JPH11343668A - Support structure of wooden column - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support structure of a wooden column which can certainly follow the contraction of a long wooden column, and moreover can certainly transmit the horizontal force of the wooden column in the case of an earthquake and strong wind to a fixed member. SOLUTION: This support structure of a wooden column supports the in lower end of a long wooden column 12 in order to fix the position and the lower end of a support is supported by a support member 24 on an upper end side so as to be free in the axial direction of the wooden column 12 and positionally fixed in a direction perpendicular to an axial direction. An upper end support member 24 has an inside pipe 34 attached at an upper support position of the wooden column 12 and an outside pipe 36 which is attached to a horizontal member 42 and fitted the outside of the inside pipe 34 to keep it movably only in the axial direction of the wooden column 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support structure for a wooden column, and more particularly to a support structure for a wooden column capable of following the expansion and contraction of the wooden column in the axial direction.

[0002]

BACKGROUND OF THE INVENTION Generally, lumber products of wood are formed by sawing wood that has undergone a long drying process.

However, it is difficult to completely dry even after a long drying process.

Moreover, the lumber product is affected by the surrounding environment, the moisture content in the lumber product changes, and shrinkage occurs in the axial direction of the lumber product.

[0005] In particular, in the case of long lumber products such as wooden columns, the amount of shrinkage is extremely large.

In the case of erecting and supporting such a long wooden column, if the lower end of the wooden column is fixed and the upper end is also completely fixed, the wooden column contracts in the axial direction. Therefore, internal stress due to shrinkage is generated in the wooden column, and the wooden column is adversely affected.

Conversely, if the upper end of the wooden column is loosely supported so that it can follow the contraction of the wooden column in the axial direction, the force applied in the horizontal direction during an earthquake or strong wind can be transmitted to the fixed member. This is not possible, resulting in rattling.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to be able to reliably follow the contraction of a long wooden column and to make the wooden column horizontal during an earthquake or strong wind. An object of the present invention is to provide a support structure for a wooden column that can reliably transmit a directional force to a fixing member.

[0009]

Means for Solving the Problems The present invention has been made to achieve the above object, and the invention according to claim 1 supports the lower end of a long wooden pillar in a fixed position and the upper end thereof. By a top support member, freely supporting in the axial direction of the wooden column, the support structure of the wooden column to support the position fixed in a direction intersecting the axial direction, the upper end support member, the upper part of the wooden column An inner tube attached to the side support position, and an outer tube attached to the fixing member, which is attached to the outside of the inner tube and holds the inner tube so as to be movable only in the axial direction of the wooden column. Features.

According to the present invention, the lower end of the long wooden column is fixedly supported, and the upper end supporting member for supporting the upper end is formed of the inner tube on the wooden column side and the outer tube on the fixed member side. Forming
In the axial direction of the wooden column, it can be supported in a fixed position in the direction intersecting with the axial direction, and the upper end side support member can follow the contraction of the wooden column in the axial direction, and in the direction intersecting with the axial direction. Then, it can be set to a state that can be securely held.

According to a second aspect of the present invention, in the first aspect, one of the outer peripheral surface of the inner tube and the inner surface of the outer tube is formed as a smooth surface, and the outer peripheral surface of the inner tube or the outer tube of the outer tube is formed. A sliding member is provided on the other of the inner peripheral surfaces.

According to the present invention, in addition to the first aspect,
Since the outer peripheral surface of the inner tube formed on the basic surface is brought into contact with the inner peripheral surface of the outer tube provided with a sliding material, the sliding of the inner tube and the outer tube is improved, and the shaft of the wooden column is more reliably provided. Directional contraction can be followed.

According to a third aspect of the present invention, in the first aspect, a rubber is provided between an inner peripheral surface of the outer tube and an outer peripheral surface of the inner tube.

According to the present invention, in addition to the first aspect,
Due to the rubber provided on the inner peripheral surface between the outer pipe and the inner pipe, when the wooden column contracts in the axial direction, the rubber will shear and follow the contraction, and the wooden column will be When a horizontal force is applied, the force can be transmitted to the fixing member by the compression rigidity of the rubber.

According to a fourth aspect of the present invention, in the second aspect, rubber is provided between the inner peripheral surface of the outer tube and the sliding member.

According to the present invention, in addition to the state of claim 2,
The rubber provided between the inner peripheral surface of the outer tube and the sliding material prevents rattling between the inner tube and the outer tube, and can reliably transmit the horizontal force during an earthquake or strong wind to the fixing member.

According to a fifth aspect of the present invention, in the first aspect, the wooden pillar is inclined, and the upper end side supporting member is a surface facing at least downward of the outer peripheral surface of the inner pipe or at least this surface. One of the inner peripheral surfaces of the outer tube corresponding to the above is made smooth, the other is provided with a sliding material, and the inner peripheral surface of the outer tube including the position of the sliding material is provided with rubber.

According to the present invention, in addition to the state of claim 1,
By arranging the smooth surface and the lubricating material at least in the portion of the outer peripheral surface of the inner pipe and the inner peripheral surface of the outer pipe where the load is applied to the wooden column, the smooth surface and the lubricating material are reduced to shrink the wooden column in the axial direction , And the rubber can reliably transmit the horizontal force in the event of an earthquake or strong wind to the fixing member.

According to a sixth aspect of the present invention, in any one of the third to fifth aspects, the rubber is compressed by the outer tube and closely adhered to the outer peripheral surface of the inner tube or the wooden pillar. And

According to the present invention, in addition to any one of the third to fifth aspects, by compressing the rubber, the horizontal force at the time of an earthquake or a strong wind can be more reliably transmitted to the fixing member. .

According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the upper end side support member has a through bolt penetrating the wooden column, and the wooden column is provided outside the through bolt. It has a through hole having an inner diameter larger than the diameter.

According to the present invention, in addition to any one of the first to sixth aspects, in the case where the wooden pillar is broken by a through bolt penetrating the wooden pillar provided on the upper end side support member, In addition, the wooden pillars can be reliably prevented from falling, and the through holes of the wooden pillars are made larger than the outer diameter of the through bolts, so that the wooden pillars also reliably cope with axial shrinkage. Can be.

According to an eighth aspect of the present invention, in any one of the first to seventh aspects, the lower end of the wooden column is inserted into a steel pipe fixed to a beam, and is fixed to the steel pipe by a plurality of through bolts. It is characterized by that.

According to the present invention, in addition to any one of the first to seventh aspects, the lower end of the wooden pillar is inserted into a steel pipe fixed to a beam and fixed with a plurality of through bolts. In addition to the fixed state of the position on the lower end side of the column, a bending load can be applied to the wooden column, and a more reliable support state can be obtained.

According to a ninth aspect of the present invention, in any one of the first to eighth aspects, rubber is disposed between the inner pipe and the wooden pillar.

According to the present invention, in addition to any one of the first to eighth aspects, the rubber can follow the contraction and expansion in the radial direction intersecting the axial direction of the wooden pillar.

According to a tenth aspect of the present invention, the lower end of the long wooden column is supported in a fixed position, and the upper end is freely intersected with the axial direction of the wooden column by the upper end support member. A supporting structure of a wooden column supporting the position fixed in the direction in which the upper end side supporting member is provided with a rubber provided at an upper supporting position of the wooden column, and attached to a fixing member,
And a tube attached to the outside of the rubber to hold the rubber.

According to the present invention, the wooden pillar can be supported by the upper end side support member so as to be able to follow the contraction in the axial direction, and the rubber column is protected from contraction and expansion in the radial direction crossing the axial direction by rubber. Can be reliably followed.

[0029]

Embodiments of the present invention will be described below in detail with reference to the drawings.

1 to 6 are views showing a support structure for a wooden pillar.

FIG. 1 shows a state in which a plurality of wooden columns 12 are erected around a suspension floor 10.

The suspended floor 10 has a circular shape in which a plurality of floor beams 16 are radially arranged around a cylindrical steel pipe 14 and a glass floor material 18 is laid on the floor beams 16.
A suspending member 20 is attached to the outer end of each floor beam 16 and is suspended from above.

In the suspension floor 10, a passive vibration damping device (not shown) is provided in the central cylindrical steel pipe 14 so as to attenuate the vertical vibration of the entire floor. An outer end of each floor beam 16 is connected to a wooden column 12 erected at a corresponding position, and an attenuating material (not shown) is arranged between the end of the floor beam 16 and the wooden column 12. In addition, vibration during walking at the outer edge of the floor is attenuated.

The wooden pillar 12 is used as a so-called decorative pillar, and natural wood such as a cedar log is used.

The wooden pillar 12 is erected so as to open outward from the lower end to the upper end, and as shown in FIG.
2 and the upper end side is supported by an upper end side support member 24.

As shown in FIG. 3, the lower end side support member 22 has a cylindrical steel pipe 30 on the upper surface of a support member 28 disposed in a reinforced concrete floor 26 formed below the hanging floor 10. Is installed in accordance with the inclined state of the wooden column 12,
It is in a state of being embedded in the floor 26.

Then, the lower end of the wooden column 12 is inserted into the steel pipe 30, and four through bolts 32 are passed through the lower end of the wooden column 12 from the steel pipe 30 side and fastened and fixed to the wooden column 12. Such a bending load can be received by the lower end side support member 22.

Although not shown, an iron plate is wound around the lower end of the wooden pillar 12 around its outer peripheral surface, and an adhesive is injected between the iron plate and the outer surface of the wooden pillar 12 so that the steel pipe 30 is bonded. It is designed to be inserted inside.

At the time of constructing the floor 26, as shown in FIG. 2, concrete is poured into the wooden column 12 except for a mounting portion at the lower end thereof, and the steel pipe 30 is exposed. After the lower end of the wooden column 12 is inserted and fixed with the through bolts 32, concrete is filled and buried.

As shown in FIGS. 4 to 6, the upper end side support member 24 employs a double pipe structure in which an inner pipe 34 and an outer pipe 36 made of steel pipe are combined.

The inner tube 34 is attached to the outer peripheral surface of the upper supporting position of the wooden column 12, and an adhesive is injected between the inner tube 34 and the wooden column 12 to be bonded and fixed. It is supposed to be.

The surface of the outer peripheral surface of the inner tube 34 which faces downward on the inner slope is formed as a smooth surface 38.

Further, a rubber 48 is attached to the outer peripheral surface of the inner tube 34 except for the smooth surface 38. Rubber 48
For example, besides ordinary rubber, high-attenuation rubber or the like can be adopted.

The outer tube 36 integrally has a mounting piece 40, and is attached to a horizontal member 42 made of H-shaped steel as a fixing member so as to be supported by the horizontal member 42. Has become.

The outer tube 36 is vertically split at a position opposite to the mounting piece 40, and a pair of tightening pieces 44 provided at the split position are attached to the bolts and nuts 46. And can be tightened.

Further, a rubber 48 is attached to the inner peripheral surface of the outer tube 36 which faces the smooth surface 38 of the inner tube 34, and the inner peripheral surface of the rubber 48 has tetrafluoride as a lubricant. Ethylene material 50 is attached.

The outer tube 3 thus formed is
The inner tube 34 is inserted into the inner tube 6, and the fastening pieces 44 of the outer tube 36 are tightened with bolts and nuts 46, so that the rubber
8 is compressed, and the upper end side of the wooden column 12 is fixedly supported in a direction intersecting with the axial direction of the wooden column 12 via the inner pipe 34, so that the force in the horizontal direction at the time of an earthquake or a strong wind is securely ensured. It can be transmitted to the horizontal member 42 through the outer pipe 36, and the rattling of the upper end of the wooden column 12 can be prevented.

Further, since the smooth surface 38 of the inner tube 34 and the tetrafluoroethylene material 50 of the outer tube 36 are in contact with each other, the wooden column 12 is freely supported in the axial direction,
The contraction of the wooden column 12 is enabled, and the generation of internal stress in the wooden column 12 can be prevented.

The inner pipe 34 and the outer pipe 36 are provided with through holes 54 and 56 for passing through bolts 52, and the wooden column 12 is also provided with through holes 58 for passing through bolts 52. Are formed.

The through hole 58 of the wooden column 12 and the through hole 54 of the inner tube 34 are formed to have an inner diameter larger than the outer diameter of the through bolt 52 so that the wooden column 12 can follow the contraction in the axial direction. .

By providing the through bolts 52 in this way, even if the wooden column 12 is broken in the middle, the wooden column 12 can be prevented from falling.

FIGS. 7 and 8 are views showing a support structure for a wooden pillar according to another embodiment of the present invention.

In this embodiment, a state is shown in which the wooden columns 12 are vertically supported.

Although not shown, the lower end side support member embeds and fixes the steel pipe 30 in the above-described embodiment in a vertical state in the floor 26, and passes the steel pipe 30 and the lower end of the wooden column 12 through the bolt 3.
2 is fixed.

The upper end side support member 60 is provided with an inner tube 34 bonded to the upper end side of the wooden column 12 with an adhesive, and is disposed outside the inner tube. And an outer tube 62 attached to the outer tube.

Further, between the inner pipe 34 and the outer pipe 62, a rubber 64 is disposed in a compressed state.

The rubber 64 is bonded to one or both of the outer peripheral surface of the inner tube 34 and the inner peripheral surface of the outer tube 62 with an adhesive.

With such a configuration, an earthquake,
When a horizontal force is applied to the wooden column 12 in a strong wind, the horizontal force is reliably transmitted to the horizontal member 42 through the outer tube 62 due to the compression rigidity of the rubber 64, and the wooden column 12 is rattled. Can be prevented.

When the wooden column 12 contracts in the axial direction, the contraction of the wooden column 12 can be reliably followed by the shear deformation of the rubber 64.

In this embodiment, the outer tube 6
2 is merely a cylindrical steel pipe, but the tightening piece 44 as in the above embodiment is provided to
The rubber 64 can also be made compressible.

Other configurations and operations are the same as those of the above-described embodiment, and the description is omitted.

FIG. 9 is a view showing a supporting structure for a wooden column according to still another embodiment of the present invention.

In this embodiment, in addition to the state of the embodiment shown in FIGS. 7 and 9, the outer pipe 62, the inner pipe 34, and the wooden column 12 are connected by bolts 52, so that the wooden column Even if 12 is broken on the way, the wooden pillar 12 can be prevented from falling.

The outer tube 62 is connected to the wooden column 12 by a plurality of nails 70, and the rubber 64 is not fixed by an adhesive. When the wooden pillar 12 contracts in the axial direction, the nail 70 rotates at the position of the outer tube 62 and can follow the contraction.

Other configurations and operations are the same as those of the above-described embodiments, and the description is omitted.

FIG. 10 is a view showing a support structure for a wooden column according to still another embodiment of the present invention.

In this embodiment, the entire outer peripheral surface of the inner tube 34 is formed as a smooth surface 66 instead of the rubber 64 in the embodiment of FIGS. An ethylene tetrafluoride material 68 is provided as a material, and the smooth surface 66 and the tetrafluoroethylene material 68 can slide to follow the contraction of the wooden column 12 in the axial direction.

The horizontal force during an earthquake or strong wind is reliably transmitted to the horizontal member 42 via the inner pipe 34, the ethylene tetrafluoride 68 and the outer pipe 62.

Other configurations and operations are the same as those of the above-described embodiments, and the description will be omitted.

The present invention is not limited to the above embodiments, and can be modified into various embodiments within the scope of the present invention.

For example, in each of the above-described embodiments, the lower end side supporting member fixes the position of the lower end side of the wooden column and receives the bending load of the wooden column.
Not limited to this state, it is also possible to adopt a pin connection or the like that simply fixes the position without receiving a bending load.

Further, in the embodiment shown in FIGS. 1 to 6, rubber is provided separately for the inner tube and the outer tube, but it is also possible to provide them on either one. .

Further, in the embodiment shown in FIGS. 1 to 6, the inner tube is provided with a smooth surface and the outer tube is provided with an ethylene tetrafluoride material. However, the structure may be reversed. .

In each of the above embodiments, the support structure capable of following the contraction of the wooden column in the axial direction has been described.
Not limited to this example, for example, in the embodiment of FIG. 8 or FIG. 9, the inner pipe is removed, and the rubber is brought into direct contact with the outer peripheral surface of the wooden column, thereby intersecting the axial direction of the wooden column. It is also possible to follow the contraction and expansion in the radial direction, and furthermore, by arranging rubber between the inner pipe and the wooden column in each of the above embodiments, the radial direction of the wooden column It is also possible to follow the contraction and expansion of

[0075]

[Brief description of the drawings]

FIG. 1 is an overall view showing a standing state of a wooden column employing a wooden column supporting structure according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view showing a support structure of the wooden pillar in FIG. 1;

FIG. 3 is a side view showing a lower end side support member of FIG. 2;

FIG. 4 is an exploded perspective view showing an upper end side support member.

FIG. 5 is a longitudinal sectional view of the upper end side support member of FIG. 2;

FIG. 6 is a cross-sectional view of FIG.

FIG. 7 is a side view showing an upper end side support member in a wooden column support structure according to another embodiment of the present invention.

FIG. 8 is an enlarged sectional view taken along line VIII-VIII of FIG. 7;

FIG. 9 is a cross-sectional view of an upper end side support member of a wooden column support structure according to still another embodiment of the present invention.

FIG. 10 is a cross-sectional view of an upper end side support member of a wooden column support structure according to still another embodiment of the present invention.

[Explanation of symbols]

 12 Wooden pillar 22 Lower end support member 24 Upper end support member 26 Floor 28 Support material 30 Steel pipe 32 Through bolt 34 Inner pipe 36,62 Outer pipe 38,66 Smooth surface 42 Cross member 48,64 Rubber 52 through Bolt 58 Penetrating steel

Claims (10)

[Claims] An end of a long wooden pillar is fixedly supported at a lower end, and an upper end is freely fixed in an axial direction of the wooden pillar by an upper end supporting member so as to be fixed in a direction intersecting the axial direction. A support structure for supporting a wooden column, wherein the upper end side support member is attached to a fixed member at an upper side support position of the wooden column, and attached to an outer side of the inner tube, An outer tube for holding the inner tube so as to be movable only in the axial direction of the wooden column, and a supporting structure for the wooden column. 2. The method according to claim 1, wherein one of an outer peripheral surface of the inner tube or an inner surface of the outer tube is
A supporting structure for a wooden column, wherein the supporting structure is formed on a smooth surface, and a sliding material is provided on the other of the outer peripheral surface of the inner tube and the inner peripheral surface of the outer tube. 3. The method according to claim 1, wherein a gap between an inner peripheral surface of the outer tube and an outer peripheral surface of the inner tube is
A support structure for wooden columns, characterized by being provided with rubber. 4. The wooden column supporting structure according to claim 2, wherein rubber is provided between an inner peripheral surface of the outer tube and the sliding member. 5. The wooden pillar according to claim 1, wherein the wooden pillar is in an inclined state, and the upper end side supporting member is a surface facing at least downward of the outer peripheral surface of the inner tube or at least an outer tube corresponding to this surface. A supporting structure for a wooden column, wherein one of the inner peripheral surfaces is a smooth surface, a sliding member is provided on the other, and rubber is provided on an inner peripheral surface of the outer tube including the position of the sliding member. 6. The support structure for a wooden column according to claim 3, wherein the rubber is compressed by the outer pipe and is closely attached to an outer peripheral surface of the inner pipe. 7. The method according to claim 1, wherein the upper end side support member has a through bolt penetrating the wooden pillar, and the wooden pillar has an inner diameter larger than an outer diameter of the through bolt. A support structure for a wooden pillar, which has a through hole. 8. The wooden structure according to claim 1, wherein a lower end of the wooden pillar is inserted into a steel pipe fixed to a floor, and is fixed to the steel pipe by a plurality of through bolts. Pillar support structure. 9. The support structure for a wooden column according to claim 1, wherein a rubber is provided between the inner tube and the wooden column. 10. A lower end of a long wooden pillar is fixedly supported, and an upper end is freely fixed in an axial direction of the wooden pillar by an upper end support member, and is fixed in a direction intersecting with the axial direction. A support structure for supporting a wooden column, wherein the upper end side support member is provided with a rubber provided at an upper side support position of the wooden column, and is attached to a fixing member, and is attached to an outer side of the rubber to attach the rubber. A supporting structure for a wooden column, comprising: a holding tube;