JP3011707B1 - Architectural floor structural materials - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To provide an architectural floor structural material which can be manufactured easily and at low cost. SOLUTION: A substrate 1 in which a plurality of ridges 2 are provided on an upper surface in parallel at a predetermined interval from each other, and a single reinforcing bar is bent to form a three-dimensional wave shape, and the adjacent one on the substrate 1 is formed. And a three-dimensional corrugated line 5 disposed along the concave ridge portion 3 formed between the matching two convex ridge portions 2, 2. A plurality of locking portions 6 are provided which are locked to corner portions K between the side walls of the strips 2 and 2 facing each other and the upper surface of the substrate 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structural material for a building, which is used when a concrete building is erected between beams and concrete is cast thereon to form a concrete slab.

[0002]

2. Description of the Related Art Conventionally, as this type of building floor structural material, there is, for example, a material described in JP-A-10-169065. This building floor structural material is one in which a three-dimensional truss is arranged on a substrate, and the three-dimensional truss is formed by arranging two plane corrugated bars in an isosceles triangular shape with the upper main reinforcing bar as a vertex, The upper main reinforcing bar and the upper edges of the two plane corrugated bars are fixed to each other, and each planar corrugated bar is formed by bending one reinforcing bar into a plane corrugated shape.

[0003]

In the above-mentioned conventional building floor structural material, in order to manufacture a three-dimensional truss, an upper main reinforcing bar and two planar corrugated reinforcing bars are formed in an isosceles triangular shape having the upper main reinforcing bar as a vertex. It takes a lot of time and effort to manufacture, as it is necessary to keep the opposite angle of the two plane corrugations stably in the manufacture,
The cost was high. Moreover, in the conventional building floor structural material, the lower surface side of the substrate is formed almost flat, so that the ceiling plate mounting bracket cannot be easily attached to the substrate.

[0004] The present invention has been made in view of the above,
An object of the present invention is to provide an architectural floor structural material which can be easily manufactured and can be manufactured at low cost. It is another object of the present invention to provide a building floor structural material capable of easily attaching a ceiling plate mounting bracket to a lower surface side of a substrate.

[0005]

According to a first aspect of the present invention, there is provided an architectural floor structural material comprising: a substrate having a plurality of ridges provided on an upper surface thereof in parallel at a predetermined interval; Is a three- dimensional waveform formed by bending a three-dimensional wavy shape.
Two three-dimensional corrugations 5,5 '
Set so that the parts 5a and 5a 'cross each other and overlap
And the combined three-dimensional corrugated lines 5, 5 '
Two three-dimensional corrugated lines 5, 5 'arranged along
These three-dimensional corrugated stripes 5 and 5 ′ are locked at the lower ends on both left and right sides thereof at corners K between the opposing side walls of the adjacent ridges 2 and 2 and the upper surface of the substrate 1. It is characterized by comprising a plurality of locking portions 6.

According to a second aspect of the present invention, in the building floor structure material according to the first aspect, a concave groove 4 is formed on the lower surface of the substrate 1 by each of the convex portions 2 on the upper surface of the substrate 1. No. 4 is characterized in that the width of the groove opening 4a is smaller than the width of the groove inside 4b.

A third aspect of the present invention is the floor structural material for building according to the first or second aspect, wherein the three-dimensional corrugated reinforcing strips 5, 5 'are provided with:
A main longitudinal streak 7 along the length direction is fixed to the tops 5a, 5a ', and auxiliary longitudinal streaks 8, 8 along the length direction are fixed to lower portions on both left and right sides.

According to a fourth aspect of the present invention, in the floor structural material for building according to the third aspect, the main horizontal streaks 9 are disposed so as to be orthogonal to the main vertical streaks 7, and the auxiliary horizontal streaks 10 are connected to the auxiliary vertical streaks 8. It is characterized by being arranged so as to be orthogonal to.

[0009]

1 is an external perspective view of a floor structure material for construction according to the present invention, FIG. 2 is an enlarged sectional view taken along line XX of FIG. 1, and FIG. 3 is an enlarged plan view of the floor structure material for construction. FIG. In these figures, reference numeral 1 denotes an iron plate substrate on which a plurality of ridges 2 are provided in parallel on a top surface of the substrate 1 at regular intervals, and a recess is provided between adjacent ridges 2. A ridge 3 is formed. Each protruding ridge 2 forms a concave groove 4 which opens on the lower surface side of the substrate 1, and the width of the groove opening 4a is larger than the width of the groove inside 4b as shown in FIG. It is getting smaller. 5,5 '
Are three-dimensional corrugated bars formed by bending one reinforcing bar to form a three-dimensional wavy shape, and are arranged along the concave stripes 3 on the substrate 1.

As shown in FIGS. 1 to 3 and 4, the three-dimensional waveform stripes 5 and 5 'are formed in a mountain shape or an inverted V-shape in a front view and in a mountain shape in a plan view and a side view. The lower ends of the left and right sides of the three-dimensional corrugated stripes 5 and 5 ′ are substantially locked in a concave groove-shaped corner K between the opposing side walls of the adjacent ridges 2 and 2 and the upper surface of the substrate 1. U-shaped locking portions 6, 6 'are formed at a constant pitch.

In order to attach and fix the three-dimensional corrugated lines 5, 5 'on the substrate 1, the lower portions of the three-dimensional corrugated lines 5, 5' are inserted into the concave ridges 3 between the adjacent convex ridges 2, 2. Then, the locking portions 6 on the left and right sides are locked to the concave corner portions K between the opposing side walls of the adjacent ridges 2, 2 and the upper surface of the substrate 1, and the contact portion with the substrate 1 is welded. I just need. In this case, the three-dimensional waveforms 5 and 5 'are manufactured so that the distance between the tips of the locking portions 6 and 6' on the left and right sides is slightly longer than the interval between the opposed corners K and K. Each locking part 6, of the streaks 5, 5 '
6 'is elastically engaged with the corner portion K with an appropriate pressure,
Welding is performed in this state.

More specifically, the two three-dimensional waveform bars 5, 5 'are connected to the top portions 5a, 5a' of the two three-dimensional waveform bars 5, 5 '.
The two-dimensional corrugations 5, 5 'are arranged along the concave stripes 3 of the substrate 1 so as to be overlapped with each other so as to cross each other. As can be seen from FIG. In the grounded state, the height of each apex 5a of one three-dimensional corrugated muscle 5 is formed to be lower than the height of each apex 5a 'of the other three-dimensional corrugated muscle 5' by the diameter of one reinforcing bar. Then, both three-dimensional waveform streaks 5,
The tops 5a, 5a 'of the three-dimensional corrugated strips 5, 5' are crossed and overlapped one above the other while the 5's are shifted from each other by one pitch of the waveform in the length direction, and the cross portion is welded. Then, the lower ends of the two-dimensional corrugated lines 5, 5 'assembled in this way are
And the locking portions 6 and 6 ′ are locked to the corner portions K, respectively, and the contact portions with the substrate 1 are welded.

[0013] A main longitudinal streak 7 extending in the longitudinal direction is fixed to the top 5a 'of one of the three-dimensional corrugated lines 5' and 5 '. ,
At the lower left and right sides of 5 ′, auxiliary longitudinal streaks 8 along the length direction,
8 are arranged and fixed by welding. On each main longitudinal line 7, a main transverse line 9 connecting the main longitudinal lines 7 is arranged so as to be orthogonal to the main longitudinal line 7 and fixed by welding. On the auxiliary vertical streaks 8, auxiliary horizontal streaks 10 connecting the auxiliary vertical streaks 8 are arranged so as to be orthogonal to the auxiliary vertical streaks 8 and fixed by welding.

According to the combined three-dimensional waveform streaks 5, 5 'as described above, the strength can be doubled as compared with the case of one three-dimensional waveform streak 5, and the manufacture is relatively easy. In addition, the main vertical line 7, the auxiliary vertical line 8,
By arranging the main horizontal streaks 9 and the auxiliary horizontal streaks 10, it is possible to provide an architectural floor structural material having higher strength.

The floor structural material for construction having the above-mentioned structure is formed by fixing the three-dimensional corrugated lines 5, 5 'to the substrate 1 in a factory or the like, and the three-dimensional corrugated lines 5, 5', the main vertical line 7, and the auxiliary members. The vertical streaks 8, the main horizontal streaks 9 and the auxiliary horizontal streaks 10 may be fixed to each other to assemble the entire structural material integrally. However, doing so increases the weight of the entire structural material, making it difficult to transport it to the site. Therefore, the substrate 1, the three-dimensional corrugated lines 5, 5 ', the main vertical streaks 7, the auxiliary vertical streaks 8, the main horizontal streaks 9, and the auxiliary horizontal streaks 10 may be individually transported to a construction site, and assembled at the site.

Further, the corrugated reinforcement 5, 5
5 'is formed in a three-dimensional wave shape, and is provided at the lower end portions on both left and right sides thereof at corner portions K, K between the opposing side walls of the adjacent ridges 2, 2 adjacent on the substrate 1 and the upper surface of the substrate 1. Since a plurality of locking portions 6 and 6 'to be locked are provided and the structure is such that it can be self-supported in a stable state, the three-dimensional waveform streaks 5, 5'
When mounting on the substrate 1, the lower ends of the three-dimensional corrugated lines 5, 5 ′ are inserted into the concave ridges 3 between the adjacent convex ridges 2, 2 and the locking portions 6, 6 ′ are cornered. It suffices only to lock the portion K, so that the positioning becomes simple, the work of attaching the three-dimensional corrugated lines 5, 5 'can be performed easily and quickly, and this is particularly effective when assembling on site. In addition, three-dimensional waveform stripes 5, 5 '
Are formed in a three-dimensional corrugated shape by bending one reinforcing bar, respectively, and are easier to manufacture than three-dimensional corrugated bars formed using two or more reinforcing bars.

In this construction floor structural material, each protruding ridge 2 provided on the upper surface of the substrate 1 forms a concave groove 4 opening to the lower surface side of the substrate 1, and the concave groove 4 is Since the width of the groove opening 4a is smaller than the width of the groove inside 4b, the corner K between the opposing side walls of the adjacent ridges 2 and 2 and the upper surface of the substrate 1 becomes concave. Therefore, the three-dimensional waveform lines 5, 5 '
Of the three-dimensional corrugation 5, 5 'to the substrate 1
In addition to being more stable in mounting and making positioning easier,
Fewer welds are required.

The method of using the building floor structural material assembled as described above is as shown in FIG. 2. Like the conventional building floor structural material, the building floor structural material is supported by the beam 11 and installed. The slab is formed by casting concrete. An imaginary line 12 in the figure indicates the upper surface of a concrete slab cast and formed on site. When the concrete slab is used as a floor slab and the ceiling plate 13 is attached to the floor slab, as shown in FIG. The upper end of the ceiling plate mounting bracket 14 having a well-known structure is engaged, a hanging bolt 15 is screwed into the mounting bracket 14, a hanger 16 is attached to the lower end of the hanging bolt 15, and the hanger 16 17 is supported by the field support 17
8, and the ceiling plate 13 is attached to the edge 18.

The ceiling plate mounting bracket 14 is formed by bending a metal strip in a substantially upward U-shape, and forming two-sided holding plates 14a, 14a on its upper side. At the upper end portions of the holding plate portions 14a, 14a are formed two engaging claws 14b, 14b for engaging with the concave grooves 4 of the substrate 1, and the bottom plate portion 1
4c is provided with a screw hole 14d.
By inserting a suspension bolt 15 screwed in from the screw hole 14d between the two U-shaped sandwiching plate portions 14a, 14a, the both engaging claw portions 14b, 14b are pushed open and the inside of the concave groove 4 of the substrate 1 is formed. , So that the ceiling hanging bolt mounting bracket 14 is attached to the substrate 1.

The groove 4 of the substrate 1, that is, the groove 4 in which the width of the groove opening 4a is smaller than the width of the groove inside 4b,
It is not limited to the ceiling plate mounting bracket 14 having the above-described structure, and any ceiling plate mounting bracket having any structure can be used as long as it has an engaging member capable of engaging with the concave groove 4. it can.

FIG. 5 shows a substrate 1, a combined three-dimensional waveform 5,
5 ', main longitudinal line 7, auxiliary vertical line 8, main horizontal line 9, and auxiliary horizontal line 1
In the construction floor structural material made of zero, the lower longitudinal reinforcement 19 is provided below the main longitudinal reinforcement 7, so that the strength of the construction floor structural material can be further increased. In FIG. 5, reference numeral 20 denotes a connecting bar connecting the main vertical bar 7 and the lower vertical bar 19.

In the above-described embodiment, a floor structure for building is provided in which the main vertical bars 7, the auxiliary vertical bars 8, the main horizontal bars 9, the auxiliary horizontal bars 10, and the lower vertical bars 19 are arranged in the combined three-dimensional corrugated bars 5, 5 '. Although the material has been described, the main vertical streaks 7, the auxiliary vertical streaks 8, the main horizontal streaks 9, the auxiliary horizontal streaks 10, and the lower vertical streaks 19 are omitted, and only the combined three-dimensional waveform streaks 5, 5 'are disposed on the substrate 1. Can be something,
Further, the main vertical line 7 and the auxiliary vertical line 8 may be arranged on the substrate 1 in combination three-dimensional waveform lines 5, 5 '.

[0023]

According to the floor structural material for construction according to the first aspect of the present invention, the corrugated line is formed in a three-dimensional wave shape,
At the lower ends on the left and right sides of the three-dimensional corrugated stitch, a plurality of locking portions are provided which are locked to the corners between the opposing side walls of the adjacent ridges on the substrate and the upper surface of the substrate. Because it has a structure that can stand alone in a stable state, when attaching the three-dimensional corrugated streaks to the upper surface of the substrate, insert the lower end of the three-dimensional corrugated streaks into the concave streak between the adjacent ridges and lock It is only necessary to lock the three-dimensional corrugations at the corners, so that the positioning can be simplified, the work of attaching the three-dimensional corrugated streaks can be performed easily and quickly, and this is particularly effective when assembling on site. In addition, since the three-dimensional corrugated bar is formed by bending one rebar and forming a three-dimensional corrugated shape, it is easier to manufacture than a three-dimensional corrugated bar formed by using two or more rebars. Cost can be reduced.

[0024] As described in the first aspect, the two-dimensional corrugated muscles are combined so that the tops of the three-dimensional corrugated muscles cross each other and overlap each other, and the combined three-dimensional corrugated muscles are arranged along the concave streak. 2
By the combination structure of three three-dimensional corrugated bars, the strength can be doubled as compared with a building floor structural material in which one three-dimensional corrugated bar is arranged on a substrate, and the production is relatively easy.

According to the second aspect of the present invention, the concave groove formed on the lower surface of the substrate by the respective convex ridges on the upper surface of the substrate has a groove opening width smaller than the inner width of the groove. By using the strip, the ceiling plate mounting bracket can be easily mounted, and the mounting operation of the ceiling plate can be easily performed.

According to a third aspect of the present invention, a main longitudinal streak along the length direction is fixed to the top of the three-dimensional corrugated streaks, and auxiliary longitudinal streaks along the length direction are provided at the lower left and right sides of the three-dimensional corrugated streaks. By fixing, the strength of the building floor structure material can be increased.

According to a fourth aspect of the present invention, a main horizontal streak is arranged so as to be orthogonal to the main longitudinal streak, and an auxiliary horizontal streak is arranged so as to be orthogonal to the auxiliary longitudinal streak. The strength of the structural material can be further increased.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing a building floor structural material according to the present invention.

FIG. 2 is an enlarged sectional view taken along line XX of FIG.

FIG. 3 is an enlarged plan view of the building floor structure material.

FIG. 4 is a perspective view showing a combined three-dimensional corrugated muscle, and a main longitudinal muscle, an auxiliary longitudinal muscle, a main horizontal muscle, and an auxiliary horizontal muscle arranged thereon.

FIG. 5 is a cross-sectional view of a floor structural material for construction in which a lower longitudinal bar is disposed below a main longitudinal bar in a combined three-dimensional corrugated bar.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 2 Convex ridge 3 Concave ridge 4 Concave groove 5 Three-dimensional corrugation 5 'Three-dimensional corrugation 5a Top of three-dimensional corrugation 5 5a' Top of three-dimensional corrugation 5 '6 Locking part of three-dimensional corrugation 5 Locking part of three-dimensional corrugated bar 5 '7 Main longitudinal bar 8 Auxiliary vertical bar 9 Main horizontal bar 10 Auxiliary horizontal bar

Claims (4)

(57) [Claims] 1. A substrate having a plurality of ridges provided on an upper surface thereof in parallel with each other at regular intervals, and a three-dimensional corrugated bar formed by bending one reinforcing bar into a three-dimensional corrugated shape , These two
The three-dimensional corrugated muscle crosses the top of both three-dimensional corrugated muscles
Combine them so that they match each other.
Two three-dimensional corrugated bars arranged along the concave portion,
These three-dimensional corrugated stitches are provided with a plurality of locking portions at the lower end portions on both left and right sides thereof , which are locked at corner portions between the opposing side walls of the adjacent ridges and the upper surface of the substrate. An architectural floor structural material characterized by that: 2. A concave groove is formed on the lower surface of the substrate by each convex line on the upper surface of the substrate, and the width of the groove opening is smaller than the inner width of the groove. The building floor structural material according to claim 1, wherein: 3. The three-dimensional corrugated streaks have a main longitudinal streak fixed along the longitudinal direction at the top thereof, and auxiliary longitudinal streaks along the longitudinal direction fixed at lower portions on both left and right sides. The building floor structural material according to claim 1 or 2, wherein 4. The apparatus according to claim 3, wherein a main horizontal streak is disposed so as to be orthogonal to the main longitudinal streak, and an auxiliary horizontal streak is disposed so as to be orthogonal to the auxiliary longitudinal streak. Floor structural materials for construction.