JP2010180654A - Wooden house - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reliably assure the earthquake resistance of a wooden house even if a person having little experience constructs the wooden house by eliminating the troublesome operations at site. <P>SOLUTION: A steel reinforcement 10 is fitted and fixed to the frame parts (2, 8, 7) of a framework which constitutes the partition wall or outer wall of a wooden framework house. The steel reinforcement 10 includes a frame 21 brought into contact with the four-side inner peripheries of the frame parts (2, 8, 7) and two braces 23 disposed crosswise while affixing the ends to four corners of the frame. The steel reinforcement 10 may simply affix the frame 21 to the framework frame part of the partition wall or the outer wall. Consequently, an operation for mounting a large number of fixing parts and a skill relating to the handling of each part are not required. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a wooden house using a frame construction method, and more particularly to a technique for increasing the earthquake resistance of a wooden house.

  Wooden houses with conventional construction methods (framework methods) have various advantages and are relatively strong against earthquake rolls, but they are vulnerable to direct earthquakes. Since the bracing used in the traditional frame construction method is wooden, if a heavy load is applied at a stretch as in the case of a direct earthquake, the quality of the wood used is poor, regardless of the quality wood used. This is because there is a possibility of damage and collapse.

For this reason, recently, as disclosed in Patent Document 1, it has been proposed to use metal bracing in a wooden house with a frame construction method. This is because if the metal bracing is arranged on the frame portion of the shaft assembly constituting the outer wall, the strength can be remarkably increased as compared with the wooden bracing.
JP-A-2005-213905

  The problem is complicated when the ends of the metal bracing are fixed to the four even angles of the frame of the frame. In Patent Document 1, an anchor bolt, a pulling metal fitting, and a flat metal fitting are arranged at the even angle portion to fix the end of the bracing, but when the number of parts used in the field increases, not only the work efficiency is bad, but also skilled The work accuracy tends to vary depending on the degree. In places where inexperienced personnel are in charge, there is a possibility that the required seismic strength cannot be sufficiently guaranteed.

  Accordingly, an object of the present invention is to ensure the seismic strength of a wooden house even when a person with inexperienced work is in charge by eliminating the trouble of work on site. .

  In order to achieve the object and solve the problem, the wooden house according to the present invention abuts the frame part of the frame constituting the partition wall or the outer wall of the wooden framed house on the inner periphery of the four sides of the frame part. An iron reinforcing member comprising a frame member (frame) and two braces (braces) arranged to cross each other with the ends fixed at the four corners of the frame member is fitted and fixed (claim 1).

  The steel reinforcing material to be arranged on the shaft frame part of the partition wall or outer wall has a frame material that contacts the inner periphery of the four sides of the frame part, that is, a frame material having a size suitable for the shaft frame part. This is a cross arrangement of the muscular intersections at the four even angles. Therefore, it is only necessary to simply fix the frame material to the partition wall or the shaft frame portion of the outer wall during the mounting operation. No skill is required for mounting a large number of fixing parts or handling individual parts.

  Since the iron bracing is incorporated in the iron frame material, the fixing strength of the end points of the iron bracing can be checked in advance at the production site.

  In addition, by fixing the frame material to the shaft frame portion, the columns and horizontal members (base, girders, beams, etc.) used in the shaft frame construction method, that is, the frame portion of the shaft frame are integrated with the iron reinforcement. Seismic strength is definitely improved compared to conventional metal bracing.

  According to a second aspect of the present invention, the iron reinforcing material includes a resin coating layer. When the iron reinforcing material is disposed on the outer wall, condensation is likely to occur on the surface of the iron reinforcing material due to the difference between the outside air temperature in winter and the room temperature, and rusting is likely to occur. Therefore, a resin film layer is provided on the surface of the iron reinforcing material to prevent dew condensation, and the deterioration of the iron reinforcing material due to rust is prevented so that the seismic strength can be guaranteed over a long period of time.

  According to a third aspect of the present invention, at least one iron reinforcing member is disposed on each of the four surfaces of the partition walls orthogonal to each other. In the case where there are orthogonal partition walls, the seismic strength can be increased by arranging iron reinforcing materials on the four orthogonal surfaces.

  This is particularly useful for improving seismic strength by renovation. This is because it may be difficult to dispose an iron reinforcing material on the outer wall from the viewpoint of improvement costs and the like at the time of reform.

  According to the wooden house according to the present invention, the seismic strength of the wooden house can be reliably increased by a relatively simple operation regardless of whether it is a new construction or a renovation. Even if it is not a skilled person, the work quality of seismic strength can be assured satisfactorily, so that it is possible to reduce the cost of the seismic structure in both new construction and renovation.

  FIG. 1 shows an embodiment of a wooden house according to the present invention. In particular, an arrangement example of iron reinforcing materials when renovating an existing wooden house will be described.

  For example, at least one iron reinforcing member 10 according to the present embodiment is disposed on the partition wall. Multiple may be used. 1 is a concrete foundation, 2 is a horizontal member (base) placed on the foundation 1, 3 is under the floor, and 4 is the ground surface (ground). In a cold district, it is desirable to fill the floor 3 with sand to fill the gaps to prevent the inflow of outside air.

  On the other hand, as shown in FIG. 2, the iron reinforcing member 10 disposed on the partition wall has at least each of the four surfaces of the partition wall M when there is a partition wall M having a planar cross shape (when the partition walls are orthogonal). It is desirable to distribute one. A plurality may be arranged. This is because by disposing the iron reinforcing material 10 in the wooden house, it is possible to most effectively prevent the shaft assembly body from being damaged or collapsed by the vibration regardless of the direction of the shaking at the time of the earthquake.

  Returning to FIG. 1, 6 is an outer wall, 7 is a column (intermediate column or the like) of a partition wall (M), and 8 is a horizontal member (girder, trunk difference, beam) other than the base 2.

  The steel reinforcing member 10 is fitted to a frame of a frame that is vertically and horizontally defined by openings of the partition wall (M) generated in the shaft assembly method, that is, the horizontal members 2 and 8 and the pillar 7 of the partition wall. And fix. At the time of renovation, for example, the decorative plate of the partition wall (M) is removed, and then the iron reinforcing material 10 is incorporated into the frame portion of the shaft assembly. If there is a problem with the size or material strength of the shaft assembly and it is not desirable to fit and fix the steel reinforcing member 10 as it is, after repairing the partition wall (M), such as replacing the column 7 of the shaft assembly An iron reinforcing material 10 may be incorporated.

  In general, since the frame portions (2, 8, 7) of the shaft assembly are substantially uniform in dimensions in the so-called conventional method (wooden shaft assembly method) (because they are standardized), the size of the steel reinforcing member 10 is large. The height (the vertical and horizontal dimensions) can be formed according to the size of the shaft frame. Mass production in factories is possible. Of course, in mass production, it is desirable to prepare a plurality of types of patterns according to subtle dimensional differences.

  The iron reinforcing member 10 includes a rectangular frame member (frame) 21 having a size corresponding to the frame portion of the shaft assembly, and two bracings (braces) 23 spanning the four corners of the frame member 21. Become. It is desirable to fix the braces 23 to the frame member 21 in advance. The material of the frame member 21 and the bracing 23 constituting the iron reinforcing member 10 is iron (including steel).

  The frame member 21 is formed into a shape and size that match the frame portion of the shaft assembly. This is because the outer peripheral surface of the frame member 21 can be fixed in contact with the inner peripheral surface of the frame portion of the shaft assembly. In order to ensure high strength even with a thin metal plate, the frame member 21 is preferably a so-called angle member having a substantially L-shaped cross section as shown in FIG. 3, for example. In terms of the balance between strength guarantee and cost, it is desirable that the frame member 21 is a steel plate on which rust prevention plating has been applied.

  As the bracing 23, an iron round bar, a square bar, an internal hollow round tube, a square tube or the like subjected to rust prevention plating can be used. The frame member 21 is not limited to a substantially L-shaped cross section, and a flat plate, a square tube, or the like can be used.

  When fixing the bracing 23 to the frame member 21, the end of the bracing 23 is firmly fixed by, for example, welding.

  When the iron reinforcing member 10 is fitted and fixed to the frame portion of the shaft assembly, for example, as shown in FIG. 4, bolts 25 are used. The bolt 25 fixes the iron reinforcing material 10 at each floor. In this embodiment, the two bottom surfaces of the frame member 21 are fixed to the horizontal member 2 (base) on the first floor, the two left and right side surfaces of the frame member 21 are fixed to the pillars 7, and the frame member 21 The two upper surfaces are fixed to a horizontal member 8 (for example, a girder) that divides the first floor and the second floor.

  The steel reinforcement member 10 on the second floor also fixes the bottom two places of the frame member 21 to the horizontal member 8, fixes the two left and right sides of the frame member 21 to the pillar 7, and fixes the two upper surfaces of the frame member 21. It is fixed to the horizontal member 8 on the top floor (for example, the second floor). Preferably, as shown in FIG. 4, the iron reinforcing material 10 (U) on the second floor part and the iron reinforcing material 10 (D) on the first floor part are connected and fixed by the same bolt 25 (C), and the two are connected. Integrate. In this way, unlike the case where each of the iron reinforcing members 10 is fixed independently, the steel reinforcing member 10 has an integrated connection structure from the first floor to the top floor (second floor in this embodiment) via the bolts 25 (C). It is possible to work jointly against rolling or pitching in the event of an earthquake, and it is possible to protect the structure from damage to the outer wall or collapse of the house that is likely to occur when the steel reinforcement 10 moves independently. Can increase the sex. After the iron reinforcing material 10 is incorporated, a suitable decorative board (for example, structural plywood, veneer, gypsum board) is attached, and then the surface of the partition wall (M) is made up with an interior sheet or the like, and the remodeling work is completed.

  Therefore, according to such a wooden house, it is possible to perform the renovation that reliably improves the earthquake resistance of the wooden house constructed by the conventional construction method by the iron reinforcing material 10 arranged on the partition wall (M) on the first floor and the second floor. I can do it.

  In the case of a wooden house where the partition walls (M) are not orthogonal, it is possible to increase the seismic strength by arranging the iron reinforcing material 10 on the appropriate partition wall (M) and also arranging the iron reinforcing material 10 on the outer wall. desirable.

  When the iron reinforcing material 10 is arranged on the outer wall, it is desirable to provide a resin layer having a heat insulating effect on the surface of the iron reinforcing material 10 in order to prevent water droplets (condensation) generated on the iron surface due to a difference in temperature. For example, urethane resin can be used. The resin layer having a heat insulating effect may be formed by so-called soaking when being produced in a factory. When processing on the spot, it can respond by spraying the resin material (for example, urethane) on the surface of the iron reinforcing material 10. The thickness of the resin layer is not required to be extremely thin or thick. Usually, it is desirable to provide a resin layer in the range of 5 to 15 mm.

  The iron reinforcing member 10 provided with a resin layer on the surface does not have to be used for the partition wall (M) having a small difference in temperature, but may be applied to the partition wall (M).

  Although the said embodiment demonstrated the renovation structure of a wooden house, the iron reinforcement material 10 can be used also in a newly built wooden house.

  In the case of a new construction, the steel reinforcing material 10 can be designed to be fitted and fixed to the shaft assembly of the outer wall portion. Therefore, it is not necessary to fit and fix the iron reinforcing material 10 to the partition wall (M). However, when it is not preferable to dispose the iron reinforcing member 10 on the outer wall for the convenience of design due to various reasons such as a heat insulating structure, the iron reinforcing member 10 can be disposed on the partition wall (M). Further, the iron reinforcing material 10 may be disposed on the partition wall (M), and the outer wall may be constructed by a shaft assembly method or a two-by-four (wooden framed wall construction method). When the iron reinforcing material 10 is arranged on the outer wall, it is desirable to load a heat insulating material.

  A wooden house usually has a hut (the space behind the inclined roof), but it is desirable not to provide a hut when implementing the present invention for a new wooden house. In other words, it is better to use a wooden house (for example, a so-called snow-free house) that does not make an inclined roof. This is to eliminate the temperature effect in the room due to the cool air behind the hut.

  A metal coil may be disposed in the brace 23. For example, if metal coils are placed at the four crossing positions, for example, at the top, bottom, left, and right, the brace 23 absorbs and relaxes vibrations flexibly in both vertical and horizontal movements during an earthquake. This is because vibration damage to the outer wall can be surely reduced.

It is a figure which illustrates the wooden house which concerns on embodiment with an iron reinforcement material. It is a figure which illustrates the arrangement | positioning state of the iron reinforcement material to the partition wall which concerns on embodiment. It is a perspective view which illustrates the iron reinforcement material which concerns on embodiment. It is a figure which shows the fixation structure of the iron reinforcement material which concerns on embodiment.

1 Foundation 2 Horizontal material (base)
3 Under the floor 4 Ground surface (ground)
6 Outer wall 7 Column (partition wall) 8 Horizontal member (girder, waistline, beam)
10 Iron reinforcement 21 Frame material (frame)
23 Bracing
25 Volts M Partition wall

Claims (3)

In the frame part of the frame that constitutes the partition wall or outer wall of the wooden framed house,
Fitting and fixing an iron reinforcing material comprising a frame material that abuts on the inner periphery of the four sides of the frame portion, and two braces arranged in an intersecting manner with the end portions fixed at the four corners of the frame material. A characteristic wooden house.   2. The wooden house according to claim 1, wherein the iron reinforcing material includes a resin coating layer.   The wooden house according to claim 1 or 2, wherein at least one iron reinforcing material is disposed on each of four surfaces of the partition walls orthogonal to each other.

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