JP2875224B2 - Residential concrete pulling for houses - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a reinforced concrete pulley useful for ordinary houses.

[0002]

2. Description of the Related Art Generally, in wooden house floor construction, FIG.
As is suggested from 0, it is customary to support each of the large pullers (a) by a plurality of concrete bases (1) laid and fixed on the ground, shingles (2) and bunches (3), Some of the concrete prefabricated houses are shown in Figs.
There is also seen an example in which a floor construction is carried out by using a reinforced concrete gibber (b) formed in a gate shape such as 2.

[0003]

However, in the case of the former, there is an advantage that a large space under the floor can be ensured, and it is easy to perform access to the inspection work, piping and wiring work, etc., but on the other hand, each of the bundles (3) is large. Since it is necessary to fasten and integrate the draw (a) and the slab (2) via the hardware (4) and (5), the work is very complicated and the wooden size is large. The pull (a) and the bundle (3) are liable to cause termite damage, corrosion, floor noise, and the like, and there is also a problem of poor durability.

On the other hand, in the latter floor construction using the reinforced concrete gibber (b), the work can be performed relatively efficiently, but the rigidity of the horizontal bar portion (6) in the gibber (b) is increased. In order to prevent cracks, the height (h1) of the height (h1) must be reduced to at least about 1/2 of the overall height (h2) including the pillar (7).

[0005] In this case, the bulk (b) itself becomes heavier, which is disadvantageous in terms of transportation, and the space under the floor is relatively reduced due to the standardized height of the floor. As a result, it is difficult to perform access work such as inspection work, plumbing and wiring work.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to improve such a problem. For this purpose, a pair of pillars and a horizontal bar portion interposed therebetween are used to improve the overall gate shape. In a reinforced concrete pulley forming a mold, the height of the horizontal bar is increased by applying a prestressing method or a post-tensioning method to the horizontal bar, even if the overall height including the pillars is large. It is characterized by being reduced to about 1/3.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show a reinforced concrete pulley (A) of the present invention corresponding to the conventional product of FIGS. Needless to say, a pair of opposing pillars (11)
And a horizontal bar portion (12) extending between them, and is formed into an overall gate-shaped shape. In particular, the height (H1) of the horizontal bar portion (12) is different from that of the conventional product. Differently, by being given a prestressing method by a pre-tensioning method or a post-tensioning method, the height is reduced to about 1/3 or less of the total height (H2) including the pillar (11). It has features.

That is, according to the invention (A), one P is arranged and arranged along the horizontal bar portion (12).
High-strength PC steel material (13) such as C steel rod or PC steel wire,
The horizontal bar portion (12) is prestressed by tensioning it with a certain tension in advance and releasing the tension after the concrete is cast and hardened. However, instead of such a pretensioning method,
After placing and hardening concrete, its horizontal bar (12)
However, it is possible to apply pre-stress by the post-tensioning method by applying pressure to the substrate.

In this respect, to give a specific example, the overall height (H2) of the pull (A) according to the present invention is 50%.
0 mm, length (L) 3600 mm, width (W) 120
mm, assuming the same dimensions as those of the conventional product, assuming that the height (h1) of the horizontal bar portion (6) in the conventional reinforced concrete pulley (b) is 220 mm and the height (h2) of the overall height (h2) is 220 mm. The height (H1) of the horizontal bar portion (12) in the pull (A) of the present invention is set to 160 mm, while the height (H1) of the horizontal bar portion (12) of the present invention is large, at a ratio corresponding to about 1/2. The rigidity of the horizontal bar portion (12) is set at least equal to that of the conventional product by the application of the prestress.

In the above example, as suggested by the enlarged cross-sectional view of FIG. 2, a single rod is used to cancel the stress generated when a load is applied to the horizontal bar (12) of the large (A). PC
A steel material (PC steel bar) (13) is arranged about 2/3 from the upper surface of the horizontal bar portion (12) to its height (H1) and arranged on the vertical center line. ) Is given about 8 tons of prestress,
The PC steel (13) as long as the stress can be canceled and does not interfere with the internal reinforcing steel (14).
May be installed side by side in a vertical positional relationship or a horizontal lateral positional relationship.

Further, in forming the above-mentioned pulling (A), a plurality of wooden bricks (15) as shown in FIGS. 3 and 4 exposed on the upper surface of the horizontal bar portion (12) or FIG. It is desirable to embed and integrate a plurality of insert fittings (16) in a regular dotted distribution state at a constant pitch (for example, 300 mm) (P).

In this case, the horizontal bar portion (1) is provided by a wood screw (17) driven into each wooden brick (15) or a screw (18) screwed to the insert fitting (16).
This is because a plurality of joists (19) can be directly and efficiently attached and fixed at a constant pitch (P) to the upper surface of (2), thereby improving workability.

More specifically, in addition to the embedding of the wooden bricks (15) and the insert fittings (16), the horizontal bar portions (12) of the wooden bricks (15) are driven by driving wood screws (17) and fastening screws (18). It is most effective to fix and install a wooden joist receiver (20) as shown in FIGS.

[0014] Cover the horizontal bar (1)
A plurality of joists (19) can be attached and fixed at a desired free interval pitch on the upper surface of the integrated joist receiver (20) attached to (2), increasing the versatility in arrangement and construction. Because it can be obtained. In that case, the joist support (2
Preferably, the upper surface of 0) is subjected to planar processing to improve its planarity, and the lower surface of the joist receiver (20) is also subjected to creosote coating for antiseptic purposes.

The general structure (A) of the present invention constructed as described above comprises a pair of opposing pillars (11) and a horizontal bar (12) interposed between them, so as to form an overall gate. Since it is a reinforced concrete product that forms a mold, when carrying out the floor construction of a house, its large scale (A) is inserted and arranged between adjacent ones of the reinforced concrete fabric foundation (21) as shown in FIGS. Then, it is sufficient if the two pillars (11) and the cloth foundation (21) are fixedly integrated by injecting and filling the joint cement mortar (22), and the construction work can be performed very simply and efficiently. (23) is a base and (24) is a cement mortar for leveling.

In this case, a plurality of wooden bricks (15) exposed on the upper surface of the horizontal bar portion (12) of the bar (A)
Alternatively, if the insert fitting (16) is embedded and integrated in a dotted distribution state at a constant pitch (P) in advance,
A wooden screw (17) is driven into the wooden brick (15),
Alternatively, the joist (19) can be quickly attached and fixed by screwing the screw (18) to the insert metal fitting (16), and the workability is improved.

Also, a wood screw (17) to be driven into the wood brick (15) and a screw (1) to be fastened to the insert fitting (16).
If a joist receiver (20) is previously attached to the horizontal bar portion (12) of the pulling pulley (A) via 8), the joist (19) can have a desired free pitch. In addition, the arrangement can be performed quickly, which is more convenient and versatile.

In any case, the floor height of the house is standardized to a certain level. However, the height (H1) of the horizontal bar portion (12) in the bar (A) of the present invention is determined by its pillar ( 11) is compressed to extremely small dimensions, at most about one-third of the total height (H2) including the height of the floor, and the space under the floor is relatively reduced as much as possible while keeping the floor height constant. As a result, it is possible to perform inspection work under the floor, piping and wiring work without any trouble. In this sense, it has practical benefits that can be widely applied not only to concrete prefabricated houses but also to general wooden houses and steel-framed houses.

Further, the horizontal bar (1)
2) The height (H1) is given by the application of prestress.
Since it is compressed to a small size, it exhibits high rigidity, does not cause termite damage, corrosion, floor noise and vibration, and can be used semipermanently.

[0020]

As described above, according to the present invention, a pair of pillars (11) and a horizontal bar (12) spanning between the pillars (11) form an overall bridge-shaped reinforced concrete giant ( In A), the height (H1) of the horizontal bar (12) is also given to the pillar (11) by applying prestressing to the horizontal bar (12) by a pretensioning method or a post-tensioning method. Total height including (H2)
Is reduced to about 1/3 at most, so that the problems of the prior art mentioned at the beginning can be surely improved, and the actual profit is remarkably large not only for concrete prefabricated houses but also for general wooden houses. is there.

According to another aspect of the present invention, a wooden screw (17) is driven into a wooden brick (15) embedded and integrated on the upper surface of the horizontal bar portion (12), or an insert is similarly inserted. By screwing the screws (18) to the metal fittings (16), the joists (19) can be quickly and efficiently attached and fixed, and the workability thereof is excellent.

In particular, if the structure of claim 3 is adopted,
Since the joist receiver (20) is fixed and integrated in advance on the upper surface of the horizontal bar portion (12), the joists (19) can be attached and fixed at a free interval pitch. This has the effect of increasing the above versatility.

[Brief description of the drawings]

FIG. 1 is a side view of a reinforced concrete pulley according to the present invention.

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

FIG. 3 is a plan view showing a large-scale construction state.

FIG. 4 is a cross-sectional view showing a state in which joists are attached to a pulling bar.

FIG. 5 is a partially enlarged sectional view showing another mounting state corresponding to FIG. 4;

FIG. 6 is a cross-sectional view showing a fixed installation state of the joist support with respect to the pulling.

FIG. 7 is a plan view of FIG. 6;

8 is a cross-sectional view showing another fixed installation state corresponding to FIG.

FIG. 9 is a plan view showing a conventional wooden pulley corresponding to FIG. 3 in a construction state.

FIG. 10 is an enlarged side view of FIG. 9;

FIG. 11 is a side view showing the conventional reinforced concrete pulley corresponding to FIG.

FIG. 12 is an enlarged sectional view taken along line 12-12 of FIG. 11;

[Explanation of symbols]

 (11) ・ Pedestal part (12) ・ Horizontal bar part (15) ・ Wooden brick (16) ・ Insert metal fittings (17) ・ Wood screw (18) ・ Screw (19) ・ Joint (20) ) · Height (H2) · Overall height (P) · Constant pitch

Claims (3)

(57) [Claims] 1. A gantry-shaped large reinforced concrete (A) comprising a pair of pillars (11) and a horizontal bar (12) extending between the pillars (11). By applying a prestressing method or a pretensioning method to (12), the height (H1) of the horizontal bar portion (12) is reduced to the height (H2) of the entire height including the pillar portion (11). At most about 1
A reinforced concrete sculpture for houses characterized in that it has been reduced to / 3. 2. A joist (19) is provided on the upper surface of the horizontal bar (12).
Wood brick (15) or insert fitting (1)
6. A reinforced concrete sculpture according to claim 1, wherein 6) is buried and integrated in a dotted distribution state at a constant pitch (P). 3. A wooden brick (1) is provided on the upper surface of the horizontal bar (12).
5) or insert metal fittings (16) are embedded and integrated in a dotted distribution state at a constant pitch (P), and are combined with wood screws (17) or insert metal fittings (16) driven into the wood brick (15). Screw (18) to be screwed together
2. A reinforced concrete sculpture according to claim 1, wherein the joist receiver (20) is fixedly installed on the upper surface of the horizontal bar portion (12).