JPH059368Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is used for floor or roof slabs in steel frame structures, which are constructed by placing panel materials made of foam or lightweight concrete, such as ALC plates, on beam materials. Regarding.

[Conventional technology]

Conventionally, in steel frame structures using panel materials made of foam or lightweight concrete such as ALC plates, plates with holes are attached to the steel beams by welding, etc., and short steel rods such as reinforcing bars are passed through the holes in the plates. In this configuration, the joints of the installed panels are filled with mortar and fixed.
Steel bars do not connect opposing steel beams to each other. Since the hardware (plates) on steel beams are flat plates, they have low rigidity and strength against lateral forces. Therefore, it is impossible to provide the horizontal rigidity and yield strength of the entire floor slab to the panel material, and as shown in Fig. 1, the horizontal braces 3 bear the horizontal rigidity of the frame, and the steady rest members 4 are used to support the beams. 2 was restrained from buckling.

[Problem that the invention attempts to solve]

However, conventional structures do not utilize the in-plane rigidity and yield strength of panel materials. Therefore, there are problems in that the cost is high due to the use of members such as braces and steady rests, and they also get in the way, making ceiling finishing and piping work difficult.

[Means for solving problems]

This idea was devised to solve the above-mentioned problems, and it was possible to ensure the horizontal rigidity and strength of the entire floor with the panel material itself, and at the same time, it had the effect of restraining the buckling of the beam material. It is something.
That is, in a floor or roof slab constructed using a plurality of panel materials made of foam or lightweight concrete, a rectangular supporting metal having a bottom plate is installed at a predetermined position on the upper flange of the steel beam to connect the bottom plate with bolts and nuts. When the panel material is fixed at a predetermined position, its corners are cut into rectangular shapes and the corner portions are laid between the steel beams with the corner portions attached to the support hardware, and the support hardware on the opposing steel beams is connected to each other. A rigid slab characterized by being bonded together with steel rods, the steel rods being placed in the joints of panel materials, and the joints filled with mortar to integrally connect the steel rods and the panel materials. This eliminates the need for the above-mentioned members such as braces and steady rests.

By integrating in this manner, force can be transmitted from the beam to the panel material and from the panel material to other beams, and a rigid slab is formed by connecting the supporting hardware together with steel rods.

The rectangular support hardware used here with a bottom plate is
Any material can be used as long as it can restrain the corner portions of the panel material and has a certain degree of rigidity. Such supporting metal fittings are easily manufactured by cutting square steel pipes to an appropriate length or combining steel plates, and fixing them by welding or the like to a bottom plate with bolt insertion holes drilled at the lower end. The bottom plate of this support hardware is easily fixed to the steel beam with bolts and nuts.

〔Example〕

Figure 2 shows a plan view of the floor of a steel frame in an embodiment of this invention, in which a set of bolt insertion holes are installed in the upper flange of beam 2 at a predetermined pitch (in this figure, the width of the ALC plate). 5 is drilled. Then, using the bolt insertion holes 5, a square columnar support metal fitting 6 is fixed with bolts 9 and nuts 10, to which a base plate 7 having bolt insertion holes 8 formed at required positions of the beam 2 is fixed to the lower end. Then, at the required position, the corner portion is cut out into a rectangular shape so as to follow the support metal fitting 6, and the ALC plate 15 is laid. thus,
As shown in Figure 3, the ALC plate 1 is
Restrain 5. Note that the supporting hardware 6 is attached to the opposing beam 2.
Fix it at the corresponding position between the two.

Figures 4 to 6 show the shape of the support hardware 6 and the beam 2.
This shows how to fix it. The support hardware 6 has no directionality, and bolts 9 are inserted into the bolt insertion holes 8 of the base plate 7 fixed to the lower end of the support hardware 6, and further into the bolt insertion holes 5 of the upper flange of the beam 2, and tightened with nuts 10. Fix it.

Further, a bolt insertion hole 11 is bored in the upper center of the four side peripheral walls of the support hardware 6. This bolt insertion hole 11 is provided for fixing a steel rod 12 that connects two or more supporting hardware 6 to each other.
2 is inserted into this bolt insertion hole 11 and fixed to the side wall of the support hardware 6 with a nut 14 that is screwed into a screw 13 provided on a steel rod 12.

FIG. 7 to FIG. 9 show that after fixing the support hardware 6,
This shows the state in which ALC plate 15 is placed.
Then, as shown in FIGS. 13 to 14, a cylindrical groove 19 is bored across the joint part of the ALC plate 15,
A steel ring 20 having substantially the same cross section as this groove 19 is fitted into the groove 19. This allows ALC version 1
Prevents shear deviation between 5. And ALC version 1
The joints between 5 are filled with mortar 16, and the supporting hardware 6, steel rods 12, and ALC plates 15 are integrated to form a rigid floor slab. In addition, the inside of the supporting hardware 6 is filled with mortar 16, and the ALC plate 15 is filled with mortar 16.
The connecting portion 23 between the wall and the wall is filled with mortar, rock wool, etc., and the edges are treated.

Fig. 10 shows a plan view of the roof of the embodiment of this invention, in which supporting hardware 6, steel rods 12, ALC plates 15, etc. are arranged in the same way as the floor floor, and the upper ends of columns 1 are also supported. Hardware 6 is fixed and each ALC
A blow-up prevention reinforcing bar 17 is arranged at the end of the joint between the plates 15. Then, mortar 16 is poured over the entire surface and the roof slab is integrated to form a rigid roof slab.

11 and 12 show the shape of the blow-up prevention reinforcing bar 17 and its connection with the steel rod 12. The blow-up prevention reinforcing bar 17 has a circular steel rod 18 at one end.
is fixed by welding etc. This blow-up prevention reinforcing bar 1
7 has a circular steel rod 18 at the end thereof placed on the upper flange of the steel beam 2, and a steel rod 1 that connects the supporting hardware 6 to each other.
It is placed in the joint between the ALC plates 15 through the lower end of the roof plate 2 and filled with mortar 16 to integrate the ALC plates 15, blow-up prevention reinforcing bars 17, and steel rods 12, and to resist the blow-up force on the roof surface.

[Effect of idea]

The rigid slab of this invention has the above-mentioned configuration,
It has the following advantages and characteristics.

The panels made of multiple foam or lightweight concrete that make up the floor slab or roof slab are restrained horizontally by rectangular supporting hardware, and the supporting hardware is tied together with steel rods and held together by mortar. , a rigid slab is formed, and the horizontal force is transmitted from the columns and beams of the steel frame to the supporting hardware, panel materials, mortar at the joints, and then to the panel materials and supporting hardware to the opposing beams and columns.

As a result, horizontal braces and steady rest members are no longer required, reducing costs and making ceiling finishing and piping work easier.

Installation of the supporting hardware is simple, as it is only necessary to use bolts and nuts, and ordinary steel rods can be used, so construction is easy.

[Brief explanation of the drawing]

Figure 1 is a plan view of a conventional steel frame;
The figure is a plan view of the floor of the steel frame in an embodiment of this invention, Figure 3 is an enlarged view of the main part of Figure 2, Figure 4 is a vertical cross-sectional view showing the structure of the supporting hardware, and Figure 5 is the same as Figure 4. The side view and FIG. 6 are also plan views. FIG. 7 is a longitudinal sectional view showing the connection between the supporting hardware and the panel material, FIG. 8 is a side sectional view of FIG. 7, and FIG. 9 is a plan view. 1st
Figure 0 is a plan view of the roof in an embodiment of this invention.
Fig. 11 is a longitudinal cross-sectional view showing the connection between blow-up prevention reinforcing bars and steel bars, Fig. 12 is a plan view of Fig. 11, and Fig. 13
The figure is a vertical cross-sectional view showing the structure of a steel ring, No. 14.
The figure shows the plan view of FIG. 13. 1...Column, 2...Beam, 3...Horizontal brace, 4
... steady rest, 5 ... bolt insertion hole, 6 ... support hardware, 7 ... base plate, 8 ... bolt insertion hole, 9 ... bolt, 10 ... nut, 11 ... bolt insertion hole, 12 ... Steel rod, 13...Screw, 14
... Nut, 15 ... ALC plate, 16 ... Mortar, 17 ... Blow-up prevention reinforcing bar, 18 ... Circular steel plate, 19 ... Cylindrical groove, 20 ... Steel ring, 2
1...Wall version.

Claims (1)

[Scope of utility model registration request] In a floor or roof slab constructed using multiple panels made of foam or lightweight concrete, a rectangular supporting metal having a bottom plate is fixed to the top flange of the steel beam using bolts and nuts. At a predetermined position, the panel material is laid between the steel beams with its corner portion cut out into a rectangular shape and the corner portion attached to the support metal fitting, and the support metal fittings on the opposing steel beams are While tightening with a rod, the steel rod is placed in the joint part of the panel material,
A rigid slab characterized in that the joints are filled with mortar and the steel rod and panel material are integrally joined.