JP5658572B2 - Seismic structures and earthquake-resistant houses - Google Patents

Description

  The present invention relates to an earthquake-resistant structure and a earthquake-resistant house that reinforce a wall in order to improve the earthquake resistance of a house that has already been completed by, for example, a frame construction method.

  Conventionally, in consideration of earthquake resistance, as shown in FIG. 23, a bracing 101 or an inter-column 102 is provided between the columns 100 or 100, or a horizontal beam 103 and a horizontal frame provided in parallel to the lower side thereof. A spacer 105 is provided between the material 104.

  By the way, in recent years, a house having more excellent seismic performance has been proposed (see, for example, Patent Document 1). This proposal is a construction method in which the house and the base part are unfixed and the house is slidably supported by the base part, and such a structure can be easily incorporated when a new house is constructed.

JP 08-218677 A

  However, in the case of the above proposal, since it is necessary to perform processing between the house and the lower foundation part, it is not impossible to incorporate the earthquake-resistant structure into the existing house, but it is easy. Not that.

  The present invention has been made in order to solve such problems of the prior art, and an earthquake-resistant structure that can incorporate an earthquake-resistant structure into an existing house relatively easily and has excellent earthquake resistance, and The purpose is to provide earthquake-resistant houses.

  The seismic structure of the present invention is a seismic structure that reinforces a wall in order to improve the seismic resistance of a house that has already been completed by a frame construction method, and includes two adjacent pillars, a lower horizontal beam, and an upper side. A rectangular frame composed of a horizontal beam and having an empty space inside, and a rectangular shape that is placed on the lower horizontal beam and sandwiched between the two pillars inside the rectangular frame A plurality of square bars arranged side by side along the lower horizontal beam and adjacent ones of the square bars are connected to each other by fastening means; Fixing means for fixing to each, a concave groove into which the lower end portion of the reinforcing wall enters, and a metal lower reinforcing member whose both ends are fixed to the two pillars respectively, and an upper end portion of the reinforcing wall enter Gold with concave grooves, both ends fixed to the two pillars, respectively Characterized by comprising manufacturing of an upper reinforcing member.

  The earthquake-resistant structure according to claim 2 of the present invention is the earthquake-resistant structure according to claim 1, wherein the lower reinforcing member is fixed to the lower horizontal beam.

  The earthquake resistant structure according to claim 3 of the present invention is the earthquake resistant structure according to claim 1 or 2, wherein the upper reinforcing member is the upper horizontal beam or the lower side of the two adjacent columns. It is fixed to a horizontal beam separately provided between them.

  The seismic structure according to claim 4 of the present invention is the earthquake resistant structure according to any one of claims 1 to 3, wherein each lower end of each of the plurality of square members constituting the reinforcing wall with respect to the lower reinforcing member. And the upper ends of each of the square members constituting the reinforcing wall are fixed to the upper reinforcing member.

  The earthquake-resistant structure according to claim 5 of the present invention is the earthquake-resistant structure according to any one of claims 1 to 4, wherein each of one side surface of the lower reinforcing member and one side surface of the upper reinforcing member is An opening through which an end portion of the square member is inserted is provided.

  An earthquake-resistant structure according to claim 6 of the present invention is the earthquake-resistant structure according to any one of claims 1 to 5, wherein the earthquake-resistant structure is provided between adjacent ones of the square members, and between the adjacent square members, It further comprises shearing force reducing means for reducing the shearing force generated along the longitudinal direction.

  The earthquake-resistant structure according to claim 7 of the present invention is the earthquake-resistant structure according to claim 6, wherein the shearing force reducing means has integral portions on both sides opposite to each other of adjacent square members. It is a metal fitting.

  The earthquake-resistant structure according to claim 8 of the present invention is the earthquake-resistant structure according to claim 7, wherein the metal fittings are provided with a pair of biting portions on opposite sides of each of the connecting pieces, respectively. It is an I-shaped metal fitting.

The earthquake-resistant structure according to claim 9 of the present invention is the earthquake-resistant structure according to claim 6 , wherein the shearing force reducing means is opposed to the concave groove provided in a state facing both adjacent square members. It has a fitting pin provided inside the concave groove.

  The earthquake resistant structure according to claim 10 of the present invention is the earthquake resistant structure according to claim 9, wherein the concave groove is a semicircular groove and the fitting pin is a cylindrical pin. To do.

  An earthquake-resistant house according to claim 11 of the present invention is one in which the earthquake-resistant structure according to any one of claims 1 to 10 is incorporated.

  In the case of the seismic structure according to the present invention, the reinforcing wall provided inside the rectangular frame composed of the two adjacent columns erected, the upper horizontal beam and the lower horizontal beam is provided on the lower horizontal beam. A plurality of square bars are arranged side by side and adjacent ones of the square bars are connected by fastening means, and the reinforcing wall is placed on the lower horizontal beam and sandwiched between two pillars. Since it is fitted and fixed in the state, at least three sides of the rectangular frame are supported by the three sides of the rectangular reinforcing wall. Therefore, it can be set as the earthquake-resistant structure which suppresses a deformation | transformation of a rectangular frame, and an earthquake-resistant structure can be incorporated into an existing house comparatively easily. In addition, since the lower end portion of the reinforcing wall is held by the lower metal reinforcing member and the upper end portion of the reinforcing wall is held by the upper metallic reinforcing member, the remaining one side of the reinforcing wall is also a rectangular frame. It is supported, that is, the four sides of the reinforcing wall are supported by the rectangular frame, and can be made excellent in earthquake resistance.

  In the case of the invention according to claim 2, since the lower reinforcing member that holds the lower end portion of the reinforcing wall is fixed to the lower horizontal beam constituting the rectangular frame, the earthquake resistance can be further improved.

  In the case of the invention according to claim 3, the upper reinforcing member that holds the upper end portion of the reinforcing wall is fixed to the upper horizontal beam constituting the rectangular frame or a horizontal beam separately provided below the upper horizontal beam. Can be improved.

  In the case of the invention according to claim 4, each lower end portion of the square member constituting the reinforcing wall is fixed to the lower reinforcing member, and each upper end portion of the square member constituting the reinforcing wall is fixed to the upper reinforcing member. Therefore, the earthquake resistance can be further improved.

  In the case of the invention according to claim 5, the openings are provided on one side surface of the lower reinforcing member and one side surface of the upper reinforcing member, respectively, so that the square member can be put inside the rectangular frame from the opening. it can. Moreover, since the opening is provided only on one side surface, it is possible to suppress a decrease in strength of both the reinforcing members themselves.

  In the case of the invention according to claim 6, even if there is a possibility that a shearing force may be generated along the longitudinal direction of the square bars between the adjacent square bars due to the earthquake, the shear force provided between the adjacent square bars. Since the reducing means reduces the shear force, the earthquake resistance can be further improved.

  In the case of the invention according to claim 7, the biting portion on one side of the integral metal fitting constituting the shearing force reducing means is bitten into one of the adjacent square members, and the biting portion on the other side is bitten into the other side. By biting into the square bar, the shearing force generated between the adjacent square bars is reduced.

  In the case of the invention according to claim 8, the biting portion on one side is aligned with one of the adjacent square members across the connecting piece of the roughly I-shaped metal fitting, and the connecting piece of the metal fitting is driven in from the other side. The other square member is cut into the biting portion on the other side with the connecting piece of the metal fitting interposed therebetween, so that a substantially I-shaped metal fitting can be easily disposed between adjacent square members.

  In the case of the invention according to claim 9, since the fitting pin fits inside the concave groove provided in a state facing both the adjacent square members, the fitting supported by one concave groove of the adjacent square member. The mating pin fits into the concave groove of the other square bar, so that the mating pin is placed so as to straddle the adjacent square bars, and the adjacent square bars are joined together, so the shearing force generated between the adjacent square bars Will be reduced.

  In the case of the invention according to claim 10, after adjacent square members are connected by the fastening means, a circular hole is opened between adjacent square members by a drill or the like, and a cylindrical pin is fitted into the hole. Thus, the shearing force reducing means can be easily provided.

  In the case of the earthquake-resistant house of the present invention, the same effect as the above-described earthquake-resistant structure can be obtained.

It is a front view which shows the earthquake-resistant structure which concerns on 1st Embodiment of this invention. It is a perspective view which shows the house of the state before incorporating the earthquake-resistant structure of FIG. It is a front view which shows the earthquake-resistant structure provided in a part (A part of FIG. 2) of a house. It is an external appearance perspective view which shows the general | schematic I-shaped metal fitting which is one of the shearing force reduction means used in this invention. It is attachment explanatory drawing of the metal fitting shown in FIG. It is an external appearance perspective view which shows the fitting pin which is another example of the shearing force reduction means used in this invention. It is explanatory drawing of the hole which penetrates the fitting pin of FIG. It is explanatory drawing of the manufacturing process of the earthquake-resistant structure shown in FIG. It is explanatory drawing of the manufacturing process of the earthquake-resistant structure shown in FIG. It is explanatory drawing of the manufacturing process of the earthquake-resistant structure shown in FIG. It is explanatory drawing of the manufacturing process of the earthquake-resistant structure shown in FIG. It is explanatory drawing of the manufacturing process of the earthquake-resistant structure shown in FIG. It is explanatory drawing of the manufacturing process of the earthquake-resistant structure shown in FIG. It is explanatory drawing of the generation | occurrence | production mechanism of a shear force. It is a front view which shows the earthquake-resistant structure which concerns on 2nd Embodiment of this invention. It is a front view which abbreviate | omits and shows the height direction intermediate part of the earthquake-resistant structure of FIG. It is an external appearance perspective view which shows a lower side reinforcement member (or upper side reinforcement member). It is a figure which shows a lower side reinforcement member (or upper side reinforcement member), (a) is a front view, (b) is a left view, (c) is a right view, (d) is a bottom view, (e) is a back view FIG. It is attachment explanatory drawing of the square with respect to a lower side reinforcement member and an upper side reinforcement member. (A) And (b) is a figure which shows the other example of the metal fitting applied to this invention together. It is a figure which shows the other structural example of a reinforcement wall. It is a front view which shows the earthquake-resistant structure which concerns on other embodiment of this invention. It is a front view which shows the conventional earthquake-resistant structure.

  Embodiments of the present invention will be specifically described below.

(First embodiment)
FIG. 1 is a front view showing an earthquake-resistant structure according to the first embodiment of the present invention, and FIG. 2 is a perspective view showing a house in a state before incorporating the earthquake-resistant structure, and FIGS. 3 and 8 to FIG. 13 is explanatory drawing of the process at the time of providing an earthquake-resistant structure in the wall (A part of FIG. 2) of the house.

  The seismic structure 1 is provided on two orthogonal wall portions 3 and 3 at the four corners of the room 2, the pillar 4 disposed at the four corners of the room 2, and the next to the pillar 4 (right in FIG. 3). Next to the rectangular frame 10, which is composed of the adjacent column 5, the lower horizontal beam 6 having both ends connected to the columns 4, 5, and the upper horizontal beam 7 having both ends connected to the columns 4, 4. Is provided. The lower horizontal beam 6 is, for example, a lower horizontal beam than a floor surface 11 attached via a joist (not shown) on a base 9 disposed horizontally on a foundation 8 generally made of concrete. 6 is provided horizontally with the upper surface of 6 being the upper side. The upper horizontal beam 7 is horizontally arranged with the whole thereof above the ceiling 12. The lower horizontal beam 6 may have its upper surface disposed below the floor surface 11, and the upper horizontal beam 7 may have its lower surface disposed below the ceiling 12.

  The seismic structure 1 according to the present embodiment is configured by fitting and fixing the rectangular reinforcing wall 20 having a shorter height than the rectangular frame 10 in the empty space C inside the rectangular frame 10. ing. The wall 3 provided with the earthquake-resistant structure 1 faces the indoor and outdoor sides, and the rectangular frame 10 removes the wall member on the indoor side, or in the case of the earth wall, the earth wall itself is removed. The reinforcing wall 20 is fitted and fixed to the rectangular frame 10 from the indoor side. The reinforcing wall 20 is excellent in mountability when provided at a location lower than the ceiling 12 of the rectangular frame 10, but may be mounted such that the upper portion of the reinforcing wall 20 is higher than the ceiling 12. In FIG. 2, the outdoor wall member is omitted.

  As shown in FIG. 3, the reinforcing wall 20 includes a plurality of, in the illustrated example, nine square members 13 provided in parallel with the columns 4 and 5 between the columns 4 and 5, a number of coach bolts 14, It has three through bolts 15 for clamping, a large number of metal fittings 16 and a large number of fitting pins 17 as shearing force reducing means, and square members 13 at both ends are fixed to columns 4 and 5, respectively. Has been. The number of the through bolts 15 is not limited to three, and may be one or two or four or more.

  FIG. 4 is an external perspective view showing the metal fitting 16. The metal fitting 16 has a substantially I-shape in which a pair of biting portions 16a and 16a located on opposite sides are provided at both ends of the connecting piece 16b. The tip side of each biting portion 16a has a shape that becomes sharper as it approaches the tip, in this example, it is formed so that the thickness is thin and the width is narrow, and is configured to facilitate biting. In addition, the thickness dimension which is a direction orthogonal to the direction in which the biting part 16a protrudes is substantially constant as a whole except for the tip part of the biting part 16a. In addition, since the metal fitting 16 can utilize the connection member etc. which are indicated in Drawing 3 of JP, 2008-202277, A "method of construction of a high-rigidity face, and a connection member used for construction of a high-rigidity face, '' etc. Although the case where it is utilized is shown as an example in the figure, any hardware or the like having the same function may be used.

  For example, as shown in FIG. 5, the metal fitting 16 is attached to the square member 13 or the column 4 (or 5) by using the two biting portions 16a (16c) on one side (for example, the left side in FIG. 4) across the connecting piece 16b. Then, the square bar 13 disposed adjacent to the square bar 13 or the pillar 4 (or 5) is struck in the direction of the arrow, and the other side (for example, the right side of FIG. 4) ) Of the two biting portions 16a (16d) into the corner material 13 being beaten.

  FIG. 6 is an external perspective view showing the fitting pin. The fitting pin 17 is another member constituting the shearing force reducing means, and is formed in a solid cylindrical shape in the illustrated example. It may be a hollow cylinder. As the material of the fitting pin 17, for example, wood, resin, metal or the like is used.

  The fitting pin 17 is attached as follows. That is, after the adjacent square members 13 are connected to each other, a circular hole 18 (shown by a two-dot chain line) is opened by, for example, a drill so as to straddle each of the two adjacent square members 13 as shown in FIG. The fitting pin 17 is fitted into the hole 18. That is, this fitting pin 17 is used like a dowel for joining together wood, for example.

  Next, how the reinforcing wall 20 is fitted and fixed will be described with reference to FIGS. 3 and 8 to 13. Here, when specifying the position with respect to the nine square bars 13, the first square bar 13-1, the second square bar 13-2, the third square bar 13-3, They are referred to as a square member 13-4, a fifth member 13-5, a sixth member 13-6, a seventh member 13-7, an eighth member 13-8, and a ninth member 13-9. The three fourth square members 13-4, the fifth square member 13-5, and the sixth square member 13-6 constitute a central square member sandwiched by the through bolts 15.

  Here, the coach bolt 14 is used as a fixing means when the pillar 4 (5) and the square member 13 are connected, and is used as a fastening means when connecting the square members 13 to each other.

  First, a lower horizontal beam 6, an upper horizontal beam 7, nine square bars 13, a coach bolt 14, a through bolt 15, a metal fitting 16 and a fitting pin 17 are prepared.

  And as shown in FIG. 8, the concave engaging part 6a is formed in the surface used as the upper surface of the lower horizontal beam 6. As shown in FIG. In addition, a convex engaged portion 13 a that engages with the engaging portion 6 a is formed on a surface that becomes a lower end of each square member 13, and three fourth square members that are arranged in the central portion of the reinforcing wall 20. Three concave grooves 13b for avoiding the through bolts 15 are formed on one surface of the 13-4, the fifth square member 13-5, and the sixth square member 13-6 (one concave groove 13b is shown in FIG. 8). Represent). Further, a step portion 13e for attaching the upper frame 21 is formed on the surface corresponding to the concave groove 13b in all the square bars 13. Then, as shown in FIG. 9, a recess 13c and a bolt insertion hole 13d are formed in the third square member 13-3 and the seventh square member 13-7 arranged third from the left and third from the right. Through bolts 15 are attached to the second square members 13-3 and 13-7 through through holes 13f provided in the square member 13-7. A hexagonal head 15a of the through bolt 15 and a nut 15b are disposed inside the recess 13c.

When this preparation is completed, the lower horizontal beam 6 is provided above the floor 11 as shown in FIG. The lower horizontal beam 6 is fixed to the columns 4 and 5 at both ends in the longitudinal direction.

  Next, the biting portion 16c on one side of the metal fitting 16 is driven into a predetermined plurality of locations (eight locations in the illustrated example) that are opposite to each other and have different heights with respect to the columns 4 and 5; The first square member 13-1 and the first square member 13-9 that are the first from the left and the first from the right are placed on the lower horizontal beam 6 in the vertical direction, and the first square member 13-1 is directed to the column 4 side. The other biting portion 16d of the metal fitting 16 is struck into the first square member 13-1 being struck, and the ninth square member 13-9 is struck toward the column 5 to eat the metal 16 The insert portion 16d is made to bite into the beating ninth square member 13-9. Thereafter, the square members 13-1 and 13-9 are fixed to the corresponding columns 4 and 5 using a plurality of (four in the illustrated example) coach bolts 14, respectively. At this time, the first square member 13-1, the ninth square member 13-9, and the lower horizontal beam 6 keep the engaging portion 6a engaged with the engaged portion 13a. The biting portion 16d is bitten into the square bar 13 and the fixing using the coach bolt 14 is continuously performed on the first square bar 13-1, and before and after this, the ninth square bar 13- 9 may be performed continuously.

  Subsequently, the biting portion 16c of the metal fitting 16 is bitten into the predetermined plurality of locations (eight locations in the illustrated example) on the opposite side of the pillar 4 in the first square member 13-1 and having different heights as before. Attach the bracket 16. Before and after this, the biting portion of the metal fitting 16 is the same as before in a predetermined plurality of locations (eight locations in the illustrated example) on the opposite side of the pillar 5 in the ninth square member 13-9 and having different heights. The metal fitting 16 is attached by biting 16c.

  Next, as shown in FIG. 11, the second square member 13-2 and the eighth square member 13-8, which are second from the left and second from the right, are placed on the lower horizontal beam 6 in the vertical direction, The square bar 13-2 is struck toward the first square bar 13-1 to cause the biting portion 16d of the metal fitting 16 to bite into the hitting square bar 13-2, and the eighth square bar 13-8 is moved to the ninth square bar. By striking toward the 13-9 side, the biting portion 16d of the metal fitting 16 is caused to bite into the beating eighth square member 13-8. Thereafter, the square bars 13-2 and 13-8 are fixed to the corresponding first square bar 13-1 and ninth square bar 13-9 using a plurality of (four in the illustrated example) coach bolts 14, respectively. At this time, the second square member 13-2, the eighth square member 13-8, and the lower horizontal beam 6 keep the engaging portion 6a engaged with the engaged portion 13a. Note that the biting portion 16d bites into the square bar 13 and the fixing using the coach bolt 14 is performed continuously on the second square bar 13-2 as before, and before and after this, You may make it perform continuously with respect to the octagonal material 13-8.

  Subsequently, the biting portion 16c of the metal fitting 16 is bitten into the predetermined plural places (eight places in the illustrated example) on the opposite side of the square piece 13-1 in the square piece 13-2 and having different heights as before. Attach the bracket 16. Before and after this, the biting portion of the metal fitting 16 is the same as before in the predetermined plural places (eight places in the illustrated example) on the opposite side to the square 13-9 in the square 13-8 and having different heights. The metal fitting 16 is attached by biting 16c.

  Next, as shown in FIG. 12, the third square member 13-3 and the seventh square member 13-7 that are third from the left and third from the right to which the through bolts 15 are attached are vertically erected, and the lower horizontal It is placed on the beam 6, the third square member 13-3 is struck toward the second square member 13-2, and the biting portion 16d of the metal fitting 16 is bitten into the striking square member 13-3. The square bar 13-7 is struck toward the eighth square bar 13-8 to cause the biting portion 16d of the metal fitting 16 to bite into the striated square bar 13-7. Thereafter, the square bars 13-3 and 13-7 are fixed to the corresponding second square bars 13-2 and eighth square bars 13-8 using a plurality of (four in the illustrated example) coach bolts 14, respectively. At this time, the third square member 13-3, the seventh square member 13-7, and the lower horizontal beam 6 keep the engaging portion 6a engaged with the engaged portion 13a. Note that the biting portion 16d can be bitten into the square bar 13 and the fixing using the coach bolt 14 can be performed in the same manner as before.

  Subsequently, the biting portion 16c of the metal fitting 16 is bitten into the predetermined plural places (eight places in the illustrated example) on the opposite side of the square piece 13-2 in the square piece 13-3 and having different heights as before. Attach the bracket 16. Before and after this, the biting portion of the bracket 16 is the same as before in a predetermined plurality of places (eight places in the illustrated example) on the opposite side to the square 13-8 in the square 13-7 and having different heights. The metal fitting 16 is attached by biting 16c.

  Next, as shown in FIG. 13, the fourth square member 13-4 and the sixth square member 13-6, which are fourth from the left and fourth from the right, are placed vertically on the lower horizontal beam 6, The square member 13-4 is struck toward the third slab member 13-3 to cause the biting portion 16d of the metal fitting 16 to dig into the corner member 13-4 being struck, and the sixth slab member 13-6 is sunk into the seventh slab member. It strikes toward the 13-7 side to cause the biting portion 16d of the metal fitting 16 to bite into the striking square member 13-6. Thereafter, the square bars 13-4 and 13-6 are fixed to the corresponding third square bar 13-3 and seventh square bar 13-7 using a plurality of (four in the illustrated example) coach bolts 14, respectively. At this time, the through bolt 15 is positioned inside the recessed groove 13b in the fourth square member 13-4 and the sixth square member 13-6, and the fourth square member 13-4, the sixth square member 13-6, and the lower horizontal beam. 6 engages the engaging portion 6a with the engaged portion 13a. Note that the biting portion 16d can be bitten into the square bar 13 and the fixing using the coach bolt 14 can be performed in the same manner as before.

  Subsequently, as shown in FIG. 3, the distance between the fourth square member 13-4 and the sixth square member 13-6 is measured, and the width dimension of the fifth fifth square member 13-5 from the left at the center position is the above-mentioned. Adjust to approximately match the measurement interval. Then, the adjusted fifth square member 13-5 is vertically placed between the fourth square member 13-4 and the sixth square member 13-6. At this time, the through bolt 15 is positioned inside the concave groove 13b in the fifth square member 13-5, and the fifth square member 13-5 and the lower horizontal beam 6 have the engaging portion 6a as the engaged portion 13a. Engage.

  Next, the through bolt 15 is tightened to bring the third square bar 13-3 and the seventh square bar 13-7 closer to each other, and the fifth square bar 13-5 is moved by the third square bar 13-3 and the seventh square bar 13-7. Clamp from both sides. Although the head 15a of the through bolt 15 is provided on the third square member 13-3 and the nut 15b is provided on the seventh square member 13-7, the present invention is not limited to this, and the other two square members may be provided. Good. For example, the head 15a is provided on the second square 13-2 and the nut 15b is provided on the eighth square 13-8, or the head 15a is provided on the second square 13-2 and the nut 15b is provided on the seventh square 13-7. Alternatively, the head 15a may be provided on the third square member 13-3, and the nut 15b may be provided on the eighth square member 13-8.

  Next, a circular through-hole 18 is formed, for example, by a drill or the like across the fourth square member 13-4 and the fifth square member 13-5 in the reinforcing wall 20 to which the nine square members 13 are connected as described above. To do. The holes 18 are formed in a horizontal direction at a plurality of (six in the illustrated example) different height positions. Before and after this, a circular through hole 18 is formed in the same manner across the fifth square member 13-5 and the sixth square member 13-6.

  Subsequently, the fitting pin 17 shown in FIG. 6 is inserted into each of the formed holes 18. Thereby, the reinforcing wall 20 is completed.

  Finally, the upper frame 21 is attached to the step portion 13e provided at the upper end of the full square bar 13 (see FIG. 8), and both ends of the upper frame 21 are connected to the columns 4 and 5.

  As described above, the reinforcing wall 20 is fitted and fixed inside the rectangular frame 10. The formation of the hole 18 and the insertion of the fitting pin 17 may be performed after both ends of the upper frame 21 are connected to the columns 4 and 5.

  Therefore, in the case of the first embodiment, a rectangular frame 10 composed of the two adjacent columns 4 and 5 erected, the upper horizontal beam 7 and the lower horizontal beam 6 is obtained, and the inside of the rectangular frame 10 is obtained. Since the reinforcing wall 20 is placed on the lower horizontal beam 6 and fitted and fixed in a state sandwiched between the two columns 4 and 5, at least three sides (lower side and both side sides) of the rectangular frame 10 are rectangular. The three sides (lower side and both sides) of the reinforcing wall 20 having a shape are supported, and an earthquake-resistant structure that suppresses deformation of the rectangular frame 10 can be achieved. Therefore, an earthquake-resistant structure can be incorporated into an existing house relatively easily.

  Further, in the first embodiment, since the metal fitting 16 and the fitting pin 17 as the shearing force reducing means are provided between the adjacent ones of the square members 13, as shown in FIG. When the two adjacent square members 13A and 13B are bent in the same manner, the other square member 13B side surface of one square member 13A is contracted, and the one square member 13A side surface of the other square member 13B is expanded. Even if there is a possibility that a shearing force may be generated along the longitudinal direction of the square members 13A and 13B between the members 13A and 13B, the metal fitting 16 and the fitting pin 17 reduce the shearing force. Moreover, since the metal fitting 16 provided between the pillar 4 (5) and the square member 13 connected thereto is also reduced in the shearing force generated between them, it is excellent in earthquake resistance. For example, the wall magnification (earthquake resistance) is improved by 4.6 times compared to the value when bracing is used.

  Furthermore, in the first embodiment, the reinforcing wall 20 that suppresses deformation of the rectangular frame 10 inside the rectangular frame 10 by sequentially attaching a plurality of square members 13 between the two columns 4 and 5. Since it can be incorporated, it is possible to easily cope with the columns between which the distortion has occurred due to aging. Furthermore, since the engaging portion 6a and the engaged portion 13a are configured to engage with each other, the reinforcing wall 20 placed on the lower horizontal beam 6 is difficult to come off even when subjected to vibration due to an earthquake or the like.

(Second Embodiment)
In the first embodiment described above, the engaging portion 6a provided on the lower horizontal beam 6 and the engaged portion 13a provided on the lower surface of the square member 13 constituting the reinforcing wall 20 are engaged. In 2nd Embodiment, the structure which was further excellent in earthquake resistance is provided by hold | maintaining the lower end part of the reinforcement wall 20 with a lower side reinforcement member, and hold | maintaining the upper end part of the reinforcement wall 20 with an upper side reinforcement member.

  FIG. 15 is a front view showing the seismic structure according to the second embodiment, FIG. 16 is a front view showing the height direction intermediate part of the seismic structure, and FIG. 17 is a lower reinforcing member (or upper side). It is an external appearance perspective view which shows a reinforcement member. 18 is a view showing the lower reinforcing member (or the upper reinforcing member), where (a) is a front view, (b) is a left side view, (c) is a right side view, and (d) is a bottom view, FIG. 19E is a rear view, and FIG. 19 is an explanatory view of how square members are attached to the lower reinforcing member and the upper reinforcing member.

  In the seismic structure 1 </ b> A, the lower reinforcing member 50 is fixed to the lower horizontal beam 6, and the lower end portion 20 a of the reinforcing wall 20 is held by the lower reinforcing member 50. Further, the upper reinforcing member 51 is fixed to another horizontal beam 52 spanning the two columns 4 and 5 below the upper horizontal beam 7, and the upper end portion 20 b of the reinforcing wall 20 is attached to the upper reinforcing member 51. It has a retained configuration. Other components are configured in the same manner as in the first embodiment, and description thereof is omitted.

  The lower reinforcing member 50 and the upper reinforcing member 51 are made of metal (for example, made of steel) and have the same configuration that is used upside down. The configuration of the lower reinforcing member 50 and the upper reinforcing member 51 will be described as a representative of the lower reinforcing member 50.

  It has a rectangular bottom 50a, a left side 50b and a right side 50c connected to the short side of the bottom 50a, a front 50d and a back 50e connected to the long side of the bottom 50a, and the ceiling is opened. A concave groove 50g is formed. Further, an opening 50f is formed at the center of the front surface 50d. The opening 50f is for inserting the end portions (lower end portion and upper end portion) of the square member 13 and is arranged so as not to be seen on the rear surface side of the reinforcing wall 20.

  Further, mounting holes 50a1, 50b1, 50c1, 50d1, and 50e1 are formed in the bottom surface 50a, the left side surface 50b, the right side surface 50c, the front surface 50d, and the back surface 50e, respectively.

  The lower reinforcing member 50 and the upper reinforcing member 51 are attached before the square member 13 is disposed on the rectangular frame 10. The lower reinforcing member 50 is attached with the opening 50f facing the outside of the room and the bottom surface 50a facing downward, with the left side surface 50b and the right side surface 50c facing the corresponding side of the columns 4 and 5. This is done by fixing with the coach bolt 53 through the holes 50a1, 50b1, 50c1. On the other hand, the upper reinforcing member 51 is mounted with the opening 50f facing the outside of the room and the bottom surface 50a disposed on the upper side, and the left side surface 50b and the right side surface 50c facing the corresponding side of the columns 4 and 5. This is done by fixing with the coach bolt 53 through the holes 50a1, 50b1, 50c1. FIG. 19 is a view of the mounting state as seen from the outside of the room.

  Next, the lower end portion 13a of the square member 13 is moved in the A direction to be inserted into the opening 50f of the lower reinforcing member 50, and the upper end portion 13b of the square member 13 is moved in the A direction to the opening 50f of the upper reinforcing member 51. Then, the square member 13 is slid toward the left side surface 50b or the right side surface 50c along the concave groove 50g. This is performed on the square bar excluding the square bar 13-5 at the central position, and finally, the lower end portion 13a of the square bar 13-5 at the central position is inserted into the opening 50f of the lower reinforcing member 50 and the square bar at the central position. The upper end portion 13b of 13-5 is put in the opening 50f of the upper reinforcing member 51, and each square member 13 is connected via the coach bolt 14, the through bolt 15, the metal fitting 16, and the fitting pin 17. As a result, the reinforcing wall 20 held by the columns 4 and 5 is formed. In addition, regarding the slide direction of each square member 13, the square members 13-1, 13-2, 13-3, 13-4 are slid in the C direction, and the square members 13-9, 13-8, 13-7, 13-6. Slide in the B direction.

  Subsequently, each square member 13 constituting the reinforcing wall 20 is fixed to the lower reinforcing member 50 and the upper reinforcing member 51 by the coach bolt 53 via the mounting holes 50d1 and 50e1. At this time, the lower end 13 a of the square member 13 is fixed to the lower reinforcing member 50, and the upper end portion 13 b of the square member 13 is fixed to the upper reinforcing member 51. This fixing may be performed sequentially each time the square members 13 are connected to the adjacent columns 4 and 5 and the square members 13 before the reinforcing wall 20 is formed. By doing so, the seismic structure 1A shown in FIG. 15 is obtained.

  Therefore, in the seismic structure 1A according to the second embodiment, the lower end 20a of the reinforcing wall 20 is held by the metal lower reinforcing member 50, and the upper end 20b of the reinforcing wall 20 is made of metal. Since it is held by the upper reinforcing member 51, the four sides of the reinforcing wall 20 are supported by the rectangular frame, and can be made more excellent in earthquake resistance than in the case of the first embodiment. Further, since the lower reinforcing member 50 is fixed to the lower horizontal beam 6 and the one upper reinforcing member 51 is fixed to the horizontal beam 52, the left side surface 50b and the right side of the lower reinforcing member 50 and the upper reinforcing member 51 are fixed. The surface 50c is more excellent in earthquake resistance than the case where the surface 50c is fixed to the corresponding side of the columns 4 and 5. Furthermore, since both ends of all the square members 13 constituting the reinforcing wall 20 are fixed to the lower reinforcing member 50 and the upper reinforcing member 51 by the coach bolts 53, both ends of a part of the square member 13 constituting the reinforcing wall 20 Compared with the case where the portion is fixed to the lower reinforcing member 50 and the upper reinforcing member 51, the vibration resistance is further improved.

  However, in the present invention, only one of the lower reinforcing member 50 and the upper reinforcing member 51 is used, and the lower reinforcing member 50 or the upper reinforcing member 51 is not attached to the lower horizontal beam 6 or the horizontal beam 52. The fixing includes fixing both ends of some of the square members instead of all the square members 13 constituting the reinforcing wall 20 to the lower reinforcing member 50 and the upper reinforcing member 51.

  In the second embodiment, the upper reinforcing member 51 is fixed to the horizontal beam 52 provided below the upper horizontal beam 7. However, the present invention is not limited to this, and the upper horizontal beam 7 is not limited thereto. This also includes the case where the upper reinforcing member 51 is fixed.

  In the first and second embodiments described above, eight metal fittings 16 are provided between the pillar 4 (5) and the square member 13 or between the square members 13, but the present invention is not limited to this. For example, 1 to 7 or 9 or more may be provided.

  Further, in the first and second embodiments described above, four coach bolts 14 for connecting the square members 13 are provided for each square member 13, but the present invention is not limited to this, and one to three or five are provided. You may provide more than this. However, although it depends on the size of the coach bolt 14, the larger the number, the better.

  Furthermore, in the first and second embodiments described above, six fitting pins 17 are provided between the adjacent square members 13, but the present invention is not limited to this, and 1 to 5 or 7 or more are provided. It may be provided. However, although it depends on the material and size of the fitting pin 17, the larger the number, the better.

  Furthermore, in the first and second embodiments described above, both the metal fitting 16 and the fitting pin 17 are used. However, the present invention is not limited to this, and only one of them may be used. However, although the metal fitting 16 is difficult to apply to the last fitting such as the fifth square member, the fitting pin 17 has no limitation on the application location and is excellent in convenience. In the second embodiment, that is, when the upper and lower ends of the reinforcing wall 20 are fixed to the lower reinforcing member 50 and the upper reinforcing member 51, both the metal fitting 16 and the fitting pin 17 are omitted. In addition, the present invention can be applied to a reinforcing wall having a configuration in which adjacent square members 13 are connected to each other by fastening means (coach bolts 14) and through bolts 15.

  Furthermore, in the first and second embodiments described above, the metal fitting 16 bites one biting portion 16c into a square bar or pillar, and then hits the other biting portion 16d by hitting the adjacent square bar. Although it cuts into the square, the present invention is not limited to this. For example, the metal fitting 16 may be provided between two square members by arranging the metal fitting 16 between two square members (or columns and square members) and bringing the square members closer together.

As the metal fitting, as shown in FIG. 20 (a), a metal fitting 16A in which a biting portion 16f is provided on both sides of the flange 16e, that is, a pair of biting portions 16f may be used. Alternatively, as shown in FIG. 20 (b), a metal fitting 16B having a plurality of biting parts 16h on one side across the connecting piece 16g, in the example shown in the drawing, and having the same number of biting parts 16i on the other side. It may be used. In addition, the number of the biting parts 16h and the biting parts 16i may be different. The shape of the biting portion is preferably the shape of the tip of a hammer or the tip of a nail, but may be another shape. For example, a waveform (the same waveform is formed on the surface of a square bar) may be used.

  Furthermore, in the first and second embodiments described above, the hole for inserting the fitting pin is formed after the adjacent square members are connected, but the present invention is not limited to this. A semicircular concave groove may be separately formed in each of two square bars arranged adjacent to each other, and a circular hole may be formed by connecting these two concave grooves. That is, you may make it form a ditch | groove before connecting two square members. Further, the shape of the concave groove is not limited to a semicircular shape, and may be a triangle or a quadrangle, and the shape of the fitting pin may correspond to these shapes. For example, a fitting pin having a rectangular cross section can be used.

  Furthermore, in the first and second embodiments described above, a plurality of square members 13 are sequentially attached between the two pillars 4 and 5 to thereby suppress the deformation of the rectangular frame 10 inside the rectangular frame 10. Although the wall 20 is incorporated, the present invention is not limited to this. For example, as shown in FIG. 21, the nine square members 13 are connected, and the reinforcing walls 20 that do not fix the square members 13-1 and 13-9 at both ends to the columns 4 and 5 are fitted inside the rectangular frame 10, and then the columns You may fix to 4 and 5 with a coach bolt etc. The number of the square members 13 of the reinforcing wall 20 is not limited to nine and may be an arbitrary number.

  Furthermore, in the present invention, as shown in FIG. 22, a rectangular frame 33 is formed between the columns 5 and 5 by the upper beam 30 and the lower horizontal member 31 arranged in parallel in the vertical direction. The same applies to the reinforcing wall 34 in which two horizontal beams are formed and fixed to the inside of the rectangular frame 33 and formed by connecting a plurality of square members. Further, as shown in FIG. 22, the present invention is also applied to the upper wall portion 36 of the lintel portion 35, the adjacent wall portions 37 and 38 of the lintel portion 36, or the lower wall portion 41 of the lintel portion 35. Can do. In the wall 41, 43 in FIG. 22 is used as the upper horizontal beam, and 6-A is used as the lower horizontal beam.

  Furthermore, although not explicitly stated in the first and second embodiments described above, the present invention is applied not only to the first floor portion where the foundation is disposed on the foundation, but also to the wall portions of the second and third floor portions. Is applicable.

  Furthermore, in the first and second embodiments described above, an example is given in which the reinforcing wall is fixed to the rectangular frame by fastening using a coach bolt, but the present invention is not limited to this, and fastening members such as screws and nails are provided. May be used as a fixing means.

  Furthermore, although not explicitly stated in the first and second embodiments described above, the present invention provides a connection between the columns 4 and 5 and the lower horizontal beam 6 and a connection between the columns 4 and 5 and the upper horizontal beam 7. It is preferable to reinforce the connecting portion between the portion or the pillars 4 and 5 and the horizontal beam 52 using a reinforcing metal fitting (not shown). As the reinforcing bracket, a reinforcing bracket having a shape corresponding to the form of the connecting portion, for example, a reinforcing bracket such as an I shape, an L shape, or a T shape is used.

1, 1A Seismic structure 3 Wall 4, 5 Column 6, 6-A Lower horizontal beam 7, 43 Upper horizontal beam 10 Rectangular frame 13 Square member 14 Coach bolt (fixing means or fastening means)
16 Metal fitting 17 Mating pin 18 Hole 20 Reinforcement wall 30 Beam (horizontal beam)
31 Horizontal material (horizontal beam)
50 Lower reinforcement member 51 Upper reinforcement member 52 Another horizontal beam C Empty space

Claims (11)

A seismic structure that reinforces walls to improve the seismic performance of houses already completed by the frame construction method,
A rectangular frame composed of two standing pillars, a lower horizontal beam, and an upper horizontal beam, the inside of which is an empty space,
Inside the rectangular frame, a rectangular shape that is placed on the lower horizontal beam and fitted between the two pillars, and a plurality of square members are formed along the lower horizontal beam. A reinforcing wall that is arranged side by side and in which the adjacent ones of the square members are connected by fastening means;
Fixing means for fixing the reinforcing wall to each of the two pillars;
A lower metal reinforcing member having a concave groove into which the lower end of the reinforcing wall enters, and both ends of which are fixed to the two pillars;
An earthquake-resistant structure comprising: a metal upper reinforcing member having a concave groove into which an upper end portion of the reinforcing wall enters, and both ends fixed to the two pillars. In the earthquake-resistant structure according to claim 1,
The seismic structure, wherein the lower reinforcing member is fixed to the lower horizontal beam. In the earthquake-resistant structure according to claim 1 or 2,
The seismic structure is characterized in that the upper reinforcing member is fixed to the upper horizontal beam or a horizontal beam separately provided between the two adjacent pillars. In the earthquake-resistant structure according to any one of claims 1 to 3,
The lower ends of the plurality of square members constituting the reinforcing wall are fixed to the lower reinforcing member, and the upper ends of the plurality of square members constituting the reinforcing wall are fixed to the upper reinforcing member. Seismic structure characterized by that. The earthquake-resistant structure according to any one of claims 1 to 4,
An earthquake-resistant structure, wherein an opening through which an end portion of the square member is inserted is provided on each of one side surface of the lower reinforcing member and one side surface of the upper reinforcing member. In the earthquake-resistant structure according to any one of claims 1 to 5,
A seismic structure, further comprising a shearing force reducing means provided between adjacent ones of the square members and reducing a shearing force generated between the adjacent square members along the longitudinal direction of the square members. . The earthquake-resistant structure according to claim 6,
The earthquake-resistant structure according to claim 1, wherein the shearing force reducing means is an integrated metal fitting having a biting portion for biting into both adjacent square members on opposite sides. In the earthquake-resistant structure according to claim 7,
The metal fitting is a substantially I-shaped metal fitting in which a pair of biting portions on opposite sides are respectively provided at both ends of a connecting piece. The earthquake-resistant structure according to claim 6 ,
The said shearing force reduction means has a ditch | groove provided in the state which opposes both the adjacent square members, and a fitting pin provided inside the said ditch | groove which opposes, The earthquake-resistant structure characterized by the above-mentioned. In the earthquake-resistant structure according to claim 9,
The seismic structure, wherein the concave groove is a semicircular groove and the fitting pin is a cylindrical pin.   An earthquake-resistant house in which the earthquake-resistant structure according to any one of claims 1 to 10 is incorporated.

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