JP5958984B1 - Manufacturing method of wooden building based on grid design method - Google Patents

Abstract

The present invention provides a design method for solving the problems in a wooden shaft construction method that can secure a filling region of a heat insulating material by simplifying the structure and reducing the bracing of the bearing walls. The present invention provides a wooden frame construction method, wherein a horizontal structural surface for fixing a reinforcing plate to a lattice assembly composed of horizontal members is provided above and below, and the upper and lower horizontal structural surfaces are supported at four corners. A grid in which a solid area in which bearing walls calculated from allowable stress calculation are arranged as one grid in a relationship between a column and the above and below horizontal construction planes and a column, and a whole building is designed by combining a plurality of such grids The design method was adopted. [Selection] Figure 1

Description

  The present invention relates to a wooden building, and more specifically, is a technique that contributes to the improvement of the wooden frame construction method. The structure is formed by forming a grid for each three-dimensional region composed of upper and lower horizontal structural surfaces, four corner pillars, and bearing walls. The present invention relates to a grid design method that simplifies and that each floor has a horizontal construction surface to improve seismic resistance, reduce bracing of the bearing walls, and uniformly fill the bearing walls with a heat insulating material.

  As a general construction method of wooden buildings, there is a conventional shaft construction method. The conventional shaft construction method is a construction method mainly supported by a framework such as columns and beams. Compared with the framed wall method, it has a relatively high degree of freedom in design because there are few walls that give strength. However, in order to ensure earthquake resistance, it is necessary to use a large number of diagonal members such as braces, struck beams, and struck foundations.

  The shaft construction method has a high degree of freedom in design, but depending on the shape of the wooden building, members of various sizes are used, and they may be assembled in a complicated manner. Increasing the number of types of materials complicates the construction method, increasing the number of work processes, resulting in a longer construction period.

  In addition, in the conventional method, it is a direction to use braces frequently on the wall to improve earthquake resistance, and there are more parts where the wall can not be uniformly filled with heat insulating material, and a sufficient heat insulating effect may not be obtained. Many. Moreover, since the floor and ceiling were not sufficiently filled with the heat insulating material, a sufficient heat insulating effect could not be obtained.

  In addition, when building a shed or roof, there is only work space on the shed beams and the main building, workers are forced to perform dangerous work, and there is a high possibility of falling accidents due to stepping off, making safe and efficient work possible. It was an extremely difficult situation. Therefore, there has been a demand for a construction method that simplifies the structure, improves earthquake resistance and heat insulation, and ensures safety during roof construction.

A load-bearing ceiling wall structure (see Patent Document 1) of a wooden house that uses the ceiling plate material of the wooden house as a strength member of the wooden house has been proposed and has become a publicly known technique. More specifically, in a frame framed by pillars, foundations, beams or girder, etc., the opening formed by a shed beam or girder overlaps with the periphery of the ceiling plate material for closing the opening with a predetermined width, and A notch having a depth substantially equal to the plate thickness of the ceiling plate material is formed, and a peripheral edge of the ceiling plate material is fitted into the notch, and the ceiling plate material is extended by a fixing means such as a nail or the like. It is a load-bearing ceiling wall structure of a wooden house characterized by being fixed to a small beam.
Although it is described that the strength of the ceiling is increased, there is no description about improvement of roofing workability by changing the procedure of building or simplification of the structure of the building, which led to the solution of the above problem. Not in.

Moreover, the technique (refer patent document 2) which improves the airtightness of a ceiling structure, workability, heat insulation, and earthquake resistance strength is proposed, and is a well-known technique. More specifically, in the ceiling structure in which the panel is interposed between the beams of the house or between the shed beams that are laid between the girders, the panel is composed of a face material and a foam heat insulating material, and at the center of one side of the face material, By leaving the outer peripheral part of the face material, the foam heat insulating material is integrally joined, by contacting the face material from the back side of the shed to the shed beam or from the indoor side to the shed beam, and fixing this, The panel is constructed.
Although the improvement of the heat insulating property of the ceiling is described, the description of the simplification of the structure of the building and the improvement of the earthquake resistance is not made, and the problem has not been solved.

In addition, a ceiling construction method and a technique for providing a ceiling panel (see Patent Document 3) are proposed in which the ceiling is unitized as a ceiling panel and the ceiling can be formed without hanging the ceiling panel from above. It is a known technique. More specifically, a ceiling panel is formed by attaching a gypsum board plywood to the runner and the stud, and at least one working hole is formed in the ceiling panel. The ceiling panel is suspended from above the wall panel surrounding the room and fixed to the wall panel. Then, above the ceiling panel, the floor panel is installed at the upper end of the wall panel, and adjacent floor panels are connected to each other by a floor panel fastening bolt inserted from the work hole. Finally, the work hole is closed with an auxiliary gypsum board plywood.
Although it is described that the strength of the ceiling portion is increased, the improvement of heat insulation is not described, and the problem has not been solved.

  The present inventor paid attention to the horizontal structure in order to solve these problems in the wooden frame construction method, which has become a conventional problem, that is, securing the filling region of the heat insulating material by simplifying the structure and reducing the bracing of the bearing walls. The grid design method according to the present invention can solve the above-mentioned problem by designing a whole building by combining a plurality of such grids with a specific three-dimensional area composed of the horizontal structure, columns and bearing walls as one grid. ”Has been completed. Furthermore, such a grid design method is a design method that not only solves the above-mentioned problems but also can provide a wooden building that can ensure the safety of workers in roof construction and is excellent in rigidity and weight balance.

JP-A-10-131369 JP-A-9-111944 JP 2003-96965 A

  In the conventional shaft assembling method, the present invention, in view of the problem that sufficient heat insulation is not obtained when trying to ensure earthquake resistance by bracing, between the upper and lower horizontal surface and the upper and lower horizontal surface The three-dimensional region in which the pillars supporting the four corners and the bearing walls obtained from the allowable stress calculation are arranged as one grid, and means for solving the problem by reducing the bracing is provided.

The present invention comprises a horizontal construction surface having two or more layers in a method for manufacturing a building by a wooden frame construction method, and the horizontal construction surface is composed of a lattice assembly composed of orthogonal horizontal members and a reinforcing plate for horizontal construction surface. Is fixed by fitting, and the fitting has a stepped portion at an edge of the horizontal structural surface reinforcing plate, and a vertical surface of the stepped portion and a side surface of the horizontal member having a rectangular cross-sectional shape; In the relationship between the horizontal structural surface and the pillar supporting the corners at the four corners, the solid region in which the bearing walls obtained from the allowable stress calculation are arranged as one grid, and a combination of such grids The design method according to the method is a method for manufacturing a wooden building based on a grid design method characterized by manufacturing the whole building.

The present invention also includes a horizontal construction surface having two or more layers in a method of manufacturing a building by a wooden frame construction method, wherein the horizontal construction surface is a lattice assembly composed of orthogonal horizontal members and a reinforcing plate for horizontal construction surface. Are fixed by fitting, and the fitting has a stepped portion at the edge of the horizontal structural surface reinforcing plate, and the side surface of the horizontal member having a rectangular shape in cross section with the vertical surface of the stepped portion. Doo is fit contact, in relation to the KanHashira be supported by the horizontal plane and此Re four corners, a placing the bearing walls obtained from allowable stress calculated solid area, a square in a plan view It is also possible to use a method for manufacturing a wooden building based on a grid design method, in which a certain three-dimensional region is used as one grid, and a design means based on a combination of such grids mainly manufactures the entire building.

Further, according to the present invention , the horizontal construction surface is fitted with a reinforcing plate for horizontal construction and a nail in a square opening of a lattice set in which a horizontal pulling is a horizontal member or a small beam and a grandchild beam are assembled in a lattice shape. It is also possible to adopt means fixed by wearing .

The present invention can also employ a means for nailing a reinforcing plate for vertical construction that has strength to a plurality of eaves pillars constituting the bearing wall .

  The present invention is also characterized in that the thickness and length of the columns arranged between the horizontal surfaces are uniform.

  Moreover, this invention makes it a means that the member used for the said grid is pre-cut.

  According to the grid design method of the present invention, the structure can be simplified and the walls, floors, and ceilings with high thermal insulation effects can be obtained, the work period is shortened, and the quality is improved. It is.

It is sectional drawing of the Example of the grid design method which concerns on this invention. It is a perspective view explaining the pole pillar and lattice set of the Example of the grid design method based on this invention. It is the perspective view and cross-sectional detail drawing which show the installation method of the reinforcement | strengthening board for horizontal composition of the grid design method which concerns on this invention. It is the top view and elevation which show the example of the house design by the grid design method which concerns on this invention. It is a cross-sectional detail drawing which shows the floor and ceiling of the Example in the grid design method based on this invention. It is a plane detailed drawing which shows the load-bearing wall of the Example in the grid design method which concerns on this invention.

The grid design method according to the present invention is a wooden frame construction method in which an upper and lower horizontal structural surface, a vertical column that supports the space between the upper and lower horizontal structural surfaces at four corners, and a load-bearing wall obtained by calculating the allowable stress level. The arranged solid area is set as one grid, and the entire building is designed by combining a plurality of such grids, the load-bearing wall is nailed to a plurality of vertical pillars with reinforcing plates for vertical construction, and the horizontal construction is The main feature is that it is a horizontal plane in which a horizontal plane reinforcing plate is fitted and nailed and fixed to a lattice set composed of large beams or small beams and grandchild beams. Embodiments will be described below with reference to the drawings.
It should be noted that the overall shape of the grid design method and the shape of each part shown in this embodiment are not limited to the embodiments described below, and are within the scope of the technical idea of the present invention, that is, the same operational effects. It can change within the range of the shape and dimension which can be exhibited.
Example 1

  The present invention will be described with reference to FIGS. 1 to 4 and 6. FIG. 1 is a cross-sectional view of an embodiment of a grid design method according to the present invention. FIG. 2 is a perspective view for explaining a lattice set composed of a saddle pole and a large pull, or a small beam and a grandchild beam in an embodiment of the grid design method according to the present invention. 3A and 3B are a perspective view and a detailed cross-sectional view showing a method of installing a horizontal structural reinforcing plate in the grid design method according to the present invention. 4A and 4B are a plan view and an elevation view showing an example of housing design by the grid design method according to the present invention. FIG. 6 is a detailed plan view showing a load-bearing wall of an embodiment in the grid design method according to the present invention.

  FIG. 2 (a) is a perspective view for explaining a lattice set formed by a saddle pillar and a large pull, or a small beam and a grandchild beam of a corresponding grid. FIG. 5B is a perspective view for explaining the pole and the large pull, or the small beam and the grandchild beam in a state where the upper floor is superimposed on the grid. Fig.3 (a) is a perspective view which shows the method of installation of the reinforcing plate for horizontal surface structures of this invention. FIG. 3B is a detailed cross-sectional view showing the structure of the pulling or the small beam and the grandchild beam and the horizontal structural surface reinforcing plate. 4A is a first floor plan view of the house, and FIG. 4B is a second floor plan view. FIG. 4C is an elevation view of the house in the direction of the girder, and FIG. 4D is an elevation view of the house on the wife side. FIG. 6A is a detailed plan view showing a bearing wall in which two braces are inserted between the pole posts. FIG. 6B is a detailed plan view showing a bearing wall in which one brace is inserted between the pole posts.

  First, the grid design method will be described. The grid design method is a design method for solving problems in the wooden frame construction method. The first problem is that the structural calculation for seismic resistance is a rough calculation that calculates the number of braces, and the basis for securing the strength is unclear, resulting in an overstrength structure. there were. Secondly, because the design flexibility is high, it is difficult to measure the common parts, so the labor for pre-cutting is heavy, and the parts are processed on site, leading to a prolonged construction period and an increase in cost. . Thirdly, there is a tendency to increase the number of braces placed in the wall in order to improve the seismic performance. For this reason, the filling volume of the heat insulating material is lowered, and the heat insulating performance is in the direction of decreasing.

  In order to solve these problems of the conventional shaft construction method, in the grid design method, first, the structural calculation is managed by the grid. Secondly, the structure of each floor is unified to form a horizontal surface. Third, the dimensions of the members used are made as uniform as possible.

  The contents for managing the structural calculation in the grid will be described. As the unit area, a square grid such as 8 tatami mats or 4.5 tatami mats is suitable for calculation, but a rectangular grid such as 6 tatami mats or 10 tatami mats may be used. If the unit area is a square, members with a common length can be used for the base and the large pull, or the large beam and the small beam, so the types of members are reduced, the work process is simplified, and the rigidity center and weight are reduced. It is possible to stabilize the structural balance by aligning the center of the height.

  For example, when an 8 tatami mat is used as a grid, a wooden building having the grid is a plan including the grid. The 8 tatami grid is not just a conceptual grid, but actually designed as an 8 tatami space. For the 8 tatami grid, the necessary load-bearing wall layout and structural balance are examined from the rigidity of the upper and lower horizontal structural surfaces by calculating the allowable stress level. Further, with respect to other grids in the wooden building, the horizontal structural surface, the arrangement of necessary bearing walls, and the structural balance are examined for each individual grid by calculating the allowable stress. Finally, the grids are combined to make an optimal wooden building as a whole.

  The unification of the structure of the horizontal surface and the uniform dimension of the members used will be described later.

  The configuration of the grid 1 will be described. The grid 1 is mainly composed of a horizontal surface 2 and a pole 8. In the case of a two-story building by this design method, the horizontal construction surface 2 is arranged as the first floor on the upper part of the foundation 10, and the pole 8 with a uniform thickness is erected on the upper part. The horizontal construction surface 2 is arranged as a second floor on the top of the column, and the column 8 having a uniform thickness is erected on the horizontal construction surface 2. Note that the first-floor pole 8 and the second-floor pole placed at the corner of the building are joined together by attracting hardware, and the through pillar is not used. The horizontal construction surface 2 is arranged as a hut floor on the upper part of the second-floor column 8.

  The formation of the large beam 5 and the small beam 7 constituting the second floor and the shed is adjusted to the size used for the largest grid in the entire building. In addition, the horizontal construction surface 2 is installed at the lower part of the hut where the floor does not exist. The weight of the horizontal structural surface 2 is increased compared to the floor of the conventional shaft construction method, but the structural balance can be achieved by aligning the center of rigidity and the center of weight of the entire building. It is possible to strengthen the surface 2 to compensate for some inconvenience due to the increase in weight.

  In addition, since the large beams 5 and the small beams 7 constituting the second floor and the hut floor are matched to the dimensions used for the largest grid in the entire building, the length dimensions of the floor pillars 8 are the same. It becomes possible. Since all the pillars 8 used on the floor are the same in thickness and length, the pillars 8 do not need to be located and can be used at any place on the floor.

  FIG. 1 is a schematic cross-sectional view of a two-story house designed by the grid design method. A first floor is disposed on the upper part of the foundation 10, and this part is the horizontal surface 2. The horizontal surface 2 of the first floor is composed of horizontal members such as a base 4 and a large pull 15 and a reinforcing plate 3 for the horizontal surface. The horizontal structural reinforcement plate 3 is firmly fixed to the horizontal member by a number of nails 6. The form of the horizontal structural surface reinforcing plate 3 will be described later.

  In the conventional shaft assembly method, joists and floor foundations are arranged on the base 4 and the large pull 15. The base 4, the large pull 15, the joists and the floor base are fixed to the extent that the floor base is not removed by the nails 6. Therefore, the floor does not constitute the horizontal surface 2. Therefore, in order to improve the strength of the foundation, it is necessary to reinforce it with an oblique member such as a fired foundation.

  On the upper part of the horizontal construction surface 2 on the first floor, a pole 8 having a uniform thickness is arranged. In order to give strength to the wall, the braces 9 are arranged obliquely with respect to the column 8, and the vertical construction surface reinforcing plate 14 is installed on the column 8. The number of braces 9 can be smaller than that of the conventional shaft assembly method. The vertical construction surface reinforcing plate 14 is firmly fixed to the column 8 by a number of nails 6.

  By reducing the number of braces 9, the heat insulation effect can be improved. In the bearing wall of the present embodiment, when two bracings 9 are installed between the two vertical pillars 8 as shown in FIG. 6A, the bracings 9 are provided between the vertical pillars 8 as shown in FIG. , Arranged on the paper up and down. An outer wall is installed on the outside air side of the column 8, and a vertical structural reinforcement plate 14 is installed on the room side of the column 8. If it is going to insert the heat insulating material 13 between the vertical pillars 8 in which the braces 9 are put into the rack, the thickness of the braces 9 becomes a problem. For example, when the dimension of the pillar 8 is 105 mm and the dimension of the brace 9 is 45 mm, the thickness of the heat insulating material 13 can only be 15 mm or less.

  On the other hand, as shown in FIG. 6B, when the bracing 9 is one, the thickness of the heat insulating material 13 can be increased to 60 mm. Thus, since the filling area | region of the heat insulating material 13 can be ensured by reducing the bracing 9, the heat insulation effect of a wall can be improved significantly.

  A floor on the second floor is arranged on the upper part of the first pillar 8 on the first floor. This part is the first floor ceiling and the second floor at the same time. The horizontal structural surface 2 is composed of horizontal members such as a large beam 5, a small beam 7, and a grandchild beam 16, and a horizontal structural surface reinforcing plate 3. The horizontal structural reinforcement plate 3 is firmly fixed to the horizontal member by a number of nails 6.

  In the conventional frame construction method, the floor foundation is arranged on the large beam and the small beam. The large beam, the small beam, and the floor base are fixed by the nails 6 to such an extent that the floor base does not come off. Therefore, the floor does not constitute the horizontal surface 2. Therefore, in order to increase the strength of the beam, it is necessary to reinforce with an oblique member such as a fired beam.

  The structure of the second pillar 8 and the brace 9 is the same as the structure of the first pillar 8 and the brace 9 on the first floor. A hut floor is arranged on the upper part of the pole 8 on the second floor, and this portion is the horizontal surface 2. This part is the ceiling of the second floor and the floor of the hut. The horizontal construction surface 2 is composed of horizontal members such as the large beam 5, the small beam 7, and the grandchild beam 16 and the horizontal construction surface reinforcing plate 3, similar to the construction of the floor on the second floor. 3 is firmly fixed to the horizontal member by a number of nails 6.

  In the conventional shaft assembly method, a plate material as a ceiling on the second floor is suspended from a roof beam. The plate material is merely a partition and cannot support a vertical load. Further, the roof beam and the ceiling are fixed by the nail 6 so that the ceiling does not fall. Therefore, the ceiling does not constitute the horizontal surface 2. Therefore, in order to increase the strength of the beam, it is necessary to reinforce with an oblique member such as a fired beam.

  Build a shed on the top of the shed. When building a hut in the conventional shaft assembling method, a worker is forced to perform dangerous work on the shed beam because there is no floor at the lower part of the shed. When a hut is built on the upper part of the hut floor, it is possible to prevent a fall accident caused by stepping off a foot or an accident in which an operator working on the lower floor is injured by dropping tools or materials. In addition, it is possible to lay the shed on the shed floor, and it is possible to work safely and efficiently.

  A field plate 11 is arranged in the upper part of the hut assembly. A roof finishing material such as a tile is disposed on the base plate 11. In general, when a roof is constructed in a conventional shaft construction method, an operator is forced to perform dangerous work on a shed or a main building. When constructing a roof in the upper part of the hut assembly, there is a floor at the lower part of the shed, so there is a fall accident due to a footstepping, or an accident that injures a worker who works on the floor immediately below by dropping tools or roofing materials, etc. Can be prevented. Moreover, it becomes possible to temporarily place the base plate 11 and the roofing material on the shed floor, and it is possible to work safely and efficiently.

  The configuration of pillars, beams, etc. will be described using the perspective view of FIG. The horizontal structural surface reinforcing plate 3 and the bracing 9 are omitted for the sake of explanation. The first floor, the second floor, and the cabin floor have substantially the same configuration. A base 4 or a large beam 5 surrounds the periphery of the horizontal structural surface 2, and a plurality of large pulls 15 or small beams 7 and grandchild beams 16 are orthogonal to each other to form a lattice set.

  The formation of the grid-structured horizontal members on each horizontal surface is made as uniform as possible. The dimensions of the base 4 and the large draw 15 are unified, and the formation of the large beam 5 and the small beam 7 is unified to the dimensions used for the largest grid in the entire building, and uses pre-cut (pre-processed) members. . The smallest member can be used for the grandchild beam 16. Moreover, since the formation of the large beam 5 and the small beam 7 is unified to the size used for the maximum unit area in the entire building, it is possible to unify the length of the column 8. The vertical column 8 uses a pre-cut member having a uniform width and length. By using many members of the same size, the structure can be simplified and the construction period can be greatly shortened, and a building having a well-balanced structure in which the center of rigidity and the center of weight of the entire building match can be achieved.

  The configuration of the grid will be described with reference to FIG. In this embodiment, the grid is 4.5 tatami mats, 7.5 tatami mats, and 8 tatami mats. FIG. 4A is a plan view of the first floor, where the upper right is the entrance and the upper part of the central portion is the atrium. The range that can be made into the grid 1 on the first floor is six locations of G1, G2, G3, G4, G5 or G6. Therefore, after calculating the allowable stress level as independent grids for G1 to G6 and examining the composition of the horizontal members used for the horizontal construction surface 2 and the arrangement of the bearing walls, the respective grids are finally combined and designed.

  FIG.4 (b) is a 2nd floor top view, and a center part is an atrium. On the second floor, the range that can be made on the grid 1 is G7, G8, G9, G10, or G11. Therefore, after calculating the allowable stress level as independent grids for G7 to G11 and examining the composition of the horizontal members used for the horizontal construction surface 2 and the arrangement of the bearing walls, the respective grids are finally combined and designed.

  4 (c) and 4 (d) are elevational views showing the position of the grid 1. FIG. G3, G4, G5 and G6 are grids 1 on the first floor, and G9, G10 and G11 are grids 1 on the second floor. In this embodiment, since the entire building is composed of a grid, it is possible to maximize the effects of the grid design method.

  Details of the configuration of the horizontal surface 2 will be described with reference to FIG. FIG. 3A is an exploded schematic view of the horizontal surface 2. The horizontal structural surface 2 includes a horizontal member and a horizontal structural surface reinforcing plate 3. The horizontal member on the first floor forms a lattice set so that a plurality of large pulls 15 are perpendicular to the inside of the base 4, and the horizontal member on two or more floors has a plurality of small beams 7 with respect to the large beam 5. The lattice set is configured so as to be orthogonal to the inner side of the book and further to the small beam 7 and the grandchild beam 16 being orthogonal. The reinforcing plate 3 for horizontal construction is nailed so as to cover the opening for each upper opening of the lattice set.

  As shown in FIG. 3 (b), the horizontal structural surface reinforcing plate 3 has a stepped portion 301 at its periphery, and comes into close contact with the side surface 701 of the horizontal member to close and close the opening. And fixed with a nail 6. About 10 nails 6 are driven per side. Thus, the horizontal member and the horizontal structural surface reinforcing plate 3 constitute the horizontal structural surface 2. Further, the horizontal construction surface reinforcing plate 3 can be made thicker than a conventionally used floor base plywood because the lower peripheral edge 301 abuts against the side surface 701 of the horizontal member, and the strength of the horizontal construction surface 2 is ensured. Is possible.

  Further, when the peripheral edge of the horizontal structure reinforcing plate 3 does not have the stepped portion 301, the horizontal structure 2 is prevented from being distorted only by fixing with the nail 6 due to an earthquake or the like, and sufficient strength cannot be maintained. . However, in the case where the peripheral edge has the step portion 301 and is always in contact with the side surface 701 of the horizontal member, the horizontal structural surface reinforcing plate 3 can exert an effect of preventing distortion, and the horizontal structural surface 2 It is possible to ensure the strength of the.

  Further, as another configuration of the stepped portion, the horizontal member may have a stepped portion, but a place where the nail 6 is hit is narrowed, and the horizontal structure reinforcing plate 3 and the horizontal member are sufficiently fixed. I can not. Further, when the thickness of the horizontal structural reinforcement plate 3 is increased in order to increase the strength of the horizontal structural reinforcement plate 3, the step portion of the horizontal member becomes elongated and the cross-sectional defect of the horizontal member increases. Insufficient strength. Therefore, it is preferable that the horizontal structural reinforcement plate 3 has a stepped portion 301.

As described above, the following effects can be obtained by the present invention.
Since such a wooden building is composed of grids, the allowable stress level is calculated for each grid, and the bearing walls can be arranged in a balanced manner, so that the earthquake resistance grade 3 can be obtained efficiently. In addition, it is possible to improve the earthquake resistance by improving the structural accuracy as compared with the conventional approximate wall amount calculation.

  In addition, by unifying the horizontal structure of the first floor and unifying the horizontal structure of the second floor and the hut floor, the structure can be simplified, and the number of firebeds and beams can be reduced. Efficiency can be increased. Furthermore, by making the dimensions of the components used as uniform as possible, it is possible to reduce the labor and cost of precutting, improve the efficiency of on-site work, reduce the work period and reduce costs, and further improve the rigidity of the entire building. It becomes possible to make a wooden building with a balanced structure where the center and the center of weight match.

  Further, by making the floor a horizontal surface, the number of bearing walls can be reduced, and the variability of the space such as the layout of the room can be improved by the partition walls.

  In addition, since the number of bracings of the load-bearing walls can be reduced, the heat insulation can be improved by making the filling of the heat insulating material in the load-bearing walls more uniform.

  In addition, since all the dimensions of the large beam and the small beam are unified, the length dimensions of the column are all unified. Since it is possible to use a pole with a uniform thickness and length, it is possible to save a lot of pre-cutting, and there is no need to determine the location of the pole at the work site, which can greatly increase work efficiency. It becomes possible.

  In addition, by setting the hut floor to a horizontal surface, it is possible to work on the hut floor in the process of building a hut or the process of rolling the roof. In the work of building a hut in the conventional shaft construction method and the process of roofing, because there is no floor at the bottom of the shed, workers are forced to perform dangerous work on the shed beams and the main house, whereas the shed When a floor is present, it is possible to work safely and efficiently on the cabin floor.

Further, since the hut floor has a horizontal surface, it is easy to effectively use the shed space as shed storage.
(Example 2)

Another embodiment will be described with reference to FIG. Parts similar to those in the first embodiment are omitted.
FIG. 5 is a detailed cross-sectional view showing another embodiment of the grid design method according to the present invention. FIG. 5A is a view in which the plate material 12 is arranged at the lower part of the horizontal construction surface 2 and the heat insulating material 13 is arranged in a hollow state. FIG. 5B is a diagram in which the horizontal structural surface reinforcing plate 3 is disposed below the horizontal structural surface 2 and the heat insulating material 13 is disposed hollow.

A configuration capable of uniformly filling the heat insulating material 13 into the horizontal surface 2 will be described.
As shown in FIG. 5A, by arranging the plate material 12 on the bottom surface of the horizontal composition surface 2, the horizontal composition surface 2 has a hollow structure sandwiched between the plate material 12 and the horizontal composition surface reinforcing plate 3. Then, the heat insulation effect can be improved by filling the inside of the horizontal surface 2 with the heat insulating material 13. The plate material 12 installed at the lower part of the horizontal construction surface 2 is fixed by the nail 6 to such an extent that the heat insulating material 13 does not fall.

  In addition, as shown in FIG. 5B, when the horizontal members such as the large beam, the small beam, and the grandchild beam have the same dimensions, the horizontal structural reinforcing plate 3 is also arranged on the bottom surface of the horizontal structural surface 2. It becomes possible. When such a configuration is adopted, the horizontal construction surface 2 has a hollow structure sandwiched between the horizontal construction surface reinforcing plates 3, so that the heat insulation effect is improved by filling the hollow structure portion with the heat insulating material 13. I can do it. Further, since the lower portion of the horizontal surface 2 is also fixed by the horizontal surface reinforcing plate 3, the strength of the horizontal surface 2 can be improved, the horizontal material used can be reduced, and the thickness of the horizontal surface can be reduced. The thickness can be reduced.

According to the present invention, the following effects can be obtained.
The first floor, the second floor, and the hut floor can be filled with a heat insulating material without any gap, and the heat insulation is improved from the bottom of the first floor to the back of the hut, thereby enhancing the energy saving effect.

  It is understood that the grid design method according to the present invention has great industrial applicability for the wooden frame construction method.

DESCRIPTION OF SYMBOLS 1 Grid 2 Horizontal construction surface 3 Horizontal construction surface reinforcement board 4 Base 5 Large beam 6 Nail 7 Small beam 8 Pillar 9 Bracing 10 Foundation 11 Base plate 12 Board material 13 Thermal insulation material 14 Vertical construction surface reinforcement board 15 Large drawing 16 Grandchild Beam G Grid unit 301 Stepped portion 701 Side

Claims (4)

In the manufacturing method of the building by the wooden frame construction method, it has two or more horizontal construction surfaces,
The horizontal construction surface is formed by fixing a lattice assembly composed of orthogonal horizontal members and a horizontal construction surface reinforcing plate by fitting,
The fitting has a stepped portion at the edge of the horizontal surface reinforcing plate,
The vertical surface of the stepped portion and the side surface of the horizontal member whose cross-sectional shape is rectangular come into contact with each other ,
In the relationship between the horizontal surface and the pillar supporting it at the four corners,
The solid area where the bearing walls obtained from the allowable stress calculation are arranged as one grid,
A method for manufacturing a wooden building based on a grid design method, characterized in that the entire building is manufactured mainly by a design means by a combination of such grids. In the manufacturing method of the building by the wooden frame construction method, it has two or more horizontal construction surfaces,
The horizontal construction surface is formed by fixing a lattice assembly composed of orthogonal horizontal members and a horizontal construction surface reinforcing plate by fitting,
The fitting has a stepped portion at the edge of the horizontal surface reinforcing plate,
The vertical surface of the stepped portion and the side surface of the horizontal member whose cross-sectional shape is rectangular come into contact with each other ,
In the relationship between the horizontal surface and the pillar supporting it at the four corners,
It is a three-dimensional region in which a bearing wall is obtained from the allowable stress calculation,
A solid area that is square in plan view is taken as one grid,
A method for manufacturing a wooden building based on a grid design method, characterized in that the entire building is manufactured mainly by a design means by a combination of such grids.   The horizontal construction surface is fixed by fitting and nailing a horizontal construction surface reinforcing plate to a square opening of a lattice assembly in which horizontal beams are extended or a small beam and a grandchild beam are assembled in a lattice shape. The method of manufacturing a wooden building based on the grid design method according to claim 1, wherein the method is a horizontal construction surface.   The wooden building based on the grid design method according to any one of claims 1 to 3, wherein a plurality of vertical pillars constituting the load-bearing wall are nailed to a reinforcing plate for vertical construction having strength. Manufacturing method.