JPH0312887Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a structure in which concrete floor panels are stretched and attached to the floor of a building, such as the second or third floor.

[Background technology] Conventionally, as shown in Fig. 7, two girders are placed between one column.
A small beam 3 is constructed so as to be perpendicular to one of the large beams 2.
are constructed to constitute the frame of the building, outer wall panels 4 are arranged around the outer periphery of the building, the outer wall is assembled, and the outer wall panels 4 are fixed to the girders 2 with attachment materials 5.
On the floors of the second and third floors, a large number of concrete floor panels 6 are lined up over the entire surface, and the ends of adjacent concrete floor panels 6 are placed on the small beams 3. The concrete floor panels 6 that are adjacent to each other in the longitudinal direction of the small beams 3 are in contact with each other on their sides, and at the wall perpendicular to the small beams 3, the sides of the concrete floor panels 6 are placed above the large beams 2, and the small beams 3
The end of the concrete floor panel 6 is placed on the girder 2 near the wall parallel to the girder 2 . In the concrete floor panel 6, a notch 7 is provided along the entire length on the upper surface side of the side part, and a joint reinforcing bar 8 is installed in this notch 7.
is arranged, and a mounting plate 9 is erected between the end faces of the adjacent concrete floor panels 6 on the small beam 3.
The joint reinforcing bars 8 are inserted into the insertion holes 10 of the concrete floor panel 6, and the mortar 12 is filled so as to bury the joint reinforcing bars 8 in the side joint grooves 11 between the sides of the concrete floor panel 6 formed by the notches 7. End joint groove 1 between end faces of adjacent concrete floor panels 6 via 3
3 is also filled with mortar 12. In addition, at the wall where there is a large beam 2 perpendicular to the small beam 3, as shown in Figures 8 and 9, a spacer 14 is placed on the large beam 3 (because the height of the top surface of the large beam 2 is lower than that of the small beam 3). The side part of the concrete floor panel 6 (with a spacer 14 interposed in order to absorb this level difference) is placed, and the mounting plate 9 is erected on the spacer 14.
The joint reinforcing bars 8 inserted through the insertion holes 10 of the mounting plate 9 are positioned in the notches 7, and the notches 7 and between the outer wall panel 4 and the side surface of the concrete floor panel 6 on the girder 2 are filled with mortar 12. . However, in such a conventional example, the concrete floor panel 6 on the large beam 2 near the wall perpendicular to the small beam 3
It has the disadvantage that a large amount of mortar 12 is required to fix the side part of the structure, and the construction is time-consuming.

[Purpose of the invention] The present invention was made in view of the above points, and the purpose of the invention is to easily fix the end of a concrete floor panel near a wall with fixing fittings and bolts and nuts. To provide a concrete floor panel mounting structure that does not require extra mortar and can be easily constructed.

[Disclosure of the invention] The mounting structure of the concrete floor panel of the present invention is to erect a large beam 2 along the wall of a building, erect a small beam 3 perpendicular to the large beam 2, and install a concrete floor panel on top of the small beam 3. The ends of the panels 6 are placed so that the end faces of the adjacent concrete floor panels 6 face each other via the small beams 3, and the side surfaces of the concrete floor panels 6 adjacent to each other in the longitudinal direction of the small beams 3 are made to face each other, and the concrete A joint reinforcing bar 8 is placed in a notch 7 provided along the entire length on the upper surface side of the floor panel 6, and an insertion hole for a mounting plate 9 is provided between the end faces of the concrete floor panel 6 adjacent to the small beam 3. 10
The joint reinforcing bars 8 are inserted into the grooves, and the side joint grooves 11 between the sides of the concrete floor panel 6 formed by the notches 7 are filled with mortar 12. is filled with mortar 12, a fixing fitting 15 is arranged on the lower surface side of the end of the concrete floor panel 6 located near the wall, and the locking part 16 at one end of the fixing fitting 15 is connected to the upper flange 3a of the small beam 3. Lock in the locking hole 17, insert the bolt 18a from the upper surface of the end of the concrete floor panel 6 through the concrete floor panel 6 to the fixing fitting 15, and screw the nut 18b onto the bolt 18a on the lower surface side of the fixing fitting 15. By configuring as described above, the drawbacks of the conventional example are solved. That is, the fixing fitting 15 is arranged on the lower surface side of the end of the concrete floor panel 6 located near the wall, and the locking part 16 at one end of the fixing fitting 15 is connected to the locking hole 17 of the upper flange 3a of the small beam 3.
The fixing fittings 1 are fixed to the upper surface of the end of the concrete floor panel 6 through the concrete floor panel 6.
By inserting the bolt 18a to the bottom of the fixture 15 and screwing the nut 18b onto the bolt 18a on the lower side of the fixture 15, the fixture 15 and the bolt/nut 18
It can be fixed to the small beams 3 of the concrete floor panel 6 near the wall at points a and 18b, and can be easily constructed without requiring extra mortar 12 as in the conventional method.

The present invention will be explained in detail below with reference to Examples.

The structure of the building is the same as the conventional example, so the explanation will be omitted. Further, the concrete floor panel 6 is a concrete panel such as ALC, and has a notch 7 along the entire length on the upper surface side of the side part. The concrete floor panels 6 are also laid out in the same way as before and are attached in the same way as before, except for the walls that are perpendicular to the small beams 3, so the explanation will be omitted. First, the embodiment shown in FIGS. 1 to 4 will be explained. As shown in FIG. 4, the fixing fitting 15 is provided with a stepped portion 19 approximately in the longitudinal center of a flat plate material 15a.
A pair of locking portions 16 projecting upwardly are provided at one end, and an insertion hole 20 is bored at the other end. Bolt/nut 18a, 18b and round washer 18
c is constructed as shown in FIG. The above-mentioned locking part 1 is attached to the upper flange 3a near the end of the small beam 3 near the wall.
A locking hole 17 is bored into which the locking hole 6 locks. Furthermore, the concrete floor panel 6 that is attached to the wall may also have cutouts 7 on both sides as described above, but in this embodiment, the concrete floor panel 6 has cutouts 7 on only one side. A floor panel 6a is used, and the side surface without the notch 7 is in contact with the outer wall panel 4. This concrete floor panel 6
A through hole 21 is formed at the end of a, and a counterbore 22 is provided on the upper surface side of the through hole 21. Therefore, when installing the concrete floor panel 6a near the wall, the concrete floor panel 6a should be installed as shown in FIGS. 1, 2, and 3.
A fixing metal fitting 15 is arranged on the lower surface side of the end of a, the locking part 16 is locked in the locking hole 17, the insertion hole 20 is aligned with the through hole 21, and the round washer 18 is attached to the bolt 18a.
The bolt 18a is inserted through the counterbore 22 into the through hole 21 and the insertion hole 20 through the counterbore 22, and the nut 18b is screwed onto the bolt 18a on the lower surface side of the fixture 15.

Further, FIGS. 5 and 6 show other embodiments. In this embodiment, the fixture 15 is formed by extending an L-shaped fitting leg 15b downward from one end of the plate material 15a, and the fitting leg 15b extends along the upper flange 3a, web 3b, and lower flange 3c of the small beam 3. 15b can be fitted. In this case, the fixture 15 can be temporarily fixed to the small beam 3 by fitting the fitting leg 15b to the small beam 3, improving the workability of the installation.

[Effects of the invention] As described above, the present invention places a fixing bracket on the lower side of the end of the concrete floor panel located near the wall, and connects the locking part of one end of the fixing bracket to the locking hole of the upper flange of the small beam. The bolt is inserted from the upper surface of the end of the concrete floor panel to the fixing bracket through the concrete floor panel, and the nut is screwed onto the bolt on the bottom side of the fixing bracket, so that the fixing bracket and bolt The concrete floor panel near the wall can be fixed to the small beam with nuts, and waste of mortar can be eliminated without requiring extra mortar as in the conventional method, and it can be easily constructed.

[Brief explanation of drawings]

Figure 1 is a perspective view of the main parts of an embodiment of the present invention, Figure 2 is a plan view showing the same concrete floor panel with imaginary lines, Figure 3 is a sectional view of the same, and Figure 4 is the fixing of the same as above. A perspective view showing a metal fitting, a bolt/nut, and a round washer, FIG. 5 is a sectional view of another embodiment of the same as above, FIG. 6 is a perspective view of a fixing metal fitting, a bolt, and a nut as above, and FIG. 7 is a conventional example. 8 is a cross-sectional view of the conventional example, and FIG. 9 is a partially cutaway perspective view of the conventional example, in which 2 is a main beam, 3 is a small beam, 6 is a concrete floor panel, and 7 is a Notch, 8 is joint reinforcement, 9
1 is a mounting plate, 10 is an insertion hole, 11 is a side groove, 12 is mortar, 13 is an end groove, 1
5 is a fixing metal fitting, 16 is a locking part, 17 is a locking hole, 1
8a is a bolt, and 18b is a nut.

Claims (1)

[Scope of utility model registration request] A large beam is erected along the wall of the building, a small beam is erected perpendicular to this large beam, and the end of the concrete floor panel is placed on top of the small beam to connect the adjacent concrete floor panel via the small beam. The end surfaces of the beams are made to face each other, and the sides of the concrete floor panels that are adjacent to each other in the longitudinal direction of the small beams are made to face each other, and joint reinforcing bars are placed in the notches that are provided along the entire length of the upper surface side of the concrete floor panels. Insert the joint reinforcing bars into the insertion holes of the mounting plates installed between the end faces of the concrete floor panels adjacent to the small beams, and fill the side joint grooves between the sides of the concrete floor panels formed by the cutouts with mortar. At the same time, in the installation structure of a concrete floor panel in which the end joint groove between the end faces of the concrete floor panel is filled with mortar, a fixing bracket is placed on the lower surface side of the end of the concrete floor panel located near the wall, and one end of the fixing bracket is installed. Lock the locking part of the frame into the locking hole of the upper flange of the small beam, insert the bolt from the top of the end of the concrete floor panel through the concrete floor panel to the fixing bracket, and insert the bolt into the bolt on the bottom side of the fixing bracket. A concrete floor panel installation structure consisting of screwed together nuts.