JP2011042957A - Wooden frame body for unit building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wooden frame body for a unit building, the strength of which is increased without the use of a complicated constitution, and which also facilitates the design of a reinforcing fitting to reinforce the wooden frame body in accordance with a desired earthquake-resistance strength. <P>SOLUTION: This quadrangular wooden frame body A1 for the unit building is used when the building such as a sunroom, a conservatory and a greenhouse is constructed by using a component unit. Recesses 16, into which the reinforcing fitting 21 made of a metal plate material formed with an L-shaped lateral surface in accordance with an angle of a corner portion 12 can be fitted, are provided in the outer peripheral surfaces 15 of the corners 21 of the frame body A1, respectively. The wooden frame body A1 is attached by means of a fixing member 3 in a state in which the reinforcing fittings 21 are fitted into the recesses 16, respectively. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  In the present invention, a building such as a sunroom, a conservatory, or a greenhouse is constructed by assembling and attaching each component (each component unit) that has been produced in advance in a factory or the like to a framework such as a foundation or a pillar of a construction site More specifically, regarding the wooden frame for a unit type building used at the time, the angle of the wooden frame can be maintained by reinforcing the corners, and the rigidity of the wooden frame can be increased, for example, the earthquake resistance can be increased. Furthermore, the present invention relates to a wooden frame for a unit type building, in which the size of the reinforcing bracket of such a wooden frame can be set in accordance with the desired seismic strength.

  Conventionally, for example, as described in Patent Document 1, for example, an existing building such as a house is expanded with a transparent wall structure such as a solarium, a conservatory, etc. Or making things. As a construction method of such a transparent material wall structure building, for example, a wooden frame used for construction is produced in a factory in advance, and these are transported to a construction site to construct a framework such as a foundation and a pillar of the construction site. The construction method of the unit type building of attaching transparent plate materials, such as a glass plate, to the wall surface and the roof surface was carried out. In such a construction method, it is desirable that the wooden frame to be used is hardly distorted, and it is desirable that the wooden frame is excellent in strength from the viewpoint of the seismic strength of the building.

  On the other hand, conventionally, various means for reinforcing a frame have been proposed. For example, Patent Document 2 discloses that “a crossing portion of at least two pieces of wood that intersect each other in the horizontal direction and the vertical direction like columns and girders. A bracelet that covers the side face of each piece of wood and the side face of the sandwiched corner formed between the pieces of wood, and a locking piece that is fastened to the upper surface of the horizontal wood provided at the end of the streak piece The shaft reinforcing bracket characterized in that a portion along the side surface of each timber of the stiffener and the engaging portion is attached to the wood by a binding means such as a nail ", Patent Document 3 “One or both of a pair of left and right wooden vertical frame members arranged with a predetermined unit interval is formed by projecting a flat column at both upper and lower ends, A half-cut flat portion is provided at both the upper and lower ends, which is substantially the same as the structure obtained by half-cutting at the center in the longitudinal direction of the shape. The cross section of the main material part between the parts is formed as a half of the column material, and it is formed as the left and right wooden vertical frame main parts, or the wooden vertical frame main parts and the wooden vertical frame main parts. While the wooden vertical frame auxiliary material is integrated with a wooden horizontal frame material to form a rectangular frame body having the same thickness as the pillar material, the widths of both members are adjusted within the rectangular frame body. A plurality of penetrating members and inter-column members, each of which regulates the width of each member so as to have the same thickness as the column material dimensions, are arranged at an appropriate interval, and are integrated with each other. At the boundary position, a thin steel plate strut is obliquely placed and interposed, and corner metal fittings with connecting bolt holes integrated at both ends are integrated into the corners of the rectangular frame body to connect the corner metal fittings. A unit bearing wall for a wooden frame structure, wherein a through hole is formed in a rectangular frame main body according to a bolt hole Body "has been proposed.

JP 2004-27531 A JP-A-8-226174 Japanese Patent Laid-Open No. 11-100956

  However, none of the above-mentioned conventional reinforcing means can reinforce the strength of the wooden frame without depending on the complicated configuration. For example, the wooden frame is reinforced in accordance with the desired seismic strength. The point of facilitating the design of the reinforcing bracket to be made was not particularly taken into consideration.

  The present invention has been made in view of the above problems, and can reinforce the strength of the wooden frame for a unit type building without using a complicated structure. Further, the wooden frame can be adapted to the desired seismic strength. It is an object of the present invention to provide a wooden frame for a unit type building that can easily design a reinforcing metal fitting that can reinforce the frame.

  That is, the present invention is a rectangular wooden frame for a unit type building used when building a building such as a sunroom, a conservatory, or a greenhouse using a component unit, and each corner of the frame. Each of the outer peripheral surfaces is provided with a recessed portion that can be fitted with a reinforcing metal fitting made of a metal plate material so as to be L-shaped in accordance with the angle of the corner, and the reinforcing fitting is fitted into each recessed portion. Provided is a wooden frame for a unit type building which is attached by a fixing member in a state. Here, in the wooden frame of the present invention, the reinforcing metal fitting further includes an L-shaped ridge along the length direction of the metal plate material on the attachment surface to the wooden frame. It is more preferable that the body further includes a concave portion corresponding to the L-shaped convex portion in the concave portion. Further, it is more preferable that the unit type building is a unit type transparent material wall structure building, and the wooden frame is a member to which a transparent plate is attached as a face material.

Furthermore, the wooden frame for unit type building of the present invention determines the building model of the unit type building, calculates the total weight of the building model, selects the seismic intensity at the time of reinforcement, The horizontal force at the time of earthquake in seismic intensity is calculated, the horizontal force H acting on one frame of the wooden frame is calculated from the horizontal force at the time of earthquake, the frame model of the wooden frame is then determined, and the horizontal The maximum action cross-sectional force M _max generated at the corner of the frame model at the force H is calculated, and the reinforcing bracket model with the selected shape and material is determined. The allowable bending stress degree of the material of the reinforcing bracket model and the above and a maximum working member forces M _max, and calculate the section modulus of the required reinforcing bracket model to withstand the said maximum working member forces M _max, so as to have a size of the cross section to be the cross section coefficient, the reinforcing bracket model The width and thickness of the metal plate material, or the above The width of the genus plate material, the thickness and the L-shaped ridge having a width, height and is obtained by setting a more preferred. Here, the frame model includes a frame shape of the frame, a node position, a pin fulcrum, a roller fulcrum, a separation distance between the roller fulcrum and one node adjacent thereto, a material of wood constituting the frame, It is preferable that the size of the wood is modeled.

  According to the wooden frame of the present invention, the outer peripheral surface of each corner of the frame (the outer side surface of the frame or the outer frame surface in the width direction) is formed to have a side L shape according to the angle of the corner. Each of the recesses is provided with a recess having a shape corresponding to the shape of the reinforcement bracket so that the reinforcement bracket made of a metal plate material can be fitted, in other words, the reinforcement bracket can be fitted. Since it is attached by the fixing member in the fitted state, it becomes possible to reinforce the corners of the frame body regardless of a complicated structure. Here, the reinforcing metal fitting is attached to the wooden frame, that is, the surface on the fitting side of the frame into the recess, and further, the L-shaped ridge along the length direction of the metal plate, in other words, For example, an L-shaped ridge formed in the side L-shape corresponding to the shape of the metal plate material formed in the side L-shape is provided, and the frame is further provided in the recess. For example, when the reinforcing bracket is made of a metal plate having the same length, thickness and width, according to the reinforcing bracket having such a configuration, High reinforcement strength can be obtained. In addition, when the unit type building of the present invention is a unit type transparent material wall structure building, and the wooden frame is to be attached with a transparent plate as a face material, it can be used for daylighting such as a solarium, a conservatory, and a greenhouse. Since it is possible to reinforce the wooden frame of the unit type transparent material wall structure building which is desirable to be superior, it is more effective.

Further, the wooden frame of the present invention determines the building model of the unit type building, calculates the total weight of the building model, selects the seismic intensity at the time of reinforcement, and at the time of the earthquake at the seismic intensity A horizontal force is calculated, a horizontal force H acting on one frame of the wooden frame is calculated from the horizontal force at the time of the earthquake, and then a frame model of the wooden frame, preferably a frame shape, a node position, a pin fulcrum, The frame at the horizontal force H is determined by determining a frame model that models the roller fulcrum, the distance between the roller fulcrum and one node adjacent to the roller fulcrum, the material of the wood constituting the frame, and the dimensions of the wood. The maximum acting sectional force M _max generated at the corner of the body model is calculated, and further, a reinforcing bracket model in which the shape and material are selected is determined, and the allowable bending stress degree of the material of the reinforcing bracket model and the maximum acting sectional force M are determined. from the _max, to said maximum effect cross-sectional force _{M max} The width and thickness of the metal plate material of the reinforcing bracket model, or further, an L-shape so that the section modulus of the reinforcing bracket model required to obtain If it is a reinforcing metal fitting provided with ridges, the width and thickness of the metal plate of the reinforcing metal fitting model and the width and height of the L-shaped ridges are set, and the expected earthquake resistance Since the dimension can be set according to the strength, the reinforcing strength of the wooden frame can be adjusted efficiently without complicated configuration and complicated calculations.

  According to the present invention, it is possible to reinforce the corners of the wooden frame regardless of a complicated structure. Furthermore, the wooden frame can be used without using a complicated configuration or performing a complicated calculation. It becomes possible to adjust the reinforcement strength of the frame efficiently.

It is a schematic longitudinal cross-sectional view of the wooden frame explaining the 1st structural example of the wooden frame of this invention. It is a partially expanded schematic perspective view explaining the structure of the wooden frame main body of the said 1st structural example, and a reinforcement metal fitting. It is a partially expanded schematic perspective view of a reinforcing metal fitting and a wooden frame main body for explaining a second configuration example of the wooden frame of the present invention. It is a partially expanded schematic perspective view of a reinforcing metal fitting and a wooden frame body for explaining a third configuration example of the wooden frame. It is a schematic longitudinal cross-sectional view of the wooden frame explaining the 4th structural example of the wooden frame of this invention. It is a schematic longitudinal cross-sectional view of the wooden frame explaining the 5th structural example of the wooden frame of this invention. It is a schematic longitudinal cross-sectional view of the wooden frame explaining the 6th structural example of the wooden frame of this invention. It is a figure which shows the flow of the dimension setting method of the reinforcement metal fitting of the wooden frame suitably used in this invention. It is explanatory drawing of the wooden frame model explaining the dimension setting method of the said reinforcement metal fitting. It is explanatory drawing of the reinforcement metal fitting model explaining the dimension setting method of the said reinforcement metal fitting. It is explanatory drawing of the reinforcement metal fitting model explaining the dimension setting method of the said reinforcement metal fitting.

Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is a schematic longitudinal sectional view of a wooden frame A1 for explaining the configuration of a first structural example of the wooden frame of the present invention, and FIG. 2 shows the configuration of the first structural example of the wooden frame of the present invention. FIG. 3 is a partially enlarged schematic perspective view of a wooden frame A1 in which a reinforcing metal fitting 21 and an attachment portion of the frame main body 11 of the wooden frame A1 before being attached are enlarged for explanation. In the figure, 11 is a frame body, 21 in the figure is a reinforcing bracket, and the wooden frame A1 is provided with reinforcing brackets 21, 21, 21, 21 at the corners 12, 12, 12, 12 of the frame body 11, respectively. It is fixed. The wooden frame body 11 is a quadrangular wooden frame formed by horizontal frame members 13 and 13 and vertical frame members 14 and 14 made of wood. As shown in FIG. 2, a pair of horizontal frame members 13 and a vertical frame are provided. Reinforcing metal fittings 21 made of a metal plate material formed so as to be L-shaped on the side surface according to the angle of the corner portion 12 are fitted into the outer peripheral surface (frame body outer side surface) 15 of the corner portion 12 formed by the material 14. A flat plate-like recess (side L-shaped recess) 16 in which the side wall 16a forms an L-shape is formed so as to be possible between the horizontal frame member 13 and the vertical frame member 14. The reinforcing metal fitting 21 is made of a metal plate so as to be L-shaped in accordance with the angle of the corner 12 of the frame body 11, that is, the side 21a of the reinforcing metal 21 is L-shaped. Two metal plates are welded so that the middle portion in the vertical direction is bent in the vertical direction, or the side surface 21a of the reinforcing metal fitting 21 forms an L shape, and more specifically, a rectangular metal plate (in FIG. 2, in the arrow L _1, L ₂₎ the length of the bend direction central portion at an angle of 90 °, the two sheets of metal plate of the same shape is obtained by welding at an angle of 90 °. Further, screw members 3a, 3a, 3a, 3a, 3a of screw members (fixing members) 3, 3, 3, 3, 3, 3 for fitting and fixing in the recess 16 to the reinforcing metal fitting 21 are provided. 3a through which the insertion holes 21b, 21b, 21b, 21b, 21b, and 21b are opened at a predetermined interval along the length direction at the center portion in the width direction (arrow B in the drawing in FIG. 2). ing.

  The wooden frame of the present invention is a quadrangular wooden frame for a unit type building used when building a building such as a sunroom, a conservatory, or a greenhouse using a constituent unit, and the shape of the frame body is However, it is usually rectangular or square like the frame body 11 shown in FIG. 1, and therefore the angles of the four corners are usually 90 ° (right angle) like the frame body 11. However, it can also be trapezoidal according to the location where the frame is used. Here, the reinforcing metal fitting of the present invention is formed in a side L-shape according to the corner of the frame, but when it is adjusted to the corner of such a trapezoidal frame, the shape of the reinforcing metal is The side surface is substantially L-shaped, and the side surface is generally rectangular. Therefore, in the present invention, “L-shaped” includes all shapes recognized as L-shaped, such as substantially L-shaped, rectangular, and generally rectangular. As the wood that constitutes the wooden frame, the wood that has been used for wooden construction can be used. For example, Ipe (tabbayer), which is a Brazilian wood material such as sushi, chestnut, keyaki, etc. ] Or so-called hard wood such as red cedar can be used.

  The manufacturing method of the wooden frame is not particularly limited, and the wood of a predetermined size and shape is assembled so as to have the above-described configuration, and a screw member such as a screw screw, a bolt and nut like a conventional wooden frame. It can be manufactured by fixing each wood with a fixing means such as a nail. Moreover, the formation method (notch method) of the recessed part 16 is not particularly limited, and the wood used as the vertical frame member and the horizontal frame member is assembled as the frame body, and then the recessed part 16 having a predetermined shape is formed. You may cut out with an appropriate means, and after assembling a frame main body, you may cut out the recessed part 16 of a predetermined shape by an appropriate means.

As the metal plate material forming the reinforcing metal fitting of the present invention, a plate material (steel plate) made of stainless steel or iron can be suitably used. The size of the metal plate material can be appropriately selected according to the depth, width, height, etc. of the frame body. However, as will be described later, the length (FIG. 2) is obtained so that a desired reinforcing strength can be obtained. The arrows (L ₁ , L ₂ ), thickness (t _{1 in} FIG. 2), and width (arrow B in FIG. 2) are preferably set. The reinforcing metal fittings 21 shown in FIGS. 1 and 2 are formed by bending the longitudinal center of a rectangular metal plate according to the angle of the corner 12 of the frame body 11 or welding two metal plates. However, the reinforcing metal fitting of the present invention is not particularly limited in the bending position of the metal plate material or the length of each of the two metal plate materials to be welded. For example, L ₁ , L in FIG. ₂ may be bent so that one of the _two is longer than the other, or one of them may be a metal plate welded longer than the other, but as described later, when adjusting the reinforcing strength, Considering the ease of adjustment, the metal plate is bent in the middle in the length direction, or two metal plates having the same length (shape) are welded, and L ₁ and L _{2 in} FIG. It is more preferable to make them the same. The bending method is not particularly limited, and can be bent by means usually used when bending a metal plate material. Moreover, the welding method can also be welded by the means normally utilized when welding two metal plate materials. In the present invention, the means for forming the metal plate material so as to be L-shaped on the side is not limited to bending and welding as described above, and is formed on the L-shaped on the side by other appropriate means. You may form in.

  1 and 2 are fixed to the center of the frame main body 11 in the width direction, but one frame main body is connected to another frame main body without interposing a pillar (inter-column). In this case, if the bondability between one frame body and the other frame body is taken into account, the fixing position of the reinforcing bracket in the frame width direction between the one frame body and the other frame body is shifted. Is more preferable. For example, the position of the reinforcing bracket attached to one frame body is set to the right in the width direction of the frame (in FIG. 2, the right side in the drawing), and the position of the insertion hole of the reinforcing bracket attached to the other frame body is It is desirable to attach it to the left in the width direction (in FIG. 2, the left side in the drawing). In addition, when shifting the fixing position of the reinforcing bracket in the frame width direction between one frame main body and the other frame main body in this way, naturally, it is formed on the frame main body according to the fixing position of the reinforcing bracket. It is also necessary to shift the position of the recess to be made. The same applies to the rib-type reinforcing metal fittings to be described later and the recesses of the frame body to which such reinforcing metal parts are fixed.

  In the case of the present invention, each insertion hole 21b may be opened so that only the screw foot (thread cutting) portion 3a of the screw member 3 can be inserted. However, the screw head 3b of the screw member 3 is a reinforcing metal fitting. Opening so as to be embedded in 21 is more desirable because the surface of the reinforcing metal fitting 21 that is fitted and fixed in the recess 16 becomes flat. In the present invention, the number of insertion holes and fixing members is not particularly limited, and can be appropriately selected according to, for example, the length of the reinforcing metal fitting. The fixing member of the present invention is not limited to the screw member as long as the reinforcing metal fitting can be fixed to the wood, and for example, a bolt and nut can be used.

The shape of the reinforcing bracket of the present invention is such that the side surface 21a forms an L shape like the reinforcing bracket 21 shown in FIGS. 1 and 2, in other words, the longitudinal section along the length direction of the reinforcing bracket 21 is L. In order to form a letter shape, a flat metal plate material formed into a side L shape (flat type), that is, the end faces 21c, 21c in the length direction may be rectangular, As shown in FIG. 3 and FIG. 4, the L-shape along the length direction of the metal plate material is attached to the attachment surface of the reinforcement fitting to the wooden frame, in other words, the L-shaped inner surface formed by the reinforcement fitting. The one provided with the mold ridges, in other words, is formed in a shape in which the middle portion in the longitudinal direction is bent so that the flat plate-like metal plate has an L-shaped side surface. ) Complement with an L-shaped ridge (rib) extending inward along the length direction on the surface A fitting (ribbed type reinforcing brackets), the frame body may be a structure having a concave portion further corresponding to the L-shaped ridge in the recess. More specifically, like the reinforcing metal fitting 22 of the wooden frame A2 shown in FIG. 3, the metal plate is bent at the center in the length direction so as to be L-shaped on the side, and the inner surface thereof. (Mounting surface) By providing an L-shaped ridge 22b along the length (arrows L ₁ and L _{2 in} FIG. 3) in the center of the width (arrow B in FIG. 3) direction of the mounting surface 22a The end faces 22c, 22c in the length direction may each have an end face T-shape that is T-shaped. In this case, insertion holes 22d, 22d, 22d, 22d through which the screw foot portions 3a, 3a, 3a, 3a, 3a, 3a of the screw members (fixing members) 3, 3, 3, 3, 3, 3 are inserted, 22d and 22d are alternately arranged in the width direction (arrow B in FIG. 3) so that the position in the width direction (arrow B in FIG. 3) is shifted from the center portion so as to avoid the protruding position of the L-shaped protruding portion 22b. Close to the other side, and spaced apart at predetermined intervals along the length direction. And the shape of the recessed part formed in the frame main body 11 which attaches the reinforcement metal fitting 22 provided with the L-shaped protruding item | line 22b in this way is the vertical frame 14 which comprises the corner | angular part 12 of the frame main body 11, and horizontal L corresponding to the L-shaped ridge 22b at the center in the width direction in the recess (side L-shaped recess) 16 notched in a flat plate shape so that the side wall 16a is L-shaped toward the frame 13 A character-shaped recess 16b is formed, and each end surface (wall) 16c, 16c on the side of the horizontal frame member 13 and the vertical frame member 14 is formed with an end surface T-shaped recess 16 '. Become. In the case of the present invention, the L-shaped ridge is formed at a position shifted to one side of the width direction from the width direction central portion of the reinforcing metal fitting 22, and the L in the recess of the frame body is at that position. It may correspond to the position of the character-shaped concave stripe portion. In such a case, the shape of the both end faces 22c, 22c of the reinforcing metal fitting 22 is substantially T-shaped, and the shape of the corresponding recess is also the end face (wall) 16c on the side of the horizontal frame member 13 and the vertical frame member 14 side, 16c is also substantially T-shaped.

Further, like the reinforcing metal fitting 23 of the wooden frame A3 shown in FIG. 4, the metal plate material is formed so as to be L-shaped on the side surface, and the width (arrow B in FIG. 4) of the mounting surface 23a. By adopting a configuration in which an L-shaped ridge 23c along the length (arrows L ₁ and L _{2 in} FIG. 4) is provided on one side 23b (the left side in FIG. 4), Both ends 23d and 23d in the length direction of the reinforcing metal fitting 23 may be L-shaped, and may have a shape such that the end surface is L-shaped. In this case, the insertion holes 23e, 23e, 23e, 23e through which the screw foot portions 3a, 3a, 3a, 3a, 3a, 3a of the screw members (fixing members) 3, 3, 3, 3, 3, 3 are inserted, 23e and 23e are opened at a predetermined interval along the length direction at the central portion in the width (arrow B in FIG. 4) direction of the reinforcing metal fitting 23. And the shape of the recessed part formed in the frame main body 11 which attaches the reinforcement metal fitting 23 provided with the L-shaped protruding item | line part 23c in this way is the vertical frame 14 in which the frame main body 11 comprises the corner | angular part 12, and a horizontal frame. A further L is formed on one side in the width direction (left side in the figure in FIG. 4) in the concave portion (side surface L-shaped concave portion) 16 notched in a flat plate shape so that the side wall 16a is L-shaped toward the frame body 13. An L-shaped concave line portion 16d corresponding to the L-shaped convex line portion 23c is formed, and end faces L-walls 16c and 16c on the horizontal frame member 13 side and the vertical frame member 14 side form an L-shape. In this case, the L-shaped ridge portion 23c of the reinforcing metal fitting is projected on the other side in the width direction of the reinforcing metal fitting (the right side in FIG. 4). The projecting position may correspond to the position of the L-shaped recess 16d in the recess of the frame body.

The method of forming the L-shaped ridges 22b and 23c in the reinforcing brackets 22 and 23 is not particularly limited, and two metal pieces having the same shape that are welded so that the side surfaces of the reinforcing brackets 22 and 23 are L-shaped. The ridges are fixed in advance by appropriate means such as welding so that the L-shaped ridges are formed after welding at the center in the width direction or on one side in the width direction of the plate material. Is welded so as to be L-shaped, or a metal plate is bent into an L-shape, and then a metal plate is separately molded into an L-shape according to the shape of the ridges. It may be fixed by means, and after the metal plate material is bent so as to be L-shaped on the side surface, before being bent so that the L-shaped ridge is formed at the center in the width direction or one side in the width direction. The protrusions are fixed to the metal plate in advance by appropriate means such as welding, or are flat. Bend those ridges from the metal plate material is formed into a shape that protrudes may be used as a metal plate to be welded. In addition, the height (in FIG. 3, 4, arrow 1) and the width (in FIG. 3, 4, t ₂ ) of the L-shaped ridges 22b, 23c are appropriately selected in consideration of the applied load. Can do. Further, as described later, it is desirable that the setting is made so as to obtain a desired reinforcing strength.

  Furthermore, the wooden frame body of the present invention only needs to have a rectangular shape of the frame body. For example, the wooden frame body A4 shown in FIG. A rectangular frame main body 11 is formed by the frame members 14, 14, and a single wooden horizontal member 17 is fixed to the vertical frame members 14, 14 on the lower side in the height direction. Reinforcing metal fittings 21, 21, 21, and 21 may be attached to the respective corner portions 12, 12, 12, and 12 of the above. Further, as in a wooden frame A5 shown in FIG. 6, a rectangular frame body 11 is formed by two horizontal frame members 13 and 13 and two vertical frame members 14 and 14, and the height thereof is further increased. Two horizontal wooden members 17, 17 that are spaced apart by a predetermined distance in the direction are fixed to the vertical frame members 14, 14, and reinforcing metal fittings are attached to the corners 12, 12, 12, 12 of the frame body 11. 21, 21, 21, 21 may be attached. Further, as in a wooden frame A6 shown in FIG. 7, a rectangular frame body 11 is formed by two horizontal frame members 13 and 13 and two vertical frame members 14 and 14, and the height thereof is further increased. One wooden horizontal member 17 is fixed to the vertical frame members 14 and 14 on the lower side in the direction, and one wooden arch-shaped horizontal member 18 is fixed to the vertical frame members 14 and 14 on the upper side in the height direction. In addition, the corners 12, 12, 12, and 12 of the frame body 11 may be provided with reinforcing metal fittings 21, 21, 21, and 21. In the wooden frame A6 shown in FIG. Except not having fixed the base material 17, you may be the thing similar to the wooden frame A6 shown in FIG. Furthermore, in the wooden frames A4, A5, A6, the reinforcing metal fitting 22 shown in FIG. 3 or the reinforcing metal fitting 23 shown in FIG.

  As described above, the wooden frame body in which any of the reinforcing metal fittings 21, 22, and 23 is attached to the four corners of the frame body body is used as a constituent unit of the unit type building. It can be used as a wooden frame for roofs, a wooden frame for roofs, a wooden frame for doors, a wooden frame for windows, and the like. Here, the face material attached to the wooden frame of the present invention is not particularly limited, but the wooden frame of the present invention is more suitable when used as a constituent unit of a unit-type transparent material wall structure building. For this reason, for example, it is more preferable to attach a transparent plate as a face material for a frame used for a side surface or a roof of a unit type transparent material wall structure building. As the transparent plate material, it is possible to use glass plates, hard transparent resin plates, etc. used in sunrooms, conservatory, etc. More specifically, as the hard transparent resin plates, for example, polycarbonate plates, acrylic plates, etc. Is mentioned. Moreover, when using a glass plate, it may be a single glass or a double glass. Moreover, even when used as a structural unit of a unit-type transparent material wall structure building in this way, for example, a commercially available door or fitting is attached in the frame, or a window or fitting is attached in the frame. It is also suitable for use as a wooden frame for doors and a wooden frame for windows.

  A construction method of a unit type building using a wooden frame in which any one of the reinforcing metal fittings 21, 22, and 23 is attached to four corners of the frame body is a conventionally known wooden frame for unit type building. For example, if it is used as a wall wooden frame, prepare the required number of wall wooden frames after mounting the face material as described above or before mounting it on the base. One wall wooden frame on one side of the upright pillar material (inter-column) is fastened and fixed with a screw member such as a screw screw, a bolt nut, a nail, etc. using an insertion hole previously opened at a predetermined position, In addition, the wall wooden frame adjacent to one wall wooden frame is fastened and fixed, the adjacent wall wooden frames are joined, fixed to the base, and adjacent to the one surface of the column member. The next wall wooden frame is joined and fixed to the surface to be By going by concatenating wall wooden frame body suitable number to allow the wall structure, it is possible to construct a superior desired wall structure to the reinforcing strength by a simple field operation.

  According to the wooden frame of the present invention, when attaching a face material such as a glass plate, a hard transparent resin plate, etc. to the wooden frame, it becomes difficult to attach due to distortion, a framework in field construction, attached to the base, When assembling, distortion does not occur and it becomes difficult to assemble, and when used as a wall member etc., it not only has excellent strength, but for example, a transparent plate wall is attached, and a transparent material wall such as a solarium When used in a structural building, it is excellent in appearance as a structural member (structural unit) of a building that forms a comfortable living space.

The dimensions of the reinforcing metal fittings such as the wooden frame bodies A1, A2, and A3 can be more suitably set by a reinforcing metal fitting dimension setting method described in detail below. Hereinafter, the dimension setting method suitable for the reinforcing member for the wooden frame of the present invention will be described in more detail with reference to FIGS. FIG. 8 is a view for explaining a flow of a dimension setting method suitable for the reinforcing member of the wooden frame of the present invention, and FIG. 9 shows a state in which the wooden frame model A is fixed to the bases B ₁ and B _2. It is explanatory drawing (schematic front view) of the wooden frame model A. FIG. 10 is an explanatory view of the reinforcing bracket model in which the reinforcing bracket model 20 is viewed from the side, and the L-shaped protruding portion is omitted for the ribbed type having the L-shaped protruding portion. It is a schematic side view), and shows the shape of one end surface 21c in the length direction of a flat type in a quadrilateral dotted line. In addition, each arrow a in a figure has shown the driving position of a screw member. Moreover, FIG. 11 shows the shape of the length direction one end surfaces 22c and 23d of the ribbed type provided with the L-shaped ridge.

As shown in FIG. 8, the dimension setting method suitable for the reinforcing member for the wooden frame of the present invention includes a step 100 for determining the building model of the unit type building, a step 101 for calculating the total weight of the building model, Step 102 for selecting the seismic intensity at the time of reinforcement and calculating the horizontal force during earthquake at the seismic intensity, and step 103 for calculating the horizontal force H (see FIG. 9) acting on one frame of the wooden frame from the horizontal force during earthquake Step 104 for determining the frame model A (see FIG. 9) of the wooden frame, the maximum acting sectional force M _max (see FIG. 9) generated at the corner II (see FIG. 9) of the frame model A (see FIG. 9) at the horizontal force H. Step 105 for calculating (see FIG. 10), step 106 for determining the reinforcing bracket model 20 (see FIG. 10) for which the shape and material are selected, and the allowable bending stress level and the maximum action of the material of the reinforcing bracket model 20 (see FIG. 10). Refusal And a force M _max, step 107 to calculate the section modulus of the reinforcing bracket models required to withstand the maximum working member forces M _max, as shown in FIG. 10, the flat type end face 21c of the metal fitting model 20 is rectangular In this case, the step 108 of setting the width B and the thickness t ₁ of the metal plate material of the reinforcing metal fitting model 20 so as to have the size of the cross section corresponding to the calculated section modulus, as shown in FIG. 20 is further provided with an L-shaped ridge, and in the case of a ribbed type such that the end face 22c is substantially T-shaped, or the end face 23d is substantially L-shaped, it has a cross-sectional size that is a calculated section modulus. As described above, the step 109 for setting the width B, the thickness t ₁ of the metal plate member of the reinforcing metal fitting model 20, the width t ₂ of the L-shaped ridge and the height l is included.

Here, the building model in step 100 assumes a finished product as a building so that the total weight of the building model in step 101 can be calculated, and the size, shape, material, The configuration (the size of the frame body, the number used, the face material fitted into the frame body, etc.) is assumed. In step 101, the total weight is calculated based on the data of the building model. In step 102, the seismic intensity at the time of reinforcement (for example, seismic intensity 5 lower) is selected, and the seismic horizontal force at that seismic intensity is added to the fixed load plus the loading load according to Article 88 of the Building Standards Law Enforcement Ordinance. Obtained by multiplying the layer shear force coefficient. Then, in step 103, based on the building model determined in step 100, the horizontal force H (see FIG. 9) acting on one frame of the wooden frame of the building model from the earthquake horizontal force calculated in step 102 is obtained. Calculate. That is, the horizontal force at the time of the earthquake calculated in step 102 is set as the horizontal force at the time of the whole earthquake, and this is divided by the number of shared frames, that is, (horizontal force at the time of earthquake divided by the number of shared frames) Seeking power. In step 104, a frame model is determined. Like the frame model A shown in FIG. 9, the frame model A has a frame shape, nodes I, II, III, VI, V, a pin fulcrum I, a roller fulcrum. It is preferable to model the separation distance between V and the roller fulcrum V and one node IV adjacent thereto, and further model the material of the wood constituting the frame and the dimensions of the wood. In step 105, based on the wooden frame model determined in step 104, calculation is made in step 103 from the Young's modulus E of wood, the cross-sectional area A of the wood member, the secondary moment I of the cross-section of the wood, the separation distance of the roller fulcrum, etc. The maximum action sectional force M _max generated at the corner (node II) of the frame model A at the horizontal force H is calculated by computer calculation using a commercially available structural calculation program, for example. In step 106, as shown in FIG. 10, the metal plate is formed into a side L-shape, the end surface 21c is a flat type having a rectangular shape, and the metal plate is formed into a side L-shape. Shape and material, such as a ribbed type having a strip and having an end surface 22c that is substantially T-shaped (with a rib at the center in the width direction) or an end surface 23d that is substantially L-shaped (with a rib at one end in the width direction). The reinforcing metal fitting model 20 having been selected is determined. Then, in step 107, the allowable bending and stress intensity sigma _a determined by the material of the reinforcing bracket model determined in step 106, the maximum working member forces M _max was calculated in step 105, withstand said maximum working member forces M _max The section modulus of the reinforcing bracket model required for the calculation is calculated. That is, assuming that the stress of the reinforcing bracket is σ and the section modulus of the reinforcing bracket model is Z, σ = M _max / Z, and σ = M _max / Z ≦ σ _a in order to withstand the maximum acting sectional force M _max. From this, it is possible to calculate the section modulus Z of the reinforcing metal fitting model necessary to withstand the maximum acting section force _Mmax . Note that the allowable bending stress σ _a is, for example, allowable bending stress σ _a = 2400 kg / cm ² if the metal plate is an iron plate. If the reinforcing bracket model determined in step 106 is a flat type, the process proceeds to step 108, and the metal plate material of the reinforcing bracket model 20 has a cross-sectional size that is the section modulus Z calculated in step 107. setting the width B and the thickness _{t 1.} In this case, the width B and the thickness t ₁ are obtained from a section coefficient Z = B (width) × t ₁ (thickness) ² ÷ 6, which is a calculation formula when the section is rectangular. On the other hand, if the reinforcing bracket model determined in step 106 is a ribbed type, the process proceeds to step 109 and the metal plate material of the reinforcing bracket model 20 so as to have a cross-sectional size corresponding to the section modulus Z calculated in step 107. width B, thickness t ₁ and L-shaped width t ₂ of the convex portion of _the, to set the height l. In this case, the width B and thickness t _{1 of} the metal plate material, the width t ₂ and the height l of the L-shaped ridge are 1 (height) + t ₁ (thickness) = h ₁ as will be described later. (Total height), factor e ₁ regarding the position of the neutral axis in the total height (h ₁ ) direction, h ₁ (total height), width t ₂ of the L-shaped ridge _, metal plate material The section modulus Z can be obtained from a relational expression (formula (1) and formula (2) to be described later) between the width B and the thickness t ₁ of the metal plate material.

  In addition, this invention is not limited to the said structure, A various change can be made in the range which does not deviate from the summary of this invention.

  Hereinafter, although an example is shown and a dimension setting method of a reinforcement metal fitting is explained more concretely, the present invention is not limited to the following example.

The following hypothetical model was assumed as an example in order to more specifically explain the method of setting the dimensions of the reinforcing bracket. Assuming that a standard type conservatory with a size of 2 tsubo is constructed as a building model, the size of the conservatory is about 1.8 m in depth (protruding width) (W) and about 3.6 m in front width (L). It is. Assuming that the total weight calculated for this building model is 0.6 (t), the horizontal force during an earthquake with a seismic intensity of less than 5 calculated from the formula described in the Building Standards Act is 0.12 ( t). The wooden frame model A to be reinforced (see FIG. 9) was assumed to have a height (arrow h _{2 in the} figure) of 2100 mm and a lateral width (arrow w in the figure) of 850 mm. In addition, as a fulcrum condition for the building, the distance between the roller fulcrum V and the node IV was assumed to be about 75 mm. If the material of the wood constituting the wooden frame model A is red cedar, the cross-sectional performance is that the cross-sectional area A = 0.038 × 0.089 = 3.382 if the cross section of the wood is 38 mm long and 89 mm wide. × ¹⁰ -3 ^(m 2), the moment of inertia of ^{I = (0.038 3 × 0.089)} ÷ 12 = 4.06 × 10 -7 (m 4). A horizontal force H is applied to the node III of the wooden frame model A as indicated by an arrow H in the figure. There are four wooden frames used to construct the front wall of the building model. When an earthquake with a seismic intensity of 5 or less occurs, the horizontal force H applied per one frame of the conservatory is calculated as the horizontal force (0. 12 (t)), the number of frames that share this is 4 frames, and the horizontal force H per frame is 0.03 (t) = 30 (kg), which occurs at the corners of the frame. When the maximum moment M _max is calculated by a commercially available structural calculation program, the maximum moment M _max applied to the corner of the frame is M _max = 0.559 × 0.03 = 0.016777 (t · m).

When the material of the reinforcing metal fitting model 20 shown in FIG. 10 is iron, the allowable stress σ _a of iron is 2400 (kg · cm ² ), and σ = M _max ÷ Z ≦ 2400 (kg · cm ² ). From this equation, it is calculated that the section modulus Z requires Z ≧ 0.69875 (cm ³ ). When the reinforcing metal fitting model 20 is a flat type, the section modulus Z is obtained from a calculation formula when the section is rectangular: Z = B (width) × t ₁ (thickness) ² ÷ 6. Therefore, in order to withstand an earthquake with a seismic intensity of less than 5 (reinforcing so that the corners of the frame are not distorted), when the thickness t ₁ of the reinforcing bracket model is set to 8 mm, the necessary width B is Z Since B = t ₁ ² ÷ 6, B≈7 cm. When the reinforcing metal fitting model is a ribbed type, the section modulus Z can be calculated by adding a factor related to the position of the neutral axis regardless of whether the end face is substantially T-shaped or the end face is substantially L-shaped. That is, as shown in FIG. 11, l (height) + t ₁ (thickness) = h ₁ (overall height), and the neutral axis C is the surface of the metal plate (the surface opposite to the mounting surface, FIG. 11). , E ₁ from the upper end surface), and e ₂ from the end surface (lower end surface in FIG. 11) of the L-shaped ridge, e ₁ , h ₁ (overall height), L-shaped The relationship between the width t _{2 of the} ridge, the width B of the metal plate, and the thickness t ₁ of the metal plate is expressed by the following formula (1), and the section coefficient Z is a calculation formula based on the following formula (2). When the thickness t ₁ of the metal plate material and the width t ₂ of the L-shaped protrusion are set to 8 mm, respectively, the necessary width B is about 3 cm, and the height of the L-shaped protrusion is high. Each l is about 1.2 cm.

Turning now seeking resistance of the screw member for attaching the size installed reinforcement fitting model 20 as described above (pull-out force), the reinforcement bracket model 10 is a length _{L 1} is 300mm, the length _{L 2} is 300mm When the side surface is L-shaped, if a screw member having a diameter of 5.1 mm and a length of 25 mm is driven into the reinforcing bracket model 20 as a screw member, each of the L-shaped end portions is 30 mm away from each other (in FIG. When the pulling force exerted per one screw driven into the right end and lower end) and T _1, a T _{1 =} 62 (kg) from commercially available structural calculation program, allowable pulling force T _a the architectural Institute of Japan "tree calculation basis・ If calculated according to the same explanation, T _a = 72.5 kg / book. Therefore, it was confirmed that T ₁ <T _{a and} the resistance (pull-out force) of the screw member to which the reinforcing bracket model dimensioned as described above is attached. In the case of wood screws, the allowable pulling force varies depending on the specific gravity of the wood, the screwing depth of the screw portion, and the diameter of the wood screw.

  The wooden frame attached with the reinforcing brackets whose dimensions are set based on the dimensions of each part of the reinforcing bracket model set in this way has effective rigidity (strength) against the shearing force at the time of earthquake, and is a wall type It becomes possible to make it comparable to the structure.

A Frame model A1 to A6 Wooden frame B Metal plate width l L-shaped ridge height t ₁ Metal plate thickness t ₂ L-shaped ridge width 11 Frame body 12 Corner Part 15 Outer peripheral surface 16, 16 ', 16 "Recess 16b, 16d Recess 20 Reinforcing bracket model 21, 22, 23 Reinforcing bracket 21a Side surface 22a, 23a Mounting surface 22b, 23c L-shaped ridge

Claims (5)

A quadrangular wooden frame for a unit-type building used when building a building such as a sunroom, a conservatory, or a greenhouse using a constituent unit, and on the outer peripheral surface of each corner of the frame, Reinforcing metal fittings made of a metal plate formed so as to be L-shaped on the side surface according to the angle of the corners are provided, respectively, and the fixing members are fitted in the respective recessed portions with the reinforcing metal fittings fitted therein. A wooden frame for unit type buildings characterized by being attached. The reinforcing metal fitting further includes an L-shaped ridge along the length direction of the metal plate material on the attachment surface to the wooden frame, and the wooden frame is further provided in the recess. The wooden frame for a unit type building according to claim 1, further comprising a concave portion corresponding to the convex portion of the mold. The wooden frame for a unit type building according to claim 1 or 2, wherein the unit type building is a unit type transparent material wall structure building, and the wooden frame is a member to which a transparent plate is attached as a face material. Determine the building model of the unit type building, calculate the total weight of the building model, select the seismic intensity at the time of reinforcement, calculate the seismic horizontal force at the seismic intensity, The horizontal force H acting on one frame of the wooden frame is calculated from the force, then the frame model of the wooden frame is determined, and the maximum acting sectional force generated at the corner of the frame model at the horizontal force H M _max is calculated, and a reinforcing bracket model in which the shape and material are selected is determined, and the maximum acting sectional force M is determined from the allowable bending stress degree of the material of the reinforcing bracket model and the maximum acting sectional force M _max. Calculate the section modulus of the reinforcing bracket model necessary to withstand _max , and the width and thickness of the metal plate material of the reinforcing bracket model, or the metal The width and thickness of the plate material and the width of the L-shaped ridge Been unitary building Wood frame according to the height was set to claim 1, 2 or 3. The frame model includes a frame shape of the frame, a node position, a pin fulcrum, a roller fulcrum, a separation distance between the roller fulcrum and one node adjacent to the frame, a material of the wood constituting the frame, The wooden frame for a unit type building according to claim 4, wherein the dimensions are modeled.

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