JP2014080770A - Column base part structure, and device for connecting column base part and horizontal member together - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep a column support function in a proper state over a long period.SOLUTION: The above problem is solved by a column base part structure in which a short column for replacement is installed in a detachably fixed manner in a corrosion-prone of a lower part of the column and which enables a corroded part of the short column to be replaced when the short column is corroded.

Description

  The present invention relates to a column base structure and a connecting device between a column base and a horizontal member for the purpose of improving the durability of the column by providing a structure in which the column base can be easily replaced.

  Conventionally, it is known that the connecting device between the column base and the horizontal member is fixed with a bolt or the like via a connection hardware, but the column base made of wood can be freely replaced with the column base. The connecting device connected in series is not known.

JP 2003-13502 A JP 7-42731 A JP 2004-60369 A

  Conventionally, the lower end of the pillar is easy to absorb moisture because it is in contact with the concrete foundation or on the fabric foundation, and depending on the conditions, the lower leg of the pillar is corroded around 50 years and cannot be used. There is a case.

  In a conventional wooden building, if the storage condition is good, it may be kept in a good state for 100 years or more (in some cases several hundred years).

  However, in places where moisture absorption and other installation conditions are not good, it is often the case that the lower end of the pillar is corroded within several decades, and its function is greatly reduced. For example, the base of the pillar in the building or the contact portion with the foundation or the foundation may be corroded, and the support function of the pillar may be significantly reduced. In such a case, replacing the corroded leg of the pillar can make the building more durable for more than 100 years.

 Conventionally, as reinforcement of the leg portion of the column, an invention is known in which a copper plate is wound around the outer periphery of the column leg portion, or a T-type reinforcing metal is in contact with the side surface of the leg portion of the column (Patent Document 1). Moreover, the connection structure reinforced with the volt | bolt and the metal fitting is known (patent document 2). Furthermore, there is also a proposal of a structure in which anchor bolt pillars are fixed on the foundation (Patent Document 3).

  However, a wooden short column (leg) of the same quality as the column can be easily replaced and the short column can be replaced as necessary to maintain the same appearance and maintain the column's support force for a long period of time. The structure is not known.

  Therefore, the inventor paid attention to the fact that the life of the pillar can be dramatically extended by constructing the easily corroded portion at the lower end of the pillar with a new short pillar of the same shape, thereby completing the present invention. It was.

  Usually, the pillars that are susceptible to corrosion are about 80mm from the lower end surface to the upper part of the column. As a result, it was possible to maintain the support function of the pillars by connecting them so that they could be replaced from the beginning, and the conventional problems were solved.

  That is, by contacting the upper end surface of the replacement short column with the lower end surface of the column and detachably connecting, the short column is replaced as necessary, such as corrosion of the column lower end, The purpose of maintaining the support function of the pillar can be achieved.

  The short column has the same cross-sectional shape and the same area as the main column, and the fibers are installed in the vertical direction, so that moisture etc. can pass through if dropped from the upper part of the column, and the same condition as the main column without joints is there.

  Since the main column and the short column are connected with a bolt or the like via an attachment metal, the strength of the short column is equal to or higher than that of the main column.

  The mounting hardware is, for example, a rectangular metal plate and a T-shaped metal plate, and the pillar and the horizontal member are fixed in a shape based on the design to constitute a connection structure.

  The height of the short column in the above is the length of the column that easily corrodes, but is usually around 80 mm. Although there is no restriction | limiting in this length, it is necessary to set it as the length of the part which the lower end part of a pillar tends to corrode at least.

  The short column is fixed by a mounting plate (connecting plate) and a fixing nail that are in contact with and fixed to the front, rear, left and right of the main column. This point is that the main column and the short column are integrally fixed, but there are no restrictions on the remaining points (for example, the width, length, thickness, etc. of the mounting plate). It suffices if the main column and the short column have substantially the same function and effect as the same column.

  Moreover, there is no concrete restriction | limiting also about the attachment state of an attachment plate. For example, if a recessed portion equivalent to the thickness of the mounting plate is provided on the column surface and the mounting plate is accommodated in the recessed portion, there is no restriction on the specific shape and structure such that the mounting state is flush.

  As long as the mounting plate has design strength, there are no specific restrictions on the outer shape, length, width and thickness, and material, etc., but usually a metal plate (such as stainless steel or copper plate) that does not rust is used. Is done.

  According to the present invention, since the portion where the strength of the column base portion has decreased as a result of long-term use can be easily replaced with the column installed, the support function of the column can be maintained in a good state for many years. There is.

  In addition, since the portion where the strength has been reduced is fixed by a mounting plate, it can be easily and easily replaced by removing the mounting plate, and it is merely a replacement operation, so that high technology is unnecessary. . That is, the above operation is the same as the replacement of parts of a general apparatus, and no special technique for replacement is required.

  In addition, before and after the replacement work, the external force applied to the pillar is only the external force that supports the pillar of the building, and there is no risk of damaging other parts of the building, and there is no risk of adverse effects. is there.

The front view of the coupling device of this invention. Similarly a cross-sectional enlarged plan view. The perspective view which abbreviate | omitted a part similarly. (A) An enlarged front view of the connecting plate, (b) An enlarged bottom view, and (c) An enlarged side view. (A) The cross-sectional perspective view of another Example, (b) The perspective view of a leg part similarly, (c) The partial front view which represented the connection state similarly.

  According to the present invention, in the conventional connecting device between a column and a horizontal member, the use period of the column is greatly increased by replacing the lower end portion of the column over a predetermined length (for example, 8 cm to 10 cm). It is a thing.

  In other words, the corroded portion of the column is configured to be replaceable in advance, and the useful life of the column is greatly increased by replacing the portion.

  An embodiment of the present invention will be described with reference to FIGS. The upper end surface of the replacement short column 1a is brought into contact with the lower end surface of the column 1, the common connecting plates 2 and 2 are brought into contact with the front and rear outer surfaces of the column 1 and the short column 1a, and the connecting plates 2 and 2 are connected to the peg 3 3 and the column 1 and the short column 1a are integrated into one column (FIG. 1).

  In this embodiment, the connecting plate 2 is provided on the front and rear outer surfaces of the column 1 and the short column 1a. However, the connecting plate 2 is in contact with the main column 1 and the short column 1a in contact with each other at the correct position. Therefore, it is not always necessary to provide the front and rear outer surfaces of the column 1 and the short column 1a, and it may be provided only on the front side or the rear side of the column 1 and the short column 1a.

  The T-shaped connecting plates 4 and 4 are brought into contact with the left and right outer surfaces of the column 1 and the short column 1a, and the column 1 and the T-shaped connecting plate 4 are fixed by the peg 3 (FIG. 3).

  The lower end side of the contact surface of the T-shaped connecting plate 4 with the short column 1a is bent in the direction opposite to the direction in which the protruding portion 4a protrudes, and the lower end portion of the short column 1a is connected to the bent portion 4b. The short pillar 1a is supported by contact (FIG. 1).

  The protruding portions 4a of the connecting plates 4 and 4 are inserted into the grooves of the horizontal member 5 that supports the floor plate, and the protruding portions 4a and the horizontal member 5 are penetrated by the connecting rod 7 and both ends of the connecting rod 7 are connected. It is fixed by screwing the nut. In the figure, 13 is a connecting hole, and 14 is a fabric foundation.

  Thus, the pillar 1, the short pillar 1a, and the horizontal member 5 are integrally connected by the connecting plates 2 and 4, and the composite type connecting device 10 in which wood and metal are integrated is configured.

  When the short pillar 1a is replaced, the peg 3 of the connecting plate 2 fixed to the main pillar 1 and the short pillar 1a is removed. And if the short column 1a is pressurized in the direction of the arrow 11 or 12 in FIG. 2, the short column 1a can be removed in the direction of the arrow 11 or 12, so that a new short column can be inserted into the removed part. The old and new short columns can be easily replaced.

  Another embodiment of the present invention will be described with reference to FIG. A fitting groove 16 is provided on the lower end surface of the column 15 having a circular cross section, and the protrusion 17 of the short column 15 a is fitted into the fitting groove 16.

  The connecting plate 18 is attached to the outer surface of the fitting portion of the fitting groove 16 and the protrusion 17 and is fixed by the pegs 3 and 3 so that the column 15 and the short column 15a are integrated. Since the column 15 and the short column 15a are integrated by the connecting plate 18, the column 15 and the short column 15a have the same function and effect as a single column.

  In this embodiment, the short column 15a can be easily separated by removing the connecting plate 18, so that the replacement work of the short column 15a can be completed easily and quickly.

DESCRIPTION OF SYMBOLS 1 Pillar 1a Short pillar 2 Connecting plate 4 T-shaped connecting plate 5 Horizontal member 10 Connecting apparatus

According to the present invention, in the conventional connection device between a column and a horizontal member, the use period of the column is greatly increased by replacing the lower end of the column over a predetermined length (for example, 8 cm to 10 cm). It is a thing.

Claims (5)

  A column leg structure characterized in that an upper end surface of a short column is abutted and fixed to a lower end surface of a column.   2. The columnar structure of a column according to claim 1, wherein the short column has the same cross section as the column, and the fiber direction is fixed to be vertical in the same manner as the column. The upper end surface of the short column is brought into contact with the lower end surface of the column, and the common connection plate is brought into contact with and fixed to the outer surface of the lower end portion of the column and / or the outer surface of the short column,
A common cross-section T-shaped connecting plate is contacted and fixed to the left and right outer surfaces of the lower end of the column and the left and right outer surfaces of the short column,
Insert a part of the protruding plate of the T-shaped connecting plate into the central groove of the floorboard horizontal member,
A connecting device between a column base and a horizontal member, wherein the horizontal member and the projecting plate are fixed by penetration with a common connecting rod.   4. The column base according to claim 3, wherein the protruding plate of the T-shaped connecting plate extends downward from the lower end surface of the short column, and an edged hole is provided in the extended portion. Device for connecting parts and horizontal members.   The lower end side of the contact surface with the short column of the T-shaped connecting plate is bent toward the short column side, and the lower end of the short column is brought into contact with the bent portion. 3. A connecting device between the column base and the horizontal member according to 3.

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