JP2980564B2 - Construction method of building, foundation structure of building, and anti-vibration member for building foundation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a building, a basic structure of the building, and a vibration damping member for a foundation of the building.

[0002]

2. Description of the Related Art A building generally constructed mainly for houses and stores is, for example, a wooden base is placed on a concrete base structure and embedded in the concrete of the base structure. An anchor vault is used for fixing. In order to ensure earthquake resistance, braces are attached to the roof structure composed of columns, beams, etc. assembled on the foundation structure, or metal reinforcing pieces are attached to the combination of columns and beams. , To prevent the collapse of buildings due to the earthquake.

[0003]

Since the above-described building structure is a so-called building having an earthquake-resistant structure, there is a natural limit in building a building that can withstand any seismic intensity. There has been a demand for an architectural structure that can be minimized with good economic efficiency.

[0004] It is an object of the present invention to provide an economical building structure having vibration damping properties and remarkably large seismic isolation.

[0005]

Means for Solving the Problems The constitution of the present invention to solve the above problems is as follows.

[0006] The method of building a building is as follows: (1) In a method of building a building in which a foundation beam constituting a foundation of a building structure is mounted on a concrete foundation, a rubber is provided between the concrete foundation and the foundation beam. It is characterized by being constructed by interposing a vibration-absorbing member for foundation of a building made of a plate and having elasticity.

[0007] The vibration damping member for a foundation of a building includes: (2) a concrete foundation and a foundation beam which is inserted between the concrete foundation and a foundation beam constituting a foundation of a building structure; A plate-like body having a width equal to or close to the width, formed on at least one of the concrete foundation and the foundation beam on at least one surface of the plate-like body, and in a width direction of the concrete foundation and the foundation beam; A rubber plate provided with a projection that engages with a plurality of concave grooves extending in a direction extending from the rubber plate.

(3) The concrete foundation and a foundation beam which constitutes a foundation of a building structure on the concrete foundation are opposed to each other at a distance substantially equal to the width of the concrete foundation and the foundation beam. A plate-like body having an open end having a U-shaped cross section on one side of the concrete foundation and the foundation beam. The concrete foundation and the foundation beam are provided on both upper and lower surfaces of the plate-like body, respectively. The concrete foundation and a plurality of concave grooves provided in the width direction of the foundation beam, respectively, and the U-shaped open end is provided at the upper end of the concrete foundation or the foundation. It is characterized by being made of a rubber plate fitted to the lower end of the beam and having elasticity.

(4) The concrete foundation and a foundation beam which constitutes a foundation of a building structure on the concrete foundation are opposed to each other at an interval substantially equal to the width of the concrete foundation and the foundation beam. A plate-shaped body having an open end having a shape of a cross section H having openings on both sides of the concrete foundation and the foundation beam by the end,
On the upper and lower surfaces of the plate-like body, the concrete foundation and the foundation beam respectively have projections that engage with a plurality of concave grooves provided in the width direction of the concrete foundation and the foundation beam, respectively, The opening end of the plate-shaped body is made of a rubber plate that is fitted to the concrete foundation and the foundation beam, and has elasticity.

(5) In the above (2), (3) or (4), the groove formed in the concrete foundation and the foundation beam is perpendicular to the longitudinal direction of the concrete foundation and the foundation beam. It is characterized by being provided.

[0011] The foundation structure of the building includes: (6) a concrete foundation, a foundation beam constituting the foundation of the building structure on the concrete foundation, (2) or (3).
Or (4) or (5), characterized in that it comprises a vibration isolating member for a foundation of a building.

[0012]

FIG. 1 is a perspective view of an embodiment of an embodiment of a foundation structure of a building according to the present invention. In these figures, 1 is a concrete foundation, 2 is a wooden foundation beam mounted along the concrete foundation 1, 3 is a wooden column vertically mounted on the foundation beam 2, 4 is a concrete foundation 1 Vibration absorbing members 5 inserted between the base beam 2 and bolts 5 for preventing the foundation beam 2 from lifting up.

The vibration absorbing member 4 used here is, for example,
It is made of a rubber material such as chloroprene synthetic rubber and natural rubber.

In the embodiment of the foundation structure of the building shown in FIG. 1, a vibration absorbing member 4 made of chloroprene synthetic rubber having the same width as the concrete foundation 1 and the foundation beam 2 is provided between the concrete foundation 1 and the foundation beam 2. It has been inserted.

As described above, by using the vibration absorbing member 4 between the concrete foundation 1 and the foundation beam 2, the foundation structure of the building can cope with deformation such as compression, shearing, vibration, and the like, which are received during an earthquake or the like. can do. In addition, it can reduce the impact force during an earthquake or the like, reduce the force, and can also perform the function of seismic isolation.

Since the vibration absorbing member 4 is made of a rubber material such as chloroprene-based synthetic rubber or natural rubber, the vibration absorbing member 4 has excellent durability and requires little maintenance after specification.
Further, since the foundation beam 2 has a structure in which it is in close contact with the vibration absorbing member 4 made of a rubber material, it is also useful for preventing the lower surface of the foundation beam 2 from touching.

Further, the construction cost does not increase due to mass production because the unit price of the vibration absorbing member 4 is low.

FIG. 2 is a perspective view of another embodiment. In the embodiment of FIG. 1, the vibration absorbing member 4 inserted between the concrete foundation 1 and the foundation beam 2 is connected to the concrete foundation 1 and the foundation beam 2. Are inserted into all portions of the opposing surfaces. However, in the embodiment of FIG. 2, the insertion range of the vibration absorbing member 4 'is limited to, for example, a position where a pillar is provided. In this portion, a foamed polystyrene plate-shaped gap member 6 is inserted to prevent water or the like from entering from a gap formed between the concrete foundation 1 and the foundation beam 2.

By adopting such a structure, the seismic isolation force is smaller than that of the embodiment of FIG. 1, but it can be used in a house having a relatively simple structure and a small load. An effect similar to that of the structure of the first embodiment can be obtained.

FIG. 3 is a perspective view of another embodiment of the foundation structure of the building according to the present invention, FIG. 4 is a perspective view of the main part of FIG. 3, and FIG. 5 is a cross-section of the main part of FIG. 3A is a diagram viewed from the X direction in FIG. 3, and FIG. 3B is a sectional view taken along line YY in FIG. In these figures, 1 is a concrete foundation, 2 is a wooden foundation beam arranged along the concrete foundation 1, 3 is a wooden column mounted at right angles to the foundation beam 2, 7 is a concrete foundation 1 Vibration absorbing members 5 inserted between the base beam 2 and bolts 5 for preventing the foundation beam 2 from lifting up.

The vibration absorbing member 7 used here is, for example,
It is made of a rubber material such as chloroprene-based synthetic rubber and natural rubber. As shown in FIGS. 3 to 5, the concrete foundation 1 side and the foundation beam 2 side respectively extend in a direction perpendicular to the longitudinal direction of the foundation beam 2. Arranged projections 7a and 7b are provided. The projection 7a is engaged with the concave groove 1a provided on the concrete foundation 1, and the projection 7b is engaged with the concave groove 2a provided on the foundation beam 2. It has become.

When a building is constructed by the method of constructing a building using the building foundation structure of the present invention, a concave groove 1a can be formed at a predetermined position on the upper surface of the concrete foundation 1 when the concrete foundation 1 is constructed. And concrete
The concrete foundation 1 is constructed.

On the concrete foundation 1 thus formed, the projections 7a and 7
b is mounted so that the projection 7a engages with the concave groove 1a of the concrete foundation 1, and then the foundation beam 2 is placed thereon. The groove 2a is placed so as to be engaged with the projection 7b of the vibration absorbing member 7, and the bolt 5 for preventing floating is used.
The foundation beam 2 is fixed to the concrete foundation 1. In this way, the pillar 3 is erected on the foundation beam 2 attached to the concrete foundation 1 to form the structure of the building.

In the basic structure of the building shown in FIGS.
When the width of the concrete foundation 1 and the foundation beam 2 is 150 mm, the thickness is 30 mm, the thickness of the projections 7a and 7b is 10 mm, respectively, and the lower side (the concrete foundation 1 side) and the upper side (the foundation beam 2 side) are adjacent. The protrusions 7a and 7b are provided at intervals of 500 mm, and the lower and upper protrusions are provided at intervals of 250 mm.

As described above, by using the vibration absorbing member 7 having such a structure between the concrete foundation 1 and the foundation beam 2, the effect corresponding to deformations such as compression, shearing and vibration is remarkably improved. As a result, it is possible to reduce the impact force in the event of an earthquake, increase the function of reducing the force, and also perform the function of seismic isolation. In addition, it has excellent durability and requires little maintenance after specification. It is also useful for protecting the bottom surface of the foundation beam. The construction cost does not increase if the unit price is low and mass production is carried out.

FIG. 6 is an explanatory view of the basic structure of a building having a structure as shown in FIGS. 3 to 5 using wood as the foundation beam 1 and using chloroprene synthetic rubber for the rubber plate. When the concave groove 2a of the foundation beam 2 and the projection 7b of the vibration absorbing member 7b made of a rubber plate are engaged, the shear stress στ and the bearing stress σ in the foundation structure of such a building.
The result of obtaining ь is shown below.

FIG. 6 (a) shows the arrangement of the concrete foundation 1, the foundation beam 2 and the columns 3 assembled in a cross-girder form according to one embodiment. In this arrangement, FIG. 6 (b) In the case where the vibration absorbing member 7 made of a rubber plate (chloroprene rubber) provided with the protrusions 7b having the dimensions as shown in the figure is used, the calculation is performed for, for example, the column at the position 3 '.

Assuming that the pillar 3 is arranged at the intersection of the concrete foundation 1 and the foundation beam 2 assembled on the girder at an interval of 3600 mm, when focusing on one pillar 3 ', the roof, underground,
The load q when considering the crowd is

[0029]

[Equation 1] q = 0.500 tf / m ² The vertical force P per column is

[0030]

## EQU2 ## P = 0.50 × 3.60 × 3.60 = 6.48tf.

The horizontal force during an earthquake (per column) _Pe is K
Assuming that H (horizontal seismic intensity) = 0.20,

[0032]

P _e = 0.20 × 6.48 = 1.30 tf

Under these conditions, the shear stress degree στ and bearing stress degree σь are obtained. The number of sets is 3, the width is 5.0 cm, and the depth is 1.
5.0cm, 1.5 at the time of earthquake extra,

[0034]

## EQU4 ## Shear stress degree στ = 1300 / (3 × 5.0 × 15.0 × 1.50) = 3.9 kgf / cm ²

[0035]

## EQU5 ## Bearing stress σь = 1300 / (3 × 1.0 × 15.0 × 1.50) = 19.3 kgf / cm ² , and the values of these shear stress στ and bearing stress σь are each, it can be seen that the shear stress of στ timber, the value of Bearing stress σь much smaller than ^{50kgf / cm 2, 80kgf / cm} 2.

In this embodiment, an example is shown in which the protrusions are provided on both the upper surface and the lower surface of the vibration absorbing member 6. However, depending on the structure and scale of the building, the protrusions are provided only on the foundation beam side of the upper surface. It is possible to achieve the intended purpose and effect also with a building structure using a structure provided with a protrusion or a building structure using a protrusion provided only on the concrete foundation side.

FIG. 7 is a perspective view showing another embodiment. In this case, the vibration absorbing member 7 'in which the vibration absorbing member having the above-described structure is limited to only the vicinity of the portion where the column 3 is provided. The other part uses a vibration absorbing member 8 made of a rubber plate without any projection.

By adopting such a structure, FIGS.
Although the seismic isolation force is smaller than that of the structure of the fifth embodiment, it can be used in the case of a simple structure and a small load, and an effect similar to that of the structure of the embodiment of FIGS. be able to.

FIG. 8 is a perspective view of a further embodiment of the foundation structure of a building according to the present invention. FIG. 9 is a sectional view of a main part of FIG. 8, and FIG. View from the direction, (b)
9 is a sectional view taken along the line YY of FIG. In these figures, 1 is a concrete foundation, 2 is a wooden foundation beam arranged along the concrete foundation 1, 3 is a wooden pillar mounted at right angles to the foundation beam 2, 9 is a concrete foundation 1 Vibration absorbing members 5 inserted between the base beam 2 and bolts 5 for preventing the foundation beam 2 from lifting up.

The vibration absorbing member 9 used here is, for example,
It is made of a rubber material such as chloroprene-based synthetic rubber and natural rubber. As shown in FIGS. 8 and 9, the concrete foundation 1 and the foundation beam 2 are respectively arranged in a direction perpendicular to the longitudinal direction of the foundation beam 2. Arranged projections 9a and 9b are provided so that the projection 9a is engaged with the concave groove 1a provided on the concrete foundation 1, and the projection 7b is engaged with the concave groove 2a provided on the foundation beam 2. It has become.

This embodiment is different from the foundation structure of the building shown in FIGS. 3 to 7 in that the side walls 9c and 9 cover the side surfaces of the concrete foundation 1 in accordance with both rules extending in the longitudinal direction of the vibration absorbing member 9.
d, and as shown in FIG. 9 (a), the cross-section has a U-shaped cross-section. Projections 9a, 9
According to b, the short direction of the foundation beam 2 can be locked by the side walls 9c and 9d, so that the seismic isolation effect can be further increased.

FIG. 10 is a perspective view of a further embodiment of the basic structure of a building according to the present invention. FIG. 11 is a sectional view of a main part of FIG. 1, and FIG. Figure viewed from the direction,
(B) is a sectional view taken along line YY of FIG. 10. In these figures, 1 is a concrete foundation, 2 is a wooden foundation beam arranged along the concrete foundation 1, 3 is a wooden pillar mounted at right angles to the foundation beam 2, 10 is a concrete foundation 1 Vibration absorbing members 5 inserted between the base beam 2 and bolts 5 for preventing the foundation beam 2 from lifting up.

The vibration absorbing member 10 used here is made of, for example, a rubber material such as chloroprene-based synthetic rubber and natural rubber, and as shown in FIGS. The protrusions 10a and 10a are arranged in a direction perpendicular to the longitudinal direction of the foundation beam 2, respectively.
The protrusion 10a is engaged with a concave groove 1a provided in the concrete foundation 1, and the projection 10b is engaged with a concave groove 2a provided in the foundation beam 2.

This embodiment differs from the foundation structure of the building shown in FIG. 3 in that both sides of the concrete foundation 1 and the side walls 10 are covered so as to cover the side surfaces of the concrete foundation 1 and both sides extending in the longitudinal direction of the vibration absorbing member 10.
c and 10d, these sidewalls 10
As shown in FIG. 11 (a), c and 10d are different from the basic structure of the building of FIGS. 8 and 9 in that the cross section is in the shape of an "H" in cross section. By doing so, the longitudinal direction of the concrete foundation 1 and the foundation beam 2 can be locked by the plurality of projections 10a and 10b, and the short direction of the concrete foundation 1 and the foundation beam 2 can be locked by the side walls 10c and 10d. It can be even larger. Reference numeral 11 denotes a drain hole of about 5φ (pitch 500) provided in the side walls 10c and 10d for preventing rainwater from staying near the joint between the foundation beam 2 and the vibration absorbing member 10. ing.

It goes without saying that the basic structure of these buildings can achieve the objects and effects of the invention as in the above-described embodiment.

In the above embodiment, the case where the protrusions of the rubber plate of the vibration absorbing member are provided at right angles to the long axis direction of the concrete foundation 1 and the foundation beam 2 has been described. When it is provided in an inclined manner, it may be arranged in a “C” shape, an “X” shape, or the like.

Further, the method of inserting the rubber plate of the vibration absorbing member between the concrete foundation 1 and the foundation beam 2 is not limited to the method of the above embodiment, and various modes may be used. As a method of attaching the rubber plate of the member to either the foundation concrete 1 or the foundation beam 2 by using an adhesive, or mounting the rubber plate of the vibration absorbing member on the foundation concrete 1, Concrete 1
It may be performed when the surface is hardened or when the surface is hardening.

Further, not only a single rubber plate but also a composite rubber plate can be used as the vibration absorbing member.

In the above embodiment, wood is used as the material for the foundation beams and columns. However, the present invention can be similarly carried out when steel or concrete is used instead of wood. The intended purpose and effect can be achieved.

As described above, the present invention can cope with deformations such as compression, shear, and vibration by using a vibration absorbing member between the concrete foundation 1 and the foundation beam 2. It can reduce the impact force in the event of an earthquake, reduce the force, and can also serve as a seismic isolation. Excellent durability and requires little maintenance after specification. It is also useful for protecting the bottom surface of the foundation beam. The construction cost does not increase if the unit price is low and mass production is carried out. To make things possible.

[0051]

Industrial Applicability The present invention is to provide a building structure having vibration damping properties, remarkably large seismic isolation, and excellent economical efficiency, and has a great industrial effect. is there.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of an embodiment of a foundation structure of a building according to the present invention.

FIG. 2 is a perspective view of another embodiment.

FIG. 3 is a perspective view of an embodiment of another embodiment of the foundation structure of a building according to the present invention.

FIG. 4 is a perspective view of a main part of FIG. 3;

FIG. 5 is a sectional view of a main part of FIG. 3;

FIG. 6 is an explanatory diagram of a foundation structure of a building according to the present invention.

FIG. 7 is a perspective view of another embodiment of another embodiment of the foundation structure of the building according to the present invention.

FIG. 8 is a perspective view of an example of still another embodiment of the foundation structure of a building according to the present invention.

FIG. 9 is a sectional view of FIG. 8;

FIG. 10 is a perspective view of an example of still another embodiment of the foundation structure of a building according to the present invention.

FIG. 11 is a sectional view of FIG. 10;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Concrete foundation, 1a ... Concave groove, 2 ... Foundation beam, 2a
... concave grooves, 3 ... columns, 4 ... vibration absorbing members, 5 ... bolts, 7 ...
Vibration absorbing members, 7a, 7b: Protrusion, 9: Vibration absorbing members, 9a, 9b: Protrusions, 9c, 9d: Side walls, 10: Vibration absorbing members, 10a, 10b: Protrusions, 10c, 10d
... side walls.

Claims (6)

(57) [Claims] 1. A method for constructing a building on which a foundation beam constituting a foundation of a building structure is mounted on a concrete foundation,
A construction method for a building, wherein a vibration damping member for a building foundation made of a rubber plate and having elasticity is interposed between the concrete foundation and the foundation beam. 2. A plate which is inserted between a concrete foundation and a foundation beam constituting a foundation of a building structure on the concrete foundation and has a width equal to or close to the width of the concrete foundation and the foundation beam. And at least one of the concrete foundation and the foundation beam is formed on at least one surface of the plate-like body, and is engaged with a plurality of grooves extending in the width direction of the concrete foundation and the foundation beam. An anti-vibration member for a foundation of a building, comprising a rubber plate provided with a protruding portion and having elasticity. 3. A concrete base and a foundation beam that constitutes a foundation of a building structure on the concrete foundation, facing each other at substantially the same width as the width of the concrete foundation and the foundation beam. A plate-like body having an end side and forming an open end having a U-shaped cross section on one side of the concrete foundation and the foundation beam. The concrete foundation and the foundation beam are respectively provided on the upper and lower surfaces of the plate-like body. The concrete foundation and a plurality of grooves respectively provided in the width direction of the foundation beam, the projections engaging with each other, and the U-shaped open end is the upper end of the concrete foundation or the foundation beam. A vibration damping member for a foundation of a building, which is made of a rubber plate fitted to a lower end portion and has elasticity. 4. A concrete base and a foundation beam that constitutes a foundation of a building structure on the concrete foundation, facing each other at a distance substantially equal to the width of the concrete foundation and the foundation beam. A plate-shaped body having an end side and forming an open end having a shape of a cross section H having openings on both sides of the concrete foundation and the foundation beam by the end side; The concrete foundation and the foundation beam have projections that engage with a plurality of concave grooves respectively provided in the width direction of the concrete foundation and the foundation beam, and the opening end of the plate-like body is the concrete. A vibration damping member for a foundation of a building, comprising a base and a rubber plate adapted to be engaged with the foundation beam and having elasticity. 5. The groove formed in the concrete foundation and the foundation beam is provided at right angles to the longitudinal direction of the concrete foundation and the foundation beam.
Or a vibration damping member for a foundation of a building described in 4. 6. A concrete foundation, a foundation beam constituting a foundation of a building structure on the concrete foundation, and a vibration damping member for a foundation of a building according to claim 2 or 3 or 4 or 5. The basic structure of a building characterized by the following.