JP4687296B2 - Column base structure - Google Patents

Description

  The present invention relates to a column base structure.

  In a building such as a wooden house, as shown in FIG. 7, the lower end of a wooden column 51 is joined to the foundation via a column base 52, so that the axial force of the column 51 is reduced to the column base 52. There is known a structure for transmitting to the foundation 50 through the cable.

  By the way, because the temperature under the building floor is relatively small due to the influence of the ground, if hot and humid outside air enters the floor during the rainy season to early summer, condensation occurs in each part of the floor, such as the foundation 50 and the soil surface. To do.

  For this reason, conventionally, a plate-like water-stopping member for preventing the absorption of condensed water on the end face 56 is interposed between the end face 56 of the lower end of the pillar member 51 and the column base 52. It has been proposed (see, for example, Patent Document 1).

And if it is what prevents the dew condensation water which generate | occur | produces on the column base metal 52 side infiltrate to the column material 51 side in a water stop member, the dew condensation water which generate | occur | produces below the muzzle surface 56 of the column material 51 The water can be stopped with this water stop member.
JP 2003-213803 A

  However, under the floor as shown in FIG. 7, when dew condensation occurs on the underfloor heat insulating material 54 or the side surface 55 of the column material 51 installed on the lower surface of the floor material 53, the dew condensation water is the side surface (outer surface) of the column material 51. There is a risk that it will flow down to the lower end of the column member 51 through 55 and enter the gap between the column member 51 and the column base metal 52 due to a capillary phenomenon. In this way, if the condensed water enters the gap between the column member 51 and the column base metal 52, the condensed water comes into contact with the end face 56, and the condensed water is absorbed by the pillar member 51 from the end face 56. For this reason, there is a problem that the water content of the pillar material 51 is increased, and the environment becomes favorable for the growth and activity of the decaying fungus, and the pillar material 51 is easily decayed.

  The present invention has been made to solve the above-described conventional drawbacks, and an object of the present invention is to provide a column base structure that can sufficiently prevent water absorption from the end surface of the end and prevent the column material from decaying. is there.

In order to solve the above-mentioned problem, the column base structure of the present invention is provided between the bottom end 12 of the wooden column member 3 and the end receiving surface 15 of the column base hardware 2 that supports the column member 3. The water repellent exuded from the water repellent-impregnated sheet body 16 is transferred to the top surface 12 through the water repellent-impregnated sheet body 16 impregnated with the water repellent, and is repelled on the top surface 12. In the column base structure in which a liquid agent is applied, the water repellent-impregnated sheet body 16 is attached to the end face 12 via an adhesive tape 20 and the water repellent is attached to the adhesive tape 20. It is characterized in that a transition port 21 is formed for the water repellent of the impregnated sheet body 16 to migrate to the above-mentioned wood end surface 12 .

  Further, the column member 3 in which the water repellent-impregnated sheet body 16 is previously attached to the mouthpiece surface 12 is installed on the mouthpiece receiving surface 15 of the column base 2. The foam sheet was impregnated with a water repellent to form a water repellent impregnated sheet body 16.

  In the column base structure of the present invention, a water repellent-impregnated sheet body is interposed between the mouth end surface and the column base receiving surface of the column base metal, and the water repellent agent is applied from the water repellent-impregnated sheet body to the end surface of the water base. Transition. For this reason, even if the water repellent is applied to the end surface of the mouth and condensed water or the like enters the end surface of the mouth, it is repelled by the water repellent. Therefore, it is possible to prevent condensed water or the like from absorbing water from the end surface to the pillar material, and the pillar material is not easily decayed. By the way, when the water repellent is directly applied to the end of the wood without using such a water repellent-impregnated sheet body, it is dried (cured) until it can be handled (a state where it can be conveyed, etc.). ) Time is required and the amount of water repellent applied is difficult to control. On the other hand, if a water-repellent-impregnated sheet is used, unlike the case of applying a water-repellent agent, the drying time until handling becomes unnecessary becomes unnecessary and the amount of water-repellent agent applied is controlled Is no longer necessary. For this reason, while improving production efficiency and achieving cost reduction, the quality of a water absorption prevention function is stabilized. In addition, since it is not necessary to perform the work of applying the water repellent, the working environment in the factory is improved.

  In addition, if the water repellent-impregnated sheet body is previously attached to the end of the column material, the work of interposing the water-repellent-impregnated sheet body between the end of the column and the end of the column base metal on the spot is performed. You do n’t have to. That is, if the water repellent-impregnated sheet body is previously attached to the mouthpiece surface, it is only necessary to place (install) the column material on the mouthpiece receiving surface of the column base hardware, and the mouth end surface of the mouthpiece and the column base hardware. The water-repellent-impregnated sheet body is interposed between the two. In addition, since the work of adhering the water repellent-impregnated sheet body to the end surface of the sheet can be performed at a factory or the like, it can be accurately and reliably performed by a machine or the like. On the other hand, when performing the intervening work between the water mouth of the water repellent-impregnated sheet body and the base of the column base metal at the site, the worker himself must work in a narrow space. In other words, it is difficult to work, and the water-repellent agent impregnated sheet body may be displaced from the mouth end surface. If the water repellent-impregnated sheet body is displaced from the end surface, the water repellent is not applied to the entire end surface, and the function of preventing water absorption such as condensed water on the column material is inferior.

  The water repellent-impregnated sheet body is a foam sheet impregnated with a water repellent, which can be stably impregnated with the water repellent, and smoothly moves to the water repellent top. be able to. Furthermore, since the water repellent-impregnated sheet body is attached to the end of the wood through an adhesive tape, the attaching work can be simplified. In addition, if the adhesive tape has a transition opening for transferring the water repellent of the water repellent-impregnated sheet body to the end face, the water-repellent impregnated sheet body is reliably transferred through the transition opening. Therefore, the water absorption preventing function can be effectively exhibited.

  Next, specific embodiments of the column base structure of the present invention will be described in detail with reference to the drawings. 1 is a cross-sectional view of a column base structure, FIG. 2 is a perspective view thereof, and FIG. 3 is an exploded perspective view thereof. This column base structure includes a column base 2 that is installed and fixed on the upper surface of the foundation 1, and a wooden column 3 is supported by the column base 2.

  The column base 2 includes a base plate 5 and a support plate 7 disposed above the base plate 5 via a spacer 6. That is, the base plate 5 and the support plate 7 are each formed of a rectangular flat plate body, and the spacer 6 is formed of a cross-shaped cross section extending along the column axis direction of the column member 3. Then, the base plate 5, the spacer 6, and the support plate 7 are integrated by welding or the like.

  An insertion plate 13 is erected on the upper surface of the support plate 7 (the upper surface serves as a mouthpiece receiving surface 15 for receiving the bottom end surface 12 of the column 3). That is, the insertion plate 13 is connected to the support plate 7 by welding, for example, so as to rise from the mouthpiece receiving surface 15 along the column axis direction. Further, the insertion plate 13 is formed in a substantially rectangular shape, and both corners on the upper end thereof are rounded. In the insertion plate 13, for example, a pair of pin insertion holes 14, 14 are arranged in parallel along the horizontal direction.

  The base plate 5 is divided by spacers 6 to form four divided portions 5a..., And the divided portions 5a are provided with bolt insertion holes 8. An anchor bolt 9 is driven into the foundation 1, and the upper end portion of the anchor bolt 9 exposed (projects) from the upper surface of the foundation 1 is inserted into the bolt insertion hole 8 of the base plate 5, and the nut member 10. The column base 2 is fixed to the upper surface of the foundation 1 by screwing. In this case, it is not necessary to use it for all the bolt insertion holes 8..., Among the four bolt insertion holes 8..., For example, the anchor bolts 9, 9 may be inserted and the nut member 10 may be screwed. The support plate 7 is provided with a work hole 11, and the nut member 10 can be tightened through the work hole 11, thereby facilitating the tightening work.

  The column member 3 is made of square material, and a water repellent-impregnated sheet body 16 is attached to the bottom end surface 12 of the column member 3. In this case, a slit 17 into which the insertion plate 13 is inserted is provided at the lower end of the column member 3 along the column axis direction. The slit 17 opens in a pair of opposite side surfaces 18 a and 18 b and the end surface 12. In addition, a pair of pin insertion holes 19 and 19 are provided at the lower end portion of the column member 3 along a direction substantially orthogonal to the slit 17. The pin insertion holes 19 and 19 are opened to other side surfaces 18c and 18d different from the side surfaces 18a and 18b. Each pin insertion hole 19, 19 communicates with the slit 17 at a position below the upper end edge of the slit 17. In this case, the front end surface 12 is set to be approximately the same size as the front end receiving surface 15 of the support plate 7.

  The water repellent-impregnated sheet body 16 is obtained by impregnating a foam sheet made of urethane or the like with a water repellent. As the water repellent component, various materials such as a paraffin type, a silicon type and an alcosilane type can be used. In this case, various selections can be made in consideration of appropriateness of drug components (such as synthetic pyrethroids) and stability during storage.

  In this case, as shown in the simplified diagram of FIG. 6, the water repellent-impregnated sheet body 16 is attached to the end face 12 via the adhesive tape 20. And the adhesive tape 20 is what is called a double-sided tape which consists of a tape main body and the adhesive bond layer and adhesive layer which are attached to both surfaces of this tape main body. As the adhesive tape 20, for example, as shown in FIG. 5 (a), it is made of a rectangular sheet and has a large number of through holes (transition ports) 21... Or as shown in FIG. In addition, a rectangular frame shape can be used. In FIG. 5B, a rectangular sheet is provided with a rectangular through hole, and the transition opening 21 is configured by the rectangular through hole. The adhesive tape 20 may have a shape other than those shown in FIGS. 5A and 5B. For example, as a strip shape, the strip-shaped tape is cut into an arbitrary length, and is then placed at an arbitrary position. You may make it arrange | position to. That is, the water repellent-impregnated sheet body 16 can be bonded to the front end surface 12 and the water repellent can be transferred to the front end surface 12 even when the adhesive tape 20 is present.

  As shown in FIG. 4, the adhesive tape 20 has a release paper 22a attached to the one surface 20a side and the other surface 20b side attached to the water repellent-impregnated sheet body 16. Then, the water repellent-impregnated sheet body 16 to which the adhesive tape 20 is attached has a blocking sheet 22b made of release paper, a skin layer, or the like attached to the support plate corresponding surface 16b side. This is to prevent the water repellent of the water repellent-impregnated sheet body 16 from exuding to the outside before being attached to the end surface 12 and before being attached to the column base 2. .

  By the way, as a method of impregnating with a water repellent, there are roll coating, spray coating and the like on a production line. This is because it is easy to manage the coating amount, not manually, and uses a solvent in a dedicated facility, so there are few restrictions from the viewpoint of the working environment.

  Then, the water repellent-impregnated sheet body 16 is attached to the end face 12 of the pillar 3 in advance at a factory, for example. That is, the water repellent-impregnated sheet body 16 is bonded to the end face 12 via the adhesive tape 20 from which the release paper 22a has been peeled off, and is transported to the site in this bonded state. At this time, since the slits 17 are provided in the wood face 12 of the column member 3, the wood face 12 is divided into a first portion 12a and a second portion 12b. Therefore, for example, when the water repellent-impregnated sheet body 16 is provided with a slit and is erected on the column base 2, the insertion plate 13 enters the slit to divide the water-repellent-impregnated sheet body 16. do it. Alternatively, two water repellent-impregnated sheet bodies 16 may be used and attached to the first part 12a and the second part 12b, respectively. For this reason, the whole facet 12 is covered with the two water repellent-impregnated sheet bodies 16 and 16. It should be noted that the protective sheet 22b is still attached to the surface of the water repellent-impregnated sheet body 16 corresponding to the support plate.

  In the field, the column material 3 having the water repellent-impregnated sheet body 16 attached to the end face 12 is erected on the column base 2. At this time, the insertion plate 13 of the column base 2 is inserted into the slit 17 of the column member 3. Thereafter, the drift pins 24 and 24 are inserted into the pin insertion holes 19 and 19 of the column member 3. At this time, the pin insertion holes 19, 19 of the column 3 and the pin insertion holes 14, 14 of the insertion plate 13 have substantially the same diameter and axial center, and the drift pins 24, 24 are connected to the pin insertion holes 14, 14. Is also inserted. Thereby, the column member 3 is connected to the column base 2. In this case, as shown in FIG. 2, it is preferable that the openings of the slits 17 on the side surfaces 18 a and 18 b are closed with a caulking agent 25. As a result, it is possible to prevent intrusion of condensed water or the like into the column material 3 from the opening of the slit 17.

  Thus, in the standing state, the water repellent-impregnated sheet body 16 is interposed between the end face 12 of the pillar member 3 and the end face 15 of the pillar base 2. At this time, the water repellent-impregnated sheet body 16 receives the compressive load from the column member 3 and the water repellent exudes, but the water repellent exudes to the column base metal 2 side as a blocking sheet 22b. Is preventing by. Then, the exuded water repellent agent moves to the end surface 12 through the transition port 21 of the adhesive tape 20 as shown by the arrow in FIG. As a result, the column material 3 is impregnated with the water repellent from the end surface 12, and the water repellent is applied to the end surface 12.

  According to the above-mentioned column base structure, the water repellent-impregnated sheet body 16 is interposed between the end face 12 and the end receiving face 15 of the column base metal 2, and the water repellent-impregnated sheet body 16 extends from the end face 2. The water repellent agent can be transferred to. For this reason, since the water repellent is applied to the end face 12, even if condensed water or the like enters the end face 12, it is repelled by the water repellent. Therefore, it is possible to prevent dew condensation water or the like from absorbing water from the end face 12 to the pillar material 3, and the pillar material 3 is less likely to decay.

  By the way, when the water repellent is directly applied to the end surface 12 without using such a water repellent impregnated sheet body 16, it is dried to a state where it can be handled (a state in which conveyance or the like is possible). (Curing) Time is required and it is difficult to manage the amount of water repellent applied. On the other hand, when the water repellent-impregnated sheet body 16 is used, unlike the case where the water repellent is applied, the drying time until the state where handling is possible becomes unnecessary, and the amount of water repellent applied is reduced. Management becomes unnecessary. For this reason, while improving production efficiency and achieving cost reduction, the quality of a water absorption prevention function is stabilized. In addition, since it is not necessary to perform the work of applying the water repellent, the working environment in the factory is improved.

  In addition, if the water repellent-impregnated sheet body 16 is previously attached to the top end 12 of the column member 3, the water repellent impregnated sheet is provided between the end end 12 and the end support 15 of the column base 2 at the site. There is no need to perform the operation of interposing the body 16. That is, if the water repellent-impregnated sheet body 16 is attached to the front end 12 in advance, only the column member 3 is placed (installed) on the front end 15 of the post base 2 and the front end 12 and the post are placed. The water repellent-impregnated sheet body 16 is interposed between the leg fitting 2 and the wood mouth receiving surface 15. In addition, since the work of attaching the water repellent-impregnated sheet body 16 to the wood end surface 12 can be performed at a factory or the like, it can be accurately and reliably performed by a machine or the like.

  Furthermore, since the water repellent-impregnated sheet body 16 is obtained by impregnating a foam sheet with a water repellent, the water repellent can be stably impregnated, and the water repellent can be transferred to the top 12 of the water repellent. It can be done smoothly. Furthermore, since the water repellent-impregnated sheet body 16 is attached to the end face 12 via the adhesive tape 20 or the like, the attachment work can be simplified. Further, since a transition port 21 is formed in the adhesive tape 20 for transferring the water repellent of the water repellent-impregnated sheet body 16 to the end face 12, the water-repellent impregnated sheet body is provided via the transition port 21. 16 can be reliably transferred, and the water absorption preventing function can be effectively exhibited.

Although specific embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention. For example, the water repellent-impregnated sheet body 16 may be attached to the end face 12 at the site . Further, as the water repellent-impregnated sheet body 16 in the above embodiment, the foam sheet is impregnated with the water repellent, but the water repellent can be impregnated and a compressive load is applied. As long as the water repellent exudes, the sheet material to be used is not limited to the foam sheet. Furthermore, when using a foam sheet, it is not restricted to urethane. Further, the thickness (thickness) of the water repellent-impregnated sheet body 16 differs depending on the sheet material used, but the exuded water repellent moves to the top surface 12 and the water repellent surface 12 What is necessary is just to be able to impregnate an amount of the water repellent that will be applied to the agent. Further, as the water repellent used in the water repellent-impregnated sheet body 16, any water repellent may be used as long as it moves to the end face 12 and repels dew condensation water when applied to the end face 12. In addition, increase / decrease in the number of the pin insertion holes 14 of the insertion plate 13 of the column base metal 2 and the pin insertion holes 19 of the column material 3 corresponding to this is also arbitrary.

It is sectional drawing which shows embodiment of the column base structure of this invention. It is a perspective view of the said column base structure. It is a disassembled perspective view of the said column base structure. It is a simplification figure of the water repellent impregnation sheet body of the above-mentioned column base structure. It is a schematic diagram which shows the adhesive sheet affixed on the said water repellent agent impregnation sheet | seat body. It is a simplified view of a state in which the water repellent migrates from the water repellent impregnated sheet body. It is sectional drawing of the conventional column base structure.

Explanation of symbols

  2 .. Column base, 3.. Column material, 12 .. Kip surface, 15 .. Kick receiving surface, 16 .. Water repellent impregnated sheet body, 20 .. Adhesive tape, 21 .. Transition port

Claims (3)

A water repellent was impregnated between the bottom end (12) of the lower end of the wooden pillar (3) and the end receiving face (15) of the column base (2) supporting the pillar (3). The water-repellent agent exuded from the water-repellent agent-impregnated sheet body (16) is transferred to the top surface (12) through the water-repellent agent-impregnated sheet body (16), and is transferred to the top surface (12). A column base structure in which a water repellent is applied, wherein the water repellent-impregnated sheet body (16) is attached to the end face (12) via an adhesive tape (20), and the adhesive tape (20) A column base structure characterized in that a transition port (21) for allowing the water repellent of the water repellent-impregnated sheet body (16) to migrate to the above-mentioned top end surface (12) is opened . The column material (3) in which the water repellent-impregnated sheet body (16) is previously attached to the mouthpiece surface (12) is installed on the mouthpiece receiving surface (15) of the column base metal (2). The column base structure according to claim 1. The column base structure according to claim 1 or 2, wherein the foam sheet is impregnated with a water repellent to form the water repellent-impregnated sheet (16).