JP5967642B2 - Building reinforcement structure - Google Patents

Description

  The present invention relates to a reinforcing structure for a building, and more particularly to a reinforcing structure for increasing the strength and rigidity of a building against horizontal forces such as earthquakes and strong winds.

  Conventionally, as a seismic reinforcement structure for a building, a structure for reinforcing a pillar of an existing building has been proposed (see, for example, Patent Document 1). This reinforcing structure surrounds the outer periphery of the column over the entire circumference with a plurality of box-shaped bodies whose insides are storage spaces, and makes the plate material on the back constituting each box-shaped body face the column side of the column. The box-like bodies are connected together, filled with uncured curable material between the back plate and the column side, and brought into close contact with each other. Each of the gap between the lower surface and the gap between the plate surface and the floor surface of the bottom plate member in the box-like body is also filled with uncured curable material and brought into close contact with each other.

JP 2009-197552 A

  However, like the conventional reinforcing structure described in Patent Document 1, a filling material such as mortar is filled between the box-shaped plate material and the column side surface, the lower surface of the beam, and the floor surface. A sufficient reinforcing effect cannot be expected simply by bringing the box-shaped body into contact with the building frame. That is, when a building frame (column or beam) is damaged by an earthquake or the like, a large deformation angle is generated in the building and each member. Therefore, it is necessary to bear the stress while the reinforcing material follows this deformation. Regardless, in the conventional reinforcing structure, only the box-shaped body is provided via the filler, and the integrity of the building frame and the box-shaped body is impaired by the filler being cracked or peeled off. It is. For this reason, the box-shaped body cannot follow the deformation of the building frame and cannot bear the stress, so that a reinforcing effect against a large earthquake cannot be expected.

  Moreover, in the conventional reinforcement structure, the entire circumference of the column is surrounded by an integral box-like body having a height dimension from the floor to the bottom of the beam, so the floor height of the building (the height under the beam) and the dimensions of the column Accordingly, a box-shaped body must be manufactured, which makes it difficult to share the box-shaped body and increases the cost. Furthermore, for an independent column, a box-like body can be installed around the entire circumference, but the column side, such as a column with a wall or a column to which a fitting is attached, can be installed. If there is no space all around the box, the box-shaped body cannot be installed, and the buildings to which the reinforcing structure can be applied are limited. In addition, since the box-shaped body manufactured in one piece must be installed inside the building, it takes time and effort to carry it, carry it into the building, install it, and so on, and the workability of the reinforcement work is significantly reduced. There is also a problem.

  Accordingly, an object of the present invention is to provide a reinforcing structure for a building that can be constructed easily and at low cost, can be applied to various buildings, and can realize a sufficient reinforcing effect.

In order to achieve the above object, the building reinforcing structure according to claim 1 is a building reinforcing structure having a vertical member and a horizontal member joined to each other, and the vertical member is a steel column. The horizontal member is a steel beam, the pillar and the beam are rigidly connected via a joint portion to form a rigid frame, and a plurality of reinforcing members stacked vertically along the vertical member; A first fixing means for fixing at least a part of the plurality of reinforcing members to the vertical member, a second fixing means for fixing the reinforcing members stacked on the top and bottom to each other, and a position directly below the horizontal member And a third fixing means for fixing the reinforcing member to the horizontal member, the reinforcing member being continuous with the first side surface portion along the side surface of the vertical member and the upper edge of the first side surface portion. An upper surface portion extending in a direction away from the vertical member; A lower surface portion extending in a direction away from the vertical member continuously from a lower end edge of one side surface portion, and a second side surface portion extending in parallel with the first side surface portion by connecting the upper surface portion and the edges of the lower surface portion. And a steel member formed in an overall rectangular hollow shape , wherein the first side surface portion and the vertical member are the first fixing means by bolt-nut joining, wire welding, or stud joining. A fourth fixing means that is fixed directly, and the plurality of reinforcing members are stacked vertically along substantially the entire length of the vertical member, and the reinforcing member positioned immediately above the horizontal member is fixed to the horizontal member; And among the plurality of reinforcing members that are configured to include at least one of the fifth fixing means that fixes the reinforcing member positioned directly above the foundation or the floor slab to the foundation or the floor slab, Before positioned below A plurality of reinforcing members located in a height range from the lower side to the upper side of the horizontal member, the foundation or the floor slab to the horizontal member located on the upper side, are provided with other reinforcements on the second side surface thereof. The member is not fixed and the opposite side of the vertical member is opened .

  Here, as a building to which the reinforcing structure of the present invention is applied, its use (house, store, commercial building, factory, warehouse, etc.), scale (building area, volume, number of floors, etc.), structural type (wooden, steel structure) , Reinforced concrete structure, etc.) and structural type (frame structure, ramen structure, wall structure, etc.) are not limited, and the reinforcing structure of the present invention can be applied to various buildings. In the present invention, the vertical member means a member that extends in the vertical direction such as a column or a wall, and the horizontal member means a member that extends in the horizontal direction such as a beam, floor, or foundation. However, the vertical direction and the horizontal direction here include directions having a slight inclination.

The building reinforcing structure according to claim 2 is the building reinforcing structure according to claim 1 , wherein the plurality of reinforcing members are the upper surface portion, the lower surface portion, and the first and second side surface portions. It is characterized by comprising a first type having an inner panel in which four sides are fixed to each inner surface, and a second type having no inner panel.

The building reinforcing structure according to claim 3 is the building reinforcing structure according to claim 2 , wherein the first type reinforcing member is in the vicinity of a joint where the vertical member and the horizontal member are joined. The second type reinforcing member is provided at a position separated from the joint portion.

The building reinforcing structure according to claim 4 is the building reinforcing structure according to claim 2 or 3 , wherein the inner panel is made of a damping material that plasticizes by a predetermined shear force and absorbs hysteresis energy. It is characterized by that.

The building reinforcing structure according to claim 5 is the building reinforcing structure according to any one of claims 1 to 4 , wherein the plurality of reinforcing members include width dimensions of the upper surface portion and the lower surface portion. A square type having substantially the same height dimension of the first and second side surface parts, a width dimension of the upper surface part and the lower surface part, and a height dimension of the first and second side surface parts. It is characterized by comprising different rectangular types.

The building reinforcing structure according to claim 6 is the building reinforcing structure according to any one of claims 1 to 5 , wherein the reinforcing member along the vertical member is sandwiched between the reinforcing members on the opposite side of the vertical member. One or a plurality of adjacent reinforcing members provided adjacent to each other are further provided, and the adjacent reinforcing members are formed in an overall rectangular hollow shape common to the reinforcing members.

The building reinforcing structure according to claim 7 is the building reinforcing structure according to claim 6 , wherein the adjacent reinforcing members are arranged in a plurality of stages and in a plurality of rows, and the reinforcing members along the vertical member The adjacent reinforcing members adjacent to each other vertically and horizontally, and the adjacent reinforcing member and the adjacent reinforcing member are fixed to each other by the second fixing means. The adjacent reinforcing member located immediately below the horizontal member and the horizontal member are fixed by the third fixing means.

  According to the first aspect of the invention, the plurality of reinforcing members are stacked vertically along the vertical member, the reinforcing member is fixed to the vertical member by the first fixing means, and the upper and lower members are fixed by the second fixing means. By fixing the reinforcing members to each other and fixing the reinforcing member to the lower side of the horizontal member by the third fixing means, each reinforcing member, the vertical member and the horizontal member are securely fixed, and the reinforcing members are also securely connected. It can fix and can improve the integrity of the laminated | stacked several reinforcement member, a vertical member, and a horizontal member. Therefore, a plurality of reinforcing members can follow the vertical member and the horizontal member deformed by an earthquake or the like, and stress can be applied to the reinforcing member, so that a sufficient reinforcing effect can be obtained. Further, by laminating a plurality of reinforcing members vertically, the size of each reinforcing member can be reduced, and the shape and dimensions can be made common by modularization. Therefore, a common reinforcing member can be used for various buildings having different floor heights, structural types, and structural types, and manufacturing costs and installation costs can be suppressed.

  Furthermore, since the reinforcing member has a first side surface portion, an upper surface portion, a lower surface portion, and a second side surface portion and is formed in a generally rectangular hollow shape, the reinforcing member itself can be reduced in weight and stacked. It is possible to easily carry out operations such as carrying, carrying in, and setting, such as carrying, carrying an appropriate number of pieces into the building, or installing each reinforcing member by an operator. In addition, the first side surface portion is opposed to the vertical member, the upper surface portion is opposed to the horizontal member, and the reinforcing members can be fixed to each other with the upper surface portion and the lower surface portion opposed to each other and using the hollow portion. Thus, the fixing work of the first to third fixing means can be easily performed, and the workability of the installation work can be further improved. In addition, the reinforcing member does not need to be installed around the entire circumference of the vertical member, and may be stacked along one side surface of the vertical member, or may be stacked along two or more side surfaces. Also in this case, since the reinforcing effect can be obtained as described above, the degree of freedom of installation can be increased, and a flexible reinforcing structure can be realized for the vertical member under various peripheral conditions.

Moreover , the reinforcement effect with respect to a vertical member can further be heightened by installing a reinforcement member up and down along the substantially full length of a vertical member. Then, by fixing the reinforcing member on the upper side of the horizontal member by the fourth fixing means, or by fixing the reinforcing member to the foundation or the floor slab by the fifth fixing means, further improving the integrity with the building frame. Can do. In addition, since the reinforcing member is laminated along substantially the entire length of the vertical member, even if the vertical member breaks due to an earthquake or the like, and the vertical member and the horizontal member are disconnected, the upper side The horizontal member and the load of the floor slab can be supported by the reinforcing member, and the layer collapse can be prevented.

According to the invention described in claim 2 , the first-type reinforcing member having the inner panel and the second-type reinforcing member not having the inner panel are provided. It is possible to reinforce efficiently by properly using the types, and it is possible to enhance the reinforcing effect while suppressing the cost.

According to the invention described in claim 3 , the first type reinforcing member is used in the vicinity of the joint portion between the vertical member and the horizontal member, and the second type reinforcing member is used at a position separated from the joint portion. Thus, it is possible to load the first-type reinforcing member with the stress of the joint where deformation and stress act greatly during an earthquake, and the reinforcing effect can be further improved. On the other hand, installation cost can be suppressed by using a 2nd type reinforcement member in the site | part away from the junction part which a deformation | transformation and stress are not so large.

According to the invention described in claim 4 , the internal panel is made of the damping material, and the internal panel is plasticized by a predetermined shearing force to absorb the hysteresis energy, thereby improving the energy absorption performance of the entire building. Can be increased. Here, as a damping material, it had a low yield strength and excellent ductility (deformation performance) steel material for dampers such as ultra-soft steel and recrystallization power of the structure as compared with general steel materials for building structures. Various materials such as metal materials such as lead, viscous bodies and viscoelastic bodies can be used.

According to the invention described in claim 5 , by providing a square type reinforcing member and a rectangular type reinforcing member having different width and height dimensions, the floor height of the building and the height of the horizontal member are provided. By using a mixture of both types of reinforcing members as appropriate according to the position and the like, it is possible to apply a reinforcing member that is common to various buildings. Specifically, if a plurality of square type reinforcing members are prepared as general-purpose members and rectangular type reinforcing members are used at positions where they are half-sized due to floor height etc., the production cost of the square type reinforcing members will be increased. Can be flexibly adapted to various installation conditions.

According to the invention described in claim 6 , the reinforcing effect can be further enhanced by installing the adjacent reinforcing member adjacent to the reinforcing member. Moreover, since the adjacent reinforcing member is formed in an overall rectangular hollow shape common to the reinforcing member, it is possible to easily perform a fixing operation when the adjacent reinforcing member is installed side by side with the reinforcing member.

According to the seventh aspect of the present invention, the adjacent reinforcing members are arranged in a plurality of steps and in a plurality of rows, and the number of steps is reduced as the row is further away from the reinforcing member. Adjacent reinforcing members can be arranged in the shape of a haunch that is inclined in the direction of. Then, the adjacent reinforcing members adjacent to each other and the adjacent reinforcing members and the adjacent reinforcing members are fixed by the same second fixing means as described above, and the adjacent reinforcing members are disposed below the horizontal member by the same third fixing means as described above. By fixing, the fixing structure can be made common, and these reinforcing members can be integrated with the vertical member and the horizontal member. Therefore, the vertical member and the horizontal member are connected via the reinforcing member stacked vertically and the adjacent reinforcing member in the shape of a haunch, and stress can be transmitted between the vertical member and the horizontal member. Therefore, the reinforcing effect can be further improved.

It is a shaft assembly figure showing a building using a reinforcement structure concerning one embodiment of the present invention. It is a side view which shows a part of framework of the said building, and the said reinforcement structure. It is the side view and sectional drawing which expand and show the said reinforcement structure. It is sectional drawing which shows the lower part of the said reinforcement structure. It is sectional drawing which shows the reinforcement member used for the said reinforcement structure. It is a perspective view which shows the 1st type reinforcement member among the said reinforcement members. It is a perspective view which shows the 2nd type reinforcement member among the said reinforcement members. It is a side view which shows the modification of the said reinforcement structure. It is a side view which shows the other modification of the said reinforcement structure.

  Hereinafter, the building reinforcement structure which concerns on one Embodiment of this invention is demonstrated based on FIGS. The building 1 to which the reinforcing structure of the present embodiment is applied is an existing building such as a steel warehouse or an office building, for example, a two-story building body 2 and a concrete foundation. 3. As shown in FIG. 1, the building 1 has a pure ramen structure in the span direction (left and right direction in the figure), and a bracing structure having a plurality of vertical braces (not shown) in the crossing direction perpendicular thereto. Yes. In this embodiment, the proof strength of the column 4 as the vertical member and the beam 5 as the horizontal member constituting the frame in the span direction is insufficient, or the joint strength of the joint 6 where the column 4 and the beam 5 are joined. For example, the reinforcing structure 10 for supplementing the horizontal strength against seismic force and wind pressure acting in the spanning direction when there is a shortage of wind is illustrated.

  As shown in FIGS. 2 to 4, the foundation 3 is formed to have a raised portion 3 </ b> A that rises from the ground surface GL and an increased hitting portion 3 </ b> B that is increased along the side surface of the raised portion 3 </ b> A. . The column 4 is made of an H-shaped steel having a pair of flanges 4A and a web 4B, and is provided with its strong axis directed in the spanning direction, and a column base is wound around the upright portion 3A, and an anchor bolt (not shown) It is being fixed to foundation 3 via etc. The beam 5 is made of H-shaped steel having a pair of flanges 5A and 5B and a web 5C, and is bolted to the column 4 via a gusset plate 4C welded and fixed to the flange 4A of the column 4. The joint portion 6 is a rectangular region surrounded by the upper and lower sides and the right and left sides between the flange 4A of the column 4 and between the flanges 5A and 5B of the beam 5. The beam 7 in the column direction is joined to the joint portion 6. ing. Further, an appropriate number of stiffener plates 4D are welded and fixed across the flange 4A and the web 4B on the top and bottom of the joint 6 and above the foundation 3 on the column 4, and on the left and right of the joint 6 on the beam 5. An appropriate number of stiffener plates 5D are fixed by welding over the flanges 5A and 5B and the web 5C. Although not described in the present embodiment, a deck plate is placed on the upper side of the beam 5, and a concrete floor slab having a predetermined thickness is provided on the upper surface of the deck plate.

  The reinforcing structure 10 includes a plurality of reinforcing members 11 and 12 that are stacked vertically along the flange 4 </ b> A of the column 4. The reinforcing member 11 is of a square type having substantially the same width, height and depth, and the reinforcing member 11 includes a first reinforcing member 11A as a first type reinforcing member and a second type of reinforcing member 11. The reinforcing member 12 includes a second reinforcing member 11B serving as a reinforcing member, and the reinforcing member 12 is a rectangular reinforcing reinforcing member having a different width, depth, and height. 11 A of 1st reinforcement members are provided in the upper and lower sides of the beam 5 which is the vicinity of the junction part 6, and the upper side of the foundation 3, and the 2nd reinforcement member 11B is provided in the intermediate part of the pillar 4 spaced apart from the junction part 6. FIG. . Further, the reinforcing member 12 as the adjusting reinforcing member is a half-size dimension that cannot be divided by simply laminating the plurality of reinforcing members 11 depending on the height from the foundation 3 to the lower surface of the beam 5 and the height between the beams 5 on the upper and lower floors. The reinforcing member 12 is formed to have a height dimension including a half-end dimension. Accordingly, it is sufficient that one reinforcing member 12 is provided on each floor (between the foundation 3 and the beam 5 or between the upper and lower beams 5), and the reinforcing member 12 is omitted when a half-sized dimension is not obtained. And the reinforcement structure 10 may be comprised only with the some reinforcement member 11. FIG.

  Further, as shown in FIG. 3, the reinforcing structure 10 fixes the first fixing means 13 that fixes the reinforcing members 11 and 12 to the flange 4 </ b> A of the column 4 and the reinforcing members 11 and 12 that are stacked vertically. The second fixing means 14, the third fixing means 15 for fixing the reinforcing member 11 positioned immediately below the beam 5 to the lower flange 5B of the beam 5, and the reinforcing member 11 positioned immediately above the beam 5 are connected to the upper flange of the beam 5. A fourth fixing means 16 for fixing to 5A and a fifth fixing means 17 (see FIGS. 2 and 4) for fixing the reinforcing member 11 positioned immediately above the foundation 3 to the foundation 3 are provided. Here, the case where all the reinforcing members 11 and 12 stacked in the vertical direction are fixed to the column 4 by the first fixing means 13 is shown, but the upper and lower reinforcing members 11 and 12 are connected by the second fixing means 14. All of the reinforcing members 11 and 12 may not be fixed to the pillar 4 as long as they are fixed to each other. Further, the fifth fixing means 17 can be used not only for fixing the reinforcing member 11 to the foundation 3 but also for fixing the reinforcing member 11 to the floor slab.

  As shown in FIGS. 5 to 7, the reinforcing members 11 and 12 are connected to the first side surface portion 21 along the flange 4 </ b> A of the column 4 and the direction away from the column 4 continuously from the upper end edge of the first side surface portion 21. An upper surface portion 22 that extends, a lower surface portion 23 that extends continuously from the lower end edge of the first side surface portion 21 in a direction away from the pillar 4, and the edges of the upper surface portion 22 and the lower surface portion 23 are connected to each other. And a second side surface portion 24 extending in parallel with each other. Such reinforcing members 11 and 12 may be formed by bending a steel plate and welding the edges to each other, may be formed by cutting a steel pipe, and further, a steel plate for each surface portion. May be formed by welding together. Further, the first reinforcing member 11A and the second reinforcing member 11B have a width dimension B that is the distance between the first side surface portion 21 and the second side surface portion 24 and a high height that is the distance between the upper surface portion 22 and the lower surface portion 23. The length H and the depth dimension D orthogonal to these are formed in an overall cube shape formed substantially the same. On the other hand, the reinforcing member 12 has a width dimension B and a depth dimension D that are the same as the reinforcing member 11, and only the height dimension H is larger than the reinforcing member 11. In addition, the first reinforcing member 11 </ b> A has an inner panel 25 that is fixed around each of the first and second side surfaces 21, 24 and the inner surfaces of the upper surface 22 and the lower surface 23.

  As shown in FIGS. 3A and 3B, the first fixing means 13 includes four bolts 13A penetrating the flange 4A of the column 4 and the first side surface portion 21 of the reinforcing members 11 and 12, and these And a nut 13B screwed to each bolt 13A. The first side surface portion 21 of the reinforcing members 11 and 12 is formed with an insertion hole 21A (see FIGS. 5 to 7) through which the bolt 13A is inserted. The second fixing means 14 includes four bolts 14A that pass through the upper surface portion 22 and the lower surface portion 23 of the reinforcing members 11 and 12, and nuts 14B that are screwed into these bolts 14A. Yes. And the insertion holes 22A and 23A (refer FIGS. 5-7) which penetrate the volt | bolt 14A are formed in the upper surface part 22 and the lower surface part 23 of the reinforcement members 11 and 12, respectively. The third fixing means 15 includes four bolts 15A that penetrate the lower flange 5B of the beam 5 and the upper surface portion 22 (insertion hole 22A) of the reinforcing member 11, and nuts 15B that are screwed into these bolts 15A. It is comprised. The fourth fixing means 16 includes four bolts 16A that penetrate the upper flange 5A of the beam 5 and the lower surface portion 23 (insertion hole 23A) of the reinforcing member 11, and nuts 16B that are screwed into these bolts 16A. It is comprised. As shown in FIGS. 2 and 4, the fifth fixing means 17 includes four anchor bolts 17 </ b> A embedded in the increased hitting portion 3 </ b> B of the foundation 3 and penetrating the lower surface portion 23 (insertion hole 23 </ b> A) of the reinforcing member 11, And a nut 17B screwed to each of these anchor bolts 17A.

  In this embodiment, the reinforcing members 11 and 12 are formed by cutting, for example, a general structural square steel pipe (STKR400) having a plate thickness of 12 mm, a width B of 250 mm, and a depth D. It is set to 250 mm. The reinforcing member 11 has a height dimension H set to 250 mm, and the reinforcing member 12 has a height dimension H exceeding 250 mm and less than 500 mm. Furthermore, the inner panel 25 of the first reinforcing member 11A has a low yield point strength (for example, 80 to 250 N / mm 2) and excellent ductility (for example, an elongation performance of about 30 to 50%). Yield point steel, steel material called damper steel, etc.). The bolts 13A, 14A, 15A, and 16A are, for example, medium bolts (M16), and the anchor bolts 17A are, for example, 320 mm long building structure anchor bolts (ABR400, M16). It should be noted that the types and sizes of the reinforcing members 11 and 12 and the types and diameters of the bolts 13A, 14A, 15A, and 16A and the anchor bolt 17A are not limited to those described above, and can be appropriately selected. It is self-explanatory. Further, the inner panel 25 is not limited to ultra mild steel or the like, and may be formed of general structural steel (SS400 or the like) or welded structural steel (SM400A to C or the like). You may form from the raw material.

  As a construction procedure of the reinforcing structure 10 described above, first, in the foundation 3, concrete is added to the side surface of the upright portion 3A to form the increased hitting portion 3B, and the anchor bolt 17A is installed inside the increased hitting portion 3B. Be buried. Also, through holes (not shown) for inserting bolts 13A, 15A, and 16A are formed in the flange 4A of the column 4 and the flanges 5A and 5B of the beam 5, respectively. Next, after inserting the tip of the anchor bolt 17 </ b> A into the insertion hole 23 </ b> A of the reinforcing member 11, the nut 17 </ b> B is screwed into the anchor bolt 17 </ b> A, and the reinforcing member 11 positioned immediately above the foundation 3 is fixed to the foundation 3. Further, after the upper surface portion 22 of the reinforcing member 11 located immediately below the beam 5 is along the lower flange 5B of the beam 5, the bolt 15A is inserted through the insertion hole of the lower flange 5B and the insertion hole 22A of the upper surface portion 22. The nut 15B is screwed to the bolt 15A, and the reinforcing member 11 is fixed to the lower flange 5B. Similarly, the lower surface portion 23 of the reinforcing member 11 positioned immediately above the beam 5 is placed along the upper flange 5A of the beam 5, and the bolt 16A is inserted into the insertion hole of the upper flange 5A and the insertion hole 23A of the lower surface portion 23. Then, the nut 16B is screwed into the bolt 16A, and the reinforcing member 11 is fixed to the upper flange 5A.

  Next, the other reinforcing members 11 and 12 are sequentially attached between the upper and lower reinforcing members 11 fixed as described above. First, another reinforcing member 11 (or reinforcing member 12) is overlaid on the lower reinforcing member 11, or another reinforcing member 11 (or reinforcing member 12) is placed under the upper reinforcing member 11. After that, the bolt 14A is inserted into the insertion holes 22A and 23A of the upper surface portion 22 and the lower surface portion 23, and then the nut 14B is screwed to the bolt 14A to fix the reinforcing members 11 adjacent to each other vertically. Further, in each reinforcing member 11 (or reinforcing member 12) and column 4, bolt 13A is inserted through insertion hole 21A of first side surface portion 21 and insertion hole of flange 4A, and then nut 13B is screwed into bolt 13A. Then, the reinforcing member 11 (or the reinforcing member 12) is fixed to the column 4. By repeatedly performing the above fixing operation, the reinforcing members 11 and 12 are stacked up and down, and the stacked reinforcing members 11 and 12 are fixed to the column 4, the beam 5, and the foundation 3. Construction is complete. If necessary, between the foundation 3 and the lower surface portion 23 of the reinforcing member 11, between the flanges 5A and 5B of the beam 5 and the upper surface portion 22 or the lower surface portion 23 of the reinforcing member 11, and further, A gap such as a non-shrink mortar may be filled in a gap such as between the flange 4A and the first side surface portion 21 of the reinforcing members 11 and 12, or an adhesive may be filled and bonded.

  According to the construction procedure of such a reinforcing structure 10, the plurality of reinforcing members 11, 12 are stacked one above the other to reduce the size of the individual reinforcing members 11, 12 and to form and dimension by modularization. Can be shared. Accordingly, the common reinforcing member 11 is used for the structural type of the building 1 and the dimensions of each part (the dimension between the upper and lower beams 5), and the reinforcing member 12 that is an adjustment reinforcing member for the half-sized dimension. It can adjust, and the manufacturing cost and installation cost of the reinforcement members 11 and 12 can be suppressed. Furthermore, since the reinforcing members 11 and 12 have the first side surface portion 21, the upper surface portion 22, the lower surface portion 23, and the second side surface portion 24 and are formed in an overall rectangular hollow shape, the reinforcing members 11 and 12 themselves are In addition to being able to reduce the weight, it is possible to easily carry out the work of carrying, carrying in, and setting, such as stacking and carrying, or carrying an appropriate number of pieces into the building. In addition, since the hollow portion of the reinforcing members 11 and 12 can be used to perform the fixing work to the column 4, the beam 5 and the foundation 3 and the fixing work of the reinforcing members 11 and 12, the work can be easily performed. Workability can be improved. Further, the first to fourth fixing means 13 to 16 are constituted by bolts 13A, 14A, 15A and 16A and nuts 13B, 14B, 15B and 16B, and the fifth fixing means 17 is constituted by anchor bolts 17A and nuts 17B. Therefore, since it is not necessary to use fire such as welding when constructing the reinforcing structure 10, on-site curing and the like can be simplified and construction in the existing building 1 can be facilitated.

  Next, as a function of the reinforcing structure 10, when the building body 2 is deformed due to an earthquake or the like, that is, when bending / shearing deformation occurs in the pillar 4 as a vertical member and the beam 5 as a horizontal member, The plurality of reinforcing members 11 and 12 fixed to the beam 5 follow the deformation and bear the stress, thereby supporting the load of the building body 2 and suppressing the deformation. At this time, the first reinforcing member 11A having the inner panel 25 is provided around the joint portion 6 where stress and deformation are particularly likely to concentrate, so that the first follow-up of the deformation of the column 4, the beam 5 and the joint portion 6 is achieved. A shearing force can be applied to the inner panel 25 of the reinforcing member 11A, and the stress transmission around the joint 6 can be smoothed. Further, since the inner panel 25 is made of ultra-soft steel as a damping material that plasticizes by a predetermined shear force and absorbs hysteresis energy, it can exhibit a damping force due to energy absorption according to the burdened shear force. It is possible to improve the seismic performance of the building 1.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

  For example, the reinforcing structure of the present invention is not limited to the reinforcing members 11 and 12 attached in a line along the pillar 4 as in the reinforcing structure 10 described in the above embodiment, but as shown in FIG. 4 may be provided with the adjacent reinforcing member 18 adjacent to the opposite side across the reinforcing member 11 along the line 4, and the intermediate member of the column 4 and the reinforcing member of the column base are omitted as shown in FIG. The thing provided with the adjacent reinforcement member 18 may be sufficient.

  Specifically, the reinforcing structure 10A shown in FIG. 8 includes the same reinforcing members 11 and 12 as in the above embodiment, and a plurality of (for example, three) adjacent reinforcing members provided adjacent to the reinforcing member 11 at the column head. 18. The adjacent reinforcing member 18 is formed of a common member with the first reinforcing member 11A, and a first row in which two adjacent reinforcing members 18 adjacent to the reinforcing member 11 are arranged one above the other, and 1 adjacent to the first row. The second row in which the adjacent reinforcing members 18 are provided is configured in a haunch shape in which the number of steps is reduced toward the side away from the column 4. The adjacent reinforcing members 18 in the first row are fixed to the reinforcing member 11 by the second fixing means 14 (bolts 14A and nuts 14B), and the upper and lower adjacent reinforcing members 18 are also fixed by the second fixing means 14. The upper adjacent reinforcing member 18 is fixed to the lower flange 5B of the beam 5 by the third fixing means 15 (bolt 15A and nut 15B). Further, the adjacent reinforcing member 18 in the second row is fixed to the adjacent reinforcing member 18 in the first row by the second fixing means 14 (bolt 14A and nut 14B), and third to the lower flange 5B of the beam 5. It is fixed with fixing means 15 (bolt 15A and nut 15B).

  On the other hand, the reinforcing structure 10B shown in FIG. 9 is composed of the three reinforcing members 11 at the column head and the adjacent reinforcing member 18 in the reinforcing structure 10A in FIG. The reinforcing members 11 and 12 are not fixed to each other, and the reinforcing member 11 and the adjacent reinforcing member 18 are provided only on the lower side of the beam 5 in the vicinity of the joint portion 6. According to the reinforcing structures 10A and 10B as described above, by fixing the adjacent reinforcing members 18 arranged in a haunch shape adjacent to the reinforcing members 11 along the columns 4, the columns 4, the beams 5, and the joint portions 6 are fixed. They can be firmly connected to each other, and the stress that can be transmitted between these members can be increased to further enhance the reinforcing effect. And by fixing the adjacent reinforcement member 18 by the 2nd fixing means 14 and the 3rd fixing means 15, a fixing structure can be made common and workability | operativity can be made favorable. Furthermore, the internal space of the building 1 can be used effectively by omitting the reinforcing members 11 and 12 from the middle part of the column 4 and the column base as in the reinforcing structure 10B.

  Moreover, in the said embodiment, although the case where the reinforcement structure 10, 10A, 10B was applied to existing buildings, such as a warehouse and an office building, was illustrated, the reinforcement structure of this invention is not only an existing building but a newly built building. Is also applicable. Further, the reinforcing structure of the present invention can be applied not only in the span direction of the building 1 but also in the column direction, and may be applied in both the span direction and the column direction. Moreover, in the said embodiment, although the form which provided the reinforcement structure 10, 10A, 10B along the pillar 4 in all the floors from the lower floor to the upper floor of the building main body 2 was illustrated, not only this but reinforcement is carried out. The reinforcement structure should just be provided along the appropriate number of pillars 4 in the required floor. Further, the vertical member along which the reinforcing members 11 and 12 are arranged is not limited to the pillar 4 but may be a wall or the like, and the horizontal member is not limited to the beam 5 but may be a floor slab or the like.

  Moreover, in the said embodiment, as the reinforcing members 11 and 12, the 1st side surface part 21, the upper surface part 22, the lower surface part 23, and the 2nd side surface part 24 comprised four sides, and the other two surfaces were opened, or the cube shape or Although a rectangular parallelepiped shape was illustrated, the present invention is not limited to this, and the shape of the reinforcing member may be one in which at least one of the other two surfaces is closed. Furthermore, the reinforcing members 11 and 12 are not limited to those made of steel as in the above-described embodiment, and the material thereof is not particularly limited, such as resin, concrete, or ceramics. Moreover, in the said embodiment, although bolt and nut joining was employ | adopted as the 1st-4th fixing means 13-16, not only this but arbitrary fixing means, such as wire welding and a stud joining, are employable. . Here, as wire welding, a fixing means for forming a through hole in the reinforcing member and fixing the inner periphery of the through hole and a fixing target member (column, beam, other reinforcing member, etc.) by welding. It is. The stud joining is a fixing means for fixing a stud to an object to be fixed and inserting the stud into an insertion hole of a reinforcing member and screwing a nut.

  Furthermore, in the said embodiment, although the case where the structure classification of the building main body was a steel structure was illustrated, it is good also as a reinforcement object not only in this but a reinforced concrete structure or a wooden building. When the vertical and horizontal members of the building are reinforced concrete, the fixing means is a structure in which an anchor material such as a chemical anchor is driven into the housing, the anchor material is inserted into the insertion hole of the reinforcing member, and the nut is screwed together May be adopted. When the building is made of wood, the fixed hardware may be fixed to a column or beam by screws or the like, and the fixed hardware and the reinforcing member may be fixed with bolts or the like. Furthermore, when installing a reinforcing member across a vertical member or a horizontal member, a penetrating member such as an anchor bolt may be passed through the vertical member or the horizontal member, and the reinforcing member may be fixed by the penetrating member.

1 Building 3 Foundation 4 Pillar (Vertical Member)
5 Beam (horizontal member)
6 Junction 10, 10A, 10B Reinforcement structure 11, 12 Reinforcement member 11A First reinforcement member (first type reinforcement member)
11B Second reinforcing member (second type reinforcing member)
DESCRIPTION OF SYMBOLS 13 1st fixing means 14 2nd fixing means 15 3rd fixing means 16 4th fixing means 17 5th fixing means 18 Adjacent reinforcement member 21 1st side surface part 22 Upper surface part 23 Lower surface part 24 2nd side surface part 25 Internal panel

Claims (7)

A building reinforcing structure having a vertical member and a horizontal member joined to each other,
The vertical member is a steel column, the horizontal member is a steel beam, and the column and the beam are rigidly connected to each other via a joint portion to constitute a frame structure,
A plurality of reinforcing members stacked vertically along the vertical member;
First fixing means for fixing at least a part of the plurality of reinforcing members to the vertical member;
A second fixing means for fixing the reinforcing members stacked on the top and bottom to each other;
A third fixing means for fixing the reinforcing member located immediately below the horizontal member to the horizontal member;
The reinforcing member includes a first side surface portion along a side surface of the vertical member, an upper surface portion extending in a direction away from the vertical member continuously to an upper end edge of the first side surface portion, and a lower end edge of the first side surface portion. A lower surface portion that extends continuously in a direction away from the vertical member, and a second side surface portion that connects the edges of the upper surface portion and the lower surface portion and extends parallel to the first side surface portion. It is a steel member formed in an overall rectangular hollow shape , and the first side surface portion and the vertical member are directly fixed by bolt-nut joining, wire welding, or stud joining as the first fixing means,
The plurality of reinforcing members are stacked vertically along substantially the entire length of the vertical member,
Fourth fixing means for fixing the reinforcing member positioned immediately above the horizontal member to the horizontal member, and fifth fixing means for fixing the reinforcing member positioned immediately above the foundation or floor slab to the foundation or floor slab is configured to include at least one of,
Among the plurality of reinforcing members stacked vertically, the horizontal member located on the lower side, the foundation or the floor slab to the horizontal member located on the upper side, from the lower side to the majority height range The plurality of reinforcing members positioned are the reinforcing structure of a building, wherein other reinforcing members are not fixed to the second side surface portion and the opposite side of the vertical member is opened . The plurality of reinforcing members include a first type member having an inner panel whose four sides are fixed to each inner surface of the upper surface portion, the lower surface portion, and the first and second side surface portions, and the inner panel. The building reinforcing structure according to claim 1, comprising: a second type that does not. The first type reinforcing member is provided in the vicinity of a joint portion where the vertical member and the horizontal member are joined, and the second type reinforcing member is provided at a position separated from the joint portion. The building reinforcing structure according to claim 2 , wherein The reinforcing structure for a building according to claim 2 or 3 , wherein the inner panel is made of a damping material that is plasticized by a predetermined shear force and absorbs hysteresis energy. The plurality of reinforcing members are of a square type in which the width dimension of the upper surface part and the lower surface part and the height dimension of the first and second side surface parts are substantially the same, and the upper surface part and the lower surface part The building according to any one of claims 1 to 4 , comprising a rectangular type having a width dimension and a height type of the first and second side portions different from each other. Reinforcement structure. One or more adjacent reinforcing members provided adjacent to the opposite side of the vertical member across the reinforcing member along the vertical member;
The said adjacent reinforcement member is formed in the whole rectangular hollow shape common to the said reinforcement member, The reinforcement structure of the building as described in any one of Claims 1-5 characterized by the above-mentioned. The adjacent reinforcing members are arranged in a plurality of rows and a plurality of rows, and are composed of a plurality of rows having a reduced number of steps as a row away from the reinforcing member along the vertical member,
The adjacent reinforcing members adjacent to each other vertically and horizontally, and the adjacent reinforcing member and the adjacent reinforcing member are fixed to each other by the second fixing means,
The reinforcing structure for a building according to claim 6 , wherein the adjacent reinforcing member located immediately below the horizontal member and the horizontal member are fixed by the third fixing means.

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