JP6376641B2 - Seismic reinforcement structure - Google Patents

Description

  The present invention relates to a seismic reinforcement structure for improving the earthquake resistance of a building.

  Patent Document 1 discloses a seismic retrofit that improves the earthquake resistance of an existing building by attaching a plate-shaped reinforcing sheet (that is, a reinforcing wall) across the two pillars between the ceiling and the floor of the existing building. A wall has been proposed.

JP2013-139698A

  However, in the seismic retrofit wall of Patent Document 1, a reinforcing wall is attached to the upper part of the two columns above the ceiling and the upper beam (horizontal member) extending over the upper ends of the two columns. It was difficult to improve the earthquake resistance in this part.

  Moreover, in the earthquake-proof repair wall of patent document 1, a reinforcement wall is affixed on the lower beam part (horizontal material) over the site | part below a floor among two pillars, and the lower end part of these two pillars. It was difficult to improve the earthquake resistance in this area.

  In view of the above circumstances, in the present invention, it is an object to propose a seismic reinforcement structure that can reinforce the pillars and horizontal members of the building in the vertical direction and improve the earthquake resistance of the building. And

The seismic reinforcement structure according to the present invention is an earthquake-resistant reinforcement structure for reinforcing a building having two adjacent pillars and a horizontal member spanning the two pillars, or a frame thereof, A reinforcing wall that is fixed over the two pillars at a position spaced vertically from the horizontal member, and is attached between the horizontal member and the reinforcing wall, and is integrated with the reinforcing wall. and a reduction is Ru brace, the brace includes a first fixing portion fixed to the horizontal member, and a second fixing portion fixed to the pillar, the third stationary fixed to the reinforcing wall Part.

  Moreover, it is preferable that the said 2nd fixing | fixed part is provided so that it may contact | abut to the said pillar over the up-down direction between the said horizontal member and the said reinforcement wall.

  Moreover, it is preferable that said 2nd fixing | fixed part has a protrusion part which protrudes in the direction which leaves | separates from said 1st fixing | fixed part rather than said 3rd fixing | fixed part, and is provided so that it may contact | abut to said pillar also in said protruding part. .

  The reinforcing wall is preferably a metal sandwich panel in which a core material is filled between two metal skins.

  The seismic reinforcement structure of the present invention can reinforce a portion of the column, for example, between the ceiling and the floor by the reinforcing wall, and the reinforcing member fixed to the reinforcing wall, for example, of the column and the horizontal member, for example, the ceiling. It is possible to reinforce the upper part and the lower part of the floor. Therefore, in the seismic reinforcement structure of the present invention, the pillars and horizontal members of the building frame can be reinforced in the vertical direction by the integrated reinforcing wall and the reinforcing tool, and the earthquake resistance of the building is improved. be able to.

It is a perspective view which shows the earthquake-proof reinforcement structure of 1st embodiment of this invention. The principal part of a seismic reinforcement structure same as the above is shown, (a) is a front view, (b) is a plane sectional view in the AA 'line of (a). It is a perspective view which shows an example of the reinforcement wall of an earthquake-proof reinforcement structure same as the above. The reinforcement tool of an earthquake-proof reinforcement structure same as the above is shown, (a) is a front view, (b) is a left side view, (c) is a plan view, and (d) is a bottom view. It is a plane sectional view in the BB 'line of FIG. The principal part of the earthquake-proof reinforcement structure of 2nd embodiment of this invention is shown, (a) is a front view, (b) is a plane sectional view in CC 'line of (a), (c) is It is another front view. FIG. 6A shows a reinforcing tool arranged at the site of FIG. 6A of the same seismic reinforcement structure, FIG. 6A is a front view, FIG. 6B is a left side view, and FIG. (D) is a bottom view, and (e) is a right side view. FIG. 6 shows a reinforcing tool arranged in the part of FIG. 6C of the seismic reinforcement structure same as above, (a) is a front view, (b) is a left side view, (c) is a plan view, (D) is a bottom view, and (e) is a right side view.

  Hereinafter, modes for carrying out the present invention will be described.

  In FIG. 1, the earthquake-proof reinforcement structure of 1st embodiment of this invention is shown. The seismic reinforcement structure of this embodiment is a seismic reinforcement structure for reinforcing a building frame. The housing includes at least two pillars 1 and a horizontal member 2 spanning two adjacent pillars 1 and 1. The horizontal member 2 includes an upper horizontal member 20 that extends over the upper ends of two adjacent columns 1, 1 and a lower horizontal member 21 that extends over the lower ends of two adjacent columns 1, 1. Have. In the first floor portion of the building, the upper horizontal member 20 is a beam (floor beam or shed beam), and the lower horizontal member 21 is a foundation. In the second floor part of a two-story building, the upper horizontal member 20 is a beam (shed beam), and the lower horizontal member 21 is a floor beam.

  The seismic reinforcement structure of the present embodiment includes a reinforcing wall 3, a reinforcing tool 4, a reinforcing plate 5, and a receiving material 6. The reinforcing wall 3 is bridged between the two pillars 1 and 1 and fixed at a position away from the horizontal member 2 in the vertical direction. The reinforcing tool 4 is attached between the horizontal member 2 and the reinforcing wall 3. The reinforcing plate 5 is fixed to a part of the column 1 to which the reinforcing wall 3 is attached. The reinforcing wall 3 is fixed to the column 1 via the reinforcing plate 5. In the following, with the state shown in FIG. 1 as a reference, the direction in which the two columns 1 and 1 are arranged is the left-right direction, the side where the column 1 is positioned with respect to the reinforcing wall 3 is the front, and the opposite direction is the rear. Each configuration will be described. Incidentally, the direction in which the two horizontal members 20 and 21 are lined up (the longitudinal direction of the column 1) is the vertical direction. That is, the direction indicated by the arrow X1 in FIG. 1 is the forward direction, the opposite direction is the backward direction, the direction indicated by the arrow Y1 is the right direction, the opposite direction is the left direction, and the direction indicated by the arrow Z1. Is the upward direction, and the opposite direction is the downward direction.

  In the present embodiment, the reinforcing wall 3 is bridged between two adjacent pillars 1 and 1 at a position spaced apart from the upper horizontal member 20 and spaced upward from the lower horizontal member 21. Fixed. In other words, the reinforcing wall 3 is fixed in the vertical direction to a portion between the two existing columns 1 and 1 between the existing ceiling and the floor. Therefore, an opening (hereinafter referred to as “upper opening 15”) is formed between the reinforcing wall 3 and the upper horizontal member 20 in front view, and between the reinforcing wall 3 and the lower horizontal member 21. An opening (hereinafter referred to as “lower opening 16”) is formed in front view.

  The reinforcing wall 3 is constituted by, for example, a plurality of metal sandwich panels 30 that are arranged in the vertical direction. Below, the metal sandwich panel 30 is described as the panel 30 as needed. As shown in FIG. 3, the panel 30 is obtained by filling a core material 33 between two metal skins 31 and 32.

  The metal shells 31 and 32 are formed in a predetermined shape by performing processing such as roll forming on a flat metal plate. Examples of the metal plate include a steel plate, a galvanized steel plate, a Galvalume steel plate (registered trademark), an SGL (registered trademark) steel plate, a vinyl chloride steel plate, and a coated steel plate. The plate thickness of the metal shells 31 and 32 is not particularly limited, but is, for example, 0.3 to 2.0 mm.

The core material 33 has heat insulation properties, and preferably has fire resistance and fire resistance. The core material 33 is, for example, an inorganic fiber material such as rock wool or glass wool, or a molded body of a resin foam such as urethane foam or phenol foam. Although the core material 33 is not specifically limited, For example, thickness is 20-150 mm and a density is 30-200 kg / m < ³ >. The core material 33 may be a single piece over the entire panel 30 or may be configured by arranging a plurality of block-like objects in parallel.

  Moreover, the core material 33 filled in the peripheral end portion of the panel 30 may be a fireproof core material formed of a material having higher fire resistance than the above-described inorganic fiber material or resin foam material. The refractory core is made of an inorganic material such as gypsum or calcium silicate, for example.

  The metal shells 31 and 32 and the core member 33 are bonded and integrated using an adhesive or the like. The panel 30 is a plate body in which the left-right direction is the longitudinal direction, the up-down direction is the short direction, and the front-rear direction is the thickness direction, and has a fitting projection 34 at one end (upper end) and the other end (lower end). ) Has a fitting recess 35. Therefore, the panels 30 and 30 arranged adjacent to each other in the vertical direction can be connected by fitting the fitting convex portion 34 and the fitting concave portion 35. The panel 30 may not have the fitting convex part 34 and the fitting concave part 35. Further, the reinforcing wall 3 is not limited to the metal sandwich panel 30 but may be a plywood, a plaster board, or a metal plate.

  The reinforcing plate 5 is a plate formed of a metal plate such as a steel plate, a resin plate such as acrylic resin, urethane resin, or epoxy resin, or a composite material such as FRP (fiber reinforced plastic). In this embodiment, the reinforcing plate 5 is a rectangular plate. The left-right width of the reinforcing plate 5 is the same as or slightly smaller than the left-right width of the rear surface of the column 1. The vertical length of the reinforcing plate 5 is substantially the same as the vertical length of the reinforcing wall 3 fixed to the column 1. When the reinforcing plate 5 is, for example, a steel plate, the thickness is 0.1 to 5.0 mm. The reinforcing plate 5 may have projecting pieces protruding forward at both left and right end portions, and the pair of left and right projecting pieces may hit the left and right side surfaces of the column 1.

  The reinforcing plate 5 can be omitted when the pillar 1 is not insufficient in strength. That is, the reinforcing wall 3 may be directly fixed to the column 1 without using the reinforcing plate 5.

  The receiving member 6 includes an upper receiving member 60 that receives the upper end portion of the reinforcing wall 3 and a lower receiving member (not shown) that receives the lower end portion of the reinforcing wall 3. The receiving member 6 receives the reinforcing wall 3 with the front surface of the reinforcing wall 3 superimposed on the rear surface. The receiving material 6 is, for example, wood, and is a square material whose longitudinal direction is the left-right direction. The length of the receiving material 6 in the left-right direction is the same as or slightly shorter than the distance between the two adjacent pillars 1 and 1. Note that the receiving material 6 is not limited to wood, and may be made of metal or hard resin.

  In the present embodiment, as shown in FIG. 1, the reinforcing tool 4 is respectively disposed inside four corners of a rectangular frame composed of two columns 1, 1 and two horizontal members 2, 2. Arranged. The four reinforcing tools 4 have vertical lengths corresponding to the distance from the upper horizontal member 20 to the existing ceiling member or the distance from the lower horizontal member 21 to the existing floor member, respectively. Has a similar structure. Hereinafter, as necessary, the reinforcing tool 4 disposed at the upper left is referred to as an upper left reinforcing tool 400, the reinforcing tool 4 disposed at the upper right is referred to as an upper right reinforcing tool 401, and the reinforcing tool 4 disposed at the lower left. Is described as a lower left reinforcing tool 402, and the reinforcing tool 4 arranged at the lower right is described as a lower right reinforcing tool 403.

  Of the four reinforcing tools 4, the upper left reinforcing tool 400 will be described in detail as a representative. As shown in FIGS. 2 (a) and 4 (a) to 4 (d), the upper left reinforcing tool 400 includes a first fixing portion 40 fixed to the lower surface of the upper horizontal member 20 and the left column 1. A second fixing portion 41 fixed to the inner side surface (right side surface) of the first and second fixing portions 42 fixed to the reinforcing wall 3 via the receiving member 6 are integrally provided. The upper left reinforcing tool 400 further includes a connecting portion 43 that connects the first fixing portion 40, the second fixing portion 41, and the third fixing portion 42, and a reinforcing portion 44 provided on the second fixing portion 41.

  In the upper left reinforcing tool 400, the connecting portion 43 has a substantially rectangular plate shape in which the vertical direction is the longitudinal direction, the horizontal direction is the short direction, and the longitudinal direction is the thickness direction. The first fixing portion 40 has a substantially rectangular plate shape in which the left-right direction is the longitudinal direction, the front-rear direction is the short direction, and the vertical direction is the thickness direction. The first fixing portion 40 protrudes rearward from the upper end of the connecting portion 43 and is substantially perpendicular to the connecting portion 43.

  The third fixing portion 42 has a substantially rectangular plate shape in which the left-right direction is the longitudinal direction, the front-rear direction is the short direction, and the vertical direction is the thickness direction. The third fixing portion 42 protrudes rearward from the lower end of the connecting portion 43 and is substantially perpendicular to the connecting portion 43.

  The first fixed portion 40 and the third fixed portion 42 have the same size and are arranged in parallel. The left-right width of the first fixing portion 40 and the left-right width of the third fixing portion 42 are the same as the left-right width of the connecting portion 43. In the present embodiment, the third fixed portion 42 and the first fixed portion 40 have a right rear corner having an arc shape in plan view.

  The second fixing portion 41 has a rectangular plate shape in which the vertical direction is the longitudinal direction, the front-rear direction is the short direction, and the left-right direction is the thickness direction. The second fixing portion 41 protrudes rearward from the left end of the connecting portion 43 and is substantially perpendicular to the connecting portion 43. The front-rear width of the second fixing part 41, the front-rear width of the first fixing part 40, and the front-rear width of the third fixing part 42 are the same. The vertical length of the second fixing portion 41 is slightly shorter than the vertical length of the connecting portion 43. The second fixing portion 41 is formed at a position that does not overlap the first fixing portion 40 and the third fixing portion 42 in a side view.

  The reinforcing portion 44 has a rectangular plate shape in which the vertical direction is the longitudinal direction, the horizontal direction is the short direction, and the longitudinal direction is the thickness direction. The reinforcing portion 44 protrudes rightward from the rear end of the second fixing portion 41 and is substantially perpendicular to the second fixing portion 41. The reinforcing portion 44 is parallel to the connecting portion 43. The left and right length of the reinforcing portion 44 is shorter than the left and right length of the connecting portion 43. The reinforcing portion 44 is provided such that the front end portion (right end portion) overlaps the left rear portion of the first fixing portion 40 and the left rear portion of the third fixing portion 42 in plan view. The vertical length of the reinforcing portion 44 is the same as the vertical length of the second fixing portion 41. The reinforcing portion 44 is formed at a position that does not overlap the first fixing portion 40 and the third fixing portion 42 in a front view.

  In the present embodiment, the corner formed by the connecting portion 43 and the first fixing portion 40, the corner formed by the connecting portion 43 and the second fixing portion 41, the connecting portion 43 and the third fixing portion 42 are used. Each of the corners formed by the second fixing portion 41 and the reinforcing portion 44 has a circular cross section in the longitudinal direction.

  A plurality of through holes 45 penetrating in the thickness direction are formed in the first fixing portion 40, the second fixing portion 41, and the third fixing portion 42, respectively. A fixing tool 7 such as a screw for fixing the upper left reinforcing tool 400 is driven into the through hole 45. Arrangement | positioning of the several through-hole 45 in each fixing | fixed part 40,41,42 is suitably set so that it can fix to each member 2,1,6 firmly. For example, a plurality of through holes 45 are arranged in the second fixing portion 41 in the vertical direction while being alternately shifted in the front-rear direction, and the plurality of through holes 45 are arranged in the first fixing portion 40 and the third fixing portion 42. Are arranged side by side in the left-right direction while being alternately shifted in the front-rear direction.

  In the present embodiment, the upper left reinforcing tool 400 is made of metal, and the thickness of each of the first fixing portion 40, the second fixing portion 41, the third fixing portion 42, the connecting portion 43, and the reinforcing portion 44 is, for example, 4.5 mm. It is. The upper left reinforcing tool 400 is formed by injection molding or the like. Note that the upper left reinforcing member 400 is not limited to metal, and may be formed of a resin such as an acrylic resin, a urethane resin, or an epoxy resin, or a composite material such as FRP (fiber reinforced plastic).

  In the upper left reinforcing tool 400, the third fixing portion 42 is fixed to the upper end portion of the reinforcing wall 3 via the upper receiving member 60. Specifically, the upper receiving member 60 is placed on the third fixing portion 42 by the fixture 7 in which the left end portion of the upper receiving member 60 is placed on the third fixing portion 42 and driven from below the through hole 45 of the third fixing portion 42. Fixed. Then, the front surface of the upper end portion of the reinforcing wall 3 is overlapped with the rear surface of the upper receiving member 60, and the upper end portion of the reinforcing wall 3 is fixed to the upper receiving member 60 by a fixture 8 such as a nail driven from behind the reinforcing wall 3. Is done. Thereby, the third fixing portion 42 is fixed to the upper end portion of the reinforcing wall 3 via the upper receiving member 60. 2A and 2B show an example in which the fixing tool 7 is driven into one of the plurality of through holes 45 of the third fixing portion 42, but the plurality of through holes The fixture 7 may be driven into two or more through-holes 45 out of 45.

  The upper left reinforcing member 400 is formed with a vertical length in which the upper receiving member 60 fixed to the third fixing portion 42 is positioned below the existing ceiling member while being fixed to the upper horizontal member 20. .

  The upper right reinforcing tool 401 is provided symmetrically with the upper left reinforcing tool 400 described above. That is, in the upper right reinforcing tool 401, the arrangement of the first fixing part 40 and the third fixing part 42 with respect to the connecting part 43 is the same as that of the upper left reinforcing tool 400, and the second fixing part 41 is rearward from the right end of the connecting part 43. Protrusively toward. The reinforcing portion 44 protrudes leftward from the rear end of the second fixed portion 41.

  In this embodiment, since the upper left reinforcing tool 400 and the upper right reinforcing tool 401 have the same vertical length, the upper left reinforcing tool 400 is used as the upper right reinforcing tool 401 by rotating it 180 degrees in front view. Can do. At this time, the first fixing part 40 is a part fixed to the reinforcing wall 3, and the third fixing part 42 is a part fixed to the upper horizontal member 20.

  The lower left reinforcing tool 402 is provided symmetrically with the upper left reinforcing tool 400 described above. That is, in the lower left reinforcing tool 402, the arrangement of the second fixing part 41 and the reinforcing part 44 with respect to the connecting part 43 is the same as that of the upper left reinforcing tool 400, and the first fixing part 40 is directed rearward from the lower end of the connecting part 43. The third fixing portion 42 protrudes rearward from the upper end of the connecting portion 43. In the present embodiment, the lower left reinforcing tool 402 can be used as the lower left reinforcing tool 402 when the upper left reinforcing tool 400 has the same vertical length as the upper left reinforcing tool 400. At this time, the first fixing part 40 is a part fixed to the reinforcing wall 3, and the third fixing part 42 is a part fixed to the lower horizontal member 21.

  The lower right reinforcing tool 403 is provided symmetrically with the lower left reinforcing tool 402 described above. That is, in the lower right reinforcing tool 403, the arrangement of the first fixing part 40 and the third fixing part 42 with respect to the connecting part 43 is the same as that of the lower left reinforcing tool 402, and the second fixing part 41 is rearward from the right end of the connecting part 43. Protrusively toward. The reinforcing portion 44 protrudes leftward from the rear end of the second fixed portion 41.

  In the present embodiment, since the lower left reinforcing tool 402 and the lower right reinforcing tool 403 have the same vertical length, the lower left reinforcing tool 402 is rotated by 180 degrees when viewed from the front, thereby forming the lower right reinforcing tool 403. Can be used.

  In the lower left reinforcing tool 402 and the lower right reinforcing tool 403, the upper surfaces of the left and right end portions of the receiving material 6 (lower receiving material) are superimposed on the lower surface of the third fixing portion 42, and the through holes 45 of the third fixing portion 42 are formed. The left and right end portions of the lower receiving material are fixed to the third fixing portion 42 by the fixing tool 7 driven from above.

  In this embodiment, each reinforcing tool 400, 401, 402, 403 can be comprised by the reinforcing tool 4 of the same shape, when the vertical length is the same.

  The seismic reinforcement structure of this embodiment demonstrated above performs the seismic reinforcement of the frame of the existing building using the earth wall 11, as shown in FIG. Existing buildings using earthen walls 11 are often found in those built before 1981.

  The earth wall 11 is formed between two adjacent columns 1 and 1. The earth wall 11 is formed, for example, by forming a net-like base material in which elongated bamboo or timber is connected by a rope or the like between two adjacent pillars 1 and 1, and this base material is coated with wall earth. Is. The rear surface of the earth wall 11 is located in front of the rear surface of the pillar 1. In addition, it is preferable to set the front-rear length of the reinforcing tool 4 below the front-rear length from the rear surface of the earth wall 11 to the rear surface of the column 1. On the outdoor side (front side) of the two adjacent pillars 1 and 1 and the earth wall 11, a wood rail 12, a lath net 13, and a mortar 14 are stacked in this order, and the surface (front surface) of the mortar 14 is painted. Is given.

  The seismic reinforcement structure of this embodiment is constructed in the following manner on the above-described existing building frame.

  First, the reinforcing plate 5 is arranged along the indoor surface (rear surface) of the column 1, and the reinforcing plate 5 is fixed to the column 1 with a fixture 9 such as a nail. Here, the reinforcing plate 5 is fixed to the column 1 using a plurality of fixing tools 9 in the longitudinal direction (vertical direction). The plurality of fixtures 9 are arranged in the vertical direction with a predetermined interval.

  Then, the reinforcing tools 4 (400, 401, 402, 403) are respectively provided inside the four corners of the rectangular frame composed of the two columns 1, 1 and the two horizontal members 2, 2. Fix it. At this time, the first fixing portion 40 of each reinforcing tool 4 is applied to the horizontal member 2 (upper horizontal member 20 or lower horizontal member 21), and the fixing member 7 is driven into the through hole 45 of the first fixing member 40. The first fixing part 40 is fixed to the horizontal member 2. At this time, the second fixing portion 41 of each reinforcing tool 4 is applied to the inner surface of the column 1 (the left side surface of the right column 1 or the right side surface of the left column 1), and the fixing device 7 is fixed to the second fixing portion 41. The second fixing portion 41 is fixed to the pillar 1 by driving into the through hole 45. At this time, the 2nd fixing | fixed part 41 is fixed in the state contact | abutted to the pillar 1 over the up-down direction between the horizontal member 2 and the reinforcement wall 3. As shown in FIG. When the earth wall 11 between the two pillars 1 and 1 obstructs the installation of the reinforcing tool 4, a part of the earth wall 11 is removed and the reinforcing tool 4 is fixed. In addition, when the existing ceiling material or floor material interferes with the installation of the reinforcing tool 4, a part of the ceiling material or floor material is removed and the reinforcing tool 4 is fixed. Incidentally, either the fixing of the reinforcing plate 5 or the fixing tool 4 may be performed first.

  Next, the upper receiving material 60 is bridged on the upper surface of the third fixing portion 42 of the pair of left and right reinforcing tools 4 (400, 401) positioned on the upper side, and the fixing device 7 is placed below the through hole 45 of the third fixing portion 42. Then, the left and right end portions of the upper receiving member 60 are fixed to the third fixing portion 42. Then, the receiving material 6 (lower receiving material) is bridged on the lower surface of the third fixing portion 42 of the pair of left and right reinforcing tools 4 (402, 403) located on the lower side, and the fixing device 7 is attached to the third fixing portion 42. Driving from above the through hole 45, the left and right end portions of the lower support member are fixed to the third fixing portion 42. At this time, the upper receiving material 60 protrudes downward from the existing ceiling material, and the lower receiving material protrudes upward from the existing floor material.

  Next, the panel 30 is attached to the column 1 by the fixture 8 driven from the rear of the panel 30 along the back surface (front surface) of the side end portion of the panel 30 along the indoor surface (rear surface) of the reinforcing plate 5 fixed to the column 1. To fix. The panel 30 is disposed so as to span between two adjacent pillars 1 and 1, and both left and right end portions of the panel 30 are fixed to the pillar 1 by a plurality of fixtures 8. At this time, the plurality of fixtures 8 are arranged on the left and right side ends of the panel 30 in the vertical direction at a predetermined interval. With the above method, a plurality of panels 30 are attached to the pillars 1 while being arranged vertically and horizontally. At this time, the panels 30 adjacent in the vertical direction are connected by fitting the fitting convex portion 34 and the fitting concave portion 35.

  Of the plurality of panels 30, the panel 30 arranged at the top has the front surface at the upper end along the rear surface of the upper receiving member 60, and is fixed by the fixing tool 8 driven from behind the panel 30. Is fixed to the upper receiving member 60. The upper end portion of the panel 30 arranged on the top is fixed to the upper receiving member 60 by driving a plurality of fixing tools 8 in the longitudinal direction (left-right direction). The plurality of fixtures 8 are arranged on the upper end portion of the panel 30 in the left-right direction with a predetermined interval. At this time, the panel 30 arranged on the top is fixed below the ceiling material without removing the existing ceiling material. In other words, the uppermost panel 30 is arranged such that the upper end thereof is in contact with the lower surface of the ceiling material, or a gap is formed between the upper end and the lower surface of the ceiling material.

  In addition, for the panel 30 arranged at the bottom of the plurality of panels 30, the fixing tool 8 driven from the rear of the panel 30 along the rear surface of the lower support member with the front surface of the lower end portion thereof, The lower end portion of the panel 30 is fixed to the lower backing material. The lower end portion of the panel 30 arranged at the bottom is fixed to the lower receiving material by inserting a plurality of fixing tools 8 along the longitudinal direction thereof. The plurality of fixtures 8 are arranged at a lower end portion of the panel 30 in the left-right direction with a predetermined interval. At this time, the lowermost panel 30 is fixed above the flooring without removing the existing flooring. That is, the panel 30 arranged at the bottom is arranged such that the lower end thereof is in contact with the upper surface of the floor material or a gap is formed between the upper surface of the ceiling material.

  The plurality of panels 30 arranged side by side may be fixed to the column 1 in order from the lower side, or may be fixed to the column 1 in order from the upper side. The panel 30 arranged at the top or the bottom is fixed to the pillar 1 and the receiving material 6 after the vertical length is adjusted by cutting it according to the position of the receiving material 6 to be fixed. The

  After the reinforcing wall 3 (the plurality of panels 30) is fixed to the pillar 1, an interior finishing material such as cloth or interior coating is provided on the indoor surface (rear surface) of the reinforcing wall 3. Also, if some existing ceiling or flooring is removed, it will be repaired.

  In the earthquake-proof reinforcement structure of the present embodiment described above, a portion between the two pillars 1 and 1 adjacent to each other between the ceiling and the floor can be reinforced by the reinforcement wall 3. And in the seismic reinforcement structure of this embodiment, by the reinforcement tool 4 fixed to the reinforcement wall 3, between two adjacent pillars 1 and 1 and two upper and lower horizontal members 2 and 2 spanned over this, The part above the ceiling and the part below the floor can be reinforced. Therefore, in the seismic reinforcement structure of this embodiment, the pillar 1 and the horizontal member 2 of the building frame can be reinforced in the vertical direction by the integrated reinforcing wall 3 and the reinforcing tool 4, thereby The earthquake resistance of the whole building including other walls, ceilings, braces, etc. can be improved.

  Moreover, in the seismic reinforcement structure of this embodiment, the 2nd fixing | fixed part 41 is fixed to the pillar 1, and the 1st fixing | fixed part 40 is fixed to the horizontal member 2, and thereby the junction part of the column 1 and the horizontal member 2 is fixed. Can prevent shear fracture.

  Moreover, in the seismic reinforcement structure of this embodiment, the column 1 can be reinforced in the vertical direction between the horizontal member 2 and the reinforcing wall 3 by the second fixing portion 41, whereby the column 1 is bent and broken. And shear fracture can be suppressed.

  Moreover, in the earthquake-proof reinforcement structure of this embodiment, the existing building is used rather than the case where a plywood or a gypsum board is used as the reinforcement wall 3 by using the metal sandwich panel 30 with high heat insulation and strength compared with a plywood or a gypsum board. Heat insulation and earthquake resistance can be improved. Further, the condensation in the wall can be reduced as compared with the case of using plywood or gypsum board, and the life of the building can be extended.

  Moreover, in the seismic reinforcement structure of this embodiment, the reinforcing plate 5 is attached to the column 1, and the reinforcing wall 3 is fixed to the column 1 with the fixture 8 through the reinforcing plate 5, thereby reinforcing the column 1. It can reinforce with the board 5, and it can suppress that the crack etc. of the pillar 1 generate | occur | produce by the driving of the fixing tool 8. FIG.

  Moreover, the earthquake-proof reinforcement structure of this embodiment can be constructed from the indoor side of the building without substantially peeling off existing ceiling materials and floor materials, and can be easily constructed. In addition, when attaching the reinforcing tool 4 to the part above the ceiling and the part below the floor of the pillar 1, if the ceiling or the floor gets in the way, a construction opening is formed in a part of the ceiling or the floor. May be provided. Even if it does in this way, it is not necessary to peel the existing ceiling material and floor material entirely, and it can construct easily.

  Moreover, since the seismic reinforcement structure of this embodiment can be constructed from the indoor side, it is not necessary to install a high scaffold on the outdoor side of the exterior, and labor saving and cost reduction can be improved.

  Moreover, in the seismic reinforcement structure of this embodiment, it is not necessary to remove the exterior and the earth wall 11 from a housing, and the expense which processes the removed exterior and the earth wall 11 can be held down. Moreover, generation | occurrence | production of the dust which arises when removing an exterior and the earth wall 11 can also be suppressed, and the damage to the neighboring house by dust can also be suppressed. Moreover, in the seismic reinforcement structure of this embodiment, since the earth wall 11 can remain between the pillars 1 and 1 after repair, in addition to the heat insulation and fire resistance of the earth wall 11, the heat insulation of the metal sandwich panel 30. And fire resistance can be imparted, and heat insulation and fire resistance can be improved over existing buildings.

  Moreover, the seismic reinforcement structure of this embodiment may be installed in the outdoor side of the frame of the existing building using the earth wall 11, and you may make a seismic reinforcement. In this case, after removing the wall exterior of the existing building (the wood slide 12, the lath net 13, and the mortar 14), the reinforcing wall 3, the reinforcing tool 4, and the reinforcing plate 5 are placed on the outdoor side of the housing in the same manner as described above. Install. The exterior surface of the reinforcing wall 3 after the construction is provided with an exterior finishing material such as a siding material or exterior coating via a waterproof sheet, for example.

  Moreover, in the seismic reinforcement structure of this embodiment, the reinforcement tool 4 is attached to the pillar 1 located in the indoor side of roof parts, such as a lower house, and the upper horizontal member 20 at the time of an extension repair work, By attaching the reinforcing wall 3 to a portion below the roof portion such as a roof, the earthquake-proof repair can be performed without substantially removing the roof portion such as a lower house.

  In the above description, the repair of a relatively old existing building having the earth wall 11 has been described. However, the present invention is not limited to this, and the reinforcing structure is also applied to a relatively new existing building having no earth wall 11. can do. A relatively new wall of an existing building is often formed by filling a heat insulating material such as glass wool between two adjacent pillars 1 and 1. Moreover, the exterior of such a wall is often composed of an exterior material formed of a cement board or the like. Moreover, the interior of such a wall is often formed by providing a gypsum board or plywood. For such an existing building, first, after removing the interior and exterior, the reinforcing wall 3, the reinforcing tool 4, and the reinforcing plate 5 can be attached to the housing in the same manner as described above. In this case, since the heat insulating material can remain after the renovation, it is possible to improve the earthquake resistance without greatly reducing the heat insulating property of the wall.

  The above-described seismic reinforcement structure of the present embodiment is not limited to the specifications corresponding to the winning of the ceiling and the floor. It may be a structure. In addition, the seismic reinforcement structure of the present embodiment may have a specification corresponding to a wall win for the connection between the wall and the ceiling and a floor win for the connection between the wall and the floor.

  That is, the seismic reinforcement structure of this embodiment arranges the reinforcement wall 3 in the whole part below the ceiling of the pillar 1, and the upper opening 15 from the reinforcement wall 3 hidden by the ceiling to the upper horizontal member 20. Only the structure in which the reinforcing tool 4 is arranged may be used. In this case, the lower end portion of the reinforcing wall 3 is fixed to the lower horizontal member 21 by the plurality of fixing tools 8 over the longitudinal direction.

  Moreover, the seismic reinforcement structure of this embodiment arrange | positions the reinforcement wall 3 in the whole part above a floor among the pillars 1, and is only in the lower opening part 16 from the reinforcement wall 3 hidden by the floor to the lower horizontal member 21. A structure in which the reinforcing tool 4 is arranged may be used. In this case, the upper end portion of the reinforcing wall 3 is fixed to the upper horizontal member 20 by a plurality of fixtures 8 over the longitudinal direction.

  In addition, when the pillar 1 is a pillar located in the corner, the seismic reinforcement structure of the present embodiment is attached to the inner side surface of the pillar 1 with a flat plate L-shaped reinforcing plate 5. What is necessary is just to fix the reinforcement wall 3 to the pillar 1 indirectly by fixing the side edge part of the reinforcement wall 3 to the site | part which becomes flush with a rear surface. In this case, the reinforcement plate 5 and the receiving material 6 may be connected with the receiving material 6. That is, the reinforcing wall 3 may be fixed to the reinforcing plate 5 except for the end fixed to the receiving member 6.

  Then, the earthquake-proof reinforcement structure of 2nd embodiment of this invention shown to Fig.6 (a)-(c) is demonstrated. About the same structure as the earthquake-proof reinforcement structure of 1st embodiment, the same code | symbol is attached | subjected in a figure and detailed description is abbreviate | omitted. The seismic reinforcement structure of this embodiment differs from the reinforcement structure of the first embodiment in the shape of the reinforcing tool 4.

  In the present embodiment, as shown in FIGS. 7A to 7E, the upper left reinforcing tool 400 has the second fixing portion 41 whose vertical length is longer than the vertical length of the connecting portion 43, and the second fixing portion. The lower end of 41 is located below the third fixing portion 42. That is, in the upper left reinforcing tool 400, the second fixing portion 41 has a protruding portion 46 that protrudes to the side (lower side) farther from the first fixing portion 40 than the third fixing portion 42. It is provided in contact with the pillar 1.

  In the present embodiment, a through hole 45 is formed in the protrusion 46. The left and right widths of the third fixing portion 42 are shorter than those of the first fixing portion 40, and the left end of the third fixing portion 42 is located on the right side of the left end of the first fixing portion 40. The left end of the third fixing portion 42 is located on the right side of the right end of the reinforcing portion 44.

  From the front end of the protruding portion 46, the second reinforcing portion 47 protrudes in the right direction, and the second reinforcing portion 47 is substantially perpendicular to the protruding portion 46. The left and right width of the second reinforcing portion 47 is the same as the left and right width of the reinforcing portion 44, and the second reinforcing portion 47 is parallel to the reinforcing portion 44. The upper end of the second reinforcing portion 47 is continuous with the lower end of the connecting portion 43. In the present embodiment, the lower end of the connecting portion 43 has a step so that the portion from which the third fixing portion 42 protrudes is positioned below the other portions.

  In the upper left reinforcing tool 400 of the present embodiment, the fixing device 7 is driven and the second fixing portion 41 is fixed to the column 1, and the protruding portion 46 is a portion of the column 1 where the reinforcing wall 3 is fixed. This portion can be reinforced by being fixed in contact with the inner surface (right surface).

  Moreover, in this embodiment, as shown in FIGS. 8A to 8E, the lower left reinforcing tool 402 has a second fixing portion 41 whose vertical length is longer than the vertical length of the connecting portion 43, and The upper end of the fixing portion 41 is located above the third fixing portion 42. In the lower left reinforcing member 402, the second fixing portion 41 has a protruding portion 46 that protrudes to the side (upper side) farther from the first fixing portion 40 than the third fixing portion 42. It is provided to abut.

  A plurality of through holes 45 are formed in the protruding portion 46. The plurality of through holes 45 are arranged at predetermined intervals in the vertical direction while being alternately shifted in the front-rear direction. The left and right width of the second reinforcing portion 47 is longer than the left and right width of the reinforcing portion 44, and the second reinforcing portion 47 is parallel to the reinforcing portion 44. The lower end of the second reinforcing portion 47 is continuous with the upper end of the connecting portion 43. In the present embodiment, the upper end of the connecting portion 43 has a step so that the portion from which the third fixing portion 42 protrudes is positioned above the other portions. Further, the front-rear width of the third fixing portion 42 is shorter than the front-rear width of the first fixing portion 40 and the front-rear width of the second fixing portion 41.

In the lower left reinforcing tool 402 described above, the protruding portion 46 is the inner surface of the portion of the column 1 where the reinforcing wall 3 is fixed in a state where the fixing device 7 is driven and the second fixing portion 41 is fixed to the column 1. This part can be reinforced by being fixed in contact with (right surface).
The upper left reinforcing member 400 and the lower left reinforcing member 402, and the reinforcing members 401 and 403 having symmetrical shapes to them, two adjacent pillars 1 and 1, two upper and lower horizontal members 2 and 2, and a reinforcing wall. 3, when an earthquake occurs, not only the part facing the upper opening 15 and the lower opening 16 but also the front of the reinforcing wall 3, only the load applied in the direction from the pillar 1 to each reinforcing tool 4. In addition, the load applied from the reinforcing tool 4 toward the column 1 can be received by each reinforcing tool 4, and the earthquake resistance of the building frame can be improved.

  Further, in the earthquake-proof reinforcement structure of the present invention, the second fixing portion 41 makes the column 1 not only a portion between the horizontal member 2 and the reinforcing wall 3 but also a portion ahead of the third fixing portion 42 (that is, the reinforcing wall 3). Can be reinforced, and the bending failure and shear failure of the column 1 can be further suppressed than the seismic reinforcement structure of the first embodiment.

  In the above-described second embodiment, the reinforcing tool 4 in which the through hole 45 is formed in the protruding portion 46 has been described. However, the reinforcing tool 4 does not have the through hole 45 formed in the protruding portion 46. May be. Even in this case, the pillar 1 is made to contact the horizontal member 2 and the reinforcing wall by bringing the protruding portion 46 of the second fixing portion 41 into contact with the portion ahead of the third fixing portion 42 (that is, the portion overlapping the reinforcing wall 3). 3 can be reinforced to some extent not only between the three portions but also the portion ahead of the third fixing portion 42 (that is, the portion overlapping the reinforcing wall 3). It can be suppressed more than the seismic reinforcement structure.

  Moreover, although the 1st and 2nd embodiment mentioned above demonstrated the example which formed each reinforcement tool 4 so that it might become the up-down length corresponding to the existing ceiling position or the existing floor position, each reinforcement tool 4 is constant. It may be of the vertical length. That is, each reinforcement tool 4 should just be the up-down length in which the position of the receiving material 6 fixed to each reinforcement tool 4 is located below a ceiling, or located above a floor. In this case, the position of the reinforcing wall 3 fixed to the receiving member 6 is shifted from the upper end portion or the lower end portion, or between the reinforcing wall 3 fixed to the receiving member 6 and the ceiling, or fixed to the receiving member 6. What is necessary is just to install the board | plate material for filling a clearance gap between the reinforcement wall 3 and floor which are made.

  Moreover, although the 1st and 2nd embodiment mentioned above demonstrated the example provided so that it could fix to the reinforcement wall 3 via the receiving material 6 in the 3rd fixing | fixed part 42 of the reinforcement tool 4, The third fixing portion 42 may be provided so as to be directly fixed to the reinforcing wall 3 without the receiving material 6 interposed therebetween.

  Summarizing the above, the seismic reinforcement structure of the present invention, as in the first and second embodiments, spans between two adjacent columns 1 and 1 and the two columns 1 and 1 and the horizontal member 2. It is a seismic reinforcement structure for reinforcing a building having a frame or its frame. The seismic strengthening structure of the present invention includes a reinforcing wall 3 that is fixed over two pillars 1 and 1 at a position spaced from the horizontal member 2 in the vertical direction, and the horizontal member 2 and the reinforcing wall 3. And a reinforcing tool 4 attached between the two. The reinforcing tool 4 includes a first fixing portion 40 fixed to the horizontal member 2, a second fixing portion 41 fixed to the pillar 1, and a third fixing portion 42 fixed to the reinforcing wall 3.

  With the configuration as described above, the seismic reinforcement structure of the present invention can reinforce a portion of the pillar 1 between the ceiling and the floor by the reinforcing wall 3 and is fixed to the reinforcing wall 3. The reinforcing tool 4 can reinforce, for example, a part above the ceiling and a part below the floor of the pillar 1 and the horizontal member 2. Therefore, the seismic reinforcement structure of the present invention can reinforce the building pillar 1 and the horizontal member 2 in the vertical direction, and can improve the earthquake resistance of the building. Further, in the seismic reinforcement structure of the present invention, the second fixing portion 41 is fixed to the column 1 and the first fixing portion 40 is fixed to the horizontal member 2, so that the joint portion between the column 1 and the horizontal member 2 is fixed. Shear fracture can be suppressed.

  In the earthquake-proof reinforcement structure of the present invention, as in the first and second embodiments, the second fixing portion 41 is in contact with the column 1 between the horizontal member 2 and the reinforcing wall 3 in the vertical direction. It is preferable to be provided.

  With the configuration as described above, the seismic reinforcement structure of the present invention can reinforce the column 1 in the vertical direction between the horizontal member 2 and the reinforcing wall 3 by the second fixing portion 41. Thus, bending failure and shear failure of the column 1 can be suppressed.

  Moreover, the seismic reinforcement structure of this invention has the protrusion part 46 which protrudes in the direction which leaves | separates from the 1st fixing | fixed part 40 rather than the 3rd fixing | fixed part 42 like the 2nd embodiment, It is preferable that the protrusion 46 is also provided so as to contact the pillar 1.

  With the structure as described above, in the earthquake-proof reinforcement structure of the present invention, the second fixing portion 41 makes the pillar 1 not only the portion between the horizontal member 2 and the reinforcing wall 3 but also the third fixing portion 42. It is possible to reinforce up to the previous part (that is, the part overlapping the reinforcing wall 3). Thereby, in the earthquake-proof reinforcement structure of this invention, the bending fracture | rupture and shear fracture | rupture of the pillar 1 can further be suppressed.

  Moreover, in the seismic reinforcement structure of this invention, it is preferable that the reinforcement wall 3 is the metal sandwich panel 30 which filled the core material 33 between the two metal shells 31 and 32. FIG.

  Thus, in the seismic reinforcement structure of the present invention, the use of the metal sandwich panel 30 having higher heat insulation and strength than the plywood or gypsum board as the reinforcing wall 3 makes it possible to use the existing building as compared with the case where plywood or gypsum board is used. Heat insulation and earthquake resistance can be improved. Further, the condensation in the wall can be reduced as compared with the case of using plywood or gypsum board, and the life of the building can be extended.

  Although the present invention has been described based on the embodiments shown in the accompanying drawings, the present invention is not limited to the above-described embodiments, and appropriate design changes can be made within the intended scope of the present invention. It is.

DESCRIPTION OF SYMBOLS 1 Pillar 2 Horizontal member 3 Reinforcement wall 4 Reinforcement tool 30 Metal sandwich panel 31 Metal outer skin 32 Metal outer skin 33 Core 40 First fixing part 41 Second fixing part 42 Third fixing part 46 Protruding part

Claims (4)

A structure having two adjacent pillars and a horizontal member spanned between the two pillars, or an earthquake-proof reinforcement structure for reinforcing the frame,
A reinforcing wall that is bridged and fixed to the two pillars at a position spaced from the horizontal member in the vertical direction;
It said horizontal member and mounted between said reinforcing wall, and a brace that will be integrated with the reinforcing wall,
The reinforcing tool includes a first fixing portion fixed to the horizontal member, a second fixing portion fixed to the pillar, and a third fixing portion fixed to the reinforcing wall. Seismic reinforcement structure.   2. The earthquake-proof reinforcement structure according to claim 1, wherein the second fixing portion is provided between the horizontal member and the reinforcing wall so as to abut on the pillar in a vertical direction.   The second fixing portion has a protruding portion that protrudes in a direction away from the first fixing portion than the third fixing portion, and the protruding portion is provided so as to contact the pillar. The earthquake-proof reinforcement structure according to claim 2.   The seismic reinforcement structure according to any one of claims 1 to 3, wherein the reinforcing wall is a metal sandwich panel in which a core material is filled between two metal shells.

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