JP3777667B2 - Fabric foundation unit and fabric foundation construction method using the unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fabric foundation unit and a fabric foundation method using the unit for constructing a fabric foundation that forms the foundation of housing construction.
[0002]
[Prior art]
The fabric foundation provided continuously along the lower part of the main frame, such as the outer periphery of the building or under the partition, is mainly composed of reinforced concrete that has recently been manufactured in the factory in advance in terms of shortening the work period and improving work efficiency. The standard unit is used, and the standard unit is continuously arranged on the concrete placed at the bottom of the root, and the joining pin is inserted into the joining bracket embedded in the standard unit and integrated, and then joined. A method is adopted in which mortar is filled in the vertical holes formed in the section to form an integral fabric foundation.
[0003]
[Problems to be solved by the invention]
As shown in FIG. 10, the standard unit used for such a conventional construction method has an I type (A, B, C in the figure) having a predetermined thickness and width, and L as shown in FIG. There are four types: a type (D in the figure), a T type (E in the figure), and a cross type (F in the figure).
Therefore, since it is necessary to prepare a plurality of standard units of different types in advance for the construction of the fabric foundation, there is a drawback that does not lead to cost reduction.
Furthermore, these standard units, for holding the standard unit stable to Excavation bottom, but would also be present which projects integrally footing at a lower end portion, when the transport from the factory to the construction site, the shape Different standard units coexist and have many problems to be solved practically, such as requiring cumbersome work for loading and unloading.
[0004]
In view of the present situation, the present invention limits the standard unit used for construction of the fabric foundation to a specific type, and appropriately selects and uses various types of joint fittings. Is intended to eliminate.
[0005]
In order to achieve the above object, the invention according to claim 1 of the present invention provides:
It consists of a plurality of beam main bodies that differ only in length, and a connecting bracket for connecting the plurality of beam main bodies to each other,
The beam main body is
A rectangular plate-shaped body made of concrete having a predetermined thickness, with a joining plate in a state where the tip part protrudes from the end face in the notch part formed through the front and rear faces on the upper and lower sides of the left and right end faces, respectively. In addition to fixing, in the lower part of the front and back wall surface of the plate-like body, each of the sleeve metal fittings for reinforcing bars is embedded and fixed at a predetermined interval,
The connecting bracket is
A cloth foundation unit comprising only a plate metal fitting, an L-shaped metal fitting, and a square metal fitting .
[0006]
The invention according to claim 5 of the present invention is
A rectangular plate-shaped body made of concrete having a predetermined thickness, with a joining plate in a state where the tip part protrudes from the end face in the notch part formed through the front and rear faces on the upper and lower sides of the left and right end faces, respectively. A plurality of beam main bodies having different lengths, each of which is fixed and embedded in and fixed to a lower part of the front and back wall surfaces of the plate-like body at predetermined intervals, respectively.
Using a metal fitting consisting of only a plate metal fitting, an L-shaped metal fitting, and a square-shaped metal fitting for connecting these beam main bodies to each other,
Arranging products et along the beam mainly in Excavation bottom, a bonding plate adjacent contact beams mainly straight beams mainly by selecting the connecting fitting, L-shaped, T-shaped, cross-shaped, Y Connected to each other in a letter shape and a square shape,
After filling the mortar using a formwork for each connecting part to maintain continuity and engaging one end of the reinforcing bar for footing formation with the sleeve metal fitting at the bottom of each beam,
This is a cloth foundation construction method in which concrete is placed and a foot foundation is integrally attached to a beam main body to construct a cloth foundation.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
In the fabric foundation unit of the present invention , members used for construction of the fabric foundation are several types of beam main bodies 1a to 1k having different lengths , and these beam main bodies 1a to 1k are connected to each other according to the adjacent state. There are only three types of connection fittings.
[0008]
The beam main bodies 1a to 1k are made of a concrete block having a rectangular shape whose side faces are horizontally long and have a predetermined thickness. The concrete to be used may be ordinary concrete, lightweight concrete, cellular concrete, or prestressed concrete called PC.
These beams mainly 1a~1k is one in which sequentially disposed nitrous et beforehand dug Excavation bottom on X, in the present invention, Excavation bottom X is T-shaped, L-shaped, cross Even if it is formed into a shape, Y shape or even a square shape, the biggest feature is that the fabric foundation is constructed using beam main bodies 1a to 1k having the same shape, all differing only in length. Have.
[0009]
This beam main body 1 is formed by molding the concrete into a rectangular shape having a predetermined thickness using a formwork to form a plate-like body, and penetrating the front and rear wall surfaces at two locations on the upper and lower end surfaces. forming a shaped notch 3,3,3,3, in a state where the top portion of each notch 3,3,3,3 was shown protruding from the end surface, embedding the respective junction plate 2,2,2,2 with solid Chakusuru, the front and rear wall, respectively the sleeve component 4,4,4 ... rebar distribution設用plurality arranged at a predetermined interval.
Further, on the upper surface of the beam main body 1, a sleeve metal fitting 6 for engaging a base fixing bolt 8 is embedded and fixed at a predetermined interval. Incidentally, the notch portion is formed on the beam body 1 3, Ru is provided so that the front and rear walls and end the communication with each other.
[0010]
There are only three types of connection fittings for connecting the main beams to each other: the plate fitting 10, the L-shaped fitting 20, and the square-shaped fitting 30.
That is, the plate metal fitting 10 is formed by forming a pair of bolt insertion holes 11 and 12 on a flat plate body made of a steel material such as stainless steel with a predetermined interval, and as shown in FIG. The joint plates 2a and 2b projecting from the end faces of the beam main bodies 1a and 1b arranged so that the end faces face each other are sandwiched from both sides, the bolts 13 are inserted from one plate fitting 10 side, and on the other plate fitting 10 side A nut 15 is engaged with a protruding tip of a bolt 13 via a washer 14 to integrally join and hold the beam main bodies 1a and 1b. Note that it is desirable that the bolt insertion hole has an adjustment width in the left-right direction by being a long hole.
[0011]
The L-shaped bracket 20 is formed by bending a central portion of a flat plate made of a steel material such as stainless steel at a right angle into an L shape, and forming bolt insertion holes 21 and 22 on each plate surface, As shown in FIG. 4, the L-shaped metal fittings 20 and 20 are brought into contact with the beam main bodies 1c and 1d arranged in an L shape so that the end faces are orthogonal to each other, the bolt 13 is inserted from one L-shaped metal fitting, and the other By engaging a nut 15 with a bolt 13 protruding from the L-shaped metal fitting 20 via a washer 14, the beam main bodies 1c and 1d are integrally connected to each other.
[0012]
The L-shaped metal fitting 20 can be used in combination with the plate metal fitting 10 to join the beam main bodies 1e, 1f, 1g into a T-shape. That is, as shown in FIG. 5, the beam main bodies 1e and 1f are arranged on a straight line so that the end faces are opposed to each other, and the substantially central portion where the joint plates 2e of the two beam main bodies 1e and the joint plates 2f of the beam main bodies 1f are opposed to each other. The beam main body 1g is arranged at right angles to form a T-shape as a whole, and the plate main body 10e is joined to the outer side of the bonding plate 2e of the beam main body 1e and the bonding plate 2f of the beam main body 1f. The L-shaped metal fitting 20 is in contact with the outside of the joining plate 2g of the plate 2e and the beam main body 1g, and the L-shaped metal fitting 20 is in contact with the outer side of the joining plate 2f of the main body of the beam 1f and the bonding plate 2g of the main body of the beam 1g. By inserting 13, the cloth foundation is integrally connected to form a T-shaped fabric base.
[0013]
Further, by using four identical L-shaped brackets 20, the beam main body can be coupled in a cross shape. That is, the beam main body 1h is added to the beam main bodies 1e, 1f and 1g assembled in the T shape shown in FIG. 5, and the beam main bodies 1e and 1f and the beam main bodies 1g and 1h are respectively straight as shown in FIG. The main body of the beam is arranged so that it forms a cross shape as a whole, and bolts 13 are used after abutting L-shaped metal fittings 20, 20... As shown in FIG. By joining together, the four beam main bodies 1e to 1h can be connected in a cross shape.
[0014]
As shown in FIG. 7, the character-shaped metal fittings 30 constituting the connecting metal fittings can be used to connect the beam main bodies 1 i and 1 j in a letter-like shape. That is, by placing the beam main body 1j adjacent to the beam main body 1i arranged on a straight line at an angle of 45 °, the beam main body 1j is arranged in a square shape, and the joining plates 2i and 2j protruding from the beam main bodies 1i and 1j The beam-shaped metal fittings 30 and 30 are brought into contact with each other from the outside, and are integrated by using the bolts 13, whereby the beam main bodies 1i and 1j can be connected in a plane shape.
Incidentally, Ku-shaped fitting 30 can be varied to bond angles by selecting the angle freely, basically at the angle 135 °, need not be the angle 135 ° servants Always The angle may be 120 ° or the like. In the figure, reference numeral 40 denotes a mold for filling the mortar M.
[0015]
FIG. 8 shows that the main body 1j and the main body 1j arranged at right angles are arranged in a Y shape by arranging the main body 1j of the beam at an angle of 45 °, and the joining plate 2k and the joining plate that contact the L-shaped bracket 20 at a right angle. From the outside of 2i, and from the outside of the joining plate 2i and the joining plate 2j and the joining plate 2k and the joining plate 2j that are in contact with each other at an angle of 135 °, the brackets 30 and 30 are brought into contact with each other to be integrated with the bolt 13 The beam main body 1i, the beam main body 1j, and the beam main body 1k can be connected in a Y shape.
[0016]
As shown in FIG. 7, the beam main bodies integrally joined by such a connecting metal fitting are made to contact the outer side of the beam main joint and then pour mortar from the top. Thus, the end faces of adjacent beam main bodies can be integrally connected to transmit stress between the beam main bodies.
When filling a grout material such as mortar, for example, as shown in FIG. 9, the outer sides of the beam main bodies 1e and 1d adjacent to each other at right angles are L-shaped molds 41, and the inner right-angle parts are 45 at both ends. The orthogonal part may be reinforced by using a mold 42 bent at an angle of °.
[0017]
When the beam main body is arranged at the root cut bottom in the above manner and adjacent beam main bodies are connected with each other in a predetermined shape, the rebar material cut into the necessary length is screwed into the sleeve fitting provided at the bottom of each beam main body, After enclosing the outside with a formwork, the fabric foundation can be completed by pouring concrete to form a footing.
[0018]
[Action]
In the present invention, a concrete beam main body 1 in which a joining plate 2 is fixed in a state where a tip portion protrudes from an end surface in a notch portion 3 formed on left and right end surfaces of a plate-like body having a predetermined thickness, By using three types of connecting metal fittings consisting of the plate metal fitting 10 for connecting the beam main body, the L-shaped metal fitting 20 and the square metal fitting 30, the unit for the fabric foundation can be simplified. In addition, by using different connection fittings, it is possible to form not only straight lines but also L-shaped, T-shaped, cross-shaped, Y-shaped, square-shaped, and all shapes necessary for fabric foundation construction. .
[0019]
【Example】
Hereinafter, an embodiment of a fabric foundation for units of this invention will be described with reference to the accompanying drawings. The beam main body 1 constituting the fabric foundation unit uses ordinary concrete to form four types of rectangular plate-like bodies having a height of 600 mm, a width (thickness) of 120 mm, and different lengths.
The lengths are 455 mm, 910 mm, 1365 mm and 1820 mm. As shown in FIG. 1, such a plate-like body is formed in a flat plate shape by forming notches 3 and 3 above and below the left and right end faces, respectively, and projecting the tip end face from the end face in the center of each notch 3. The base end portion of the joining plate 2 is embedded and fixed, and sleeve fittings 4, 4, 4,... For attaching reinforcing bars 7 for forming footings are provided on the lower portions of the front and rear walls of the plate-like body. In addition, sleeve metal fittings 6, 6... For mounting bolts 8, 8... For fixing a base (not shown) are embedded in the upper surface of the plate-like body. It is.
Although not shown, the sleeve fittings 4 and 6 are formed by forming a female thread that engages with a reinforcing bar 7 or a male thread provided on a bolt on the inner peripheral surface of a short cylindrical body. Note that where tough position of the wall surface on portions of the front and rear of the beam body 1, the threaded hole 5 for fixing the mold with bolts are provided. The joining plate 2 is provided with through holes for inserting bolts at predetermined positions. The through hole may be a long hole.
[0020]
To construct a fabric foundation using such a beam main body, for example, assuming that the total length is 7735 mm, two beam main bodies with a length of 1820 mm, three beam main bodies with a length of 1365 mm, or length Three 1820 mm, two 910 mm in length, and one 455 mm in length may be used. Further, there are only three types of connecting metal fittings: the plate metal fitting 10, the L-shaped metal fitting 20, and the square metal fitting 30, all of which are made of metal.
[0021]
Therefore, when connecting the beam main body linearly, as shown in FIGS. 2 and 3, the end surfaces of the beam main body 1a and the beam main body 1b are opposed to each other, and the end surfaces of the joint plates 2a and 2b of each beam main body are connected. Abut in a straight line. At that time, if the root cut bottom X formed on the ground GL is not horizontal, the level is adjusted by sandwiching the plate plate P between the lower ends of the opposed surfaces of the beam main bodies 1a and 1b.
Next, the flat plate metal fitting 10 is brought into contact with the side surfaces of the front and rear cutouts 3, the bolts 13 and 13 are penetrated from one plate metal fitting 10 side, and the tip is protruded from the other plate metal fitting 10. After the caulking, the washer 14 is loosely fitted, the nut 15 is engaged with the bolt 13 and tightened, and the beam main bodies 1a and 1b are integrally connected in a straight line.
[0022]
After that, the molds 41 and 42 are arranged at the joint, and the mortar M is poured from above, and the mortar M is inserted into the gap between the beam main bodies 1a and 1b and the notch 3 formed in each of the beam main bodies 1a and 1b. And the beam main bodies 1a and 1b are integrally connected.
Thus, after connecting multiple beam main bodies integrally using connecting metal fittings and mortar, sleeve metal fittings 4, 4. ... to arrange the bars for footing formation.
[0023]
When the bar arrangement work for the beam main body is completed, the formwork is placed on the outside, the concrete is poured into the formwork, cured for a predetermined period, and the footing F is formed on the main body of the beam to complete the cloth foundation. . In this embodiment (FIG. 1), the footing F is integrally formed on the beam main body 1 to form a cloth foundation. However, after the reinforcing bars 7 are attached to the beam main body 1, concrete is applied to the entire root cutting bottom X. It may be poured into a solid foundation.
[0024]
【The invention's effect】
The present invention embeds the joining plate by projecting the tip from the end surface into the notch portions formed on the left and right end surfaces of the plate-like body having a predetermined thickness, and mounting reinforcing bars to the lower portions of the front and rear wall surfaces. It consists of a plurality of beam main bodies that differ only in the length in which a plurality of sleeve fittings are fixed at a predetermined interval, and three types of connecting fittings: plate fittings, L-shaped fittings and square-shaped fittings, only the length By combining different beam main bodies in a straight line or at a predetermined angle, and selecting a connecting bracket according to the combination state, it is possible to construct a fabric foundation by freely configuring a T-shaped or L-shaped accessory. .
[0025]
In particular, the main body of the beam constituting the cloth base unit is not integrally formed with a footing, and since the shape is all rectangular, the handling is extremely easy and the overall weight is reduced. Therefore, conveyance is also convenient.
In addition, since the footing is on-site construction, it can be changed in accordance with the width of the root cutting bottom, so that it has excellent workability and workability.
In addition, since the beam has a single shape, it is extremely simple and easy to manufacture members, and since there are only three types of connecting brackets, it is possible to improve workability and shorten the construction period. Demonstrate.
In addition, the joining plate for connecting the beam main body is provided on the left and right end faces of the plate-like body forming the beam main body so that the front and rear wall surfaces and the end face are in communication with each other. The attachment work of the connection fitting to the connector is very easy. When mortar is poured to the connection part, the joint is completely covered with the mortar, so that extremely stable strength can be achieved.
[Brief description of the drawings]
FIG. 1 is a partially cutaway perspective view showing an example of a main body of a beam according to the present invention.
FIG. 2 is a perspective view showing a state in which the beam main body of the present invention is connected linearly.
FIG. 3 is a plan view of the main part showing a state in which the beam main body is connected linearly.
FIG. 4 is a plan view of a main part showing a state in which the beam main body is connected in an L shape.
FIG. 5 is a plan view of the main part showing a state where the beam main body is connected in a T-shape.
FIG. 6 is a plan view of the main part showing a state in which the beam main body is connected in a cross shape.
FIG. 7 is a plan view of the main part showing a state in which the beam main body is connected in a square shape.
FIG. 8 is a plan view of a main part showing a state in which the beam main body is connected in a Y shape.
FIG. 9 is a plan view showing a state in which beam main bodies connected in an L-shape are connected with mortar.
FIG. 10 is an explanatory diagram showing types of conventional beam main bodies.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1a-1k Beam main body 2,2a-2k Joining plate 3 Notch part 4,6 Sleeve metal fitting 5 Screw hole 7 Reinforcing bar for footing 8 Base fixing bolt 10 Plate metal fitting 20 L-shaped metal fitting 30 Cross-shaped metal fitting 13 Bolt 15 Nut

Claims (5)

It consists of a plurality of beam main bodies that differ only in length, and a connecting bracket for connecting the plurality of beam main bodies to each other.
The beam main body is
A rectangular plate-shaped body made of concrete having a predetermined thickness, with a joining plate in a state where the tip part protrudes from the end face in the notch part formed through the front and rear faces on the upper and lower sides of the left and right end faces, respectively. In addition to fixing, in the lower part of the front and back wall surface of the plate-like body, each of the sleeve metal fittings for reinforcing bars is embedded and fixed at a predetermined interval,
The connecting bracket is
A fabric foundation unit comprising only a plate bracket, an L-shaped bracket, and a square bracket . The sleeve fitting is
Providing the female screw of the male screw engaging formed reinforcing steel on the inner peripheral surface
Fabric foundation unit as claimed in claim 1, wherein the. The beam main body is
2. The cloth foundation unit according to claim 1 , wherein a screw hole for attaching the formwork is formed in a required portion of the front and rear wall surfaces. The beam main body is
Fabric foundation unit as claimed in claim 1, the sleeve component for engaging the bolts for the foundation fixed to the top surface portion, characterized in that fixed embedded in Jo Tokoro intervals. A rectangular plate-shaped body made of concrete having a predetermined thickness, with a joining plate in a state where the tip part protrudes from the end face in the notch part formed through the front and rear faces on the upper and lower sides of the left and right end faces, respectively. A plurality of beam main bodies having different lengths, each of which is fixed and embedded in and fixed to a lower part of the front and back wall surfaces of the plate-like body at predetermined intervals, respectively.
Using a metal fitting consisting of only a plate metal fitting, an L-shaped metal fitting, and a square-shaped metal fitting for connecting these beam main bodies to each other,
Arranging products et along the beam mainly in Excavation bottom, next contact beams principal joining plate linear beams principal while selecting a predetermined connecting fitting, L-shaped, T-shaped, cross-shaped, Y Connected to each other in a letter shape and a square shape,
After filling the mortar using a formwork for each connecting part to maintain continuity and engaging one end of the reinforcing bar for footing formation with the sleeve metal fitting at the bottom of each beam,
A cloth foundation method characterized by constructing a cloth foundation by placing concrete and attaching a footing integrally to the beam body.

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