JPH11107217A - Floor slab for structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor slab, by which load applied to a structural material such as a bridge girder by lightening is reduced and which can be connected tightly, is firm, is difficult to be damaged and is maintained easily. SOLUTION: The floor slab 10 is formed by mutually connecting a plurality of extruded profiles 12 made of an aluminum alloy. Male type sections 20 are formed to connecting surfaces 18 at one ends of each extruded profile 12 and female type sections 30 to the connecting surfaces 18 at the other ends, rigid round bars 39 are disposed into each recessed groove 26 among pairs of holding pieces 24 symmetrically extended towards the outside at the front ends of the projecting strips 22 of the male type sections 20 and the connecting surfaces 18, the engaged projecting strips 22, holding pieces 24 and rigid round bars 39 are fitted into the square grooves 38 of the female type sections 30, the extruded profiles 12 are pushed so that the flanges 32 are brought near mutually, and the extruded profiles 12 are coupled mutually by caulking, by which each bent piece 34 at the front ends of the flanges 32 is penetrated into openings remaining in each recessed groove 26 while plastically deforming the front end sections 26, at that time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor slab for a building which is fixed by being bridged between a plurality of bridge girders in a bridge or between a plurality of beams or girders in a building or the like.

[0002]

2. Description of the Related Art Generally, a bridge body 80 installed between piers of a bridge such as an elevated road or the like, as shown in FIG.
A floor slab 84 made of reinforced concrete is fixed on a plurality of parallel bridge girders 82 made of shaped steel, and an asphalt pavement (not shown) is laid on the floor slab 84 via a waterproof layer. Further, as shown in FIG.
Are also widely used.

On the other hand, in a building having a steel structure, etc., as shown in FIG.
A deck plate 92 formed by bending a steel plate is passed over,
A floor material 94 on which reinforced concrete or mortar is laid is formed thereon to form a floor slab 96. Alternatively, a preformed PC (precast concrete) plate is bridged between the beams 90 and fixed to form a floor slab.

[0004]

The floor slabs 84, 8
Since 6 is made of reinforced concrete, it is quite heavy. For this reason, the bridge girders 82 and piers (not shown) that support them are made of a structural material such as a floor slab 84 having sufficient strength to withstand the load in advance. In addition, since the floor slab 96 and the PC slab using the deck plate 92 are quite heavy, large-sized structural members such as beams 90, girders and columns for supporting these loads are also used.

[0005] In other words, vehicles and people that the bridge should originally support,
Alternatively, in addition to the interior materials and the like that should be originally supported by the building and the like, the floor slabs apply a considerably large load to structural members such as bridge girders and beams. Further, the reinforced concrete floor slab 84 and the like require regular maintenance such as repairing defects and the like,
The labor for maintenance of the structure is also great. The present invention solves the above-mentioned problems of the conventional floor slabs, reduces the so-called dead load on the structural material, is lightweight, can be tightly connected, is strong, is hardly damaged, and can easily maintain the building floor. The purpose is to provide a version.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has been made with the idea of forming a floor slab by integrally forming a plurality of extruded members made of aluminum alloy by caulking. is there. That is, the building floor slab of the present invention is a floor slab which is connected by fitting and caulking a plurality of extruded members made of aluminum alloy, and a male die is provided on a connection surface at one end of the extruded members. The part is formed with a female part on the connecting surface at the other end, and a pair of flanges forming the female part is slightly obliquely outwardly expanded, and the female part of one extruded member adjacent to each other is formed. The male part of the other extruded profile is fitted between the flanges, and the pair of flanges of the female part are caulked so as to be close to each other.

[0007] According to this, each flange of the female mold portion is plastically deformed so as to hold the male mold portion from both sides, thereby providing a floor slab that firmly connects a plurality of extruded members. Therefore, an extremely lightweight floor slab can be provided, and it is also possible to reduce the size and weight of the structural members such as the bridge girder and the beam without applying excessive load. In addition, rattling and loosening are less likely to occur, and deformation and local damage are less likely to occur, so that maintenance can be facilitated.

The male part of the extruded profile has a convex ridge protruding from the center of the connecting surface of the profile, a pair of holding pieces extending outward from the tip of the convex ridge, and a pair of these holding pieces. It has a pair of concave grooves formed between the piece and the connecting surface, a hard rod is inserted into the concave grooves, and the female part of the extruded profile is inward from the tip of the pair of flanges. While having a bent piece extending, and inserting each bent piece of the female part into each gap between the connecting surface of the male part and the hard rod, caulking so that the pair of flanges come close to each other. Included construction slabs. According to this, since the bent piece at the end of each flange is plastically deformed and extended along the peripheral surface of the hard rod by the hard rod interposed between the male part and the female part,
The connecting portion between the adjacent extruded members becomes dense, and a floor slab having a stronger connecting structure without rattling or loosening can be obtained.

The above-mentioned hard bar only needs to be harder than the extruded members to be connected. For example, a bar steel or a stainless steel bar is used. Further, it is preferable to insert one or a plurality of divided hard rods over the entire length in the concave groove.
However, a plurality of hard rods may be partially inserted along the recess. Further, a floor slab for a building, in which a concave portion is formed at the tip of the convex streak of the male portion and a convex portion which fits into the concave portion at the center between a pair of flanges in the male portion, is also included. As a result, since the male and female fitting portions in the opposite directions are further added to the center of the connecting portion, looseness with backlash is less likely to occur, and a more dense and strong connecting structure can be obtained.

[0010] Further, another floor slab for a structure according to the present invention is a floor slab which is connected by fitting and caulking a plurality of extruded sections made of aluminum alloy, and one end of the extruded section. The first die portion having a central tapered strip and a pair of locking flanges extending slightly obliquely outward from both sides on a connecting surface of the first die portion, and a pair of slightly obliquely outer portions capable of holding the tapered tape on the connecting surface at the other end. Forming a second mold portion having a pair of intermediate flanges extending in the direction, fitting the tapered strip of the first mold portion between the pair of intermediate flanges of the second mold portion, and each of the first mold portions The locking flanges are caulked so as to be close to each other, and the locking claw at the tip of each locking flange is locked in the locking groove at the outer base of each intermediate flange. According to this, on both sides of the connecting portion between the extruded sections, the intermediate flange and the locking flange are plastically deformed and caulked so as to regulate each other with the tapered strip interposed therebetween. It becomes possible to make a plate.

[0011] The extruded profile also includes a floor slab for a building in which the extruded profile has a hollow portion along the extrusion direction and a wide bottom groove integrally formed in the hollow portion on one outer surface. According to this, the weight can be further reduced, and the head of the bolt for fixing the floor slab to the bridge girder or the like can be inserted into the wide groove, so that the drilling of the through hole for the bolt can be omitted. In addition, the fixing operation can be facilitated. Further, the floor slab may be bridged between a plurality of bridge girders in a bridge, or may be bridged between a plurality of beams or girders in a building or the like and fixed with bolts and nuts. It also includes doing. The floor slab of the present invention is:
It can also be applied to all constructions consisting of a plurality of extruded profiles and used as flooring (plates), such as houses, terraces, corridors or piers.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 relates to a bridge 1 using a floor slab 10 of the present invention. This bridge 1 is shown in FIGS. 1 (A) and 1 (B).
As shown in the figure, the bridge girder 2, 2 made of I-shaped steel disposed along the longitudinal direction of the bridge, and the floor slab 10 bridged between the bridge girder 2, 2 above, This floor slab 1
The asphalt pavement layer 8 is laid above the zero. The bridge girder 2 has a cross section in which the centers of upper and lower horizontal flanges 4 and 4 are connected by a vertical web 6 and is adjacent to each other.
The centers have a center-to-center distance of about 2.5 meters.

A plurality of interconnected aluminum alloy (hereinafter referred to as "aluminum") extruded members 12 forming the floor slab 10 are formed of a plurality of hollow portions 14 having a flat rectangular cross section.
And the extrusion direction along the hollow portion 14 is arranged to be perpendicular to the bridge girder 2. Furthermore, the floor slab 10 is shown in FIG.
As shown in FIG. 2, both ends of each extruded section 12 are placed on the flange 4 above each bridge girder 2 and are fixed by bolts B and nuts N. The length of the extruded profile 12 is about 2 meters, and its cross section is about 10 cm in height and about 25 to 50 cm in width, and is JIS6061-T5 or T6, or 6N0.
1- An aluminum alloy material such as T5 or T6 for spreading is used. In FIG. 1B, the flange 4 above the bridge girder 2 is shown.
A spacer 9 for filling the gap between the floor slabs 10 on both sides is embedded in the pavement layer 8 above.

Further, as shown in FIG. 2, through holes 16 are formed near both ends of the hollow portion 14 in each extruded section 12 forming the floor slab 10. Then, the bolt B is inserted from the opening at both ends, and the male screw portion is inserted into the through hole 1.
6 through the flange 4 above the bridge girder 2,
As shown in (B), the nut is screwed. As a result, the floor slab 10 is fixed between the bridge girders 2 and 2 at both ends by the bolts B and the nuts N. Therefore, each extrusion 12
A bending moment in the vertical direction is received along substantially the entire length in the extrusion direction along the hollow portion 14. In addition, each extrusion 12
Has a male part 20 along the connecting surface 18 at one end and a female part 30 along the connecting surface 18 at the other end, each of which is integrated over the entire length in the extrusion direction.

[0015] As shown in FIG.
Is a pair of projections 22 projecting from the center of the connecting surface 18 of the extruded profile 12 on the left side in the drawing, and a pair of holding members having a curved cross section extending in the vertical direction (both outside) from the tip of the projections 22 in the illustration. It has a cross section composed of holding pieces 24, 24 and a pair of concave grooves 26, 26 formed between these holding pieces 24 and the connecting surface 18. 3A, a pair of flanges 32, 3 extending slightly obliquely up and down (outward) at both ends of the connecting surface 18 of the extruded profile 12 on the right side in FIG.
2, a bent portion 34 extending substantially perpendicularly to the center (inward) side from the front end thereof, and a square groove 38 surrounded by the flange 32 and the bent portion 34.

The connection between the male part 20 and the female part 30 is as follows.
This is performed as follows. As shown in FIG. 3 (B), first, a hard round bar 39 made of stainless steel is arranged near the holding piece 24 in each concave groove 26 of the male part 20 of the extruded profile 12 on the left side. At this time, it is desirable that the hard round bar 39 is temporarily fixed by bonding or the like so that the peripheral surface of the hard round bar 39 contacts the inner wall surface of the holding piece 24. Next, the right extruded section 12 is slid along the extrusion direction so that the flange 32 of the female section 30 sandwiches the male section 20, that is, each bent piece 34 is As shown in the figure, the male part 20 and the female part 30 are extended over the entire length so that the holding piece 24 and the hard round bar 39 enter the square groove 38 and the holding piece 24 and the hard round bar 39 enter. Fit and stack. In this state, the outer surfaces of the flanges 32 are pressed from above and below as indicated by arrows in the drawing. Specifically, a pair of rollers is arranged at the same position in the upper and lower directions, and the interval is set to the extruded shape 12
The left and right extruded members 12 are moved in the front-rear direction (depth on the paper surface) as shown in FIG.

As a result, as shown in FIG. 3 (C), each bent piece 34 of the female part 30 is in the gap between the connecting surface 18 in each groove 26 of the male part 20 and the hard round bar 39. And the tip portion 36 is forcibly plastically deformed so as to follow the peripheral surface of the hard round bar 39. At the same time, each holding piece 24 of the male part 20 and the hard round bar 39 are forcibly clamped between the flanges 32 of the female part 30. At this time, each hard round bar 39 slightly bites into the ridge 22 of the male part 20 and the flange 32 of the female part 30. Therefore, by such caulking, the male mold part 20 and the female mold part 30 can form a dense connection structure over the entire length of the connection surface 18 and can obtain a strong connection strength.
In addition, using a large-sized press in place of the above-mentioned roller, by caulking which presses each of the flanges 32 one or more times,
The outer surface of the flange 32 can be flattened to the same height as the middle part of the extruded profile 12. In addition, the hard round bar 39
After the male part 20 and the female part 30 are fitted to each other, they can be inserted between them and caulked.

The upper and lower outer surfaces of each extruded member 12 are
As described above, the floor slab 10 formed by the extruded profiles 12 is fixed between the bridge girders 2 and 2 or a waterproof treatment is performed on the floor slab 10 to form the asphalt. It is also easy to lay the paving layer 8.
In addition, the total number of the extruded members 12 forming the floor slab 10 is arbitrary. For example, the total length is adjusted to match the length of each unit bridge girder of the long bridge, or the connection is performed in advance by caulking in a factory. A unit body having a unit length of 10 to 20 meters may be used.

The fixing of the floor slab 10 is described in detail in FIG.
As shown in (A), a bolt B is inserted into each hollow portion 14 from both ends of each extruded profile 12 and its male screw portion is inserted into a through hole 16.
Hole 5 that penetrates the inside and is drilled in the flange 4 of the bridge girder 2
Through which the nut N is fastened. In this case, in consideration of thermal expansion and contraction of the extruded shape member 12, the through hole 16 is an elongated hole along the longitudinal direction of the hollow portion 14. Also, as shown in FIG.
A box-shaped portion 17 is formed integrally with the extruded profile member 12 and forms a wide-bottom groove 15 that opens on the lower (one) outer surface of each extruded member 12 in advance. The bolt head of the bolt B can be inserted from above, the male screw portion can be inserted through the through hole 5 of the flange 4 of the bridge girder 2, and a nut N can be fastened and fixed to this. According to this, the operation of forming the through hole 16 can be omitted.

As described above, the floor slab 10 formed by connecting a plurality of extruded profiles 12 by the above-described caulking is used for the bridge girder 2,
Even if it is fixed between the two, due to its light weight, no excessive load is applied to the bridge girder 2 or the pier. In addition, the traveling slab can sufficiently withstand the bending moment due to the load applied downward between the bridge girders 2 and 2 to the floor slab 10. Further, even when a vertical shearing force is applied along the connecting surface 18 between the adjacent extruded profiles 12 forming the floor slab 10 as the vehicle or the like travels, the connection structure by the dense and strong caulking,
Less likely to rattle or loosen from each other,
It is possible to cooperate well against such shearing forces.

FIG. 5 shows the male part 2 of the extruded members 12.
FIG. 7 shows the connection of the female mold part 30 according to the application form. That is, as shown in FIG. 5 (A), the male mold part 20 is further formed with a concave part 40 having a trapezoidal cross section at the tip of the ridge 22. The female mold part 30 further has a trapezoidal convex part 44 projecting from the hollow part 14 at the center of the square groove 38 and located at the center between the flanges 32. The convex portion 44 is formed in a substantially similar shape to the concave portion 40. Even if there is some variation, there is no problem in fitting the two. The outward spread of each flange 32 is slightly wider than in the case of FIG.

First, as shown in FIG.
9 is set as described above, and then the convex part 44 is inserted into the concave part 40, and the male part 20 and the female part 30 are fitted as described above. In this state, the gap 42 is formed between the convex portion 44 and each holding piece 24. Then, when the flanges 32 of the female mold part 30 are pressed in the direction of the arrow so as to be close to each other, as shown in FIG.
Each of the bent portions 34 and the hard round bar 39 is caulked in the same manner as the connection structure of FIG. 3C, and the fitting between the concave portion 40 and the convex portion 44 is added. Accordingly, since the extruded members 12 are provided with a denser and stronger caulking connection structure by the male mold portion 20 and the female mold portion 30, the floor slab 10 can be made light and strong.

FIG. 6 relates to the connection of extruded profiles 12 having differently shaped male sections 50. The extruded profile 12 on the left side of FIG. 6 (A) has a male part 50 formed on its connecting surface 18. The male part 50 includes a protruding ridge 52 protruding from the center of the connecting surface 18, a bulging ridge 54 protruding symmetrically from both sides thereof, and a substantially oval cross section. And a pair of curved grooves 56 formed in the section.
The right extruded section 12 is formed with the same female section 30 as described above. First, as shown in FIG. 6 (B), the convex ridges 52 and the bulging ridges 54 of the male part 50 are inserted into the square grooves 38 of the female part 30 and the bent pieces 34 of the female part 30 are inserted. Male part 50
Are fitted so as to be inserted into the curved grooves 56, respectively. Then, similarly to the above, each flange 32 of the female mold part 30 is pressed in the direction of the arrow from both upper and lower sides.

As a result, as shown in FIG. 6C, the bent piece 34 of the female part 30 enters the curved groove 56 while the tip part 36 is plastically deformed, and at the same time, the circumference of the bulge 54 Each flange 32 sandwiches the ridge 52 and each bulge 54. The light and strong floor slab 10 can also be formed by fitting the male part 50 and the female part 30 and connecting the extruded members 12 by caulking. The bulge 54 of the male part 50 is supported by the holding piece 2 of the male part 20.
Since the cross section is substantially the same as that of the hard round bar 4, the hard round bar 39 can be omitted.

FIG. 7 relates to the connection between the extruded profiles 12 having the first and second mold portions 60 and 70 in further different forms.
A first mold part 60 is formed on the connecting surface 18 of the extruded profile 12 on the left in FIG. The first mold part 60 has a tapered part 6 having a substantially circular cross section projecting from the center of the cross section of the shape member 12.
2, a pair of locking flanges 64 extending symmetrically outwardly from both sides, a pair of locking claws 66 projecting inward at the tip of each flange 64, and a pair of inclined walls surrounded by these. It has a cross section composed of the groove 68. A groove 69 having an arc-shaped cross section is formed at the base end of the inner surface of the locking flange 64.

The second die 70 is formed on the connecting surface 18 of the extruded profile 12 on the right side in FIG. 7A. The second mold portion 70 includes a pair of intermediate flanges 72 symmetrically extending outward from the middle of the connecting surface 18, an arc surface 74 formed inside the flange 72, and an outer surface of the intermediate flange 72. It has a cross section consisting of a locking groove 76 formed in the base. A groove 79 having an arc-shaped cross section is formed at the base end of the inner side surface of each intermediate flange 72, and an inclined surface 78 is formed at a portion of the connecting surface 18 facing the locking groove 76 on both outer sides. Is formed.

As shown in FIG. 7B, first, the tapered portion 62 of the first mold portion 60 is fitted between the intermediate flanges 72 of the second mold portion 70, and the first mold portion 60 The respective intermediate flanges 72 of the second mold part 70 are fitted into the respective inclined grooves 68. Next, the outer side surface of each locking flange 64 of the first mold part 60 is pressed in the direction of the arrow shown in the figure. Then, each locking flange 64
Pushes the adjacent intermediate flange 72 to the center side, and each locking claw 66 at the tip of the locking flange 64 starts to enter the locking groove 76. Further, as shown in FIG. 7 (C), when each intermediate flange 72 is deformed toward the center, its arc surface 74
The intermediate portion 72 is also clamped between the locking flanges 64 while the tapered portion 62 is clamped between them. and,
Each locking claw 66 at the tip of the locking flange 64 is also locked in the locking groove 76. The grooves 69 and 79 are provided for facilitating the plastic deformation of the locking flange 64 and the intermediate flange 72.

Due to the engagement with the first and second mold portions 60 and 70 and the deformation caused by the caulking, the locking flange 64 and the intermediate flange 72 on both sides are plastically deformed so as to regulate each other with the tapered portion 62 interposed therebetween. Be transformed. As a result, in the vicinity of the connection surface 18 between the extruded profiles 12, even when subjected to a vertical shearing force or an external force in a direction in which the extruded profiles 12 are disengaged from each other, it is almost impossible for the extruded profiles 12 to be broken or to come off from each other. Rarely occurs. Therefore, the floor slab 10 formed by connecting the extruded profiles 12 having the first and second mold portions 60 and 70 becomes light and strong, and causes deformation and breakage even when fixed to the bridge girder 2. It will be difficult.

The present invention is not limited to the embodiments described above. When the bridge girder 2 is replaced with, for example, a beam or a girder, it is apparent that each floor slab 10 can be sufficiently used as a floor slab in a steel structure such as a building or a house. Further, the hard bar 39 in FIGS. 3 to 5 is not limited to a circular cross section, and may be a bar having a cross section of, for example, an elliptical shape, an elliptical shape, or a hexagonal or more regular polygonal shape. Moreover, a pair of hard rods 3 used on the same connecting surface 18
By making the diameter 9 slightly larger than the diameter 9 or by making the cross-sectional areas different from each other, a slab in which a plurality of sections are curved gently as a whole can be formed, and can be used for, for example, an arch bridge.

Further, the tapered portion 62 of the first mold portion 60 in FIG.
Alternatively, the cross section may be an ellipse or an ellipse, or a regular polygon having a hexagon or more, or a modified shape thereof. Although the cross section of the hollow portion 14 of the extruded profile 12 is rectangular, the cross section is an isosceles triangle or trapezoid, and the cross section of the extruded profile 12 is alternately arranged in the reverse direction along the longitudinal direction of the cross section of the extruded profile 12. By doing so, a truss structure can be formed.
Furthermore, if the extruded profile has a flat upper outer surface, it is not necessary to form a hollow portion over the entire cross section. For example, a plurality of hollow portions such as a plurality of rectangular cross sections can be integrally formed at intervals. Or an open profile in which a large number of ribs having an inverted T-shaped cross section are integrally suspended from the lower side of an upper wall plate forming a flat upper outer surface.

In addition, as described above, each floor slab 10 is not limited to a form in which each extruded shape member 12 forming the same is disposed orthogonally between the bridge girders 2 and 2. It is also possible to fix both ends thereof between structural members such as small girders and large pulleys that are joined in a right angle direction or an oblique direction, and to fix them parallel to the bridge girder 2 or the beam, or to incline them. A sheet of synthetic rubber or the like is laid on the upper surface of the flange 4 of the bridge girder 2 and the floor slab 10 is fixed thereon, thereby reducing vibration and fixing the bolts B at both ends of each floor slab 10. The vicinity of the part can be protected.

[0032]

The construction floor slab of the present invention described above has a structure in which a plurality of aluminum alloy extruded members are firmly connected to each other by caulking and are integrated into a structural member such as a bridge girder or a beam. It has the advantage that the load can be reduced and rattling, loosening, deformation and breakage are unlikely to occur. Therefore, the floor slab itself can improve the durability of the structural material that supports the floor slab, and the management of maintenance and the like can be facilitated. In particular, according to the floor slabs of claims 2 and 3, since a pair of hard rods is interposed at the connection between the extruded members forming the slab, it is possible to obtain a more dense and strong connection structure by caulking, A stable slab can be obtained over a long period of time. Furthermore, according to the floor slab of the fifth aspect, the extruded shape member forming the floor slab can be easily fixed to a structural material such as a bridge girder without forming a through hole through which a bolt penetrates.

[Brief description of the drawings]

FIGS. 1A and 1B are partial vertical cross-sectional views along a longitudinal direction and a width direction of a bridge body using a floor slab of the present invention.

FIG. 2 is a perspective view showing a state in which the floor slab of the present invention is bridged between bridge girders constituting the bridge body of FIG. 1;

3 (A) to 3 (C) are partial cross-sectional views showing one form of connection of extruded members forming a floor slab of the present invention by caulking.

4A and 4B are partial cross-sectional views each showing a state in which the floor slab of the present invention is fixed to a bridge girder.

5 (A) to 5 (C) are partial cross-sectional views showing an application mode of connection by caulking between extruded members forming a floor slab of the present invention.

6 (A) to 6 (C) are partial cross-sectional views showing different forms of connection of the extruded members forming the floor slab of the present invention by caulking.

7 (A) to 7 (C) are partial cross-sectional views showing further different forms of connection of the extruded members forming the floor slab of the present invention by caulking.

8A and 8B are partial vertical sectional views of a bridge body using a conventional floor slab, and FIG. 8C is a partial vertical sectional view of a conventional floor slab used for a steel structure such as a building. .

[Explanation of symbols]

 2 Bridge bridge 10 Floor slab 12 Extruded profile 14 Hollow portion 15 Wide concave groove 18 Connection surface 20, 50 Male Mold portions 22, 52 Projected ridges 24 Holding pieces 26 Grooves 30 Female mold portions 32 Flanges 34 Bend pieces 40 Concave portions 44... Convex part 60... First mold part 62... Tip tapered 64... Locking flange 66... Locking claw 70. ……… Intermediate flange 76 ……… Locking groove B ………… Bolt N …………… Nut

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[Procedure amendment]

[Submission date] October 6, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0022

[Correction method] Change

[Correction contents]

First, as shown in FIG.
9 is set as described above, and then the convex part 44 is inserted into the concave part 40, and the male part 20 and the female part 30 are fitted as described above. In this state, the gap 42 is formed between the convex portion 44 and each holding piece 24. Then, when the flanges 32 of the female mold part 30 are pressed in the direction of the arrow so as to be close to each other, as shown in FIG.
Each of the bent pieces 34 and the hard round bar 39 are caulked in the same manner as the connection structure of FIG. 3C, and the fitting between the concave portion 40 and the convex portion 44 is added. Accordingly, since the extruded members 12 are provided with a denser and stronger caulking connection structure by the male mold portion 20 and the female mold portion 30, the floor slab 10 can be made light and strong.

 ──────────────────────────────────────────────────続 き Continuation of the front page (71) Applicant 000186843 Showa Aluminum Co., Ltd. 6224, Kaiyamacho, Sakai-shi, Osaka (71) Applicant 000002277 Sumitomo Light Metal Industries, Ltd. 5-113-3 Shimbashi, Minato-ku, Tokyo ( 71) Applicant 000005290 Furukawa Electric Co., Ltd. 2-6-1 Marunouchi, Chiyoda-ku, Tokyo (71) Applicant 000176707 Mitsubishi Aluminum Corporation 2-3-3 Shiba, Minato-ku, Tokyo (72) Inventor Wataru Hagisawa Ho, 1-34-1 Kambara, Kambara-cho, Abara-gun, Shizuoka Prefecture Inside the Nippon Light Metal Co., Ltd. Group Technology Center (72) Inventor Hiromitsu Ishikawa 1-34-1 Kambara, Kambara-cho, Abara-gun, Shizuoka Prefecture Inside the Nippon Light Metal Co., Ltd. Group Technology Center

Claims (6)

[Claims] 1. A floor slab which is connected by fitting and caulking a plurality of extruded profiles made of aluminum alloy, wherein a male portion is provided on a connecting surface at one end of the extruded profile and a male portion is provided at the other end. A female mold part is formed on the connection surface, and a pair of flanges forming the female mold part are formed to be slightly diagonally outwardly expanded, and between the flanges of the female mold parts of one of the extruded profiles adjacent to each other, A floor slab for a building, wherein the male part of the other extruded member is fitted, and the pair of flanges of the female part are caulked so as to be close to each other. 2. The male part of the extruded profile has a ridge protruding from the center of the connecting surface of the profile, a pair of holding pieces extending outward from the tip of the ridge, and holding these. It has a pair of concave grooves formed between the piece and the connection surface, a hard rod is inserted into the concave grooves, the female part of the extruded profile is inward from the tip of the pair of flanges. While having a bent piece extending, while inserting each bent piece of the female part into each gap between the connection surface of the male part and the hard rod, caulking so that the pair of flanges come close to each other. The floor slab for a building according to claim 1, wherein the slab is provided. 3. A male part having a concave portion formed at a tip of a convex streak, and a convex portion fitted to said concave portion formed at a center between a pair of flanges of said male type portion. A floor slab for a structure according to any one of the above. 4. A floor slab that is connected by fitting and caulking a plurality of extruded profiles made of an aluminum alloy, wherein the extruded profiles are connected to a connecting surface at one end from a central tapered strip and from both sides. A second mold having a first mold portion having a pair of locking flanges extending slightly obliquely outward, and a pair of intermediate flanges extending slightly obliquely outward on a connecting surface at the other end capable of holding the tapered strip. Forming a part, a tapered strip of the first mold part is fitted between a pair of intermediate flanges of the second mold part, and each locking flange of the first mold part is caulked so as to be close to each other. And a locking claw at the tip of each locking flange is locked in a locking groove at an outer base of each intermediate flange. 5. The extruded profile has a hollow portion extending in the direction of extrusion, and a wide bottom groove formed on one outer surface of the hollow portion is integrally formed in the hollow portion. 5. The floor slab for a construct according to any one of items 1 to 4. 6. The floor slab is bridged between a plurality of bridge girders in a bridge, or is bridged between a plurality of beams or girders in a building or the like and fixed with bolts and nuts. The floor slab for a building according to any one of claims 1 to 5, wherein: