JP3738730B2 - Building foundation - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a building foundation disposed along an upper surface of a foundation.
[0002]
[Prior art]
In general, as a foundation for a building fixed along the upper surface of a foundation made of concrete, a foundation made of wood having a square cross section is widely used even in a conventional construction method or a prefabricated construction method. Such a base made of wood is fixed by an anchor bolt standing up above the foundation. In addition, pillars, studs, and the like are erected through the foundation.
[0003]
However, the conventional wood base has the following problems.
(1) It is easily damaged by white ants and corroded by moisture.
(2) By repeatedly absorbing and releasing moisture, the cross-sectional dimensions of the foundation change over time, so that the building is distorted.
(3) Since the weight is large, it is not suitable for on-site workability and tends to be expensive.
(4) Since both the portion supporting the concentrated load, such as directly under the pillar, and the portion that is not so have the same cross section, the weight increases and the material of the foundation is wasted.
(5) Since the processing accuracy is low and the dimensions are likely to be distorted, it is difficult to make a modular unit and the workability of the building is lowered.
(6) It is easy to lead to environmental destruction by logging.
[0004]
[Problems to be Solved by the Invention]
The present invention solves the problems in the prior art described above, does not cause corrosion or dimensional changes due to white ants, or is lightweight, can improve processing accuracy and workability, and has a required strength as a structural material. At the same time, it is an object to provide a building foundation that is preferable from an environmental point of view.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention applies an extruded aluminum alloy material to a building base and arranges a vertical partition wall at a portion where anchor bolts penetrate and at least a load in the vertical direction is concentrated. It was designed with the idea in mind.
That is, the building base of the present invention (Claim 1) is a building formed by an extruded profile made of one or a plurality of aluminum alloys which is arranged along the upper surface of the foundation and fixed on the foundation by bolts. At least in the portion fixed by bolts on the foundation, the outer diameter has a substantially rectangular cross section and has a hollow portion substantially similar to the cross sectional shape along the longitudinal direction, and such a hollow portion. A pair of vertical partition walls is formed at a position sandwiching the bolt near the center in the width direction in the cross section. The foundation includes both a first building foundation described below and a second building foundation described later.
Further, the first building foundation according to the present invention (Claim 2) is for a building formed by an extruded shape member made of an aluminum alloy that is arranged along the upper surface of the foundation and fixed on the foundation by bolts. A base that has a hollow portion that is substantially rectangular in cross section and has a shape substantially similar to the cross-sectional shape along the longitudinal direction, and sandwiches the bolt near the center in the width direction in the cross section of the hollow portion. Further, a pair of vertical partition walls is formed. In addition to the anchor bolt, the bolt includes a bolt that is screwed to a connection fitting that fixes the column.
[0006]
According to these, since the foundation for the building is formed by the extruded shape of the aluminum alloy, there is no corrosion or dimensional change due to the damage of white ants or moisture, and the foundation has a stable cross section, shape and strength over a long period of time. Further, the weight can be reduced, the processing accuracy is high, the workability of the building can be improved, and the environment is preferable.
In addition, by forming a rectangular section and a hollow section of the rectangular section along the longitudinal direction, and forming a pair of vertical partition walls at a position sandwiching the bolt near the center in the width direction of the hollow section, 3 Two hollow portions are formed. For this reason, for example, a pair of partition walls are disposed in the vicinity of a portion through which an anchor bolt or the like standing from the foundation penetrates, and the buckling deformation of the base due to the tightening force of the bolt or the like can be easily and reliably performed. Can be prevented. Therefore, a required strength can be reliably imparted as a structural material.
In addition, the said longitudinal direction is the same as the extrusion direction of the extrusion shape material which forms the said base. The width direction refers to a horizontal (width) direction in a cross section that is in the indoor and outdoor directions of the base and orthogonal to the extrusion direction of the extruded shape member.
[0007]
On the other hand, a second building base of the present invention (Claim 3) is a base body formed by an extruded profile made of an aluminum alloy and disposed along the upper surface of the foundation, and a predetermined length in the longitudinal direction of the base body. And a reinforcing material made of the same extruded shape member that is fixed to the foundation together with the foundation body by a bolt, and the foundation body has an opening at the foundation. The reinforcing member has a substantially rectangular U-shaped cross section, and the reinforcing member has a hollow portion having a substantially rectangular cross section and a shape similar to the cross sectional shape along the longitudinal direction, and in the width direction of the hollow portion. A pair of vertical partition walls is formed at a position sandwiching the bolt near the center.
[0008]
Also by this, there is no fear of white ants eating damage, corrosion due to moisture, dimensional change, and building distortion, the foundation itself can be reduced in weight, processing accuracy is high, and building workability is enhanced. In addition, a reinforcing material is disposed only in a portion where the anchor bolt penetrates or a column is erected and the load in the vertical direction is concentrated, and the bolt near the center in the width direction of the hollow portion of the reinforcing material is sandwiched. A pair of vertical partition walls is disposed at the position. As a result, three hollow portions are built in. Therefore, even if it receives a concentrated load due to tightening of anchor bolts or the like, it can be sufficiently supported, so that it is possible to provide a building foundation with further reduced weight.
[0009]
Further, according to the present invention, the pair of vertical partition walls formed in the hollow portion of the building base or the reinforcing material is provided on both sides of the bolt more than the interval at which the building base or the reinforcing material is equally divided in the width direction. Also included is a building base (claim 4) located close to.
According to this, since a pair of partition walls are disposed on both sides of the bolt bolts that are screwed with a connection metal fitting inserted into a portion through which the anchor bolt penetrates or a lower end of the pillar, Even when concentrated load due to tightening or the like is received, the load can be reliably supported without causing deformation such as buckling.
[0010]
Further, according to the present invention, the distance (inner) between a pair of vertical partitions formed in the hollow portion of the building base or the reinforcing material is 1.1 to 2.5 times the outer diameter of the bolt. In addition, a building foundation (claim 5) in the range of the above is also included.
According to this, even if the foundation receives a concentrated load due to the fastening of the anchor bolt, the load can be reliably supported without causing buckling.
When the distance between the pair of partition walls is less than 1.1 times the outer diameter of the bolt, it is difficult to penetrate the bolt itself. On the other hand, when the distance exceeds 2.5 times, the upper end of the building base or the reinforcing material There is a risk that the horizontal piece in the case will be deformed and the partition will begin to buckle. In order to prevent these, the distance between the pair of partition walls is within the above range. When the lower limit of the distance between the pair of partition walls (inner) is 1.2 to 1.3 times or more the outer diameter of the bolt, the bolt can be more easily penetrated. There is no risk of damage to the building base and the reinforcing material due to the contact.
[0011]
In addition, according to the present invention, when the building base is fixed on the foundation by the bolt and a nut screwed to the bolt, a washer is sandwiched between the nut and the top surface of the base, and the washer. Also included is a building foundation (Claim 6) in which the width dimension is larger than the distance between the pair of partition walls.
According to this, since the tightening force of the bolt via the washer is reliably received by the pair of partition walls, deformation of the foundation can be prevented more reliably.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
In the following, preferred embodiments of the present invention will be described with reference to the drawings.
In the following embodiment, the building foundation 1 and the like are arranged on the cloth foundation K, but the building foundation of the present invention is also applicable to a solid foundation or an independent foundation.
FIG. 1 is a perspective view schematically showing an outline of a completed construction state of a building base 1 according to the present invention. As shown in FIG. 1, the base 1 is a spacer along the upper surface of a fabric foundation K of a building. They are arranged via S, s, etc.
As shown in FIG. 1, the building base 1 is fixed to the fabric foundation K by anchor bolts 20, and the bolts 20 penetrate the base 1 in the vicinity of the pillars H standing on the base 1. . Further, the pillar H is erected vertically through a connection fitting 40 described later. In addition, between the pillars H and H on the building base 1, an intermediary pillar mH is erected with a metal fitting via a spacer S between the cloth foundation K and between the building bases 1 and 1 parallel to each other. The joist 23 is stretched horizontally. The joist 23 is a hollow extruded shape member made of an aluminum alloy and having a square cross section, and is fixed to the base 1 by fixing a joist support 24 described later in the hollow portion at the end thereof, and the upper surface thereof is the base. 1 is disposed at the same level as the upper surface of the first surface.
[0013]
FIG. 2A is a storage diagram of the building base 1 in the vicinity of a position through which the anchor bolt 20 passes through the line AA in FIG. The base 1 is arranged along the upper surface of the fabric foundation K via a spacer S, and is made of an extruded shape of an aluminum alloy (JIS: A6063S-T5 or the like). As shown in FIG. 2 (A), the building base 1 has a substantially rectangular cross-section (outside rectangular) consisting of horizontal pieces 2 and 5 on the upper and lower ends, a vertical piece 3 on the outdoor side, and a vertical piece 4 on the indoor side. ) And has a hollow portion 6 substantially similar to the cross-sectional shape of the outer shape along the entire length in the longitudinal direction (the depth direction in the drawing and the extrusion direction in the drawing).
[0014]
The hollow section 6 having a rectangular cross section is formed with a pair of partition walls 7 a and 7 b perpendicular to the vicinity of the center in the width direction at uneven positions in the width direction of the hollow section 6. Therefore, as shown in FIG. 2 (A), the hollow portion 6 is divided into three hollow portions 6a and 6b and a narrow hollow portion 6c. Incidentally, in this embodiment, the outer diameter d of the anchor bolt 20 is 16 mm, the distance (inner) w between the partition walls 7 a and 7 b is 26 mm, the height of the outer shape of the base 1 is 40 mm, the width is 120 mm, and the thickness of each part Is about 2 mm.
As shown in FIG. 2 (A), the building base 1 has a shallow groove 2a in the vicinity of the center of the horizontal piece 2 at the upper end, and has a cross-sectional L shape facing the upper and lower ends of the outdoor vertical piece 3. The long and short ridges 8 and 10 and the inner locking grooves 9 and 11 are integrally provided. On the other hand, horizontal protrusions 12 and 13 and a shallow concave portion 14 therebetween are integrally provided on the upper and lower ends of the vertical piece 4 on the indoor side.
[0015]
Further, as shown in FIGS. 1 and 2 (A), a plurality of spacers S having a square shape in plan view and a thickness of 20 mm are provided on the fabric foundation K at positions where the anchor bolts 20 penetrate the building base 1. Placed. The spacer S is made of hard synthetic rubber or synthetic resin having compression resistance and weather resistance, and the central portion thereof is continuous from an anchor portion (not shown) in the fabric foundation K and near the center of the upper surface of the fabric foundation K. Anchor bolts (bolts) 20 erected from pass through.
As shown in FIG. 2 (A), the anchor bolt 20 passes through the hollow portion 6c located at the center of the base 1 and the horizontal pieces 2 and 5 above and below the hollow portion 6c, and a nut 22 via a washer (washer) 21. Screwed together. In this embodiment, the washer 21 has a square shape with a side of 45 mm and a plate thickness of 3.2 mm. As a result, the building base 1 is fixed above the fabric foundation K via the plurality of spacers S.
Note that the distance (inner) w between the partition walls 7 a and 7 b is set in a range of 1.1 to 2.5 times the outer diameter d of the anchor bolt 20. The width of the washer 21 is set to be larger than the distance w between the partition walls 7a and 7b.
[0016]
Further, as shown in FIG. 2A, a vertical piece 32 of a long draining material 30 is inserted into the locking grooves 9 and 11 in the vertical piece 3 on the outdoor side of the building base 1. The draining material 30 is also formed of the same aluminum alloy extruded shape, and integrally includes a vertical piece 32, a horizontal piece 33, an auxiliary protruding piece 34, an inclined piece 35, and a cover piece 36. The auxiliary protrusion 34 serves as a positioning and auxiliary support when attaching a plywood or the like used for a wall base material, for example, and also prevents rainwater from blowing up on the inclined piece 35 from the outside.
Further, as shown in FIG. 2 (A), a vertical portion 25 and a protruding corner portion of the joist support 24 are formed in the concave portion 14 between the projecting pieces 12 and 13 located on the vertical piece 4 on the indoor side of the building base 1. A stepped portion 27 is inserted. The joist support 24 is also formed of the same extruded shape as described above, and is cut short in the longitudinal direction, and has a substantially L-shaped cross section including a vertical portion 25 and a horizontal portion 26, and a step portion 27 is formed at the corner portion. It is provided integrally. In the joist support 24, the vertical portion 25 is fixed to the vertical piece 4 with screws or bolts (not shown), and a plurality of joists 23 made of wood and having a square cross section (square member) are placed on the horizontal portion 26. Is done.
[0017]
FIG. 2B is a storage diagram of a building base 1 a which is a modification of the base 1.
The building base 1a is also made of the same aluminum alloy extruded shape as above, the upper and lower horizontal pieces 2 and 5, the outdoor and indoor side vertical pieces 3 and 4, the hollow portion 6 (6a, 6b and 6c), and The outdoor side protrusions 8 and 10 and the locking grooves 9 and 11 are provided.
As shown in FIG. 2 (B), a protrusion 15 having an L-shaped cross section and an inner locking groove 16 are formed at the upper end of the indoor vertical piece 4, and a horizontal protrusion at the lower end of the vertical piece 4. 17 is provided, and a recess 18 is formed between the protrusion 15 and the protrusion 17.
The building base 1a is also arranged above the fabric foundation K via the spacer S in the same manner as the base 1, and is fixed by anchor bolts 20 penetrating the hollow portion 6c and the like as shown in FIG. . Further, the vertical piece 32 of the draining material 30 is inserted into the locking grooves 9 and 11 of the vertical piece 3 on the outdoor side in the same manner as described above.
[0018]
On the other hand, a joist support 24a is arranged on the indoor vertical piece 4 of the building base 1a. As shown in FIG. 2 (B), the joist support 24a also has a substantially L-shaped cross section composed of a vertical portion 25 and a horizontal portion 26, and a locking protrusion 28 and a locking groove 29 are provided at the corner. In addition, the length of the latching protrusion 28 is set shorter than the protrusion 15 of the base 1a.
The joist support 24a is fixed to the building base 1a as follows. First, the distal end portion of the locking protrusion 28 of the joist support 24a is inserted into the locking groove 16 at the upper end of the vertical piece 4 with an inclination. Next, in this state, the joist support 24a is pushed in while rotating clockwise in FIG. 2 (B), thereby inserting the locking groove 29 into the protrusion 15 of the base 1a and perpendicular to the recess 18 of the base 1a. The part 25 is fitted. As a result, the joist support 24a is positioned at a predetermined position. The vertical portion 25 is screwed to the vertical piece 4 to fix the joist support 24a, and the square joist 23 is placed on the horizontal portion 26.
[0019]
According to the building bases 1 and 1a as described above, the cross-sectional shape is stable over a long period of time because there is no corrosion or dimensional change due to the damage caused by white ants or moisture due to the extruded shape of the aluminum alloy. The outer section surrounded by the horizontal pieces 2 and 5 at the upper and lower ends and the vertical pieces 3 and 4 on the outdoor / indoor side has a substantially rectangular cross section. Partitions 7a and 7b perpendicular to the position where 20 is sandwiched are formed. For this reason, when the base 1 is fixed on the cloth foundation K, the base 20 can be firmly fixed using the bolt 20 and the nut 22, and a situation in which the base 1 is buckled and deformed by a strong tightening force can be prevented. Furthermore, by arranging the pair of partition walls 7a and 7b in the vicinity of the bolt 20 without dividing the hollow portion 6 evenly, the effect of preventing the deformation can be reliably obtained.
[0020]
In addition, the distance w between the pair of partition walls 7a and 7b is set to a range of 1.1 to 2.5 times the outer diameter d of the anchor bolt 20 that penetrates the hollow portion 6c and the like, and the width of the washer 21 is the above distance. It is larger than w. For this reason, even when a concentrated load in the vertical direction is received by the anchor bolt 20 and the nut 22, the vicinity of the center of the upper horizontal piece 2 is deformed downward, and the partition walls 7a and 7b and the vertical pieces 3 and 4 are buckled. The situation can be reliably prevented. In addition, as will be described later, the same support strength can be exhibited even when a concentrated load in the vertical direction accompanying the column H being suspended from the horizontal piece 2 is received.
Therefore, the building foundations 1 and 1a are small in weight and have a required strength as a structural material for buildings.
[0021]
Here, the construction method to the fabric foundation K will be described using the building base 1 as an example.
As shown in FIGS. 3A and 3B, the connection fitting 40 with the pillar H is fixed in a non-rotatable manner at the position of the building base 1 adjacent to or adjacent to the spacer S in advance.
As shown in FIGS. 3 (A) and 3 (a), the connection fitting 40 includes a rectangular connection plate 42 made of a steel plate, an inverted U-shaped vertical groove 44 in which the center of the bottom side 43 is elongated in an upward direction, A nut 46 that is welded while being sandwiched between the longitudinal grooves 44 and left and right pin through holes 49, 49 are included. A lower portion 45 of the vertical groove 44 is positioned below the nut 46, and a rounded portion 44 a of the vertical groove 44 is positioned above the nut 46.
Further, as shown in FIG. 3 (A), below the building base 1, a bolt 48 is erected vertically from the center of the upper surface, a base plate 47 having a substantially square plan view and a plate thickness of 5 mm, The bolt 48 passes through the through hole sa in the center and a spacer s having a thickness of 15 mm is disposed. That is, the spacer s is thinner than the spacer S by the thickness of the base plate 47.
[0022]
Further, as shown in FIG. 3A, a through hole 2b is drilled in the vicinity of the concave groove 2a in the center in the width direction of the horizontal pieces 2 and 5 of the building base 1 (the illustration of the through holes of the horizontal piece 5 is omitted). ). As shown in FIG. 3A, the bolt 48 of the base plate 47 is passed through the through hole sa of the spacer s and the through hole 2b of the building base 1 and the male screw portion 48a at the upper end of the bolt 48 is connected to the fitting. Screw into 40 nut 46. At the same time, as shown in FIG. 3B, the lower sides 43 and 43 of the connection plate 42 of the connection fitting 40 are inserted into the concave grooves 2 a in the horizontal piece 2 at the upper end of the building base 1.
[0023]
In this state, as shown by an arrow in FIG. 3A, the base plate 47 is rotated, the bolt 48 is further screwed into the nut 46, and the spacer s and the building are interposed between the base plate 47 and the connection plate 42. The base 1 is sandwiched. When the spacer s comes into contact with the bottom surface of the horizontal piece 5 of the building base 1, the rotation of the base plate 47, that is, the screwing of the bolt 48 into the nut 46 is stopped. As a result, as shown in FIG. 3 (B), the connection plate 42 of the connection fitting 40 has its lower sides 43 and 43 fitted in the concave groove 2a of the building base 1 and cannot rotate, Fixed to the building base 1. Even during the fixing, the building base 1 is not deformed such as buckling by the partition walls 7a and 7b. Moreover, the above operation is performed similarly about the said foundation 1a for buildings.
[0024]
Next, the building base 1 in which the connection fitting 40, the spacer s, and the base plate 47 are fixed at predetermined positions is disposed above the fabric foundation K. As shown in FIG. 4 (A), the anchor bolt 20 for fixing the building foundation 1 on the fabric foundation K has its anchor portion embedded in the fabric foundation K and vertically penetrates the center portion of the spacer S. is doing.
Further, another through hole 2b is drilled in the vicinity of the concave groove 2a in the center of the horizontal piece 2 or 5 of the building base 1 in the width direction (the illustration of the through hole of the horizontal piece 5 is omitted). ). Further, a nut 22 and a washer 21 are prepared.
Next, as shown in FIG. 4 (B), the anchor bolt 20 is passed through the through hole 2b and the building base 1 is placed on the spacer S. Further, a washer 21 is passed through the male screw portion 20a at the upper end of the anchor bolt 20 and a nut 22 is screwed. The width of the washer 21 is greater than the distance w between the partition walls 7a and 7b.
[0025]
As a result, as shown in FIG. 4B, the building base 1 is firmly fixed along the upper surface of the fabric foundation N via the spacer S. In addition, even by tightening with the anchor bolt 20 and the nut 22, it is possible to prevent a situation in which the vicinity of the center of the horizontal piece 2 is deformed or the pair of partition walls 7a and 7b are buckled.
In the present embodiment, the spacers S and s are arranged at positions where the anchor bolts 20 pass through or at positions where the connection fittings 40 for the pillars H are provided, and the gap between the cloth foundation K and the base 1 where these are not arranged is The outside air introduction space under the floor is formed.
The distance w between the outer diameter d of the anchor bolt 20 and the partition walls 7a and 7b is in the above range. Moreover, the above operation is performed similarly about the said foundation 1a for buildings.
[0026]
Further, a pillar H is erected above the building base 1 fixed above the fabric foundation K.
As shown in FIG. 5A, the connection plate 42 of the connection fitting 40 fixed on the building base 1 is inserted into the slit hs provided at the lower end of the wood column H. 5A is a cross-sectional view taken along line BB in FIG.
The slit hs is formed perpendicularly from the center in the inner and outer directions at the lower end of the column H, and is equivalent to the thickness of the connection plate 42, and a recess (not shown) that allows the nut 46 of the connection fitting 40 to enter in the vicinity of the center. ) Is formed. In addition, a pair of through holes ha penetrating horizontally in the inner and outer directions are perforated through the slit hs in the front and rear direction in FIG. The pin through-hole 49 is communicated. As shown in FIG. 5A, the interval w between the partition walls 7a and 7b of the base 1 is also 1 of the outer diameter d of the bolt 48 and the anchor bolt 20 that are screw-coupled to the connection fitting 40, as in the above-described embodiment. .1 to 2.5 times the range.
[0027]
Next, as shown in FIG. 5 (A), a steel pin P is driven from the outdoor side of the through hole ha in the column H to penetrate the pin through hole 49 of the connecting plate 42 and into the indoor through hole ha. Let it enter. Thereby, the pillar H is erected in a predetermined position on the building base 1 so as not to be pulled out by the connection fitting 40, the pair of pins P, the bolt 48, and the base plate 47.
Furthermore, as shown in FIG. 5 (A), a draining material 30 is set on the outdoor side of the building base 1 and screwed (not shown) from the vertical piece 32 to the vertical piece 3. After the joist support 24 is set on the indoor side and screwed to the vertical piece 4 from the vertical portion 25, a plurality of square joists 23 are placed on the joist support 24. On the joist 23, a floor material (not shown) is placed and fixed. Note that beams and wall materials (not shown) are connected to or supported by the column H by various methods.
[0028]
Further, as shown in FIG. 5B, the pillar H is connected to the predetermined position on the building base 1a to which the connection fitting 40 is fixed through the connection fitting 40 and the pair of pins P by the same operation as described above. In addition, it is possible to set the draining material 30 and the joist support 24a and to place the square joist 23 as well as making it impossible to pull out and standing vertically.
As shown in FIGS. 5A and 5B, in the building bases 1 and 1a, the loads of the upper structural material such as the beam and the building such as the wall are concentrated near the position where the pillar H is erected. Join. However, since the building bases 1 and 1a are provided with the partition walls 7a and 7b near the center of the hollow portion 6 in the width direction and sandwiching the bolts 48, the upper horizontal piece 2 is bent downward. In other words, it is possible to reliably prevent the partition walls 7a and 7b and the vertical pieces 3 and 4 from buckling.
[0029]
FIG. 6A is a storage diagram of the building foundation 50 having a different form. The base 50 is a long base body 51 disposed along the upper surface of the fabric foundation K, and a position where the anchor bolt 20 or the like which is fitted to the base body 51 and is erected from the fabric foundation K penetrates. And a plurality of short reinforcing members 60 that are disposed only.
In FIG. 6A, the overall height of the base 50 is 40 mm and the width is 120 mm. However, the dimensions may be 120 mm square, which is the same height as a conventional wood base, or only the height may be 80 mm.
As shown in FIG. 6 (B), the base body 51 is made of the same aluminum alloy extruded shape as described above, has a substantially U-shaped cross section that opens downward (on the fabric base K side), and has a horizontal piece 52 at the upper end. Outdoor and indoor side vertical pieces 53 and 54 and an opening 55 surrounded by them are provided. In the center of the horizontal piece 52, a concave groove 52a similar to the above is formed.
Further, as shown in FIG. 6B, in the vicinity of the upper end and the lower end of the outdoor-side vertical piece 53 in the base body 51, long and short ridges 56, 58 having an L-shaped cross section facing each other and the inner relation between them. A stop groove 57 is provided. Further, the indoor-side vertical piece 54 has a protrusion 56 having an L-shaped cross section at the upper end and a locking groove 57 inside thereof, and a horizontal protrusion 59 at the lower end, respectively, in the longitudinal direction (depth shown in the figure). Are integrally provided along the entire length in the direction of extrusion).
[0030]
On the other hand, the reinforcing member 60 is also made of the same extruded shape as described above, and as shown in FIG. 6 (B), has an outer shape composed of upper and lower horizontal pieces 62, 65 and outdoor / indoor side vertical pieces 63, 64. The cross section is substantially rectangular (rectangular), and has a hollow portion 66 that is substantially similar to the cross-sectional shape of the outer shape along the longitudinal direction. The hollow portion 66 having a substantially rectangular cross section has a pair of partition walls 67a and 67b formed at non-uniform positions in the width direction of the hollow portion 66 at positions sandwiching the anchor bolt 20 near the center in the width direction. Therefore, as shown in FIG. 6B, the hollow portion 66 is divided into three hollow portions 66a and 66b having a large width and a hollow portion 66c having a small width.
As shown in FIG. 6B, a wide groove 62a for receiving the bottom of the groove 52a of the base body 51 is formed at the center of the horizontal piece 62 at the upper end. Furthermore, at the lower end of the vertical piece 63 on the outdoor side, a projecting piece 68 erected from the tip of the horizontal piece 65 at the lower end and an engaging groove 61 inside thereof are located, and at the lower end of the vertical piece 64 on the indoor side The protrusion 69 having an L-shaped cross section and a wide locking groove 61 inside thereof are located.
[0031]
As shown in FIG. 6A, the reinforcing member 60 is fitted at a predetermined position in the opening 55 of the base body 51, and the lower end of the vertical piece 53 of the base body 51 is connected to the reinforcing member 60 on the outdoor side. The protrusion 59 that is locked in the stop groove 61 and is located at the lower end of the vertical piece 54 of the base body 51 on the indoor side is locked in the lock groove 61 of the reinforcing member 60. As a result, the building base 50 in which a desired number of reinforcing members 60 are fitted at predetermined positions in the long base body 51 is formed. A through hole is drilled in the vicinity of the center in the width direction of the base 50 and through the bottom of the concave groove 52a and the upper and lower horizontal pieces 62, 65 of the hollow portion 66c.
The reinforcing member 60 is fixed to the building base 50 such as a pillar H or the like where a building load is applied, a portion where the base 50 is fixed on the cloth foundation K, or a structural material such as a large fork or a struck base. It arrange | positions in the base main body 51 in a part.
[0032]
As shown in FIG. 6 (A), the anchor bolt 20 erected perpendicularly from the cloth foundation K to the upper surface thereof penetrates the spacer S, and each of the above-mentioned base body 51 and the reinforcing material 60 in the building base 50. The nut 22 is screwed to the male screw portion of the anchor bolt 20 protruding through the through hole and projecting above the base 50 via the washer 21.
As a result, the building base 50 is fixed above the fabric foundation K via the plurality of spacers S arranged in the portion where the reinforcing member 60 is located. As shown in FIG. 6A, the distance w between the pair of partition walls 67a and 67b is in the range of 1.1 to 2.5 times the outer diameter d of the anchor bolt 20 that penetrates the hollow portion 66c and the like. Is set. In addition, before the above operation, the connection plate 42 of the connection fitting 40 is erected in advance using a bolt 48 or the like at a predetermined position on the building base 50.
[0033]
Furthermore, as shown in FIG. 6 (A), a draining material 30 is set on the outdoor side of the building base 50 in the same manner as the base 1, and a joist support 24a is set on the indoor side, and a square joist on it. 23 is placed. Then, the pillar H is erected by inserting the connecting plate 42 on the base 50 into the slit hs of the pillar H and driving a pin P.
The building foundation 50 as described above also eliminates the risk of white ant damage, moisture corrosion, dimensional changes, and building distortion. The foundation 50 itself can also be reduced in weight, has high processing accuracy, Workability can be improved.
In addition, since the reinforcing member 60 is disposed only in a portion that requires strength, such as a portion through which the anchor bolt 20 or the bolt 48 penetrates, the base body 51 and the horizontal pieces 52 and 62 of the reinforcing member 60 are formed by the partition walls 67a and 67b. It is also possible to prevent downward deformation and buckling deformation of the vertical pieces 53, 63, 54, 64 and the partition walls 67a, 67b. Accordingly, the building base 50 is lighter and easier to construct and has high strength.
[0034]
FIG. 7A is a storage diagram of a building base 50 a in a modified form of the base 50.
As shown in FIG. 7A, the building base 50a is also fitted with the long base body 51a disposed along the upper surface of the cloth foundation K, and is erected from the cloth foundation K. The anchor bolts 20 and the bolts 48 positioned directly below the pillars H are combined with a plurality of short reinforcing members 60a arranged only at positions where the bolts 48 pass through.
The base body 51 is also made of the same extruded shape as described above. As shown in FIG. 7A, the horizontal piece 52 at the upper end, the vertical pieces 53 and 54 on the outdoor side and the indoor side, and the opening 55 surrounded by these pieces. It has a substantially U-shaped cross section. A concave groove 52a is formed at the center of the horizontal piece 52 at the upper end, and the same protrusions 56 and 58 as those described above and an inner locking groove 57 are provided in the vertical piece 53 on the outdoor side. Horizontal protrusions 59a and 59b are integrally provided along the entire length at the upper end and near the lower end of the piece 54, respectively.
[0035]
Further, the reinforcing member 60a is also made of the same extruded shape, and as shown in FIG. 7A, the upper and lower horizontal pieces 62 and 65, the outdoor and indoor side vertical pieces 63 and 64, and It has a hollow portion 66 surrounded by these, and is divided into three hollow portions 66a to 66c by the same partition walls 67a and 67b. Further, a wide concave groove 62a is formed at the center of the horizontal piece 62, and a protruding piece 68 and a locking groove 61 similar to those described above are formed at the lower end of the vertical piece 63 on the outdoor side. Furthermore, a protrusion 69 and a locking groove 61 having an L-shaped cross section are formed at the lower end of the indoor vertical piece 64.
Similarly to the above, the reinforcing member 60a is fitted at a predetermined position in the opening 55 of the base body 51a, and the lower end of the vertical piece 53 of the base body 51 is placed in the locking groove 61 of the reinforcing member 60a on the outdoor side. The lower end of the vertical piece 54 of the base body 51a is locked in the locking groove 61 of the reinforcing member 60a and the protruding piece 59b is placed on the protrusion 69 on the indoor side. As a result, as shown in FIG. 7A, the building base 50a in which a desired number of reinforcing members 60a are fitted only at predetermined positions on the long base body 51a is assembled.
[0036]
Through holes are respectively drilled in the vicinity of the center in the width direction of the base body 51a and in the bottoms of the concave grooves 52a and the horizontal pieces 62, 65 above and below the hollow portion 66c of the reinforcing member 60a. A perforation is also made at each predetermined position.
First, as shown in FIG. 7A, after the bolts 48 of the base plate 47 are passed through the through holes in the building base 50a through the thin spacers s, the bottom side 43 of the connection plate 42 is recessed. The bolt 48 is screwed to the nut 46 of the connection fitting 40 so as to fit into the 52a. As a result, the connection plate 42 of the connection fitting 40 is fixed on the base 50a in a non-rotatable manner.
[0037]
Next, as shown in FIG. 6A, the anchor bolts 20 erected from the fabric foundation K via the spacers S are inserted into the through holes at positions adjacent to the connection fittings 40 in the building base 50a. The nut 22 is screwed through the washer 21 through the washer 21. As a result, as shown in FIG. 7B, the base 50a is placed along the upper surface of the fabric foundation K in a state where the anchor bolt 20 is fixed and the connection fitting 40 is disposed via the same reinforcing member 60a. Can be fixed. FIG. 7B also shows a state immediately before the pillar H is erected on the base 50.
7A, the connecting plate 42 is inserted into the slit hs at the lower end of the column H, the pin P is driven into the horizontal through hole ha of the column H, and the pin through hole 49 of the connecting plate 42 is used. The pillar H can be erected on the base 50a by penetrating.
The same effects as those of the foundation 50 can be obtained by the building foundation 50a.
[0038]
The building foundation of the present invention is not limited to the above-described embodiments, and can be appropriately changed without departing from the scope of the invention.
[0039]
【The invention's effect】
According to the building foundation of the present invention described above (claims 1 and 2), there is no corrosion or dimensional change caused by white ants or damage due to moisture, and the foundation has a stable cross section, shape and strength over a long period of time. Moreover, since it is formed of an extruded shape of an aluminum alloy, the weight can be reduced, the processing accuracy is high, the workability of the building can be improved, and the environment is preferable. In addition, the portion fixed on the foundation with bolts has a rectangular cross section and a hollow portion with a rectangular cross section, and a pair of vertical partition walls are located at the position between the bolts near the center in the width direction of the hollow portion. Is formed. For this reason, for example, in the vicinity of a portion through which an anchor bolt or the like standing from the fabric foundation passes, deformation such as buckling associated with fastening of the bolt can be easily and reliably prevented. Therefore, it can be set as the building foundation which has a required intensity | strength reliably as a structural material.
[0040]
Further, according to the second building foundation (claim 3), in addition to the effect of the first building foundation, the portion through which the anchor bolt penetrates or the column is erected and the load in the vertical direction is concentrated A reinforcing material is disposed only in the space, and a pair of vertical partition walls are formed at uneven positions in the width direction near the center in the width direction of the hollow portion of the reinforcing material. Therefore, even if it receives a concentrated load such as tightening of an anchor bolt, it can be sufficiently supported, so that the base is further reduced in weight.
Further, according to the building foundations of claims 4 and 5, since the partition wall can be further arranged near the bolt, even if it receives a concentrated load due to tightening of the bolt, a part of the foundation is deformed such as buckling. The load can be more reliably supported without occurring.
In addition, according to the building foundation of claim 6, since a washer having a width larger than the distance between the pair of partition walls is used, even if a concentrated load due to tightening of the anchor bolt or the like is applied, The load can be more reliably supported without the upper surface being recessed or part of which is deformed such as buckling.
[Brief description of the drawings]
FIG. 1 is a perspective view schematically showing an outline of a state in which a building foundation of the present invention is constructed on a cloth foundation.
2A is a cross-sectional view showing the storage of a building base in the direction of the arrows along the line AA in FIG. 1, and FIG. 2B is the storage of the building base in a modified form of the base in FIG. FIG.
FIGS. 3A and 3B are schematic views showing a state in which a column connection fitting is attached to the base of FIGS.
4A and 4B are schematic views showing a state in which the foundations shown in FIGS. 1 and 2 are fixed on a fabric foundation.
5A is a cross-sectional view showing the storage of the building base in the direction of the arrows along the line BB in FIG. 1, and FIG. 5B is a column standing on the building base in FIG. Sectional drawing which shows the set-up.
6A is a cross-sectional view showing accommodation of building foundations in different forms, and FIG. 6B is a cross-sectional view showing a base body and a reinforcing material forming the base of FIG.
7A is a cross-sectional view showing the storage of a building base in a modified form of the base in FIG. 6A, and FIG. 7B is a cross-sectional view taken in different arrows showing the storage of the base in FIG.
[Explanation of symbols]
1,1a, 50,50a …………………… Base for building
6 (6a-6c), 66 (66a-66c) ... hollow part
7a, 7b, 67a, 67b ……………… Bulk
20 ……………………………………………… Anchor Bolt
21 …………………………………………… Washers
48 ... ………………………………………… Bolt
51,51a …………………………………… Base body
55 …………………………………………… Opening
60, 60a ………………………………… Reinforcing material
K ……………………………………………… Cloth Foundation (Fundamentals)
w ……………………………………………… Distance
d ……………………………………………… Outer Diameter

Claims (6)

A building foundation formed by an extruded profile made of one or more aluminum alloys arranged along the upper surface of the foundation and fixed on the foundation by bolts,
At least in the portion fixed by bolts on the foundation, the outer diameter has a substantially rectangular cross-section and has a hollow portion substantially similar to the cross-sectional shape along the longitudinal direction,
A pair of vertical partition walls is formed at a position sandwiching the bolt near the center in the width direction in the cross section of the hollow portion.
Building foundation characterized by that. A building foundation formed by an extruded profile made of an aluminum alloy arranged along the upper surface of the foundation and fixed on the foundation by bolts,
A cross section of the outer shape is substantially rectangular and has a hollow portion that is substantially similar to the cross sectional shape along the longitudinal direction, and a pair of vertical portions is located at a position sandwiching the bolt near the center in the width direction in the cross section of the hollow portion. A partition wall is formed,
Building foundation characterized by that. A base body that is arranged along the upper surface of the foundation and is formed by an extruded shape made of an aluminum alloy, is fitted at a predetermined position in the longitudinal direction of the base body, and is fixed on the foundation together with the base body by bolts. A building base comprising a reinforcing member made of the same extruded profile as described above,
The base body has a substantially U-shaped cross section with the opening opened to the base side,
The reinforcing member has a hollow portion having a substantially rectangular cross-section and substantially similar to the cross-sectional shape along the longitudinal direction, and a position sandwiching the bolt near the center in the width direction of the hollow portion, A pair of vertical partitions are formed,
Building foundation characterized by that. A pair of vertical partition walls formed in the hollow portion of the building base or the reinforcing material is located closer to both sides of the bolt than an interval at which the building base or the reinforcing material is equally divided in the width direction.
The building foundation according to any one of claims 1 to 3, wherein The distance between a pair of vertical partitions formed in the building base or the hollow portion of the reinforcing material is in a range of 1.1 to 2.5 times the outer diameter of the bolt. The building foundation according to claim 4. When the building base is fixed on the foundation by the bolt and a nut screwed to the bolt, a washer is sandwiched between the nut and the upper surface of the base, and the width of the washer is the pair of partition walls. The building foundation according to any one of claims 1 to 5, wherein the building base is larger than the distance of the building.

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