JP2011032774A - Reinforcing panel, reinforcing structure and reinforcing method of column - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcing panel, a reinforcing structure and a reinforcing method of a column which can be constructed over a short construction time period at low cost and which can obtain sufficient reinforcing effect by increasing restraint on the column. <P>SOLUTION: The reinforcing panel 1 can be continuously installed by surrounding the nearly entire perimeter of the column C by joining the wall connection panel 2 to a wall W by a joining means 5 and by connecting the wall connection panel 2 and the reinforcing panel 1 together. Thereby, the reinforcing panel 1 can be formed in a closed shape which is continuous around the column C, and reinforcing effect can be improved by increasing the restraint of the reinforcing panel 1 on the column body C1. Moreover, since it is necessary only to provide a through hole W1 used for inserting a bolt 51 which is the joining means 5 to the wall W, it is not necessary to cut and remove the wall W. Thus, large-scale construction becomes unnecessary, and a short construction time period and a cost reduction can be achieved. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a reinforcing panel used for reinforcing a column, a reinforcing structure for a column, and a reinforcing method.

Conventionally, as a reinforcing structure that reinforces existing columns such as reinforced concrete later, the periphery of the column is surrounded by a reinforcing panel, and a grout material is filled between the reinforcing panel and the column, thereby reinforcing the reinforcing panel and the column. An integrated structure has been proposed (see, for example, Patent Document 1).
In the reinforcing structure described in Patent Document 1, the reinforcing panel is divided into four pieces each having an L-shaped cross section, and each piece is welded and joined to each other via a joint steel plate so that the four circumferences of the columns are surrounded by the reinforcing panel. It is configured.

Japanese Patent Laid-Open No. 10-25907

By the way, as a pillar, there is not only a pillar having a rectangular cross section as described in Patent Document 1, but also a pillar with a wall to which walls such as a sleeve wall, a waist wall, and a hanging wall are continuously attached.
In the case of using the conventional reinforcing panel described in Patent Document 1 for such a walled column, it is difficult to surround the entire column with the reinforcing panel because it interferes with the wall. In order to enclose with, it is necessary to cut off part or all of the wall from the pillar, which becomes a large-scale construction and causes an increase in construction period and cost.

  An object of the present invention is to provide a reinforcing panel, a column reinforcing structure, and a reinforcing method that can be constructed in a short construction period and at a low cost, and can obtain a sufficient reinforcing effect by increasing the binding force on the column.

  The reinforcing panel of the present invention is a reinforcing panel for reinforcing a walled column having a column main body and a wall extending laterally from the column main body, the column side reinforcing surface along the side surface of the column main body, A wall-side reinforcing surface along a side surface of the wall; and a joining means for joining the wall-side reinforcing surface and the wall. The joining means includes a bolt or an anchor penetrating the wall, and the bolt or the anchor. It is characterized by comprising a nut to be screwed and a reinforcing plate inserted between these bolts or anchors or nut and the wall-side reinforcing surface.

According to the present invention described above, the column-side reinforcing surface of the reinforcing panel is along the side surface of the column main body, and the wall-side reinforcing surface is along the side surface of the wall and joined to the wall via the joining means. The column main body can be surrounded by the reinforcing panel including a part of the column, and a restraining force for the column main body can be secured. Then, by constructing the joining means with bolts or anchors penetrating the walls, nuts and reinforcing plates, the wall-side reinforcing surfaces on both sides of the walls can be connected via the bolts or anchors, and thereby the reinforcing panel can be connected to the columns. It can be set as a closed shape continuously around, and the reinforcing force can be enhanced by increasing the binding force to the column main body.
Moreover, since it is only necessary to provide a hole for inserting the bolt or anchor of the joining means on the wall, it is not necessary to cut and remove the wall, so that a large-scale construction is unnecessary and the construction period is shortened. In addition, the cost can be reduced. Further, since the wall is not removed, the reinforcing effect by the reinforcing panel can be added while maintaining the rigidity and proof strength as the walled column from the beginning. Further, by inserting a reinforcing plate between the bolt or anchor or nut and the wall-side reinforcing surface, the tightening force of the bolt and nut is transmitted to the wall-side reinforcing surface via this reinforcing plate, so Even when the position of the through hole to be provided is slightly deviated, the tightening force can be properly transmitted, and the integrity between the column and the reinforcing panel can be ensured.

In this case, in the reinforcing panel of the present invention, the column-side reinforcing surface and the wall-side reinforcing surface are configured by a column-side reinforcing member and a wall-side reinforcing member that are configured separately from each other, It is preferable that the wall side reinforcing members are connected to each other.
According to such a configuration, the reinforcing panel is divided into the column-side reinforcing member and the wall-side reinforcing member as separate bodies, so that the plate thickness, the cross-sectional shape, etc. are appropriately set according to the proof stress and rigidity required for each. Therefore, it is possible to promote cost reduction by eliminating waste in each member. Furthermore, the strength of the reinforcing panel can be secured by connecting the column side reinforcing member and the wall side reinforcing member to each other. Here, as a method for connecting the column-side reinforcing member and the wall-side reinforcing member, an appropriate joining method such as welding or bolting can be used.

Further, in the reinforcing panel of the present invention, the wall-side reinforcing member is bent along the side surface of the wall and joined to the wall via the joining means, and is bent from the first surface and the column main body. A first surface that is formed along the side surface of the wall and joined to the wall through the joining means, and is bent from the first surface and It is preferable to form the second surface along the side surface of the column main body and the third surface bent from the second surface and along the other side surface of the column main body.
According to such a configuration, a wall-side reinforcing member having a substantially L-shaped cross section having the first surface and the second surface is used, or a substantially Z-shaped cross section having the first surface, the second surface, and the third surface. By using this wall-side reinforcing member, by selecting an appropriate wall-side reinforcing member according to the mounting position of the wall with respect to the column main body, it is possible to perform reinforcement flexibly corresponding to the shape of the wall-mounted column. Moreover, what is necessary is just to connect the 2nd surface in the wall side reinforcement member of cross-sectional substantially L shape, or the 3rd surface in the wall side reinforcement member of cross-sectional substantially Z shape to a column side reinforcement member. Therefore, the wall-side reinforcing member can be changed appropriately according to the fit between the column main body and the wall, and it can be used with any walled column simply by connecting to the common column-side reinforcing member. Can be improved.

Moreover, in the reinforcement panel of this invention, it is preferable that the space | interval dimension of the said reinforcement plate and the said column side reinforcement surface is set to below the plate | board thickness dimension of the said reinforcement plate.
According to such a configuration, by setting the interval dimension between the reinforcing plate and the column side reinforcing surface to be equal to or less than the plate thickness dimension of the reinforcing plate, by preventing the reinforcing plate from being provided away from the column side reinforcing surface, Deformation of the wall-side reinforcing surface can be suppressed, and the integrity of the column and the reinforcing panel can be improved, and the restraining effect of the column by the reinforcing panel can be improved.

In the reinforcing panel of the present invention, the wall-side reinforcing surface has a first insertion hole through which the bolt or anchor is inserted having a hole diameter larger than the axial diameter of the bolt or anchor by a predetermined dimension. Alternatively, the anchor plate is formed so as to be able to absorb the displacement of the anchor, and the reinforcing plate is provided with a second insertion hole through which the bolt or the anchor is inserted at a position eccentric from the center of the reinforcing plate by a predetermined distance. Is preferred.
According to such a configuration, when the bolt insertion hole is provided in the wall, even if the position of the bolt insertion hole is slightly shifted due to a reinforcing bar or the like inside the wall, the first insertion hole of the wall-side reinforcing surface is the bolt. Alternatively, since the hole diameter is larger by a predetermined dimension than the shaft diameter of the anchor, the displacement of the displaced bolt or anchor can be absorbed and inserted into the first insertion hole. Furthermore, by providing the second insertion hole of the reinforcing plate at a position that is eccentric by a predetermined distance, the reinforcing plate and the wall-side reinforcing surface are rotated by rotating the reinforcing plate within the plane according to the displaced bolt or anchor. And the contact area between the reinforcing plate and the wall-side reinforcing surface can be ensured. Therefore, it is possible to appropriately transmit the tightening force of the bolts or anchors and nuts joined to the wall-side reinforcing surface via the reinforcing plate to ensure the integrity between the column and the reinforcing panel.

Furthermore, in the reinforcing panel of the present invention, it is preferable that the reinforcing plate is formed to have a larger thickness dimension than the wall-side reinforcing surface.
Furthermore, the reinforcing panel of the present invention is preferably formed to have reinforcing ribs that reinforce the reinforcing plate.
According to such a configuration, it is possible to increase the rigidity and strength of the reinforcing plate by forming the reinforcing plate thick or providing the reinforcing rib on the reinforcing plate. The tightening force can be more reliably transmitted to the wall-side reinforcing surface and the wall, the integrity of the pillar and the reinforcing panel and the restraining force by the reinforcing panel can be increased, and the reinforcing effect can be further improved. .

On the other hand, the column reinforcing structure of the present invention is a column reinforcing structure for reinforcing a walled column having a column main body and a wall extending laterally from the column main body. The column main body is surrounded by a column side reinforcing surface, the wall side reinforcing surface of the reinforcing panel is joined to the wall by a joining means, and a filler is filled between the column side reinforcing surface and the column main body. It is characterized by being.
The column reinforcing method of the present invention is a column reinforcing method for reinforcing a column with a wall having a column main body and a wall extending laterally from the column main body. Surrounding the column main body with a column-side reinforcing surface and joining the wall-side reinforcing surface of the reinforcing panel to the wall by a joining means, and then filling a filler between the column-side reinforcing surface and the column main body. According to such a configuration, as in the case of the reinforcing panel described above, it is possible to improve the reinforcing effect by increasing the restraining force on the column main body, shorten the construction period and eliminate the need for large-scale construction. Cost reduction can be achieved.

  According to the reinforcing panel, the column reinforcing structure and the reinforcing method of the present invention as described above, it is not necessary to remove the wall even if it is a walled column, and the column including a part of the wall is surrounded by the reinforcing panel. As a result, the restraining force and the integrity of the column main body can be increased, and the reinforcing effect of the column can be improved. In addition, since it is not necessary to remove the wall, large construction is not required, and it is possible to shorten the construction period and cost, while maintaining the rigidity and proof strength as a walled column. The reinforcement effect by can be added.

It is sectional drawing which shows the reinforcement structure of the pillar which concerns on 1st Embodiment of this invention. It is a perspective view which shows the said reinforcement structure. It is a disassembled perspective view which shows a part of said reinforcement structure. It is sectional drawing which shows the reinforcement structure of the pillar which concerns on 2nd Embodiment of this invention. It is a perspective view which shows the said reinforcement structure. It is a disassembled perspective view which shows a part of said reinforcement structure. It is sectional drawing which shows the reinforcement structure of the pillar which concerns on 3rd Embodiment of this invention. It is sectional drawing and a side view which show a part of reinforcement structure which concerns on the Example of this invention. It is a graph which shows the load-deformation relationship of the analysis result in the said Example. It is a perspective view which shows the modification of this invention.

Hereinafter, each embodiment of the present invention will be described with reference to the drawings.
In the second and subsequent embodiments, the same constituent members as those described in the first embodiment and the constituent members having the same functions are denoted by the same reference numerals as those in the first embodiment. Those descriptions are omitted or simplified.

[First Embodiment]
1 and 2, a column C which is a reinforcement target of the present invention is a walled column having a column main body C1 having a rectangular cross section and a wall W extending laterally from the column main body C1. For example, an existing pillar C constructed in the past as a building structure or a pier. The reinforcing structure of the present embodiment with respect to such an existing column C is provided with a plurality of reinforcing panels 1 as column-side reinforcing members (column-side reinforcing surfaces) surrounding the column body C1 and in the vicinity of the column body C1. A wall connection panel 2 is provided as a wall-side reinforcing member (wall-side reinforcing surface) across both surfaces of the wall W in FIG. 2, and a non-shrinking mortar 3 as a filler is filled in a gap between the column main body C1 and the reinforcing panel 1. Is made up of. The plurality of reinforcing panels 1 are formed in a substantially L-shaped cross section so as to cover the respective corners corresponding to the respective side surfaces and four corners of the column main body C1, and on the three side surfaces of the column main body C1 to which the wall W is not attached. The reinforcing panels 1 are connected to each other by welding or the like, and the reinforcing panel 1 and the wall connection panel 2 are connected by welding or the like on the side surface of the column main body C1 to which the wall W is attached. The wall connection panel 2 is joined to the wall W via joining means 5 (bolts 51, nuts 52, and washers 53).

  The reinforcing panel 1 is formed by press working using a hot-rolled steel plate such as SS400, for example, and has a height dimension of about 300 mm, for example, in the height direction of the column C and is arranged in parallel vertically. Yes. The upper and lower reinforcing panels 1 are also connected to each other by welding or the like.

  The wall connection panel 2 is formed by press working using a hot rolled steel plate such as SS400 having a thickness of about 9 mm, and has a height dimension of about 300 mm, which is substantially the same as the reinforcing panel 1. Yes. Furthermore, the wall connection panel 2 has a first surface 21 along the side surface of the wall W and joined to the wall W via the joining means 5, and a second member bent from the first surface 21 and along the side surface of the column main body C1. And has a substantially L-shaped cross section. The wall connection panel 2 is connected to the upper and lower reinforcing panels 1 by welding the second surface 22 thereof.

  The joining means 5 includes a bolt 51 penetrating the wall W, a nut 52 screwed into the bolt 51, and a reinforcement inserted between the bolt 51 or the nut 52 and the first surface 21 of the wall connection panel 2. And a washer 53 as a plate. Here, a through hole W1 through which the bolt 51 passes is formed in the wall W, and a first insertion hole 24 through which the bolt 51 is inserted is also formed in the first surface 21 of the wall connection panel 2. The first insertion hole 24 is formed to have an inner diameter that is larger than the shaft diameter of the bolt 51 by a predetermined dimension, for example, about twice the shaft diameter of the bolt 51. Further, the washer 53 has a planar dimension sufficient to sufficiently cover the first insertion hole 24 of the wall connection panel 2, and a thickness dimension sufficiently thicker than the first surface 21 of the wall connection panel 2, for example, a thickness dimension of about 32 mm. It has a rectangular plate shape. The washer 53 has a second insertion hole 54 through which the bolt 51 is inserted. The second insertion hole 54 has a hole diameter that allows insertion of the bolt 51 so that the bolt 51 does not rattle corresponding to the axial diameter of the bolt 51, and is a predetermined distance from the planar center of the washer 53, for example, the planar center It is provided at a position eccentric by 7.5 mm on one side.

  As a construction procedure of the above reinforcing structure, first, the surface of the column C is subjected to an appropriate surface treatment in order to increase the adhesion between the column C and the non-shrinkable mortar 3, and the through-hole W1 is provided at an appropriate interval in the wall W. Is formed. At this time, in order to avoid a reinforcing bar provided inside the wall W, the position of the through hole W1 may be slightly shifted vertically and horizontally. Next, the wall connection panel 2 is set on both surfaces of the wall W, and the wall connection panel 2 is fixed to the wall W by the joining means 5. At this time, even if the position of the through hole W1 is deviated, the first insertion hole 24 of the wall connection panel 2 is formed larger than the shaft diameter of the bolt 51. By inserting, the wall connection panel 2 can be fixed in a predetermined position. Furthermore, since the second insertion hole 54 of the washer 53 is provided eccentrically, the washer 53 is rotated in a plane and the eccentric direction of the second insertion hole 54 is adjusted to the direction in which the bolt 51 is shifted. The entire one insertion hole 24 can be covered with a washer 53 so that the tightening force of the bolt 51 and the nut 52 can be reliably transmitted to the first surface 21 of the wall connection panel 2.

  Next, the reinforcing panel 1 is temporarily fixed around the column C, the reinforcing panels 1 are connected to each other by welding or the like, and the reinforcing panel 1 and the wall connection panel 2 are connected to each other by welding or the like. Installation of the reinforcing panel 1 is completed. By repeating this procedure in order from the lower side toward the upper side, the reinforcing panel 1 is installed over the entire length in the height direction of the column C. Thereafter, the non-shrink mortar 3 is provided between the column main body C1 and the reinforcing panel 1. The filling of the reinforcing structure is completed.

  According to the above embodiment, the wall connecting panel 2 is joined to the wall W by the joining means 5 and the wall connecting panel 2 and the reinforcing panel 1 are connected to surround and reinforce substantially the entire circumference of the column C. Panel 1 can be installed continuously. Therefore, the reinforcement panel 1 can be made into the closed shape which continued around the pillar C, and the restraining force of the reinforcement panel 1 with respect to the pillar main body C1 can be heightened, and the reinforcement effect can be improved. Moreover, since it is only necessary to provide the through-hole W1 for inserting the bolt 51 of the joining means 5 with respect to the wall W, it is not necessary to cut and remove the wall W, so that a large-scale construction is not necessary. This can shorten the construction period and reduce the cost. Further, since the wall W is not removed, the reinforcing effect of the reinforcing panel 1 and the non-shrink mortar 3 can be added while maintaining the rigidity and proof strength as the walled column from the beginning. Furthermore, since the washer 53 is inserted between the bolt 51 and the nut 52 and the first surface 21 of the wall connection panel 2, even if the position of the through hole W1 of the wall W is slightly shifted, the tightening force is appropriately set to the wall. It can transmit to the connection panel 2, and the integrity of the pillar C and the reinforcement panel 1 can be ensured.

[Second Embodiment]
Next, a column reinforcing structure according to a second embodiment of the present invention will be described with reference to FIGS.
In the reinforcing structure of the present embodiment, the mounting position of the wall W in the column C and the structure of the wall connecting panel and the shape of the reinforcing panel coupled thereto are different from those of the first embodiment, but other configurations Is substantially the same as in the first embodiment. Hereinafter, the differences will be described in detail.
In the column C which is a reinforcement target of the present embodiment, the wall W is provided eccentrically at a position close to one corner of the column main body C1. And the reinforcement panel 1A installed in the position where the wall W approached is formed not in the cross-section substantially L shape like the said reinforcement panel 1, but in linear form. And the wall connection panel 2A fixed to the wall W surface of the side close | similar to the corner | angular of the column main body C1 is formed in cross-sectional substantially Z shape instead of the cross-sectional substantially L shape like the said wall connection panel 2. FIG. The wall connection panel 2 having a substantially L-shaped cross section is fixed to the wall W surface opposite to the wall connection panel 2A, as in the first embodiment.

  The wall connection panel 2A has a first surface 25 along the side surface of the wall W and joined to the wall W through the joining means 5, and a second surface 26 bent from the first surface 25 and along the side surface of the column main body C1. And a third surface 27 that is bent from the second surface 26 and extends along the other side surface of the column body C1. A first insertion hole 24 is formed in the first surface 25 of the wall connection panel 2A. Similar to the wall connection panel 2, the wall connection panel 2A is fixed to the wall W by the joining means 5, and is provided across the upper and lower reinforcement panels 1A and coupled to the reinforcement panel 1A by welding or the like. It is like that.

According to the above embodiment, in addition to the same effects as those of the first embodiment, the following effects can be achieved.
That is, even when the wall W is attached eccentrically to a position close to the corner of the column main body C1, by connecting the reinforcing panel 1A using the wall connection panel 2A having a substantially Z-shaped cross section, substantially all of the column C can be obtained. The reinforcing panels 1 and 1A can be continuously installed so as to surround the circumference. Therefore, by appropriately selecting the wall connection panels 2 and 2A according to the shape of the column C, reinforcement corresponding to the shape of the walled column can be implemented flexibly.

[Third Embodiment]
Next, a column reinforcing structure according to a third embodiment of the present invention will be described with reference to FIG.
The reinforcing structure of the present embodiment is different from the first and second embodiments in that the column side reinforcing surface and the wall side reinforcing surface are integrally formed on the reinforcing panel. Hereinafter, the differences will be described in detail.
Among the reinforcing panels of the present embodiment, the reinforcing panel 1B provided corresponding to the side surface and corner of the column main body C1 to which the wall W is attached is a column side reinforcing surface 12 having a substantially L-shaped cross section along two side surfaces of the column main body C1. And a wall-side reinforcing surface 13 that is continuously bent along the column-side reinforcing surface 12 and extends along the side surface of the wall W. A first insertion hole 14 through which the bolt 51 is inserted is formed in the wall-side reinforcing surface 13, and a folded portion 15 that holds the washer 53 is formed at the tip of the wall-side reinforcing surface 13. Similar to the first insertion hole 24, the first insertion hole 14 is formed to have an inner diameter that is larger than the shaft diameter of the bolt 51 by a predetermined dimension, for example, about twice the shaft diameter of the bolt 51. ing.

According to the above embodiment, in addition to the same effects as those of the first and second embodiments, the following effects can be achieved.
That is, by using the reinforcing panel 1B in which the column-side reinforcing surface 12 and the wall-side reinforcing surface 13 are integrally formed, the wall-side reinforcing surface 13 is joined to the wall W by the joining means 5, thereby the first, The wall connection panels 2 and 2A as in the second embodiment can be dispensed with, the number of members can be reduced, and the installation work at the time of construction can be reduced.

Embodiments of the present invention will be described below with reference to FIGS.
FIG. 8 is a sectional view and a side view showing the wall connection panel 2 and the washer 53 as an embodiment of the present invention. The wall connection panel 2 is a hot-rolled steel sheet (SS490) having a thickness of 9 mm formed by press working. The width of the first surface 21 joined to the wall is 150 mm, The width dimension of the second surface 22 along is 224 mm. Further, a first insertion hole 24 having a diameter of 57 mm is formed in the first surface 21 around the position of 76 mm from the surface of the second surface 22, and from the surface of the second surface 22 to the edge of the first insertion hole 24. The distance is 47.5 mm. On the other hand, the washer 53 is formed in a rectangular plate shape from a hot-rolled steel plate (SS490) having a plate thickness of 32 mm, its upper and lower lengths are 130 mm, and left and right widths are 110 mm. The second insertion hole 54 formed in the washer 53 has a diameter of 29 mm, the vertical center of the 57 mm washer 53 (65 mm from the left and right edges), and the horizontal center (55 mm from the upper and lower edges). Is formed at a position that is eccentric by 7.5 mm on one side. In such first insertion hole 24 and second insertion hole 54, a bolt of M27 (shaft diameter 27 mm) is inserted as the bolt 51.

  In the wall connection panel 2 and the washer 53 described above, FIG. 8 shows a state where the washer 53 is installed at a position farthest from the second surface 22 of the wall connection panel 2. That is, in the case where the bolt 51 is provided on the side away from the column main body C1, the edge of the eccentric second insertion hole 54 and the edge of the first insertion hole 24 opposite to the second surface 22 are In this state, the distance x between the second surface 22 and the edge of the washer 53 is 28.5 mm which is equal to or less than the plate thickness (32 mm) of the washer 53. Is set. Even in such an installed state of the washer 53, the entire first insertion hole 24 is covered with the washer 53, and the tightening force from the bolt 51 via the washer 53 is appropriately transmitted to the second surface 22 of the wall connection panel 2. It has come to be. On the other hand, when the bolt 51 is provided so as to be shifted to the side closer to the column main body C1, the washer 53 may be installed so as to be reversed left and right from the state of FIG. The bolt 51 can be inserted into the first insertion hole 24 and the second insertion hole 54 without interfering with the second surface 22 of the panel 2.

The analysis which investigates the deformation | transformation of the wall connection panel 2 in a predetermined load state was performed using the above Examples and Comparative Examples.
Here, as the analysis model and the analysis conditions, as shown in FIG. 8, the first surface 21 of the wall connection panel 2 in a state where the washer 53 is installed at the position farthest from the second surface 22 of the wall connection panel 2. FEM analysis is performed by pulling the side and gradually increasing the tensile load. The distance between the base end of the second surface 22 and the wall is the displacement, the horizontal axis is the displacement, and the tensile load is the vertical axis. -The deformation relationship is shown in FIG.
As an embodiment, the wall connection panel 2 (plate thickness dimension: 32 mm) and the washer 53 (plate thickness dimension: 32 mm) shown in FIG. 8 are used, and the distance dimension x between the second surface 22 and the edge of the washer 53 is set. It was set to 28.5 mm. In FIG. 9, the analysis result of an Example is shown with a triangle mark.

On the other hand, as a comparative example, two large and small washers are used in an overlapping manner, a large washer having an outer dimension of 270 mm × 110 mm, and a small washer having an outer dimension of 130 mm × 110 mm, and the thickness dimensions thereof are set. Analysis was performed with five models as parameters. In addition, the space | interval dimension x in each model was set to 28.5 mm same as an Example.
In Comparative Example 1, the thickness of the large washer is 9 mm and the thickness of the small washer is 24 mm. In Comparative Example 2, the thickness of the large washer is 16 mm and the thickness of the small washer is 16 mm. Comparative Example 3 has a large washer with a thickness of 19 mm and a small washer with a thickness of 19 mm. Comparative Example 4 has a large washer with a thickness of 9 mm and a small washer with a thickness of 9 mm. In Comparative Example 5, the thickness of the large washer is 9 mm and the thickness of the small washer is 16 mm.

As shown in FIG. 9, in the example and comparative examples 1 to 3, the displacement of the base end of the second surface 22 of the wall connection panel 2 is within about 1 mm under a load of about design load (about 106 kN). It was found that good rigidity and proof stress can be obtained. On the other hand, in Comparative Examples 4 and 5, the displacement of the base end portion of the second surface 22 of the wall connection panel 2 exceeds 1 mm in the design load. In particular, in Comparative Example 5, a deformation of 4 mm or more is observed, and the rigidity is high. It was not enough in terms.
From the above, regarding the thickness dimension of the washer, when the sheet thickness dimension is set to 32 mm as in the example, and as the thickness dimension including the two large and small washers as in Comparative Examples 1 to 3, the thickness is 33 mm and 32 mm, respectively. , 38 mm, it was found that rigidity and proof stress can be ensured by setting the spacing dimension x to 28.5 mm which is equal to or less than these plate thickness dimensions. On the other hand, when the plate thickness dimensions of the two large and small washers as in Comparative Examples 4 and 5 are 18 mm and 25 mm, respectively, if these plate thickness dimensions exceed the space dimension x, rigidity and proof strength are ensured. Proved difficult.
Accordingly, not only the plate thickness dimension of the washer is increased, but also the distance dimension x between the edge of the washer 53 and the second surface 22 of the wall connection panel 2 is reduced, that is, the washer 53 is made as small as possible (the plate thickness dimension of the washer 53). In the following description, by approaching the second surface 22 side (column body C1 side), deformation of the wall connection panel 2 can be suppressed, and knowledge that it is effective in improving the restraining effect of the reinforcing panel 1 is obtained. It was.

In addition, this invention is not limited to the said embodiment, Including other structures etc. which can achieve the objective of this invention, the deformation | transformation etc. which are shown below are also contained in this invention.
For example, in the above-described embodiment, the walled column C with the wall W attached to the column main body C1 having a rectangular cross section is illustrated, but the walled column to be reinforced in the present invention has a column main body with a rectangular cross section. The column is not limited to a circular cross section, and may be a column having another polygonal cross section. Furthermore, a plurality of walls may be attached to the column body, and the wall is not limited to a wall that is attached over the entire length of the column, but is a wall that is partially attached to the entire length of the column such as a hanging wall or a waist wall. It may be. Further, the wall may be attached to be inclined with respect to the side surface of the column. In this case, the shape of the wall connection panels 2 and 2A and the wall-side reinforcing surface 13 may be changed according to the inclination angle of the wall. . Further, the wall is not limited to one attached to only one side of the column, and may be configured by attaching the wall to a plurality of side surfaces such as both sides of the column or adjacent side surfaces. In this way, when a plurality of walls are attached to the pillar, the position where each wall is attached can be arbitrarily set for each wall, and may be in any form of the first and second embodiments.

Moreover, in the said embodiment, although the thickness dimension of the washer 53 of the joining means 5 was formed sufficiently thicker than the 1st surfaces 21 and 25 of the wall connection panels 2 and 2A, and the wall side reinforcement surface 13, it is the following FIG. As shown in FIG. 5, the thickness dimension of the washer can be reduced by providing the reinforcing ribs 28 on the wall connection panel 2B.
Specifically, the wall connection panel 2 </ b> B has a thickness of about 9 mm and is formed by press working using a hot rolled steel plate such as SS400, and the wall connection panel 2 </ b> B extends over the first surface 21 and the second surface 22. The reinforcing ribs 28 are fixed by welding. By providing such a reinforcing rib 28, the tightening force of the joining means by the wall connection panel 2B can be reliably transmitted, and the thickness of the washer is reduced from, for example, about 32 mm to about 9 mm in the above embodiment. Be able to.

In addition, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described with particular reference to certain specific embodiments, but without departing from the spirit and scope of the invention, Various modifications can be made by those skilled in the art in terms of material, quantity, and other detailed configurations.
Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such restrictions is included in this invention.

  DESCRIPTION OF SYMBOLS 1,1A, 1B ... Reinforcement panel (column side reinforcement member), 2, 2A, 2B ... Wall connection panel (wall side reinforcement member), 3 ... Non-shrink mortar (filler), 5 ... Joining means, 12 ... Column side Reinforcing surface, 13 ... wall-side reinforcing surface, 14 ... first insertion hole, 21,25 ... first surface, 22,26 ... second surface, 24 ... first insertion hole, 27 ... third surface, 28 ... reinforcing rib , 51 ... bolts, 52 ... nuts, 53 ... washers (reinforcing plates), 54 ... second insertion holes, C ... pillars, C1 ... pillar main bodies, W ... walls.

Claims (9)

A reinforcing panel for reinforcing a walled column having a column main body and a wall extending laterally from the column main body,
A column-side reinforcing surface along the side surface of the column main body, a wall-side reinforcing surface along the side surface of the wall, and a joining means for joining the wall-side reinforcing surface and the wall,
The joining means includes a bolt or anchor penetrating the wall, a nut screwed into the bolt or anchor, and a reinforcing plate inserted between the bolt or anchor or nut and the wall-side reinforcing surface. A reinforcing panel characterized by comprising. The reinforcing panel according to claim 1,
The column-side reinforcing surface and the wall-side reinforcing surface are configured by a column-side reinforcing member and a wall-side reinforcing member that are configured separately from each other, and the column-side reinforcing member and the wall-side reinforcing member are connected to each other. Reinforcement panel characterized by that. The reinforcing panel according to claim 2,
The wall-side reinforcing member is
Is it formed along the side surface of the wall and having a first surface joined to the wall through the joining means and a second surface bent from the first surface and along the side surface of the pillar body? Or a first surface along the side surface of the wall and joined to the wall via the joining means, a second surface bent from the first surface and along the side surface of the pillar body, and the second surface A reinforcing panel formed by bending and having a third surface along the other side surface of the column main body. In the reinforcement panel in any one of Claims 1-3,
The reinforcing panel is characterized in that a distance between the reinforcing plate and the column-side reinforcing surface is set to be equal to or smaller than a thickness of the reinforcing plate. In the reinforcement panel in any one of Claims 1-4,
A first insertion hole through which the bolt or anchor is inserted has a hole diameter larger than the axial diameter of the bolt or anchor by the wall-side reinforcing surface so as to absorb the displacement of the bolt or anchor. And
The reinforcing panel, wherein the reinforcing plate is provided with a second insertion hole through which the bolt or the anchor is inserted at a position eccentric by a predetermined distance with respect to the plane center of the reinforcing plate. In the reinforcement panel in any one of Claims 1-5,
The reinforcing panel is characterized in that the reinforcing plate has a thickness dimension larger than that of the wall-side reinforcing surface. In the reinforcement panel in any one of Claims 1-6,
The reinforcing panel is formed with reinforcing ribs that reinforce the reinforcing plate. A column reinforcing structure for reinforcing a walled column having a column main body and a wall extending laterally from the column main body,
The column main body is surrounded by the column-side reinforcing surface of the reinforcing panel according to any one of claims 1 to 7, the wall-side reinforcing surface of the reinforcing panel is joined to the wall by a joining means, and the column A reinforcing structure for a column, wherein a filler is filled between the side reinforcing surface and the column main body. A column reinforcing method for reinforcing a walled column having a column main body and a wall extending laterally from the column main body,
The column main body is surrounded by the column-side reinforcing surface of the reinforcing panel according to any one of claims 1 to 7, and the wall-side reinforcing surface of the reinforcing panel is joined to the wall by a joining means, and then the column. A column reinforcing method, wherein a filler is filled between the side reinforcing surface and the column main body.

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