 6 may be abbreviate | omitted, and the outer periphery floor receiving member 44 shown in FIG. 7 may be abbreviate | omitted. Further, if the shape steel 6 of the reinforcing member 3 has a flange 8 like a hat-shaped steel and the reinforcing receiving piece 23 is fixed to the flange 8, a fixing means other than welding, for example, a bolt・ Nut couplings can be used. Further, only the shape steel 6 may be used as the reinforcing member 3, the number of the shape steel 6 for one panel is arbitrary, and the number of the steel bars 4, the arrangement pitch, and the like can be arbitrarily set. Further, the position of the notch portion 22 where the pressing member 25 for pressing the panel against the floor beam 15 is fitted is not limited to the corner portion, but may be an intermediate portion on the short side or an intermediate portion on the long side. May be. Further, in each of the above embodiments, a gap is formed between the opposing panels in order to insert the fixing bolts 34, 45, etc., but it is also possible to abut the facing panels without such a gap. it can. In this case, a vertical groove may be provided in the notch 22, and the fixing bolts 34, 45, etc. may be fitted in the vertical groove.

It is principal part sectional drawing which shows embodiment of the slab panel of this invention. It is a perspective view of the slab panel. It is the sectional view on the AA line of FIG. It is a bottom view of the slab panel. It is a perspective view of the floor material comprised with the said slab panel. It is a principal part expanded sectional view of the attachment state to the floor beam of the said slab panel. It is an enlarged surface view of the other site | part of the attachment state to the floor beam of the said slab panel. It is a perspective view which shows other embodiment of the slab panel of this invention. It is sectional drawing of the said slab panel. It is sectional drawing which shows the modification of a shape steel. It is a perspective view which shows another embodiment of the slab panel of this invention. It is sectional drawing of the said slab panel. It is a principal part perspective view of the conventional slab panel.

Explanation of symbols

  2. ・ Concrete base material, 2b ・ ・ Lower surface, 3 ・ ・ Reinforcement member, 4 ・ ・ Bar, 4a ・ ・ Reinforcement, 5 ・ Assembly, 6 ・ ・ Shape, 8 ・ ・ Flange, 12 ・ ・ Notch , 13 .. Overhang, 14 .. Bottom surface, 15 .. Floor beam, 17 .. Installation part, 18 .. Horizontal cut-out surface, 19 .. Vertical cut-out surface, 20 .. Horizontal piece, 21.・ Vertical piece, 23 ・ ・ Reinforcement receiving piece, 24 ・ ・ Rectangular frame

Claims (12)

  A slab panel in which a reinforcing member (3) is embedded in a concrete base (2), provided with an overhanging portion (13) that forms a notch (12) at the lower end of the concrete base and projects sideways. The lower surface (14) of the overhanging portion (13) is received by the reinforcement receiving piece (23) to form an installation portion (17) installed on the floor beam (15), and the reinforcement receiving piece (23). A slab panel in which the reinforcing member (3) is integrally fixed.   The slab panel according to claim 1, wherein the reinforcing member (3) comprises a combination (5) of a plurality of reinforcing bars (4a) embedded in the concrete base (2).   The slab panel according to claim 1, characterized in that the reinforcing member (3) comprises a section steel (6) part of which protrudes from the lower surface (2b) of the concrete base (2).   A part of the reinforcing member (3) projects from the bottom surface (2b) of the concrete base (2), and the shape base (6) is joined to the concrete base (2). The slab panel according to claim 1, wherein the slab panel comprises a combination (5) of a plurality of steel bars (4) embedded therein.   The cutout portion (12) has a horizontal cutout surface (18) and a vertical cutout surface (18), and the reinforcing receiving piece (23) is a horizontal piece corresponding to the horizontal cutout surface (18). The slab according to any one of claims 1 to 4, wherein the slab is composed of an L-shaped angle member comprising (20) and a vertical piece (21) corresponding to the vertical planar cutout surface (19). panel.   The said reinforcement receiving piece (23) consists of flat plate material, and this reinforcement receiving piece (23) was fixed to the assembly (5) of the said reinforcement member (3), The Claim 2 or Claim 4 characterized by the above-mentioned. Slab panel.   The reinforcement receiving piece (23) is made of a flat plate material, and the shape steel (6) is made of a hat-shaped steel in which a pair of flanges (8) and (8) are embedded in a concrete base material (2). The slab panel according to claim 3 or 4, wherein the reinforcing receiving piece (23) is fixed to a pair of flanges (8) (8) in the hat-shaped steel.   6. The slab panel according to claim 5, wherein the horizontal piece (20) of the reinforcing receiving piece (23) made of an L-shaped angle member is fixed to the combination (5) of the reinforcing members (3).   The slab panel according to claim 5, characterized in that the vertical piece (21) of the reinforcing receiving piece (23) made of an L-shaped angle member is fixed to the shape steel (6) of the reinforcing member (3).   A rectangular frame (24) is comprised by the said reinforcement receiving piece (23) (23) and the shape steel (6) (6) of a reinforcement member (3), Any of Claims 3-9 characterized by the above-mentioned. Kano slab panel.   The slab panel according to any one of claims 1 to 10, wherein the reinforcing receiving piece (23) and the reinforcing member (3) are fixed by welding. A floor structure characterized in that the installation part (17) of the slab panel (1) according to any one of claims 1 to 11 is arranged on a floor beam (15) via an elastic support member (26). .