JP2008038480A - Reinforcing structure for wooden horizontal member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcing structure for a wooden horizontal member, which can effectively enhance the strength of the wooden horizontal member by embedding a reinforcing bar in the wooden horizontal member. <P>SOLUTION: According to the reinforcing structure, a storage space 4 is secured near a lower portion of the wooden horizontal member 1 in a longitudinal direction, and the reinforcing bar 5 is stored in the storage space 4, followed by fixing the horizontal bar 1 and the reinforcing bar 5 together in one body by an adhesive 6 filled in the storage space 4. When a bending stress or a shearing stress is applied to the horizontal member 1, the stresses are efficiently transmitted via the adhesive 6 to the reinforcing bar 5 which positively bears the stresses. Thus without applying a tension to the reinforcing bar 5 by means of a jack or the like, the strength of the horizontal member 1 can be sufficiently enhanced. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention mainly relates to a reinforcing structure for wooden horizontal members such as beams and foundations in wooden buildings.

  As a reinforcement structure of wooden horizontal members such as beams and foundations in wooden buildings, for example, as disclosed in Patent Document 1 and Patent Document 2, a reinforcing bar is embedded in the lower part of the horizontal member, or the horizontal member There is known a structure in which reinforcing bars are attached to the lower surface of the steel plate to give a tensile force to these reinforcing bars.

JP-A-62-296045 JP-A-2005-30004

  However, the conventional reinforcement structure of wooden horizontal members requires complicated work such as applying a tensile force to the reinforcing bar using a jack or the like, for example, in the field, which deteriorates the workability of the horizontal member. It was.

  However, it is possible to efficiently transmit the bending stress and shear stress applied to the horizontal member to the reinforcing bar simply by embedding or attaching to the horizontal member without applying a tensile force to the reinforcing bar. There is a problem that sufficient strength cannot be obtained.

  Therefore, the present invention provides a reinforcing structure for a wooden horizontal member that can effectively increase the strength of the wooden horizontal member without solving the above-described problems and causing any trouble in the construction of the wooden horizontal member. Objective.

  In order to solve the above-mentioned problems, the present invention is a reinforcing structure for a wooden horizontal member 1 such as a beam or a foundation in a wooden building, and is accommodated in the vicinity of the lower portion of the wooden horizontal member 1 along its longitudinal direction. The space 4 is provided, the reinforcing bar 5 is accommodated in the accommodating space 4, and the wooden horizontal member 1 and the reinforcing bar 5 are integrally fixed by the adhesive 6 filled in the accommodating space 4. It is characterized by.

  Specifically, the reinforcing bar 5 is fixed to both ends of the bar-shaped part 10 formed by, for example, molding a high-strength fiber in a bar shape extending along the longitudinal direction of the wooden horizontal member 1. It comprises fixing portions 11 and 11 projecting in the radial direction of the rod-shaped portion 10.

  Further, the wooden horizontal member 1 is made of a laminated material in which a plurality of laminas 2 are stacked and joined, and a housing groove 3 is formed on the upper surface side or lower surface side of the lamina 2 in the vicinity of the lower part of the wooden horizontal member 1. The housing space 4 is configured by closing the housing groove 3 with the adjacent lamina 2.

  Further, the reinforcing bar 5 is arranged so as to pass the lower side of the through hole 20 for piping or wiring insertion formed in the wooden horizontal member 1.

  In the reinforcing structure of the present invention, the reinforcing bar is accommodated in the accommodating space provided in the lower part of the wooden horizontal member, and the wooden horizontal member and the reinforcing bar are integrated by the adhesive filled in the accommodating space. Therefore, the bending stress and the shear stress acting on the horizontal member can be efficiently transmitted to the reinforcing bar through the adhesive, and these stresses can be reliably borne by the reinforcing bar. This makes it possible to sufficiently increase the strength of the horizontal member without applying a tensile force to the reinforcing bar using a jack or the like as in the prior art.

  In addition, by accommodating the reinforcing bar in the horizontal member housing space, it is possible to eliminate the overhang of the reinforcing bar from the outer surface of the horizontal member. The material does not get in the way, and these joining and mounting can be performed without any trouble.

  In addition, since the reinforcing bar has a structure in which fixing parts that project in the radial direction are fixed to both ends of the bar-like part, the transmission efficiency of bending stress and shear stress acting on the horizontal member to the reinforcing bar is improved. Can be further enhanced, and the horizontal member can be reinforced more effectively.

  Furthermore, by using the rod-shaped part of the reinforcing bar that is formed by molding a high-strength fiber into a rod-like shape, it is possible to increase the bonding strength between the reinforcing member and the horizontal member and to integrate them more firmly. The horizontal member can be reinforced more effectively.

  Furthermore, in the horizontal member made of laminated wood, the reinforcing bar is inserted into the housing groove that constitutes the housing space formed in a part of the lamina. It can be incorporated and a reinforced horizontal member can be easily manufactured.

  Furthermore, reinforcing bars are provided for perforated horizontal members with through-holes to reinforce horizontal members whose strength has been reduced due to the through-holes, ensuring the same strength performance as non-porous horizontal members. Therefore, even a perforated horizontal member can be handled in the same manner as a non-porous horizontal member. For this reason, even if a perforated horizontal member is used in conjunction with the installation of water facilities, etc., there is no need to review the frame structure at all, and the problem that the structural plan must be changed by the equipment plan is solved. Can do.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 3 show a reinforcing structure of a wooden horizontal member 1 according to an embodiment of the present invention. The horizontal member 1 is used as a beam or a foundation in a wooden building, and a plurality of laminar plate-like laminas 2 are stacked up and down, and the laminas 2 are joined together with an adhesive. Made of laminated timber.

  An accommodation groove 3 is formed along the longitudinal direction on the upper surface side of the lamina 2 located at the lowermost portion of the horizontal member 1. As shown in FIG. 4, the housing groove 3 is connected to a long main groove portion 7 into which a rod-like portion 10 of a reinforcing member 5 described later is fitted, and both ends of the main groove portion 7, so that the reinforcing member 5 described later is connected. It has short sub-grooves 8 and 8 into which the fixing parts 11 and 11 are fitted, and is formed in a substantially I shape as a whole.

  Then, the lowermost lamina 2 is joined to the upper lamina 2 and the housing groove 3 is closed by the lower surface of the upper lamina 2 so that the lower part of the horizontal member 1 is located along the longitudinal direction thereof. A storage space 4 is provided. In addition, as the accommodation space 4, the accommodation groove | channel 3 is formed in the upper surface side or the lower surface side of the 2nd or 3rd lamina 2 located from the lower part of the horizontal member 1, and the upper or lower side is formed in it. You may comprise by closing the accommodating groove | channel 3 by joining with the adjacent lamina 2. FIG. Alternatively, the accommodation groove 3 may be formed on the lower surface side of the lowermost lamina 2 and the accommodation groove 3 may be used as the accommodation space 4 with the lower surface open.

  As shown in FIGS. 2 and 3, a reinforcing bar 5 is accommodated in the accommodating space 4 of the horizontal member 1, and the horizontal member 1 and the reinforcing bar are bonded by an adhesive 6 filled in the accommodating space 4. 5 is fixed integrally. That is, the reinforcing bar 5 is embedded and integrated in the lower part of the horizontal member 1.

  As shown in FIG. 5, the reinforcing bar 5 includes a bar-like portion 10 extending along the longitudinal direction of the horizontal member 1, and fixing portions 11, 11 fixed to both ends of the bar-like portion 10.

  The rod-shaped portion 10 is formed by molding high-strength fibers into a rod shape. Specifically, as a high-strength fiber, an aramid fiber having features such as light weight, toughness, excellent flexibility, and non-conductivity is used, and this aramid fiber and a synthetic resin are appropriately mixed to form a rod. The rod-shaped part 10 excellent in tensile strength is comprised by processing to. The rod-shaped portion 10 formed by molding such an aramid fiber into a rod shape is more easily adapted to wood than a steel rod, and has better adhesion to the horizontal member 1 than a steel rod. The adhesive strength between the horizontal member 1 and the reinforcing bar 5 by the adhesive 6 can be increased. In addition, as the rod-shaped part 10, it is not always necessary to use such a high-strength fiber formed into a rod shape. For example, a deformed reinforcing bar may be used.

  The fixing portions 11 and 11 are made of a metal or synthetic resin plate, and are provided so as to protrude substantially horizontally in the radial direction with respect to the rod-shaped portion 10. Note that the fixing portions 11 and 11 are not limited to the above-described plates, and may be nuts that are screwed into bolt portions formed at both ends of the rod-shaped portion 10, for example.

  The reinforcing bar 5 is accommodated in the storage space 4 of the horizontal member 1 during the manufacturing process of the horizontal member 1. That is, when a plurality of laminas 2 are stacked and joined, the reinforcing bar 5 is fitted into the accommodation groove 3 of the lowermost lamina 2 and further the adhesive 6 is filled into the accommodation groove 3, The reinforcing bar 5 is accommodated in the storage space 4 by joining the lower lamina 2 to the upper lamina 2.

  When the horizontal member 1 having the above structure is constructed as a beam or base of a wooden building, if bending stress or shear stress acts on the horizontal member 1, the adhesive is filled with the stress in the accommodation space 4 The reinforcing bar 5 can be efficiently transmitted to the reinforcing bar 5 via 6 and the stress can be borne by the reinforcing bar 5 to prevent the horizontal member 1 from being deformed or damaged.

  FIG. 6 shows a reinforcing structure of the wooden horizontal member 1 according to another embodiment. The horizontal member 1 is formed with a substantially horizontal pipe or through-hole 20 for wiring insertion along a direction orthogonal to the longitudinal direction. And the reinforcement bar 5 is provided so that the lower side of this through-hole 20 may be passed. Other configurations are the same as those of the embodiment shown in FIGS.

  Thus, by providing the reinforcing bar 5 with respect to the perforated horizontal member 1 having the through hole 20, the horizontal member 1 whose strength has been reduced due to the through hole 20 is reinforced, Equivalent strength performance can be secured, and even the perforated horizontal member 1 can be handled in the same manner as the non-porous horizontal member.

  The present invention is not limited to the above embodiment, and it is needless to say that many modifications and changes can be made to the above embodiment within the scope of the present invention. For example, in the above-described embodiment, one reinforcing bar 5 is embedded in the lower part of the horizontal member 1 along the longitudinal direction thereof. However, as shown in FIG. 5 may be embedded at intervals in the longitudinal direction, and a plurality of reinforcing bars 5 and 5 may be embedded in parallel to each other as shown in FIG.

  Further, the reinforcing structure of the present invention can be applied not only to a horizontal member that is a laminated material but also to a horizontal member that is a solid material. In this case, a reinforcing member is embedded in the lower portion of the horizontal member by joining a lower member having a receiving groove formed on the lower surface of the horizontal member, or by directly forming a receiving groove on the lower surface of the horizontal member. You can do that.

It is a disassembled perspective view which shows the reinforcement structure of the horizontal member which concerns on one Embodiment of this invention. Similarly, it is an enlarged longitudinal sectional view of the reinforcing bar portion. Similarly, it is an enlarged longitudinal sectional view of the reinforcing bar portion. It is the expansion perspective view which fractured | ruptured a part of lowermost lamina. It is the expansion perspective view which fractured | ruptured a part of reinforcement bar. It is a disassembled perspective view which shows the reinforcement structure of the horizontal member which concerns on another embodiment. It is a perspective view which shows the other example of arrangement | positioning of a reinforcement bar. It is a perspective view which shows another example of arrangement | positioning of a reinforcement bar.

Explanation of symbols

1 .... Wooden horizontal member 2 .... Lamina 3 .... Housing groove 4 .... Storage space 5 .... Reinforcing bar 6 ... Adhesive 10 ... Rod-like part 11 ... Fixing part 20..Through hole

Claims (5)

A reinforcing structure for a wooden horizontal member (1) such as a beam or a base in a wooden building, and a housing space (4) is provided in the vicinity of the lower part of the wooden horizontal member (1) along its longitudinal direction. The reinforcing bar (5) is accommodated in the accommodating space (4), and the wooden horizontal member (1) and the reinforcing bar (5) are bonded by the adhesive (6) filled in the accommodating space (4). Reinforced structure of wooden horizontal members, characterized in that is fixed integrally. The reinforcing bar (5) is fixed to both ends of the bar-shaped part (10) extending along the longitudinal direction of the wooden horizontal member (1) and the bar-shaped part (10). The reinforcing structure for a wooden horizontal member according to claim 1, comprising fixing portions (11) (11) projecting in a radial direction. The reinforcing structure for a wooden horizontal member according to claim 2, wherein the rod-shaped portion (10) of the reinforcing rod (5) is formed by molding high-strength fibers into a rod shape. The wooden horizontal member (1) is made of a laminated material obtained by stacking and joining a plurality of laminas (2), and the upper or lower surface side of the lamina (2) in the vicinity of the lower part of the wooden horizontal member (1). The housing space (4) is formed by forming a housing groove (3) in the wall and closing the housing groove (3) with an adjacent lamina (2). Reinforcement structure of the wooden horizontal member described. The reinforcing bar (5) is arranged according to any one of claims 1 to 4, wherein the reinforcing bar (5) is arranged so as to pass through the lower side of the through-hole (20) for piping or wiring insertion formed in the wooden horizontal member (1). Reinforcement structure of the wooden horizontal member described.