JP4123160B2 - Seismic reinforcement device for openings - Google Patents

Description

  The present invention relates to an opening seismic reinforcement device incorporated in an opening in order to improve earthquake resistance, for example, in a wooden house frame construction method or the like.

Conventionally, as the above-described opening seismic reinforcement device, for example, as shown in the first embodiment of FIG. 1 (FIG. 5), an opening seismic reinforcement device is used to reduce the eccentric load caused by the shift of the shaft center. The method of installing in the inside is used, and the thing which suppressed the deformation | transformation at the time of the occurrence of an earthquake is disclosed by increasing the total wall amount of an opening part.
JP 2002-276050 A

  However, in the opening seismic reinforcement device of Patent Document 1, particularly when the construction is performed on an opening having a large opening area, the reinforcing bars (bars) are thickened or the number of reinforcing bars is increased in order to ensure the required strength. There was a problem that no other measures could be considered and this would be costly. Thus, it has been a conventional problem to solve such problems while ensuring a predetermined strength.

The invention according to claim 1 includes one brace material, the other brace material, and a reinforcing material, and the one brace material and the other brace material cross in an X shape and are laid on left and right columns. Yes, each brace material has at least one small cross-sectional area part in the longitudinal direction with the crossing position removed, and the reinforcing material is a combination of two reinforcing members each having a symmetrical comb shape. A side surface portion that is disposed with a gap from the small cross-sectional area and that has a longitudinal end attached to the side surface of the brace material and fixed by screwing, and the upper and lower surfaces of the brace material are substantially flush with each other. It has an end ridge to be formed, a contact ridge that contacts the side surface of the small cross-sectional area portion, and a covering ridge that contacts the upper and lower surfaces of the small cross-sectional area portion, and allows elongation of the brace material, It is characterized by covering the periphery of the small cross-sectional area and preventing buckling of the small cross-sectional area.

The invention according to claim 2 is provided with one brace material, the other brace material, and a reinforcing material, and the one brace material and the other brace material are crossed in an X shape and are erected on left and right columns. At the same time , each brace material has at least two small cross-sectional areas on either the left or right side of the crossing position or only on either side of the crossing position. It is provided in the small cross-sectional area part, and while allowing the bristle material to extend, it covers the small cross-sectional area part and prevents buckling of the small cross-sectional area part.

In the opening seismic reinforcement device according to claim 1 of the present invention, when the frame structure is subjected to a strong interlayer displacement in the inter-column direction at the time of the earthquake, a strong tensile force is applied to one of the brace materials crossed in an X shape. Acts, and a strong compressive force acts on the other brace material. At this time, in one brace material to which a strong tensile force acts, the elongation corresponding to the tensile force occurs particularly in the small cross-sectional area portion, but the reinforcing material is provided in the small cross-sectional area portion to reinforce the small cross-sectional area portion. In addition, since the bristle material is allowed to be stretched, the stretch can be freely accommodated. In addition, in the other brace material where a strong compressive force acts, if a strong compressive load exceeding the proof stress is applied, particularly in a small cross-sectional area, the small cross-sectional area reaches plastic deformation and absorbs this force. In this case, because the reinforcing material covers the small cross-sectional area to prevent buckling, the small cross-sectional area is reached even if it reaches the plastic deformation region due to a strong compressive load exceeding the proof stress. The portion does not buckle and can maintain the function as a brace material. In other words, the opening seismic reinforcement device according to claim 1 of the present invention secures the strength for preventing the collapse of the frame structure even when the opening receives a large interlayer displacement force in the inter-column direction at the opening. It has the effect of being able to. And since a small cross-sectional area part is covered with the reinforcing material, an external appearance is not impaired greatly. The reinforcing member has a contact ridge that contacts the side surface of the small cross-sectional area portion and a covering ridge that contacts the upper and lower surfaces of the small cross-sectional area portion. It can be reliably prevented , and the side part of the reinforcing material is attached to the side surface of the brace material near the small cross-sectional area part and screwed and fixed, thereby preventing the buckling deformation of the small cross-sectional area part. Work is strengthened more. In addition, since the reinforcing material is configured by combining two reinforcing members each having a vertically symmetrical comb shape, the reinforcing material can be easily attached. Moreover, the reinforcing material is not conspicuous because the end protrusions of the reinforcing material are substantially flush with the upper and lower surfaces of the brace material.

In the opening seismic reinforcement apparatus according to claim 2 of the present invention, in addition to the effect of claim 1, since one brace material and the other brace material are connected at the crossing position, each brace material is connected to the connecting portion. Is added as a fixed portion, the buckling length is halved, and therefore the buckling resistance is increased. Further, by connecting the one brace material and the other brace material at the crossing position, it is possible to enhance the resistance to twisting in the out-of-plane direction between the left and right columns. Therefore, the necessary cross-sectional area of the brace material can be set smaller (the brace material is thinner). In addition, each brace material is provided with at least two small cross-sectional areas on either the left or right side of the crossover position or only on either side of the crossover position, so that it can be reinforced even in either the top, bottom, left or right half of the opening. It is especially effective when you do not want to show the material mounting part. At the same time, the side with two small cross-sectional areas can provide even greater seismic strength. The required cross-sectional area can be further reduced, i.e., a thinner brace material can be used, thus further reducing material costs.

  In the opening seismic reinforcement device according to the present invention, an extruded shape made of an aluminum alloy can be used for the brace material and the reinforcing material.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a front view and a cross-sectional view of a state in which the opening seismic reinforcement device 1 according to the first embodiment of the present invention is attached between the shaft columns 2 and 2. FIG. 2 is an enlarged view of a portion A and a portion B shown in the cross-sectional view of FIG. 1 and shows a state where the pillar 2 and the brace members 5 and 5 arranged so as to cross in an X shape are fixed. FIG. 3 shows the details of the brace material 5 and the reinforcing material 6 attached to the small cross-sectional area 51 provided in the brace material 5 by enlarging the C part of the brace material 5 shown in the front view of FIG.

  As shown in FIG. 1, the opening seismic reinforcement device 1 of the first embodiment of the present invention includes fixing brackets 91, 92, 93, 94 that are composed of left and right columns 2, 2, an upper beam 8 </ b> A, and a lower beam 8 </ b> B. The left and right base members 3, 3 and the left and right base members 3, 3 respectively fixed to the left and right columns 2, 2 with fixing screws 95, 95,. The left and right mounting members 4 and 4 and the brace members 5 and 5 arranged in an X shape between the left and right columns 2 and 2, respectively, are provided. In this case, the pair of brace members 5 and 5 provided in this way are screwed and fixed to the mounting members 4 and 4 fixed to the left and right columns 2 and 2 as described above, and the upper beam between the left and right columns 2 and 2 is fixed. A case where three sets are fixed between 8A and the lower beam 8B is shown.

  The brace material 5 used in the opening reinforcing apparatus 1 of the first embodiment has a substantially rectangular cross-sectional shape with a triple hollow portion as shown in the cross-sectional view along the line DD in FIG. In addition, an aluminum alloy shape member is used in which the outer surface of the middle hollow portion is recessed to form a thin portion 5a. As shown in FIG. 2, the brace members 5 and 5 arranged in an X-shape are connected and fixed by bolts and nuts 73 with the spacers 73a interposed therebetween so that the crossing positions are inserted in the indoor and outdoor directions. As shown in FIG. 3, a small cross-sectional area portion 51 that has been subjected to partial cut processing for cutting off the hollow portions at both ends, leaving only the hollow portions including the thin portions 5a at positions close to the left and right end portions of the brace members 5 and 5 on both sides. It is provided. The reinforcing member 6 is a combination of two reinforcing members 6a and 6a, and a position where it does not interfere with the small cross-sectional area 51 of the brace material 5 is fixed with a fixing tool 74. As shown in the cross-sectional view taken along the line EE in FIG. The periphery of the area part 51 is covered and reinforced. The length of the reinforcing material 6 is slightly shorter than the length of the small cross-sectional area provided by partially cutting the brace material 5, and the outer peripheral surface of the reinforcing material 6 is provided substantially the same as the outer peripheral surface of the brace material 5. is there.

  Since the opening reinforcing device 1 according to the first embodiment of the present invention has the above-described structure, when a lateral displacement force between the upper beam 8A and the lower beam 8B is generated between the upper beam 8A and the lower beam 8B, the X-shaped structure is formed. A tensile force acts on one of the brace members 5 arranged, and a compressive force acts on the other brace member 5, and the influence of these actions received a large interlayer displacement force exceeding the proof stress of the breath member 5. In some cases, the small cross-sectional area 51 extends in one brace material 5 and works in the direction leading to fracture, and in the other brace material 5, the small cross-sectional area 51 acts in a direction leading to buckling deformation. At this time, the reinforcing member 6 that covers the small cross-sectional area 51 of one of the brace members 5 on which the tensile force acts as described above covers the small cross-sectional area 51 that is a part of the longitudinal direction of the brace material 5. The brace material 5 is allowed to stretch and is allowed to stretch, so that the brace material 5 extends corresponding to the pulling force. Further, in the other brace material 5 on which the compressive force acts, the reinforcing member 6 covers almost the entire circumference of the small cross-sectional area portion 51 of the brace material 5, so that the small cross-sectional area portion 51 is strongly compressed and leads to plastic deformation. Even if it tries to bend, the reinforcing material 6 covers the small cross-sectional area 51 and functions to prevent buckling deformation, and even if the small cross-sectional area 51 is compressed, the end face in the longitudinal direction of the reinforcing material 6 is the brace material. 5 is in contact with the partially cut end face and does not shrink any further. Therefore, even if a large interlayer displacement force as described above is generated between the upper beam 8A and the lower beam 8B of the frame structure, it is small. A slight interlayer deformation force of the cross-sectional area 51 is absorbed to absorb a larger interlayer displacement force, and the reinforcing material 6 covering the small cross-sectional area 51 can prevent the small cross-sectional area 51 from buckling and endure. Therefore, the seismic reinforcement effect can be demonstrated. That. In addition, since the small cross-sectional area part 51 is a thing which is hard to raise | generate a buckling so that it arrange | positions in the position nearer to an end part, if it arrange | positions in the position as close as possible to an end part as long as there is no trouble, it will have high strength as a brace material. Can be secured.

In addition, since the brace members 5 and 5 are connected and fixed by bolts and nuts 73 inserted in the indoor and outdoor directions with the spacer 73a interposed therebetween at the crossing position, the brace members are constrained at the intermediate positions. Compared with the case where the 5 and 5 are not connected, the buckling length of the brace material 5 is halved and the buckling strength is increased, and in addition, the opening portion of the seismic reinforcing device 1 is twisted in the indoor and outdoor directions. Therefore, the brace material 5 having a smaller cross section (small buckling strength) may be used to secure a predetermined strength, so that the material cost can be reduced and at the same time the brace material 5 Since the small cross-sectional area 51 is covered with the reinforcing material 6, a clean appearance can be obtained. The effect is also obtained.

  Next, the opening part reinforcement apparatus 10 of 2nd embodiment of this invention is demonstrated. In the opening reinforcing device 10 of the second embodiment, the opening reinforcing device 1 of the first embodiment shown in FIGS. 1 and 2 is used as the opening reinforcing device 10, the breath material 5 is used as the breath material 50, and the reinforcing material 6 is used as the reinforcing material 6. Each of the reinforcing members 60 is replaced, that is, another form of the reinforcing portion of the brace material is illustrated. FIG. 4 shows the structural main part of the opening reinforcing device 10 of the second embodiment, and corresponds to FIG. 3 showing the structural main part of the opening reinforcing device 1 in the first embodiment.

  The brace material 50 of the second embodiment is of the same shape as the brace material 5 of the first embodiment as shown in the sectional view taken along the line FF of FIG. An aluminum alloy extruded shape is used in which the outer surface is recessed to form a thin portion 50a. The brace material 50 is provided with a small cross-sectional area portion 510 that has been subjected to partial cut processing for cutting away the hollow portions at both ends, leaving only the hollow portion including the thin-walled portion 50a at a position close to the end portion. The reinforcing member 60 is a combination of two reinforcing members 60a and 60a, which are screwed and fixed to the brace material 50, covering the small cross-sectional area 510 and being attached to a part of the longitudinal direction of the brace material 50. is there. Reinforcing members 60a and 60a forming the reinforcing member 60 have a comb-like shape that is vertically symmetrical, and as shown in the front view of FIG. 4 and the HH line sectional view, It is provided on the outer side so as to adhere to the side surface of the brace material 50, and when attached to the brace material 50 so as to cover the small cross-sectional area 510, the end in the longitudinal direction adheres to the side surface of the brace material 50. A side surface portion 610 that can be screwed and fixed, and end protrusions 620 and 620 that form substantially the same surface as the upper and lower surfaces of the brace material 50 when attached, and the side surface portions 610 and 610 and the end protrusions. 620 and 620 form a substantially rectangular cross section around the small cross sectional area 510. Further, the reinforcing member 60a has a contact protrusion 630 that contacts the side surface of the thin portion 50a (small cross-sectional area portion 510) of the brace material 50, as shown in the sectional view taken along the line GG and the sectional view taken along the line HH in FIG. 630, and covering ridges 640 and 640 that contact and cover the upper and lower surfaces of the small cross-sectional area 510. Further, the reinforcing member 60a is cut at both longitudinal ends of the end protrusions 620 and 620 and the covering protrusions 640 and 640 by partial cut processing as shown in the HH sectional view and the plan view, and the uncut portions are breathed. The partial cut portion is provided so as to be attached to the side surface in the vicinity of the small cross-sectional area 510 of the brace material 50 so as to be shorter than the longitudinal dimension of the small cross-sectional area 510 of the material 50. The brace material 50 is provided with a round hole 520 in one of the thin wall portions 50a, 50a in the vicinity of both ends in the longitudinal direction of the small cross-sectional area 510, and a long hole 530 provided in the longitudinal direction of the brace material 50 on the other side. The member 60a is provided with round holes in the side portions 610 and 610 at both ends in the longitudinal direction and through the fixing screws (bolts and nuts) 740, and through the round holes 520 and the long holes 530 provided in the thin portions 50a and 50a, respectively. The brace material 50 is fixed with screws.

  Since the opening seismic reinforcement device 10 of the second embodiment of the present invention is provided as described above, the top of the shaft structure is the same as described in the case of the opening reinforcement device 1 of the first embodiment. When a lateral displacement force between the beam 8A and the lower beam 8B is generated, a tensile force acts on one of the brace members 50 to extend the small cross-sectional area portion 510 and work in the direction leading to the breakage. In the material 50, a compressive force acts and the small cross-sectional area 510 is compressed and works in a direction leading to buckling deformation. At this time, one of the brace members 50 to which the tensile force acts is stretched corresponding to the tensile force particularly applied to the small cross-sectional area portion 510, but as described above, the contact protrusion 630 of the reinforcing member 60. And the covering protrusion 640 covers the small cross-sectional area 510, and both ends of the side surface portion 610 of the reinforcing member 60 are attached to the side surface of the brace material 50, and the one round hole 520 provided in the thin portion 50a and the other Since both are fixed by fixing screws 740 and 740 through which the long holes 530 are respectively inserted, the elongation of the small cross-sectional area 510 of the brace material 50 is allowed by the above-described long holes. Further, in the other brace material 50 on which the compressive force is applied, the contact protrusion 630 and the covering protrusion 640 of the reinforcing member 60 cover almost the entire circumference of the small cross-sectional area 510 of the brace material 50, so that the small cross-sectional area portion Even if 510 is strongly compressed to cause plastic deformation, the reinforcing member 60 functions to prevent buckling deformation of the small cross-sectional area 510, and the small cross-sectional area 510 is compressed and contracted to cause plastic deformation. However, as described above, the uncut portion obtained by partially cutting the end protrusion 620 and the covering protrusion 640 of the reinforcing member 60 is provided shorter than the longitudinal dimension of the small cross-sectional area 510 of the brace material 50. Therefore, the shrinkage is allowed and the compressive force can be absorbed, and in the opening seismic reinforcement device of the second embodiment, the reinforcing member 60 has a smaller cross-sectional area than that of the first embodiment. Only around part 510 In addition, since the side surface portion 610 is also attached and fixed to the side surface of the brace material 50 in the vicinity of the small cross-sectional area portion 510, the function of the reinforcing member 60 for preventing buckling deformation of the small cross-sectional area portion 510 is further strengthened. It is what has become. Therefore, the opening seismic reinforcement device 10 of the second embodiment of the present invention has the same seismic reinforcement effect as the opening seismic reinforcement device 1 of the first embodiment described above, and in addition, has a stronger buckling resistance. It is what you have.

  Next, the opening part reinforcement apparatus 11 of 3rd embodiment of this invention is demonstrated using FIG. 5 and FIG. In the third embodiment, the attachment structure to the frame structure part composed of columns and beams is not different from the first embodiment and the second embodiment described above, and is not shown in FIG. Similarly to the first embodiment and the second embodiment described above, the opening reinforcing device 11 of the third embodiment is configured by fixing both ends to the left and right mounting members 4, 4 fixed to the left and right base members 3, 3. The brace members 50 and 50 are arranged so as to cross each other in a letter shape, and the brace member 50 and the reinforcing member 60 having the same shape as those used in the second embodiment are used as shown in FIGS. Yes. As shown in FIG. 5, there are two main differences between the form of the reinforcing part of the brace material 50 of the third embodiment and the form of the reinforcing part of the second embodiment shown in FIG. In the second embodiment, the positions of the round hole 520 and the long hole 530 provided in the brace material 50 for fixing the reinforcing material 60 are provided in the thin wall portion 50a, whereas in the third embodiment, By providing the thick holes 50b with the positions of the round holes 521 and the long holes 531 provided in the brace material 50, the brace material 50 can be fixed with fixing screws (bolts and nuts) 740 to reinforce the small cross-sectional area 510 of the brace material 50. In this way, the resistance to the twisting of the brace material is increased. In addition, the second difference is that the reinforcing member 60a covering the periphery to prevent buckling of the small cross-sectional area 510, and the portion where the covering protrusion 640 of the 60a is left uncut is also a presser screw (bolt / nut) 750. It is that the buckling prevention effect was further strengthened by fixing with.

  Further, as shown in the plan view of FIG. 6, the opening reinforcing device 11 of the third embodiment is configured by arranging one brace material 50A and the other brace material 50B on the same plane as shown in FIG. As shown in the cross-sectional view along line JJ, in order to avoid interference at the crossing position, one brace material 50A is a threading material, and the other brace material 50B is cut at the crossing position, and the other brace material 50B is cut. , 50B are connected by a connecting reinforcing material 65 and connected by bolts and nuts. The connecting reinforcing member 65 connects the other brace members 50B and 50B that have been cut, and sandwiches one breath member 50A in the indoor / outdoor direction. The one brace member 50A and the connecting reinforcing member 65 are in the indoor / outdoor direction. It is fixed with a crossing position fixing screw 760 that penetrates through.

  Since the opening seismic reinforcement device 11 of the third embodiment of the present invention is provided as described above, the small cross-sectional area portion of each of the brace members 50, 50 against the lateral displacement force received in the event of an earthquake or the like. The tensile force and the compressive force received by each of 510, 510, 510, 510 are absorbed in the same manner as described in the case of the opening reinforcing device 1 of the first embodiment and the opening reinforcing device 10 of the second embodiment. As a result, a seismic reinforcement effect is imparted. In addition, since the one brace material 50A and the other brace material 50B that cross each other are arranged in the same plane and the crossing positions are connected to each other via the connection auxiliary material 65, the connection of the respective brace materials 50A and 50B. The effect that the buckling length is halved by adding the portion as a fixed portion, and therefore the buckling resistance is further increased, is obtained as in the first and second embodiments. And in the opening part seismic reinforcement apparatus 11 of this 3rd embodiment, with respect to the case of 2nd embodiment as previously demonstrated, the holding screw 750 also to the part which left the covering protrusion 640 of the reinforcement members 60a and 60a cut off. The effect of buckling prevention of the small cross-sectional area 50a is further strengthened by the addition of the fixing by means of, and in addition, the screwing fixing position of the reinforcing member 60, that is, the round hole 521 and the long hole 531 are breathed. By providing the thick wall portion 50b of the material 50, the reinforcing effect of the small cross-sectional area portion 50a is further strengthened, and in addition to the deformation force in the left-right direction, a torsional force in the indoor / outdoor direction is applied. However, the device is a more reliable opening reinforcing device in which torsional resistance is further strengthened.

  Fig.7 (a) represents the earthquake-proof reinforcement apparatus 1,10 or 11 of said 1st embodiment-3rd embodiment of this invention by a typical pattern, FIG.7 (b)-FIG.7 ( f) represents the fourth embodiment to the eighth embodiment other than the above-described embodiment of the seismic reinforcement apparatus of the present invention in the same schematic pattern. In each drawing, in the opening seismic reinforcement device 1 to which the brace members 5A and 5B arranged and fixed in an X shape are crossed and fixed between the frame columns 2 and 2, respectively, the upper beam 8A and the lower beam 8B of the frame structure are provided. In this way, an inter-layer displacement force in the left-right direction is generated, that is, for example, as shown in the figure, the upper beam 8A of the frame structure generates a displacement force indicated by a left arrow, and the lower beam 8B moves to the right. When the displacement force indicated by the arrow is generated, a tensile force acts on one of the brace members 5A arranged in an X shape, and a compressive force acts on the other brace member 5B. Each of the brace members 5A, 5B is provided with a small cross-sectional area 51, 51 (see FIG. 3) and a reinforcing member 6, 6 for covering and reinforcing the same, respectively, and a tensile force or a compressive force in the direction of the arrow shown in FIG. It will be. Also, when brace materials are connected at crossover positions (a, c, e, f), they are indicated by a small arrow for the convenience of drawing, but a tensile force or a compressive force acts in the direction of the arrow in the drawing. It becomes. However, in FIG. 7, each arrow indicates the direction in which the force is applied as a reference, and does not indicate the magnitude of the force. Hereinafter, based on FIG. 7, the opening part earthquake-proof reinforcement apparatus 1 of 4th embodiment-8th embodiment is explained in full detail.

  FIG. 7 (b) showing the opening seismic reinforcement device 1 of the fourth embodiment shows the brace materials 5A and 5B from FIG. 7 (a) showing the seismic reinforcement device 1 or 10 of the first embodiment or the second embodiment. This is a brace material that is independent from each other by eliminating the connection of the crossing positions. In this case, the reinforcing members 6 and 6 are attached by providing the same small cross-sectional area portions 51 and 51 as the first embodiment or the second embodiment at positions close to both ends of each of the brace materials 5A and 5B. In the brace material 5B in which the compressive force from the left and right columns 2 and 2 acts, the same compressive force acts on the reinforcing members 6 and 6 at both ends from the left and right, and the compression exceeds the proof stress of the small cross-sectional areas 51 and 51 on both sides. When the force is received, the small cross-sectional area portion 51 undergoes plastic deformation and absorbs the compressive force as described in the first embodiment, and therefore, from one small cross-sectional area portion 51 to the other small cross-sectional area portion. The compressive force transmitted to 51 is reduced by the amount of compressive force absorbed by its own plastic deformation, and the seismic strength of the opening seismic reinforcement device 1 is improved. Further, since the small cross-sectional area portions 51, 51 of the brace members 5A, 5B are provided on both sides of the crossover position, the length of each small cross-sectional area portion 51 can be shortened, and accordingly the reinforcing material 6 Since the length of the reinforcing member 6 can be small and the strength of the reinforcing member 6 can be small, the attaching method of the reinforcing member can be simplified, and the cost for the reinforcing member can be suppressed. However, in the case of this fourth embodiment, since the brace materials 5A and 5B are not connected at the crossing position, the buckling length of the brace material is the case of FIG. 7 (a) showing the first embodiment or the second embodiment. However, the overall strength of the opening reinforcing device is inferior, but the construction is easy as long as the crossing positions are not connected.

  FIG. 7C showing the opening seismic reinforcement device 1 of the fifth embodiment is a brace material 5A, compared to FIG. 7A showing the seismic reinforcement device 1 or 10 of the first embodiment or the second embodiment. The small cross-sectional area 51 and the reinforcing member 6 are provided only on one side of the connecting portion at the crossing position 5B. In this case, each of the brace members 5A and 5B is provided with a small cross-sectional area 51 similar to that of the first embodiment or the second embodiment at a position close to the end portion only on the lower side of the crossing position, and the reinforcing members 6 and 6 are provided. A small cross-sectional area is not provided above the crossover position. Therefore, for example, in the brace material 5B on which the compressive force from the left and right columns 2 and 2 acts, the small cross-sectional area portion 51 provided on the lower side of the crossing position receives the compressive force exceeding the proof stress, as described in the first embodiment. Similarly, the small cross-sectional area 51 causes plastic deformation and absorbs the compressive force, and no change occurs on the side where the small cross-sectional area above the crossing position is not provided. The seismic performance is inferior compared to the form, but the structure is simple with only one small cross-sectional area 51, and there is no part to which the reinforcing material 6 is attached on the upper side of the opening. This is particularly effective when the portion of the reinforcing material 6 attached to 5 is not desired to be shown.

  FIG. 7 (d) showing the opening seismic reinforcement device 1 of the sixth embodiment is only a position near the lower ends of the brace members 5A and 5B as compared with FIG. 7 (b) showing the seismic reinforcement device 1 of the fourth embodiment. The small cross-sectional area 51 and the reinforcing material 6 are provided only one at a time, and the cross positions of the brace materials 5A and 5B are not connected. In this case, since the crossing brace materials are not connected to each other, and only one small cross-sectional area 51 is provided in the brace material, the opening seismic reinforcement device of the first to fifth embodiments described above. Compared to the above, the seismic strength is the weakest than any of the above, but it is the simplest structurally and easy to construct, and as in the case of the fifth embodiment, the upper side of the opening is reinforced. Since the material 6 is not provided, it is particularly effective when only the upper half of the opening does not want to show the portion of the reinforcing material 6 attached to the brace material 5.

  FIG. 7 (e) showing the opening seismic reinforcement device 1 of the seventh embodiment is below the crossover position of the brace members 5A and 5B with respect to FIG. 7 (c) showing the seismic reinforcement device 1 of the fifth embodiment. Further, the small cross-sectional area 51 and the reinforcing material 6 are additionally provided one by one at a position close to the crossing position of the brace materials 5A and 5B. In this case, a similar small cross-sectional area 51 is provided at a position near the lower end of the crossover position of each brace material 5A, 5B, and the reinforcing members 6, 6 are attached, and the upper side of the crossover position is small. No cross-sectional area is provided. Therefore, for example, in the brace material 5B on which the compressive force from the left and right columns 2 and 2 acts, if the two small cross-sectional area portions 51 and 51 provided on the lower side of the crossing position receive compressive force exceeding the proof stress, the first In the same manner as described in the embodiment, the small cross-sectional area portions 51 and 51 cause plastic deformation and absorb the compressive force, and can impart a stronger seismic reinforcement strength. Is the same as that of the fourth embodiment in which the brace members 5A and 5B are provided in two locations, and the first cross-section is not changed on the side where the small cross-sectional area above the crossover position is not provided. The strongest seismic performance is obtained as compared with the opening reinforcement devices of the sixth to sixth embodiments. Therefore, when trying to obtain a predetermined seismic performance, the brace material can be made the thinnest, and therefore the material cost is reduced. Can be lowered, As in the case of the opening reinforcing device of the fifth and sixth embodiments, the reinforcing material 6 is not provided on the upper side of the opening, so that only the upper half of the opening is the portion of the reinforcing material 6 attached to the brace material 5. This is especially effective when you do not want to show

  FIG. 7 (f) showing the opening seismic reinforcement device 1 of the eighth embodiment is above the crossover position of the brace members 5 </ b> A and 5 </ b> B in addition to FIG. 7 (e) showing the seismic reinforcement device 1 of the seventh embodiment. In the same manner as in the lower part, two small cross-sectional areas are provided. In this case, the brace members 5A and 5B connected to each other are provided with four small cross-sectional area portions 51, 51, 51, 51, two on each side of the crossover position. In the brace material 5B on which the compressive force from 2 acts, the same compressive force acts on the four reinforcing members 6, 6, 6, 6 from the left and right, respectively, and the proof stress of the small cross-sectional areas 51, 51, 51, 51 respectively When the compression force exceeding 1 is received, as described in the first embodiment, the small cross-sectional area portions 51, 51, 51, 51 cause plastic deformation and absorb the compression force. The compressive force transmitted between the four small cross-sectional areas 51, 51, 51, 51, two on each side of the fixed position connected to the brace material is absorbed by the plastic deformation of itself. It will be reduced by the amount, and the opening seismic reinforcement The earthquake resistance of a 1 are those that is further improved, it can be said that especially suitable for Retrofit of the large opening.

  The present invention is not limited to the embodiment described above, and various modifications can be made without departing from the spirit of the present invention. For example, in each of the above-described embodiments, the method of fixing the brace material to the left and right columns is not limited to the above-described method, and the base material or the base material fixed to the column without using either the base material or the attachment material It may be fixed to the mounting material, or the brace material may be directly fixed to the column. The shape of the breath material and the shape and arrangement of the small cross-sectional area, the shape of the reinforcing material, and the mounting and fixing method are not limited to the above-described embodiments. For example, a fixing method other than screwing, such as fitting, can be used for the reinforcing material. In the first embodiment, the second embodiment, the fifth embodiment, the seventh embodiment, and the eighth embodiment, the fixing method for connecting the crossing positions of the brace materials is limited to the fixing method using the bolts and nuts described above. Is not to be done.

It is a whole attachment explanatory view of the opening part earthquake proofing reinforcement device of a first embodiment. It is explanatory drawing which expanded the A section (a pillar and a base material, the connection fixed part of a mounting material) and B section (brace material crossing position) of the opening part seismic reinforcement apparatus of 1st embodiment shown in FIG. It is detailed explanatory drawing which expanded the C section (the edge part of a breath material, and a small cross-sectional area part) of the opening part seismic reinforcement apparatus of 1st embodiment shown in FIG. It is detailed explanatory drawing which expanded the edge part and small cross-sectional area part (reinforcement part) of the breath material of the opening part seismic reinforcement apparatus of 2nd embodiment. It is detailed explanatory drawing which expanded the edge part and small cross-sectional area part (reinforcement part) of the breath material of the opening part earthquake proof reinforcement apparatus of 3rd embodiment. It is sectional drawing explaining the cross-sectional state of the front view showing the opening part seismic reinforcement apparatus of 3rd embodiment, a top view, and a brace material. It is explanatory drawing which pattern-ized and showed the attachment state of the breath material and reinforcement material of the opening part seismic reinforcement apparatus of 1st embodiment-8th embodiment.

Explanation of symbols

1, 10, 11 Opening Seismic Reinforcement Device 2 Pillar 3 Base Material 4 Mounting Material 5, 50 Breath Material 51, 510 Small Section Area 6, 60 Reinforcing Material

Claims (2)

One brace material and the other brace material and reinforcing material,
One brace material and the other brace material are crossed in an X shape and are erected on the left and right pillars,
Each brace material has at least one small cross-sectional area part in the longitudinal direction with the crossing position removed,
The reinforcing material is a combination of two reinforcing members each having a comb-like shape that is symmetrical in the vertical direction. The reinforcing material is arranged with a gap from the small cross-sectional area, and the end in the longitudinal direction is attached to the side surface of the brace material. A side surface portion that is fixed by screwing, an end protrusion that forms substantially the same surface as the upper and lower surfaces of the brace material, a contact protrusion that contacts the side surface of the small cross-sectional area portion, and an upper and lower surface of the small cross-sectional area portion A seismic reinforcement with an opening, characterized in that it has a covering ridge that abuts against it, allows the breath material to stretch, covers the periphery of the small cross-sectional area, and prevents buckling of the small cross-sectional area apparatus. One brace material and the other brace material and reinforcing material,
The one breath material and the other breath material Yes connects the erection Tare Rutotomoni intersecting position on the left and right pillars and cross in an X shape,
Each brace material has at least two small cross-sectional areas on either the left or right side of the crossover position, or only on either side of the crossover position,
A seismic reinforcement device for openings which is provided in a small cross-sectional area part and allows the expansion of the brace material and covers the small cross-sectional area part to prevent buckling of the small cross-sectional area part .

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