JP6735198B2 - Vibration control wall and manufacturing method thereof - Google Patents

Description

The present invention relates to a damping wall for suppressing vibration of a structure, which is provided between a first part of the structure and a second part below the first part, and a manufacturing method thereof.

Conventionally, as this type of damping wall, for example, one disclosed in Patent Document 1 is known. This damping wall is made of a viscous material, and has a housing portion attached to the floor side of the structure and an inner wall attached to the ceiling side of the structure. The accommodating portion has a pair of outer walls, a pair of side walls and a bottom wall, and is formed in a box shape that opens upward. A viscous body is accommodated in the accommodating portion. The inner wall is made of a rectangular steel plate, the upper end of which is attached to a flange by welding, and the inner wall is attached to the ceiling side via the flange. Further, the portion of the inner wall other than the upper end portion is immersed in the viscous body in the housing portion from above and is movable with respect to the housing portion. In this conventional damping wall, as the structure vibrates, when horizontal relative displacement occurs between the floor side and the ceiling side, the inner wall moves horizontally with respect to the accommodating part, The shear resistance of the viscous body acts on the floor side and the ceiling side via the housing portion and the inner wall, respectively, whereby vibration of the structure is suppressed.

JP-A-11-71935

In addition, in recent years, in order to obtain a greater damping force of the damping wall, it is composed of a plurality of storage chambers partitioned by a plurality of partition walls in the storage unit and an inner wall accommodated in each of the plurality of storage chambers. A damping wall having multiple inner walls is used. Hereinafter, with reference to FIGS. 28 and 29, among the damping walls having a plurality of inner walls, four inner walls composed of first to fourth inner walls IW1 to IW4 and first to third partition walls CW1 to CW3 A conventional method for manufacturing a seismic control wall having three partition walls will be described.

In this conventional manufacturing method, as shown in FIG. 28( a ), first, a pair of side walls and a bottom wall of the accommodating portion, in which the flanges FL are arranged in an upright state and integrally attached to each other by welding, are not shown. (Not shown) and one outer wall OW1 are laid down, and the upper end of the first inner wall IW1 is a protrusion using the backing metal BM1 with the first inner wall IW1 laid over the outer wall OW1. It is attached to the lower surface of the flange FL by lap welding. Next, the presence or absence of a defect in the welded portion due to the butt welding between the lower surface of the flange FL and the upper end of the first inner wall IW1 is determined by a nondestructive inspection (for example, ultrasonic flaw detection inspection), and when it is determined that there is a defect. Repair welding is performed on this welded portion. In addition, in the specification and claims of the present application, the “welded portion” includes a portion of the weld metal and a portion of the base material such as the flange FL in the vicinity of the weld metal. 28 and 29, cross-section hatching is omitted.

Next, as shown in FIG. 28(b), with the outer wall OW1, the flange FL and the first inner wall IW1 being left as they are, the first partition wall CW1 is laid down above the first inner wall IW1. , A pair of side walls and a bottom wall (neither shown) are attached by welding. Next, in a state in which the second inner wall IW2 is laid down above the first partition wall CW1, the upper end of the second inner wall IW2 is attached to the lower surface of the flange FL by butt welding using the backing metal BM2. In this state, the backing metal BM2 corresponding to the second inner wall IW2 is in contact with the surface of the first inner wall IW1 opposite to the corresponding backing metal BM1. Next, the presence or absence of a defect in the welded portion due to the butt welding between the lower surface of the flange FL and the upper end of the second inner wall IW2 was determined by the ultrasonic flaw detection test as in the case of the first inner wall IW1, and was determined to be defective. In some cases, repair welding is performed on this welded portion.

Next, as shown in FIGS. 29A and 29B, the mounting of the first partition wall CW1 and the mounting/inspection of the second inner wall IW2 as described above are performed by the second partition wall CW2 and the third inner wall IW3, and The third partition wall CW3 and the fourth inner wall IW4 are similarly sequentially processed using the corresponding backing metals BM3 and BM4. Next, the flange FL, the first to fourth inner walls IW1 to IW4, etc. are left as they are, and the other outer wall OW2 is laid down above the fourth inner wall IW4 and is welded to the pair of side walls and the bottom wall. It is attached. In addition, as shown in FIG. 29B, the first to fourth inner walls IW1 to IW4 and the backing metals BM1 to BM4 corresponding thereto are arranged alternately, and one side in the width direction of the flange FL. The backing metal BM1 is arranged on the other side, and the fourth inner wall IW4 is arranged on the other side. As described above, butt welding is used to attach the first to fourth inner walls IW1 to IW4 to the flange FL because the first to fourth inner walls IW1 to IW4 are caused by the shear resistance of the viscous body. This is to resist the pulling force that acts.

Butt welding using this kind of backing metal is a so-called complete penetration welding, and therefore requires a relatively long time for its work. On the other hand, in the conventional manufacturing method, as is clear from FIG. 29(b), the welded portion of one inner wall with the lower surface of the flange is covered with the backing metal of the inner wall located next to it. Therefore, as described above, the butt welding of one inner wall and the nondestructive inspection of the welded portion of the plurality of inner walls are sequentially performed from one side in the width direction of the flange toward the other side. Since the butt welding of the inner wall next to it and the nondestructive inspection of the welded part have to be performed after completion, the nondestructive inspection cannot be efficiently performed collectively. In addition, this type of non-destructive inspection is generally performed by a third-party organization in order to ensure its reliability. It may not be completed within the specified work time. As described above, the conventional manufacturing method reduces the manufacturing efficiency of the seismic control wall.

Further, in the conventional manufacturing method, as described above, the first to fourth inner walls IW1 to IW4 are sequentially attached from the one outer wall OW1 side to the other outer wall OW2 side by welding to the flange FL. As a result, welding strain occurs unevenly in the portion of the flange FL on the side of the other outer wall OW2, and it takes a relatively long time to correct such welding strain, which further reduces the manufacturing efficiency of the vibration control wall. Will end up. Such a welding strain is not a serious problem when the number of inner walls is less than 4, but the more the number of inner walls is four or more, the larger the welding strain becomes, and the more the above-mentioned problems become more prominent.

The present invention has been made in order to solve the above problems, the welded portion of the lower surface of the flange and the upper end of each of the plurality of inner walls, the non-destructive inspection can be collectively performed efficiently, and the inner wall An object of the present invention is to provide a damping wall and a manufacturing method thereof, which can suppress the welding strain from being unevenly generated in the flange when the number is relatively large, and by which the manufacturing efficiency can be improved.

In order to achieve the above-mentioned object, the invention according to claim 1 is provided between a first portion in a system including a structure and a second portion above the first portion to vibrate the structure. Is a seismic control wall that suppresses vibration, is formed in a box shape that opens upward, has a plurality of storage chambers, is configured of a storage portion that is connected to the first portion, and is made of steel, and extends in the horizontal direction. At the same time, a flange connected to the second portion, a plurality of inner walls made of a steel plate and provided corresponding to the plurality of storage chambers, and a backing made of steel and provided corresponding to the plurality of inner walls And a plurality of inner walls each extending vertically and horizontally, the upper end of which is attached to the lower surface of the flange by butt welding using a backing metal, and the portion other than the upper end from above. Each of the corresponding plurality of storage chambers is movably accommodated in the horizontal direction, and the plurality of inner walls and the backing metal are in the width direction of the flange, from the center portion in the width direction of the flange toward both outer sides, The backing metal and the inner wall are alternately arranged, and one of the plurality of inner walls is arranged on the outermost sides in the width direction of the flange, and each of the housing portion and the plurality of inner walls of each of the plurality of housing chambers is arranged. And a viscous body provided between and.

According to this configuration, the housing portion is formed in a box shape that opens upward, has a plurality of housing chambers, and is connected to the first portion in the system including the structure. Further, the flange made of steel material extends in the horizontal direction and is connected to the second portion above the first portion. Furthermore, each of the plurality of inner walls, which are made of steel plate and are provided corresponding to the plurality of storage chambers, extend in the vertical direction and the horizontal direction, and the upper end of the inner wall is formed by butt welding using a backing metal. It is attached to the bottom of the flange. Further, a portion other than the upper end portion of each of the plurality of inner walls is accommodated in each of the corresponding plurality of accommodation chambers from above in a horizontally movable manner.

Further, a viscous body is provided between the containing portion and each of the plurality of inner walls in each of the plurality of containing chambers. With the above configuration, in the seismic control wall, when the structure is vibrated due to an earthquake or the like and horizontal relative displacement occurs between the first part and the second part, a plurality of inner walls are accommodated accordingly. The structure moves by moving in the horizontal direction with respect to the portion, and the shear resistance of the viscous body between the plurality of inner walls and the housing portion acts on the first and second portions via the housing portion and the plurality of inner walls, respectively. Vibration is suppressed.

Further, according to the above-mentioned configuration, the plurality of inner walls and the backing metal are alternately arranged in the widthwise direction of the flange in the order of the backing metal and the inner wall from the center portion in the widthwise direction of the flange toward both outer sides. Unlike the conventional case described above (see FIG. 29B), one of the plurality of inner walls is arranged on the outermost sides, respectively. Therefore, after the butt welding of one inner wall and the nondestructive inspection of the welded portion are completed, the butt welding of the adjacent inner wall and the nondestructive inspection of the welded portion are not performed. After the butt welding of the two inner walls symmetrically arranged in the width direction of the flange centering on the inner backing metal is completed, non-destructive inspection of the welded part with those flanges is put together and efficiently. It is possible to increase the manufacturing efficiency of the damping wall.

In particular, when the number of inner walls is four or more and is relatively large, a plurality of sets of two inner walls and the flange, which are arranged symmetrically to each other, are sequentially welded from the inner side in the width direction of the flange toward both outer sides. The non-destructive inspection of the parts can be efficiently performed collectively at the completion of the butt welding, thereby effectively obtaining the above-described effect that the manufacturing efficiency of the damping wall can be improved. ..

Further, when the number of inner walls is four or more, which is relatively large, the above-described configuration enables mounting of the plurality of inner walls to the flange by butt welding using a backing metal from both sides of the flange in the width direction. This can be performed sequentially toward the outer side, and thereby, unlike the above-described conventional manufacturing method, it is possible to suppress welding strain from being unevenly generated in a portion on one side in the width direction of the flange. As a result, the time required to correct the welding strain of the flange can be shortened, so that the manufacturing efficiency of the damping wall can be further improved.

The invention according to claim 2 is the damping wall according to claim 1, wherein the number of the plurality of inner walls is 4 or more, and the backing metal is a plurality of backing metal which is one less than the number of the plurality of inner walls. The inner backing metal, which is a single backing metal that is located at the center of the flange in the width direction among the plurality of backing metal, is shared by the inner backing metal on both sides of the inner wall. The first inner wall and the second inner wall, which are respectively located at, are attached to the lower surface of the flange.

According to this configuration, the number of the plurality of inner walls is 4 or more, and the backing metal is composed of the plurality of backing metal that is one less than the number of the plurality of inner walls, and is located at the center portion in the width direction of the flange. The first inner wall and the second inner wall, which are respectively located on both sides of the inner backing metal of the plurality of inner walls, are attached to the lower surface of the flange with the inner backing metal, which is a backing metal, being common. Therefore, as described in the description of the invention according to claim 1, it is possible to effectively obtain the effect of increasing the manufacturing efficiency of the damping wall. In addition, since the backing metal for attaching the first and second inner walls is composed of a single common inner metal backing metal, it is possible to suppress the seismic control compared to the case where the backing metal is composed of separate backing metal. It is possible to reduce the number of wall parts and further improve the manufacturing efficiency of the seismic control wall.

The invention according to claim 3 is the manufacturing method for manufacturing the damping wall according to claim 1, wherein a first inner backing metal as a backing metal is provided at a center portion of the lower surface of the flange in the width direction of the flange. And an inner backing metal manufacturing process in which the second inner backing metal is integrally provided, and after completion of the inner backing metal manufacturing process, the first inner wall, which is one of the plurality of inner walls, is welded to the first inner backing metal. A first inner wall for temporarily attaching and a second inner wall for temporarily attaching the second inner wall, which is another one of the plurality of inner walls, to the second inner backing metal by welding after completion of the inner backing metal manufacturing process. After completing the temporary attaching step and the first inner wall temporary attaching step, the first inner wall main attaching step of attaching the upper end of the first inner wall to the lower surface of the flange by butt welding using the first inner backing metal; After the completion of the inner wall temporary attaching step, the second inner wall final attaching step of attaching the upper end of the second inner wall to the lower surface of the flange by butt welding using the second inner backing metal, and the first and second inner wall final attaching steps After completion of the above, a first determining step of determining whether or not there is a defect in each of the welded portions by butt welding of the lower surface of the flange and the upper ends of the first and second inner walls by a non-destructive inspection is provided. To do.

According to this configuration, in the inner backing metal manufacturing process, the first and second inner backing metals are integrally provided on the lower surface of the flange in the center portion in the width direction of the flange, and the inner backing metal manufacturing process is completed. Later, in the first and second inner wall temporary attaching steps, the first and second inner walls are respectively temporarily attached to the first and second inner backing metals by welding, and the first and second inner wall temporary attaching steps are performed. After completion of the above, the upper ends of the first and second inner walls are attached to the lower surface of the flange by butt welding using the first and second inner backing plates, respectively, in the first and second inner wall main attachment steps. In addition, after completion of the first and second inner wall main attachment steps, in the first determination step, it is determined whether or not there is a defect in each of the welded portions due to the butt welding between the lower surface of the flange and the upper ends of the first and second inner walls. Since it is determined by the destructive inspection, as described in the description of the invention according to claim 1, the non-destructive inspection of these welded portions can be efficiently performed collectively, thereby improving the manufacturing efficiency of the damping wall. Can be increased.

According to a fourth aspect of the present invention, in the method for manufacturing the damping wall according to the third aspect, the first and second inner back metals are configured by a single common back metal. And

According to this structure, since the first and second inner backing metals are composed of a single backing metal that is common to each other, it is possible to suppress the seismic control compared to the case where the first and second inner backing metals are composed of different backing metals. It is possible to reduce the number of wall parts and further improve the manufacturing efficiency of the seismic control wall.

The invention according to claim 5 is the method for manufacturing a damping wall according to claim 3 or 4, wherein the number of the plurality of inner walls is 4 or more, and the backing metal is the first and second inner backing metal. Of the plurality of backing plates, the first and the second backing plates of the plurality of backing plates are provided on both outer sides of the inner walls respectively located on the outermost outer sides in the width direction of the flange after the completion of the first determination step. One backing metal other than the inner backing metal and another backing metal are placed on the lower surface of the flange in a state where they are respectively arranged, and one backing metal mounting process performed by the backing metal mounting process. A first outer inner wall temporary attaching step of temporarily attaching one inner wall other than the first and second inner walls of the plurality of inner walls to the backing metal, and another one of the backing attached by the backing metal attaching step. After the completion of the second outer inner wall temporary attaching step of temporarily attaching one inner wall other than the first and second inner walls of the plurality of inner walls to the gold and the first outer inner wall temporary attaching step, After completion of the first outer inner wall main attachment step of attaching the upper end to the lower surface of the flange by butt welding using one backing metal and the second outer inner wall provisional attachment step, the upper end of the other one inner wall is After the completion of the second outer inner wall main attaching step of attaching to the lower surface of the flange by butt welding using one backing metal, and the flange and one inner wall and the other one A second determination step of determining the presence or absence of each defect in the welded portion by butt welding with the upper ends of the two inner walls by non-destructive inspection, the backing metal attaching step, the first and second outer inner wall temporary attachments The intermediate assembly manufacturing process including the process, the first and second outer inner wall main-bonding processes, and the second determination process is performed for the inner walls other than the first and second inner walls among the plurality of inner walls, and the plurality of backing plates. It is characterized in that the backing metal other than the first and second inner backing metal is repeatedly performed.

According to this structure, the number of the plurality of inner walls is four or more, and the backing metal is composed of the plurality of backing metal including the first and second inner backing metal. In addition, in the backing metal attaching step, after the completion of the first determining step, the first and second inner backing pieces of the plurality of backing pieces are provided on both outer sides of the inner walls respectively positioned on the outermost sides in the width direction of the flange. One backing metal other than the backing metal and another backing metal are respectively arranged and attached to the lower surface of the flange in that state. Further, in the first and second outer inner wall temporary attaching steps, the first and second inner walls of the plurality of inner walls are respectively attached to the one backing metal and the other backing metal attached in the backing metal attaching step. One inner wall other than the inner wall and another one inner wall are temporarily attached.

In addition, after completion of the first and second outer inner wall provisional attaching steps, the upper ends of one inner wall and another one inner wall are replaced by one backing metal and another backing metal in the first and second outer inner wall main attaching steps, respectively. It is attached to the lower surface of the flange by butt welding using each one backing metal. Furthermore, after the completion of the first and second outer inner wall main attachment steps, in the second determination step, the defects of each of the welded portions due to the butt welding of the lower surface of the flange and the upper end of one inner wall and the other one inner wall are detected. Presence or absence is determined by nondestructive inspection. Among the plurality of inner walls, the intermediate assembly manufacturing process including the backing metal attaching process, the first and second outer inner wall temporary attaching processes, the first and second outer inner wall final attaching processes, and the second determining process Repeatedly for inner walls other than the first and second inner walls, and for backing metal other than the first and second inner backing metal of the plurality of backing metal.

As described above, as described in the description of the invention according to claim 1, with respect to the plurality of sets of two inner walls symmetrically arranged on both outer sides with the first and second inner backing metals as the center, Each time the butt welding is completed from the inner side to the outer side, including the two inner walls, in sequence, non-destructive inspection of the welded portions of the inner wall and the flange can be collectively and efficiently performed. .. As a result, the effect of increasing the manufacturing efficiency of the seismic control wall can be effectively obtained. Further, as described in the description of the invention according to claim 1, the plurality of inner walls are sequentially attached from the central portion in the width direction of the lower surface of the flange toward both outer sides by the plurality of steps described above, so that the welding strain Can be suppressed from being unevenly generated at one side portion of the flange in the width direction, and by extension, the manufacturing efficiency of the damping wall can be further enhanced.

The invention according to claim 6 is a manufacturing method for manufacturing the damping wall according to claim 3 or 4, wherein in the first inner wall main attachment step, the inner backing plate manufacturing step, the first and second inner wall temporary In the state where the flange, the first and second inner backing plates, and the first and second inner walls, which are integrated with each other by the attaching step, are laid down so that the first inner wall is located on the upper side, the first inner back The upper end of the first inner wall is attached to the lower surface of the flange by butt welding using a metal, and in the second inner wall main bonding step, the inner back metal manufacturing step, (2) The flange, the first and second inner backing plates, and the first and second inner walls, which are integrated with each other by the inner wall provisional attaching step and the first inner wall main attaching step, are turned over so that the second inner wall is located on the upper side. The upper end of the second inner wall is attached to the lower surface of the flange by butt welding using the second inner backing metal in a state where the flange, the first and second flanges are integrated with each other. A state in which an inner backing metal and an intermediate assembly including the first and second inner walls are manufactured, and the manufactured intermediate assembly is laid down so that the second inner wall is located on the upper side in the first determination step. Then, after determining the presence or absence of a defect in the welded portion between the lower surface of the flange and the upper end of the second inner wall, the intermediate assembly is turned over, and the first inner wall is laid down so as to be positioned on the upper side. It is characterized in that the presence or absence of a defect in the welded portion between the lower surface of the flange and the upper end of the first inner wall is determined.

According to this structure, in the first inner wall main attaching step, the flanges integrated with each other by the inner backing metal manufacturing step, the first and second inner wall temporary attaching steps, the first and second inner backing pieces, and the With the first and second inner walls laid down so that the first inner wall is located on the upper side, the upper end of the first inner wall can be attached to the lower surface of the flange by butt welding using the first inner backing metal. Done. In addition, in the second inner wall main attaching step, after the first inner wall main attaching step is completed, the inner backing metal manufacturing step, the second inner wall temporary attaching step, and the first inner wall final attaching step mutually integrate the flange, And a second inner backing metal, and the first and second inner walls are turned upside down and laid so that the second inner wall is located on the upper side, and a flange formed by butt welding using the second inner backing metal. The attachment of the upper end of the second inner wall to the lower surface of the base produces an intermediate assembly including the flange, the first and second inner backings, and the first and second inner walls integrated with each other. ..

In this way, in the first and second inner wall main attachment steps, the flange, the first and second inner back metals, and the first and second inner walls which are integrated with each other, respectively, Since the upper ends of the first and second inner walls are respectively attached to the lower surface of the flange by butt welding in a state where the butt welding is performed so that the butt welding can be performed easily, The manufacturing efficiency of the seismic control wall can be further improved.

Further, in the first determining step, the intermediate assembly manufactured in the second inner wall final attaching step is laid down so that the second inner wall is located on the upper side, and the lower surface of the flange and the upper end of the second inner wall are After determining the presence/absence of a defect in the welded part, the intermediate assembly is turned upside down, and the lower surface of the flange is welded to the upper end of the first inner wall in a state where the intermediate assembly is laid down so that the first inner wall is located on the upper side. The presence/absence of a defect in a part is determined. In this way, the determination of the presence or absence of a defect in the welded portion between the lower surface of the flange and the upper ends of the first and second inner walls is made by laying the intermediate assembly so that the first and second inner walls are located on the upper side. Since it is carried out in the state, it can be carried out easily, and further, the manufacturing efficiency of the damping wall can be further enhanced.

Further, at the completion of the second inner wall final attaching step, the intermediate assembly is laid down so that the second inner wall is located on the upper side, whereas in the first determining step, first, the intermediate assembly is Since the presence or absence of a defect in the welded portion between the lower surface of the flange and the upper end of the second inner wall is determined in a state in which the second inner wall is laid down so as to be located on the upper side, the intermediate assembly at the start of the first determination step. The determination can be performed as it is without turning over.

The invention according to claim 7 is the method for manufacturing a damping wall according to claim 6, wherein the number of the plurality of inner walls is 4 or more, and the backing metal includes first and second inner backing metal. After the completion of the first determination step, the first and second of the plurality of backing plates are formed on both outer sides of the inner walls respectively located on the outermost sides in the width direction of the flange of the intermediate assembly after the completion of the first determining step. One backing metal other than the second inner backing metal and another backing metal were placed by the backing metal mounting process and the backing metal mounting process for mounting on the lower surface of the flange, respectively. A first outer inner wall temporary attaching step of temporarily attaching one inner wall other than the first and second inner walls of the plurality of inner walls to one backing metal, and another one attached by the backing metal attaching step. Second outer inner wall temporary attaching step of temporarily attaching one inner wall other than the first and second inner walls of the plurality of inner walls to the backing metal, and the backing metal attaching step, first and second outer inner walls Intermediate assembly assembled by the tacking process, one backing metal, another backing metal, one inner wall and one other inner wall are laid so that one inner wall is located on the upper side. In this state, the upper end of one inner wall is attached to the lower surface of the flange by butt welding using one backing metal, the first outer inner wall mounting process, the backing metal mounting process, and the second outer inner wall temporary mounting process. And the first outer inner wall, the intermediate assembly integrated by the attaching process, the one backing metal, the other backing metal, the one inner wall and the other inner wall, and the other inner wall is turned over. Intermediates integrated with each other by attaching the upper end of the other one inner wall to the lower surface of the flange by butt welding using the other one backing metal while being laid down so as to be located on the upper side. A second outer inner wall book making step for producing a new intermediate assembly including an assembly, one backing metal, another one backing metal, one inner wall and another one inner wall, and a second outer inner wall book With the intermediate assembly manufactured by the attaching process laid down so that the other inner wall is located on the upper side, the welded portion of the welded portion by butt welding of the lower surface of the flange and the upper end of the other inner wall is formed. After determining the presence or absence of defects by non-destructive inspection, the intermediate assembly is turned upside down and laid on its side so that one inner wall is located on the upper side, but butt welding between the lower surface of the flange and the upper end of one inner wall. And a second determination step of determining the presence or absence of a defect in the welded portion by non-destructive inspection, the backing metal attaching step, the first and second outer inner wall temporary attaching steps, and the first and second outer inner wall final attaching steps. Process, and The intermediate assembly manufacturing process including the second determination process is performed by using an inner wall other than the first and second inner walls of the plurality of inner walls, and a back of the plurality of backing plates other than the first and second inner backing plates. The feature is that it is repeated for the money.

According to this structure, the number of the plurality of inner walls is four or more, and the backing metal is composed of the plurality of backing metal including the first and second inner backing metal. In addition, after the completion of the first determination step, in the backing metal attaching step, the first and the second backing metal of the plurality of backing metal are provided on both outer sides of the inner walls respectively positioned on the outermost sides in the width direction of the flange in the intermediate assembly. One backing metal other than the second inner backing metal and one other backing metal are attached to the lower surface of the flange in the arranged state. Further, in the first and second outer inner wall temporary attaching steps, the first and second inner walls of the plurality of inner walls are respectively attached to the one backing metal and the other backing metal attached in the backing metal attaching step. One inner wall other than the inner wall and one other inner wall are temporarily attached.

Also, in the first outer inner wall final attaching step, the intermediate assembly integrated by the backing metal attaching step, the first and second outer inner wall temporary attaching steps, one backing metal, and another one backing metal, With one inner wall and the other one inner wall laid out so that one inner wall is located on the upper side, the upper end of one inner wall is the lower surface of the flange by butt welding using one backing metal. Attached to. Further, in the second outer inner wall final attaching step, the backing plate attaching step, the second outer inner wall temporary attaching step and the first outer inner wall final attaching step integrate the intermediate assembly, one backing sheet, and the other one. One backing metal, one inner wall and the other inner wall are turned upside down, and the other inner wall is laid down so that the other inner wall is on the upper side. Subassemblies integrated together by attaching to the underside of the flange by butt welding with a backing, one backing, another backing, one inner wall and another inner wall A new intermediate assembly is manufactured that includes

Further, in the second determination step, the intermediate assembly manufactured by the second outer inner wall main attachment step is laid down so that the other inner wall is located on the upper side, and the lower surface of the flange and the other one are placed. After determining the presence or absence of defects in the welded portion by butt welding with the upper ends of the one inner wall by non-destructive inspection, the intermediate assembly is turned over, and one inner wall is laid down so that the inner wall is located on the upper side. The presence or absence of defects in the welded portion due to the butt welding between the lower surface of the flange and the upper end of one inner wall is determined by nondestructive inspection. Furthermore, the intermediate assembly manufacturing process including the backing metal attaching step, the first and second outer inner wall temporary attaching steps, the first and second outer inner wall final attaching steps, and the second determining step described above is used for forming a plurality of inner walls. The inner wall other than the first and second inner walls and the backing metal other than the first and second inner backing metal of the plurality of backing metal are repeatedly performed.

From the above, among the four or more inner walls, with respect to a plurality of sets of two inner walls that are symmetrically arranged on the outer sides with respect to the first and second inner backing metals, including the first and second inner walls, Each time the butt welding is completed in order from the inner side to the outer side, the nondestructive inspection of the welded portions of the two inner wall flanges can be collectively and efficiently performed. As a result, the effect of increasing the manufacturing efficiency of the seismic control wall can be effectively obtained. Further, as described in the description of the invention according to claim 1, the plurality of inner walls are sequentially attached from the central portion in the width direction of the lower surface of the flange toward both outer sides by the plurality of steps described above, so that the welding strain Can be suppressed from being unevenly generated at one side portion of the flange in the width direction, and by extension, the manufacturing efficiency of the damping wall can be further enhanced.

Also, in the first and second outer inner wall bookbinding steps, the intermediate assembly, the one backing metal, the other one backing metal, the one inner wall and the other one inner wall are integrated into one, respectively. Since one inner wall and the other one inner wall are laid down so that they are located on the upper side, the upper ends of the one inner wall and the other one inner wall are attached to the lower surface of the flange by butt welding, respectively. Butt welding can be easily performed, and the manufacturing efficiency of the seismic control wall can be further improved.

Further, in the first determining step, it is determined whether or not there is a defect in a welded portion between the lower surface of the flange and the upper ends of the one inner wall and the other one inner wall, and one inner wall and the other one inner wall are located on the upper side, respectively. As described above, since the intermediate assembly is placed in a lying state, the intermediate assembly can be easily performed, and the manufacturing efficiency of the damping wall can be further improved.

Further, at the completion of the second outer inner wall final attaching step, the intermediate assembly is laid down so that the other inner wall is located on the upper side, while in the second determining step, first, the intermediate assembly is first laid. In the state where the product is laid down so that the other inner wall is located on the upper side, it is determined whether or not there is a defect in the welded portion between the lower surface of the flange and the upper end of the other inner wall. At the start of, the determination can be performed as it is without turning over the intermediate assembly.

1 is a front view schematically showing a damping wall according to an embodiment of the present invention together with upper and lower beams of a building to which the damping wall is applied. It is a perspective view which partially shows a damping wall and shows it. It is a figure for demonstrating the process of integrating left and right side walls, a bottom wall, and a positioning member among manufacturing processes of a damping wall. It is a figure for demonstrating the process of attaching a center backing metal to a flange, and temporarily attaching a 2nd inner wall to a center backing metal among manufacturing processes of a damping wall. It is sectional drawing which shows the partition wall etc. of the back side mounted in the surface plate in the manufacturing process of a damping wall. It is sectional drawing which shows the partition wall of the back side mounted in the surface plate, the flange integrated with each other, the center backing metal, the 2nd inner wall, etc. in the manufacturing process of a damping wall. It is a figure for demonstrating the process of temporarily attaching the partition wall of the back side to the left and right side walls and the bottom wall in the manufacturing process of the damping wall. It is a figure for demonstrating the process of temporarily attaching the 1st inner wall to the center backing metal among the manufacturing processes of a damping wall. It is a figure for demonstrating the process of temporarily attaching the front partition wall to the left and right side walls and the bottom wall in the manufacturing process of the vibration control wall. It is a figure for demonstrating the process of attaching the upper end of the 1st inner wall to the lower surface of a flange by butt welding using a center backing metal among the manufacturing processes of a damping wall. In order to explain a process of manufacturing an intermediate assembly by, for example, attaching the upper end of the second inner wall to the lower surface of the flange by butt welding using a central backing metal in the manufacturing process of the damping wall. It is a figure. It is a figure for demonstrating the process of inspecting the welding part of the upper end of the 2nd inner wall of an intermediate assembly, and the lower surface of a flange by ultrasonic flaw detection inspection among the manufacturing processes of a damping wall. It is a figure for demonstrating the process of inspecting the welding part of the upper end of the 1st inner wall of an intermediate assembly, and the lower surface of a flange by ultrasonic flaw detection inspection among the manufacturing processes of a damping wall. It is a figure for demonstrating the process of attaching the back metal of the front side to the lower surface of the flange of an intermediate assembly among the manufacturing processes of a damping wall. It is a figure for demonstrating the process of attaching the back metal of the back side to the lower surface of the flange of an intermediate assembly among manufacturing processes of a damping wall. It is (a) front view and (b) side view which show a hanging metal fitting. It is sectional drawing which shows the front outer wall etc. which were mounted in the surface plate. It is sectional drawing which shows the front outer wall, front inner wall, etc. which were mounted in the surface plate. It is a figure for demonstrating the process of temporarily attaching the front inner wall etc. to the back metal of the front side of an intermediate assembly among the manufacturing processes of a damping wall. It is a figure for demonstrating the process of temporarily attaching the back inner wall etc. to the backing metal of the back side of an intermediate assembly among the manufacturing processes of a damping wall. It is a figure for demonstrating the process of temporarily attaching the back outer wall to the bottom wall of an intermediate assembly, etc. among the manufacturing processes of a damping wall. It is a figure for demonstrating the process of tightening a nut to a bolt among the manufacturing processes of a damping wall. It is a figure for demonstrating the process of attaching the upper end of the rear inner wall to the lower surface of a flange, etc. by butt welding using the backing metal of the rear side of an intermediate assembly among the manufacturing processes of a damping wall. Manufacturing a new intermediate assembly by attaching the upper end of the front inner wall to the lower surface of the flange by butt welding using the backing metal on the front side of the intermediate assembly in the manufacturing process of the damping wall It is a figure for explaining. It is a figure for demonstrating the process of inspecting the welding part of the upper end of the front inner wall of an intermediate assembly, and the lower surface of a flange by ultrasonic flaw detection in the manufacturing process of a damping wall. It is a figure for demonstrating the process of inspecting the welding part of the upper end of the rear inner wall of an intermediate assembly, and the lower surface of a flange by ultrasonic flaw detection inspection among the manufacturing processes of a damping wall. It is a figure for demonstrating the process different from the manufacturing process of embodiment among the manufacturing processes by the modification of a damping wall. In the manufacturing process of the conventional damping wall, for explaining (a) the step of attaching the first inner wall to the flange and (b) the step of attaching the second inner wall by butt welding using a backing metal, respectively. It is a figure. In the conventional manufacturing process of the seismic control wall, a step of attaching the (a) third inner wall to the flange by butt welding using a backing metal and a step of (b) attaching the fourth inner wall are respectively described. It is a figure.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the following description, for convenience, the front side and the back side of FIG. 1 are referred to as “front” and “rear” respectively, the left side and the right side of FIG. 1 are respectively referred to as “left” and “right”, and the upper side and the lower side are respectively referred to as “top”. And "below". As shown in FIGS. 1 and 2, the damping wall 1 according to the embodiment includes a housing 2 formed in a box shape that opens upward, and has a relatively small size. The accommodating portion 2 includes front and rear outer walls 3 and 4, three partition walls 5A, 5B and 5C provided between the front outer wall 3 and the rear outer wall 4 at equal intervals, and the front and rear outer walls 3, 4 and the partition wall. 5A, 5B, 5C, a left side wall 6 integrally provided at the left end, front and rear outer walls 3, 4 and partition walls 5A, 5B, 5C right side wall 7 integrally provided at the right end, and front and rear outer walls It has the bottom wall 8 integrally provided in the lower end part of 3, 4 and the partition walls 5A, 5B, 5C. Hereinafter, the partition walls 5A, 5B, and 5C are collectively referred to as "partition wall 5".

Each of the front and rear outer walls 3, 4, the partition wall 5, the left and right side walls 6, 7 and the bottom wall 8 is made of a rectangular steel plate, and the front and rear outer walls 3, 4, and the partition wall 5 are arranged in the vertical and horizontal directions. The left and right side walls 6 and 7 are vertically long and the bottom wall 8 is horizontally long. Reservoir portions 3a and 4a are provided at the upper ends of the front and rear outer walls 3 and 4, respectively, and the reservoir portions 3a and 4a respectively project forward and backward and extend slightly above the partition wall 5. ing.

Further, front and rear outer walls 3, 4 and partition wall 5 are respectively formed with insertion holes 3b, 4b, 5a penetrating in the front-rear direction (only the front outer wall 3 is shown in FIG. 2. Others will be described later). 6 to FIG. 26). A common bolt 9 is inserted into each of the insertion holes 3b, 4b, 5a from the front, and a nut 10 is tightened from the rear of the bolt 9. These bolts 9 and nuts 10 prevent the front and rear outer walls 3 and 4 from bulging forward and backward, respectively, due to the pressure of a viscous body 21 described later. It should be noted that these insertion holes 3b, 4b are provided with annular seals (not shown) for preventing leakage of the viscous body 21 described later. Further, viscous body inlets penetrating in the front-rear direction are formed at the lower end portions of the front and rear outer walls 3, 4 and the partition wall 5, respectively. It is sealed with a lid (not shown).

Further, between the edge portion of the insertion hole 3b of the front outer wall 3 and the edge portion of the insertion hole 5a of the front partition wall 5A, the edge portion of the insertion hole 5a of the partition wall 5A and the insertion hole 5a of the central partition wall 5B. Between the edge portion, between the edge portion of the insertion hole 5a of the partition wall 5B and the edge portion of the insertion hole 5a of the rear partition wall 5C, and between the edge portion of the insertion hole 5a of the partition wall 5C and the rear outer wall 4. A ring-shaped spacer 11 (not shown in FIGS. 1 and 2; see FIGS. 5 to 26 to be described later) is provided between each of them and the edge of the insertion hole 4b. These spacers 11, 11, 11, 11 are provided between the front outer wall 3 and the front partition wall 5A, between the partition wall 5A and the central partition wall 5B, and between the partition wall 5B and the rear partition wall 5C. This is for maintaining a predetermined space between the partition wall 5C and the rear outer wall 4, respectively.

Further, edges (left end portion, right end portion, and lower end portion) of the central partition wall 5B other than the upper end portions of the front surface and the rear surface, and upper end portions of the front surface of the front partition wall 5A and the rear surface of the rear partition wall 5B. Positioning members 12 made of steel are integrally provided at the edge portions (the left end portion, the right end portion, and the lower end portion) other than the above. These positioning members 12, 12, 12, 12 position the spacers 11, 11, 11, 11 between them by positioning the front and rear outer walls 3, 4 and the partition walls 5A, 5B, 5C in the front-rear direction. This is for cooperating to maintain a predetermined interval. Each positioning member 12 is made of a rod-shaped steel material having a rectangular cross section orthogonal to the length direction, and its width is equal to the length of the spacer 11, and an edge portion other than the upper end portion of the corresponding partition wall 5 is formed. It is arranged so as to frame.

Further, in the housing portion 2, a first housing chamber 2a is defined by the front outer wall 3, the front partition wall 5A, the left and right side walls 6, 7 and the bottom wall 8, and the partition wall 5A and the central partition wall are defined. 5B, the left and right side walls 6, 7 and the bottom wall 8 form the second storage chamber 2b, and the partition wall 5B, the rear side partition wall 5C, the left and right side walls 6, 7 and the bottom wall 8 form the third storage chamber 2c, respectively. The partition wall 5C, the rear outer wall 4, the left and right side walls 6 and 7, and the bottom wall 8 define a fourth storage chamber 2d. Further, a plurality of bolt holes penetrating in the vertical direction are formed at the front end portion and the rear end portion of the bottom wall 8, and these bolt holes are arranged side by side in the left-right direction.

The damping wall 1 includes a flange 15 made of a rectangular steel plate, a front inner wall 16 and a first inner wall that are partially housed in the housing 2 so as to be vertically and horizontally movable. 17, a second inner wall 18, a rear inner wall 19, and three backing plates 20A, 20B, 20C. Hereinafter, the backing metals 20A, 20B, and 20C are collectively referred to as "backing metal 20". The flange 15 is horizontally long and extends in parallel with the bottom wall 8 in the front-rear direction and the left-right direction. Further, a plurality of bolt holes penetrating in the vertical direction are formed in the front end portion and the rear end portion of the flange 15, and these bolt holes are arranged in the left-right direction.

Each of the front inner wall 16, the first inner wall 17, the second inner wall 18, and the rear inner wall 19 is made of a rectangular steel plate having the same size as each other, extends in the vertical direction and the horizontal direction, and has a length in the horizontal direction. , Smaller than that of the front and rear outer walls 3, 4. Further, the upper ends of the inner walls 16 to 19 are attached to the lower surface of the flange 15 by butt welding using the corresponding backing metal 20. The backing plate 20 is made of a steel material extending in the left-right direction and has a rectangular cross section orthogonal to the length direction thereof, and the length in the left-right direction is slightly longer than that of each of the inner walls 16 to 19. ,large.

The inner walls 16 to 19 and the backing plates 20A, 20B, and 20C are the backing plate 20B in the center, the first inner wall 17, and the back of the front side in the width direction (front-back direction) of the flange 15 from the central portion toward the front side. The metal back 20A and the front inner wall 16 are arranged in this order from the center to the rear, and the center back metal 20B, the second inner wall 18, the rear metal back 20C, and the rear inner wall 19 are alternately arranged in parallel. Are lined up. Further, the upper ends of the first and second inner walls 17, 18 are commonly provided with a backing plate 20B (hereinafter, appropriately referred to as "inner backing plate 20B") located at the center portion of the flange 15 in the width direction, and the backing plate 20B is commonly used. It is attached to the bottom surface.

Further, the front inner wall 16, the first inner wall 17, the second inner wall 18, and the rear inner wall 19 are the first accommodation chamber 2a, the second accommodation chamber 2b, the third accommodation chamber 2c, and the fourth accommodation chamber 2d in the accommodation unit 2. And a corresponding backing plate 20 between the front inner wall 16 and the first inner wall 17, between the first inner wall 17 and the second inner wall 18, and between the second inner wall 18 and the rear inner wall 19. The respective predetermined intervals are held by. A plurality of spacers 22 (not shown in FIGS. 1 and 2; see FIGS. 4 and 6 to 26 described later) are attached to the front surface and the rear surface of each of the inner walls 16 to 19. .. Each spacer 22 comes into contact with one of the corresponding front outer wall 3, partition walls 5A, 5B, 5C and rear outer wall 4 so that between the front outer wall 3 and the front inner wall 16, the front inner wall 16 and the front partition wall 5A. Between the partition wall 5A and the first inner wall 17, between the first inner wall 17 and the central partition wall 5B, between the partition wall 5B and the second inner wall 18, and between the second inner wall 18 and the rear side. Relatively small predetermined intervals are held between the partition wall 5C, between the partition wall 5C and the rear inner wall 17, and between the rear inner wall 17 and the rear outer wall 4, respectively.

Further, each of the front inner wall 16, the first inner wall 17, the second inner wall 18, and the rear inner wall 19 is formed with a plurality of horizontally elongated slots 16a, 17a, 18a, 19a penetrating in the front-rear direction (FIG. 1 and 2, only the front inner wall 16 is shown, and the other parts are shown in FIGS. Each of these elongated holes 16a to 19a is provided corresponding to the bolt 9 and has a width in the vertical direction which is considerably larger than the diameter of the bolt 9, and the bolt 9 and the spacer 11 are inserted therein. With the above configuration, the front inner wall 16, the first inner wall 17, the second inner wall 18, and the rear inner wall 19 are arranged in the vertical direction and the left-right direction with respect to the housing portion 2 within the range of these elongated holes 16a, 17a, 18a, 19a. Free to move in any direction.

Further, the damping wall 1 further includes a viscous body 21, and the viscous body 21 is composed of a fluid having a relatively high viscosity, for example, a fluid made of polyisobutylene. The viscous body 21 is filled between the front inner wall 16 and the front outer wall 3, the front partition wall 5A, the left and right side walls 6, 7 and the bottom wall 8 in the first storage chamber 2a, and the second storage chamber 2b. Between the first inner wall 17 and the partition wall 5A, the central partition wall 5B, the left and right side walls 6, 7 and the bottom wall 8, and the second inner wall 18 in the third storage chamber 2c and the partition wall 5B, rear. The space between the side partition wall 5C, the left and right side walls 6, 7 and the bottom wall 8 is respectively filled, and the rear inner wall 19 in the fourth storage chamber 2d, the partition wall 5C, the rear outer wall 4, the left and right side walls 6, It is filled between 7 and the bottom wall 8.

In the damping wall 1 having the above structure, the flange 15 is connected to the lower surface of the upper beam BU of a structure, for example, a high-rise building via the upper stud PU, and the upper surface of the lower beam BD of the building is constructed. In addition, the bottom wall 8 is connected via the lower stud PD. The upper and lower studs PU and PD are made of, for example, H-shaped steel, and the front and rear ends of the upper and lower flanges thereof, like the bottom wall 8 and the flange 15, have a plurality of bolts penetrating in the vertical direction. A hole is formed. The upper and lower beams BU and BD are made of, for example, H-shaped steel, and extend horizontally in the left-right direction. The upper and lower beams have upper and lower flanges at the front and rear ends thereof, like the bottom wall 8 and the flange 15. Plural bolt holes penetrating in the direction are formed.

In this case, the nuts (not shown) are fastened to the bolts inserted into the bolt holes of the flange 15 and the bolt holes on the lower side of the upper stud PU, respectively. Fixed. Further, by tightening nuts (not shown) to the bolts inserted into the plurality of bolt holes on the upper side of the upper stud PU and the plurality of bolt holes of the upper beam BU, the upper stud PU becomes the upper beam BU. Fixed.

Similarly, by tightening nuts (not shown) to the bolts inserted into the plurality of bolt holes of the bottom wall 8 and the plurality of bolt holes on the upper side of the lower stud PD, respectively, the bottom wall 8 is moved to the lower stud PD. Fixed to. In addition, by tightening nuts (neither shown) to the bolts inserted into the plurality of bolt holes below the lower stud PD and the plurality of bolt holes of the lower beam BD, respectively, the lower stud PD is changed to the lower beam BD. Fixed to.

Next, a method for manufacturing the damping wall 1 will be described with reference to FIGS. First, the front and rear outer walls 3 and 4, the partition wall 5, the left and right side walls 6 and 7, the bottom wall 8, the flange 15, the front and rear inner walls 16 and 19, the first and second inner walls 17 and 18, and the backing metal described above. Prepare components such as 20 for the damping wall 1. Then, the left and right ends and the lower ends of the front and rear outer walls 3 and 4 and the partition walls 5A, 5B, and 5C, and the upper and lower ends of the front and rear inner walls 16 and 19 and the first and second inner walls 17 and 18 are welded to be described later. Is processed to form a groove for the die.

Next, as shown in FIG. 3, the lower ends of the left and right side walls 6 and 7 are the left and right ends of the bottom wall 8, and the left and right ends of the central partition wall 5B are the right and left walls of the left wall 6. The lower end of the partition wall 5B is attached to the center of the upper surface of the bottom wall 8 in the width direction (front-rear direction) at the center of the left surface in the width direction (front-rear direction) by partial penetration welding. The left and right side walls 6, 7 and the bottom wall 8 are integrated with each other. Further, the positioning member 12 is attached by welding to edge portions (lower end portion, left end portion, and right end portion) other than the upper end portion of the rear surface of the partition wall 5B. The positioning member 12 has a quadrangular cross section orthogonal to the lengthwise direction, and the portion located at the lower end of the rear surface of the partition wall 5B comes into contact with the central portion in the width direction of the upper surface of the bottom wall 8. The portions located at the left end and the right end of the rear surface of the partition wall 5B are in contact with the central portions in the width direction (front-rear direction) of the right surface of the left wall 6 and the left surface of the right wall 7, respectively. Note that in FIG. 3, for the sake of convenience, a part of the hide-and-seek line is omitted.

Next, as shown in FIG. 4, an inner backing plate 20B is attached to the center of the lower surface of the flange 15 in the width direction (front-back direction) by welding. The inner backing plate 20B has a quadrangular cross section orthogonal to the lengthwise direction. In this case, with the upper surface in contact with the lower surface of the flange 15, the left and right end portions of the upper ends of the front surface and the rear surface thereof. Are attached to the left and right portions of the lower surface of the flange 15 by welding, respectively.

Next, as shown in FIG. 4, the second inner wall 18 is temporarily attached to the inner backing plate 20B attached to the lower surface of the flange 15 by welding, whereby the flange 15, the inner backing plate 20B and the second backing plate 20B are attached. The inner wall 18 is integrated. In this case, the upper end of the front surface of the second inner wall 18 is brought into contact with the rear surface of the inner backing plate 20B with a slight gap between the upper end of the second inner wall 18 and the lower surface of the flange 15. In that state, the upper end of the second inner wall 18 is temporarily attached to the rear surface of the inner backing plate 20B by welding, and the upper end of the front surface of the second inner wall 18 is welded to the rear end of the lower surface of the inner backing plate 20B. To temporarily attach. Further, the spacers 22 for the second inner wall 18 are attached to predetermined positions on the front surface and the rear surface when the second inner wall 18 is prepared as described above. This also applies to the front and rear inner walls 16 and 19 and the first inner wall 17. Note that in FIG. 4, for convenience, only the spacer 22 attached to the rear surface of the second inner wall 18 is shown.

Next, as shown in FIG. 5, the rear partition wall 5C is placed on the surface plate SF with the front surface of the partition wall 5C lying on the upper side, and the insertion hole 5a of the partition wall 5C is temporarily placed. The bolt PB is inserted from below (from the rear surface side of the partition wall 5C). Further, the spacer 11 is loosely fitted to the inserted provisional bolt PB from above, and one end of the spacer 11 is brought into contact with the front edge of the insertion hole 5a of the partition wall 5C. The temporary bolt PB is mounted on a support (not shown) so as not to fall off from the insertion hole 5a and the spacer 11.

Next, as shown in FIG. 6, the flange 15, the inner backing plate 20B, and the second inner wall 18 integrated as described with reference to FIG. 4 are placed so that the front surface of the second inner wall 18 faces upward. In a state of being laid down so as to be positioned, it is placed on the partition wall 5C placed on the surface plate SF as described above via the spacer 22. In this state, the temporary bolt PB and the spacer 11 described above are inserted into the elongated hole 18a of the second inner wall 18.

Then, as shown in FIG. 7, the central partition wall 5B, the left and right side walls 6, 7, the bottom wall 8 and the positioning member 12 integrated as described with reference to FIG. With the front surface lying on the upper side, the second inner wall 18 and the partition wall 5C arranged as described above are mounted via the spacer 22 and the temporary bolt is inserted into the insertion hole 5a of the partition wall 5B. Insert PB from below. Further, one end of the spacer 11 whose one end contacts the front edge of the insertion hole 5a of the rear partition wall 5C is brought into contact with the rear edge of the insertion hole 5a of the partition wall 5B so that the partition wall 5B The left end, the right end and the lower end of the rear partition wall 5C are connected to the left side wall 6 in a state where the positioning member 12 attached to the rear surface is in contact with the edge of the rear partition wall 5C other than the upper end of the front surface. The right surface, the left surface of the right side wall 7, and the upper surface of the bottom wall 8 are temporarily attached by welding, respectively, and the positioning member 12 is attached to the edge of the central partition wall 5B other than the upper end by welding. Further, the spacer 11 is loosely fitted to the inserted provisional bolt PB from above (from the front side of the partition wall 5B), and one end of this spacer 11 is brought into contact with the front edge of the insertion hole 5a of the partition wall 5B. Let

A portion of the positioning member 12 located at the lower end of the front surface of the partition wall 5B has its corner cut by the amount of the weld metal at the lower end of the partition wall 5B. It is in contact with the part on the front side of 5B. Although not shown, portions of the positioning member 12 located at the left end and the right end of the front surface of the partition wall 5B are located on the right side of the left side wall 6 and the left side of the right side wall 7 in front of the partition wall 5B. The parts are in contact with each other. In addition, in FIG. 7 and FIGS. 8 to 10, which will be described later, FIG. 13, FIG. 14, FIG. 24, and FIG. 25, the illustration of the left side wall 6 is omitted, and the positioning member 12 attached to the front surface of the partition wall 5B and the like. Of the three positioning members 12, 12, 12, which will be described later, the illustration of the portion located at the left end of the corresponding partition walls 5A, 5B, 5C is omitted.

Next, as shown in FIG. 8, the first inner wall 17 is placed on the partition wall 5B arranged as described above via the spacer 22 in a state where the first inner wall 17 is laid down so that its front surface is located on the upper side. In that state, the first inner wall 17 is temporarily attached to the inner backing plate 20B by welding. In this case, the upper end of the rear surface of the first inner wall 17 is brought into contact with the front surface of the inner backing plate 20B with a slight gap between the upper end of the first inner wall 17 and the lower surface of the flange 15. In that state, the upper end of the first inner wall 17 is temporarily attached to the front surface of the inner backing plate 20B by welding, and the upper end of the rear surface of the first inner wall 17 is welded to the front end of the lower surface of the inner backing plate 20B. Temporarily attach. In this state, the upper portion of the rear surface of the first inner wall 17 faces the upper portion of the front surface of the second inner wall 18, and both are arranged in parallel to each other, and the temporary bolt PB and one edge of the partition wall 5B on the front side of the partition wall 5B. The spacer 11 that comes into contact with is inserted into the long hole 17a of the first inner wall 17.

Next, as shown in FIG. 9, the partition wall 5A on the front side is laid down so that its front surface is located on the upper side, the first inner wall 17 and the partition wall 5B arranged as described above, the spacer 22 and The temporary bolts PB are inserted from below (from the rear surface side of the partition wall 5A) into the insertion holes 5a of the partition wall 5A while being placed via the positioning members 12 respectively. Further, the rear edge of the insertion hole 5a of the partition wall 5A is brought into contact with the other end of the spacer 11 whose one end is in contact with the front edge of the insertion hole 5a of the central partition wall 5B, and The left end, the right end, and the lower end of the partition wall 5A are respectively brought into contact with the positioning members 12 attached to the edges other than the upper end of the front surface of the partition wall 5B. They are temporarily attached to the right surface of the left side wall 6, the left surface of the right side wall 7 and the upper surface of the bottom wall 8 by welding. As described above, the partition walls 5A, 5B and 5C, the left and right side walls 6 and 7, the bottom wall 8, the flange 15, the first and second inner walls 17 and 18, the inner backing plate 20B, the temporary bolt PB, and the spacers 11 and 11. Are integrated with each other.

Next, as shown in FIG. 10, the partition wall 5, the left and right side walls 6, 7, the bottom wall 8, the flange 15, the first and second inner walls 17, 18, the inner backing plate 20B, etc., which are integrated with each other, are attached. , As it is, that is, in a state where it is laid down so that the front surface of the first inner wall 17 is located on the upper side and placed on the surface plate SF, the upper end of the first inner wall 17 is projected using the inner backing plate 20B. The left end, the right end and the lower end of the front side partition wall 5A are attached to the lower face of the flange 15 and the front face of the inner backing plate 20B by means of welding, and the left end, the right end and the lower end of the front side partition wall 5 are the right face of the left side wall 6 and the left face and the bottom of the right side wall 7. Each of them is attached to the upper surface of the wall 8 by partial penetration welding.

In this case, when performing the above butt welding and partial penetration welding, the weld metal welded to the front surface of the backing metal 20B for attaching the backing metal 20B to the lower surface of the flange 15 and the first inner wall 17 are welded. The weld metal welded to the lower surface of the flange 15 and the front surface of the inner backing plate 20B for temporary attachment, and the weld metal welded to the left and right side walls 6 and 7 and the bottom wall 8 for temporary attachment of the partition wall 5A are , Removed by gouging. Further, complete penetration welding is used for butt welding. These are also the butt welding for attaching the upper end of the second inner wall 18 to the lower surface of the flange 15 described later, and the partial penetration welding for attaching the partition wall 5C to the left and right side walls 6, 7 and the bottom wall 8, The same applies.

Next, as shown in FIG. 11, the partition wall 5, the left and right side walls 6, 7, the bottom wall 8, the flange 15, the first and second inner walls 17, 18, the inner backing plate 20B, etc., which are integrated with each other, It is turned upside down and placed on the surface plate SF in a state where it is laid so that the rear surface of the second inner wall 18 is located on the upper side. In that state, the upper end of the second inner wall 18 is attached (finally attached) to the lower surface of the flange 15 and the rear surface of the inner backing plate 20B by butt welding using the inner backing plate 20B, and the rear partition wall The left end, the right end and the lower end of 5C are attached to the right side of the left side wall 6, the left side of the right side wall 7 and the upper side of the bottom wall 8 by partial penetration welding, respectively, whereby partition walls 5A, 5B, 5C integrated with each other are provided. An intermediate assembly IA including left and right side walls 6, 7, a bottom wall 8, a flange 15, first and second inner walls 17, 18, an inner backing plate 20B, and spacers 11, 11 is manufactured.

In addition, in FIG. 11 and FIGS. 12, 15, 19 to 23 and 26 described later, the illustration of the right side wall 7 is omitted, and the positioning members 12 and 12 attached to the front surface and the rear surface of the partition wall 5B are omitted. Also, of the two positioning members 12, 12 described later, the illustration of the portion located at the right end of the corresponding partition walls 5A, 5B, 5C is omitted.

Next, in a state where the intermediate assembly IA is placed on the surface plate SF as it is, that is, in a state where the intermediate assembly IA is placed on the surface plate SF with the rear surface of the second inner wall 18 lying on the upper side, Using a flaw detector (not shown), the presence or absence of defects in the welded portion W2 between the upper end of the second inner wall 18, the lower surface of the flange 15, and the rear surface of the inner backing plate 20B is determined by ultrasonic flaw detection. This ultrasonic flaw detector is of a general type and has a probe 25. In this ultrasonic flaw inspection, as shown in FIG. 12, ultrasonic waves are transmitted from the probe 25 to the welding portion W2. The probe 25 receives the reflected wave of the transmitted ultrasonic wave from the welded portion W2, and the presence or absence of a defect in the welded portion W2 is determined based on the received reflected wave. Accordingly, when it is determined that the welded portion W2 has a defect, the defect is removed by gouging and repair welding is performed.

Next, as shown in FIG. 13, the intermediate assembly IA is turned upside down and placed on the surface plate SF with the front surface of the first inner wall 17 lying on the upper side. Using an ultrasonic flaw detector, the presence or absence of defects in the welded portion W1 between the upper end of the first inner wall 17, the lower surface of the flange 15, and the front surface of the inner backing plate 20B is determined by ultrasonic flaw detection. In this ultrasonic flaw inspection, as in the case of the ultrasonic flaw inspection of the welded portion W2 described above, ultrasonic waves are transmitted from the probe 25 to this welded portion W1, and the reflected ultrasonic wave from the welded portion W1 is transmitted. Is received by the probe 25, and the presence or absence of a defect in the welded portion W1 is determined based on the received reflected wave. Accordingly, when it is determined that the welded portion W1 has a defect, the defect is removed by gouging and repair welding is performed.

Next, the welding strain of the flange 15, the first and second inner walls 17, 18 generated by the butt welding described above is corrected by using a jig or the like.

Next, as shown in FIG. 14, the intermediate assembly IA was placed on the surface plate SF with the intermediate assembly IA as it was, that is, the intermediate assembly IA was laid down so that the front surface of the first inner wall 17 was located on the upper side. In this state, the front backing plate 20A is attached to the lower surface of the flange 15 by welding. The corner portion of the backing metal 20A is scraped by the amount of the weld metal of the welded portion W1 and is in contact with the weld metal and the upper end of the front surface of the first inner wall 17.

Further, the positioning member 12 is attached by welding to the edge portion other than the upper end portion of the front surface of the front partition wall 5A. A corner of the positioning member 12 located at the lower end of the front surface of the partition wall 5A has its corner cut by the amount of the weld metal at the lower end of the partition wall 5A. It is in contact with the part on the front side. Although not shown, the portions of the positioning member 12 located at the left end and the right end of the front surface of the partition wall 5A, respectively, are portions of the right surface of the left wall 6 and the left surface of the right wall 7 that are in front of the partition wall 5A. Are in contact with each other.

Next, as shown in FIG. 15, the intermediate assembly IA is turned upside down and placed on the surface plate SF in a state of being laid down so that the rear surface of the second inner wall 18 is located on the upper side. In that state, the rear backing metal 20C is attached to the lower surface of the flange 15 by welding. The corner portion of the backing metal 20C is scraped by the amount of the weld metal of the welded portion W2 and is in contact with the weld metal and the upper end of the rear surface of the second inner wall 18.

Further, the positioning member 12 is attached by welding to the edge portion other than the upper end portion of the rear surface of the rear partition wall 5C. A corner of the positioning member 12 located at the lower end of the rear surface of the partition wall 5C has its corner cut by the amount of the weld metal at the lower end of the partition wall 5C. It is in contact with the rear part. Although not shown in the drawings, the portions of the positioning member 12 located at the left end and the right end of the rear surface of the partition wall 5C are located on the rear side of the partition wall 5C on the right surface of the left side wall 6 and the left surface of the right side wall 7, respectively. The parts are in contact with each other.

Then, the left end portion of the flange 15 and the upper end portion of the left side wall 6 are connected to each other by using the hanging fitting 31, the bolt 32, and the nut 33 shown in FIG. 16, and the right end portion of the flange 15 and the upper end portion of the right side wall 7 are connected to each other. Similarly, a hanging metal fitting, a bolt, and a nut (none of which are shown) are used to connect to each other, whereby the flange 15, the backing plate 20, the first and second inner walls 17, 18 and the partition wall 5, the left and right walls are connected. The side walls 6, 7 and the bottom wall 8 of the are integrated so as not to move relative to each other.

As shown in FIG. 16, the hanging fitting 31 has a first fitting 31 a and a second fitting 31 b made of steel plates, and the width of both fittings 31 a and 31 b is equal to the width of the left side wall 6. One end of the first metal fitting 31a is attached to the left end of the lower surface of the flange 15 by welding, and the other end of the first metal fitting 31a and the one end of the second metal fitting 31b penetrate in the thickness direction thereof. At the same time, a pair of insertion holes arranged in the width direction are formed. By inserting a common bolt 32 into each of these two pairs of insertion holes and tightening a nut 33, the first and second metal fittings 31a and 31b are connected to each other. Further, the other end of the second metal fitting 31b also penetrates in the thickness direction and has a pair of insertion holes arranged in the width direction, and also penetrates the upper end of the left side wall 6 in the thickness direction. At the same time, a pair of insertion holes arranged in the width direction (front-back direction) are formed. By inserting the common bolt 32 into each of these two pairs of insertion holes and tightening the nut 33, the second metal fitting 31b and the left side wall 6 are connected to each other.

The flange 15, the backing plate 20, the first and second inner walls 17 and 18, the partition wall 5, the left and right side walls 6 and 7, and the bottom wall 8 are integrated so as not to move relative to each other. The structure is not limited to the above-mentioned hanging fitting 31, bolt 32, and nut 33, and another suitable structure may be adopted.

Next, the temporary bolt PB is removed from the insertion holes 5a, 5a, 5a of the partition walls 5A, 5B, 5C and the spacers 11 and 11, and the intermediate assembly IA is lowered from the surface plate SF.

Next, as shown in FIG. 17, the front outer wall 3 is placed on the surface plate SF in a state where the front outer wall 3 is laid down so that the rear surface thereof is located on the upper side, and the bolt 9 is inserted downward into the insertion hole 3b of the front outer wall 3. (From the front side of the front outer wall 3). Further, the spacer 11 is loosely fitted to the inserted bolt 9 from above, and one end of the spacer 11 is brought into contact with the rear edge of the insertion hole 3b. The bolt 9 is mounted on a support (not shown) so as not to fall off from the insertion hole 3b and the spacer 11.

Next, as shown in FIG. 18, the front inner wall 16 was placed on the surface plate SF in a state where the front inner wall 16 was laid so that its rear surface was located on the upper side, and was also mounted on the surface plate SF as described above. It is placed on the front outer wall 3 via a spacer 22. In this state, the bolt 9 and the spacer 11 are inserted into the long hole 16a of the front inner wall 16.

Next, as shown in FIG. 19, the intermediate assembly IA to which the backing plates 20A, 20C and the like are attached is laid on the surface plate SF in a state where the rear surface of the partition wall 5C on the rear side is laid on the upper side. The spacer 22 and the positioning member 12 are respectively placed on the front inner wall 16 and the front outer wall 3 placed as described above. Further, the bolts 9 are inserted into the insertion holes 5a, 5a, 5a of the front partition wall 5A, the central partition wall 5B and the rear partition wall 5C, and further between the front partition wall 5A and the central partition wall 5B. Other than the spacer 11 which is inserted into the spacer 11 between the partition wall 5B and the rear partition wall 5C and whose one end is in contact with the rear edge of the insertion hole 3b of the front outer wall 3. The end portion is brought into contact with the front edge portion of the insertion hole 5a of the front partition wall 5A.

Further, the upper end of the rear surface of the front inner wall 16 is brought into contact with the front surface of the backing metal 20A while leaving a slight gap with the lower surface of the flange 15, and the edge portion other than the upper end portion of the rear surface of the front outer wall 3 is The positioning member 12 attached to the front surface of the front partition wall 5A is contacted. In that state, the upper end of the front inner wall 16 is temporarily attached to the front surface of the backing plate 20A, and the upper end of the rear surface of the front inner wall 16 is temporarily attached to the front end of the lower surface of the backing plate 20A by welding. , The right end and the lower end are temporarily attached to the right surface of the left side wall 6, the left surface of the right side wall 7 and the upper surface of the bottom wall 8 by welding, respectively.

Next, as shown in FIG. 20, the rear outer wall 3, the front inner wall 16, the intermediate assembly IA, etc. are left as they are, and the rear inner wall 19 is laid down so that the rear surface thereof is located on the upper side. It is placed on the partition wall 5C via the spacer 22. Further, the upper end of the front surface of the rear inner wall 19 is brought into contact with the rear surface of the backing plate 20C with a slight gap left between the lower surface of the flange 15 and the upper end of the rear inner wall 19 in this state. The upper end of the front surface of the rear inner wall 19 is temporarily attached to the rear surface by welding to the rear end of the lower surface of the backing plate 20C. Further, the spacer 11 is loosely fitted to the bolt 9 from above (from the rear surface side of the partition wall 5C), and one end of this spacer 11 is brought into contact with the rear edge portion of the insertion hole 5a of the partition wall 5C. In this state, the bolt 9 and the spacer 11 that comes into contact with the rear edge of the insertion hole 5a of the partition wall 5C are inserted into the elongated hole 19a of the rear inner wall 19.

Next, as shown in FIG. 21, with the front outer wall 3, the front inner wall 16, the intermediate assembly IA, the rear inner wall 19 and the like as they are, the rear outer wall 4 is laid down so that its rear surface is located on the upper side. The spacer 22 and the positioning member 12 are placed on the rear inner wall 19 and the partition wall 5C, respectively. Further, the bolt 9 is inserted into the insertion hole 4b of the rear outer wall 4, and the other end of the spacer 11 whose one end is in contact with the rear edge of the insertion hole 5a of the rear partition wall 5C is connected to the rear outer wall 4 While contacting the front edge of the insertion hole 4b, the edge of the rear outer wall 4 other than the upper end is brought into contact with the positioning member 12 attached to the rear surface of the rear partition wall 5C. In this state, the left end, the right end and the lower end of the rear outer wall 4 are temporarily attached to the right surface of the left side wall 6, the left surface of the right side wall 7 and the upper surface of the bottom wall 8 by welding.

Next, as shown in FIG. 22, the nuts 10 are attached to the bolts 9 from above (the rear surface side of the rear outer wall 4) while the front and rear outer walls 3, 4 and the front and rear inner walls 16, 19 and the intermediate assembly IA are left as they are. From) Tighten. As described above, the front and rear outer walls 3 and 4, the front and rear inner walls 16 and 19, the backing plates 20A and 20C, and the intermediate assembly IA are integrated with each other.

Then, as shown in FIG. 23, the front and rear outer walls 3 and 4, which are integrated with each other, the front and rear inner walls 16 and 19, the backing plates 20A and 20C, the intermediate assembly IA, etc. are left as they are, that is, the rear With the outer wall 4 and the rear inner wall 19 lying on the surface plate SF so as to be positioned on the upper side, the upper end of the rear inner wall 19 is butt-welded using the backing metal 20C to the lower surface and the backing of the flange 15. The gold 20C is attached (mainly attached) to the rear face of the gold 20C, and the left end, right end and lower end of the rear outer wall 4 are attached to the right face of the left side wall 6, the left face of the right side wall 7 and the upper face of the bottom wall 8 by partial penetration welding, respectively.

In this case, when the butt welding and the partial penetration welding are performed, the weld metal welded to the rear surface of the backing metal 20C for attaching the backing metal 20C to the lower surface of the flange 15 and the temporary inner wall 19 The weld metal welded to the rear surface of the backing metal 20C for attachment, and the weld metal welded to the left and right side walls 6, 7 and the bottom wall 8 for temporary attachment of the rear outer wall 4 are removed by gouging. Further, complete penetration welding is used for butt welding. The same applies to butt welding for attaching the upper end of the front inner wall 16 to the lower surface of the flange 15 described later and partial penetration welding for attaching the front outer wall 3 to the left and right side walls 6, 7 and the bottom wall 8. Applies to.

Next, as shown in FIG. 24, the front and rear outer walls 3 and 4, the front and rear inner walls 16 and 19, the backing plates 20A and 20C, and the intermediate assembly IA, which are integrated with each other, are turned upside down and the front outer wall 3 and The front inner wall 16 is placed on the surface plate SF in a state of being laid down so as to be located on the upper side. In that state, the upper end of the front inner wall 16 is attached to the lower surface of the flange 15 and the front surface of the backing plate 20A by butt welding using the backing plate 20A, and the left end, right end and lower end of the front outer wall 3 are connected to the left side wall. 6, the front and rear outer walls 3, 4 and the front and rear inner walls 16, 19, backing plates 20A, 20C, and intermediate assemblies by attaching them to the left side of 6 and the right side of the right side wall 7 and the upper side of the bottom wall 8 by partial penetration welding. The IA, the bolt 9, the nut 10, etc. are manufactured as a new intermediate assembly IA'.

Next, in a state in which the intermediate assembly IA' is placed on the surface plate SF as it is, that is, in a state in which the intermediate assembly IA' is laid down on the surface plate SF so that the front inner wall 16 is located on the upper side, the ultrasonic flaw detector is installed. The presence or absence of a defect in the welded portion WF between the upper end of the front inner wall 16 and the lower surface of the flange 15 and the front surface of the backing metal 20A is determined by ultrasonic flaw detection. In this ultrasonic flaw inspection, as shown in FIG. 25, an ultrasonic wave is transmitted from the probe 25 to the welding portion WF, and the reflected wave from the welding portion WF of the transmitted ultrasonic wave is received by the probe 25. At the same time, the presence or absence of a defect in the welded portion WF is determined based on the received reflected wave. Accordingly, when it is determined that the welded portion WF has a defect, the defect is removed by gouging and repair welding is performed.

Next, as shown in FIG. 26, the intermediate assembly IA′ is turned upside down, and is laid down on the surface plate SF so that the rear inner wall 19 is located on the upper side. The presence or absence of a defect in the welded portion WB between the upper end of the inner wall 19, the lower surface of the flange 15, and the rear surface of the backing plate 20C is determined by ultrasonic flaw detection. In this ultrasonic flaw inspection, ultrasonic waves are transmitted from the probe 25 to the welded portion WB, the reflected wave from the welded portion WB of the transmitted ultrasonic waves is received by the probe 25, and the received reflected wave is received. Based on the above, it is determined whether or not there is a defect in the welded portion WB. Thus, when it is determined that the welded portion WB has a defect, the defect is removed by gouging and repair welding is performed.

Next, the welding strains of the flange 15 and the front and rear inner walls 16 and 19 generated by the butt welding described above are corrected by using a jig or the like.

Next, the intermediate assembly IA' is lowered from the surface plate SF, and is placed in the workplace with the flange 15 standing upright. In that state, the front and rear outer walls 3, 4, the partition wall 5, the left and right side walls 6, 7 and the bottom wall 8 are formed in the first to fourth storage chambers 2a to 2d as described above. Tap water is injected from the viscous body injection port 4 to wash the first to fourth storage chambers 2a to 2d, and the liquid surface is located at a predetermined position of the pool portions 3a and 4a of the front and rear outer walls 3 and 4. Check the amount of tap water required for.

Then, tap water is discharged from the first to fourth storage chambers 2a to 2d, and the first to fourth storage chambers 2a to 2d are sufficiently dried, and then the first to fourth storage chambers 2a to 2d are described above. The viscous body 21 for the amount of water confirmed as described above is injected from the viscous body inlets of the front and rear outer walls 3, 4. After the injection of the viscous material 21 is completed, the viscous material injection ports are sealed with the lid.

Next, a cover (neither is shown) is attached to each of the holders provided on the front and rear inner walls 16 and 19. These covers are for preventing foreign substances such as water and dust from mixing into the viscous body 21 in the reservoirs 3a, 4a from above, and the holder described above protects the front and rear inner walls 16, 19 from each other. At the time of preparation, they are provided on the upper part of the front surface and the rear surface.

With the above, the damping wall 1 is completed. In addition, the above-mentioned suspension fitting 31, bolt 32, and nut 33 (same for the right side) are kept attached until the damping wall 1 is connected to an object such as upper and lower beams BU and BD. , It is connected and then removed. By removing the hanging fitting 31, the bolt 32, and the nut 33 in this manner, the flange 15, the front and rear inner walls 16 and 19, and the first and second inner walls 17 and 18 become the front and rear outer walls 3 and 4, and the partition wall 5. , The left and right side walls 6 and 7, etc., can be moved freely as described above.

As described above, since the damping wall 1 is configured to be relatively small, its weight is relatively small. For this reason, in the manufacturing process of the damping wall 1 described above, the work of placing various components on the surface plate SF or turning over the components such as the integrated intermediate assembly IA is performed. It is performed using the human power of the worker or an auxiliary device.

As described above, in the seismic control wall 1 according to the embodiment, the housing portion 2 is formed in a box shape that opens upward and has the first to fourth housing chambers 2a to 2d, and It is connected to the lower beam BD. Further, the flange 15 made of steel material extends in the left-right direction and is connected to the upper beam BU above the lower beam BD. Further, each of the front inner wall 16, the first inner wall 17, the second inner wall 18, and the rear inner wall 19 which are made of a steel plate and are provided corresponding to the first to fourth storage chambers 2a to 2d It extends in the left-right direction, and its upper end is attached to the lower surface of the flange 15 by butt welding using the backing metal 20. Further, the portions other than the upper end portions of the inner walls 16 to 19 are accommodated in the corresponding first to fourth accommodation chambers 2a to 2d from above in the left-right direction so as to be movable.

Further, a viscous body 21 is filled between the housing portion 2 and each of the front inner wall 16, the first inner wall 17, the second inner wall 18, and the rear inner wall 19 in each of the first to fourth storage chambers 2a to 2d. ing. With the above configuration, in the seismic control wall 1, when a relative displacement in the left-right direction occurs between the upper and lower beams BU and BD as the building vibrates due to, for example, an earthquake or the like, the inner walls 16 to 19 of these are displaced accordingly. Moves in the left-right direction with respect to the housing portion 2, and the shear resistance of the viscous body 21 acts on the upper and lower beams BU and BD via the inner walls 16 to 19 and the housing portion 2, respectively, thereby suppressing building vibration. To be done.

Further, the front inner wall 16, the first inner wall 17, the second inner wall 18, the rear inner wall 19 and the backing plates 20A, 20B, 20C are arranged in the width direction (front-back direction) of the flange 15 from the center portion in the width direction of the flange 15. The backing metal and the inner wall are alternately arranged toward both outer sides, and the inner walls 16 and 19 on the front and rear sides are different from the conventional case described above (see FIG. 29B) on the outermost sides, respectively. It is arranged.

In addition, as described with reference to FIGS. 4, 6, 8, 10, and 11, first, the inner backing plate 20</b>B, which is the backing plate located at the center of the flange 15 in the width direction, is the flange. After being attached to the lower surface of 15, the first and second inner walls 17 and 18 are temporarily attached to the inner backing plate 20B by welding, and thereafter, the upper ends of the first and second inner walls 17 and 18 are set to the inner back surface. It is attached to the underside of the flange 15 by butt welding with the dowel 20B, thereby producing the intermediate assembly IA. After that, as described with reference to FIGS. 12 and 13, the presence or absence of defects in the welded portions W1 and W2 between the lower surface of the flange 15 and the upper ends of the first and second inner walls 17 and 18 by butt welding is extremely high. Determined by sonic flaw detection.

Thereafter, as described with reference to FIGS. 14 and 15, the front backing metal 20A and the rear backing metal 20C are arranged on both outer sides of the first and second inner walls 17 and 18, respectively. Then, the front and rear inner walls 16, 19 are temporarily attached to the front and rear backing plates 20A, 20B as described with reference to FIGS. 19 and 20. It Thereafter, as described with reference to FIGS. 23 and 24, the front and rear inner walls 16 and 19 are attached to the lower surface of the flange 15 by butt welding using the front and rear backing plates 20A and 20B, respectively. , Thereby producing a new intermediate assembly IA'.

Due to the above, unlike the conventional case, after the butt welding of one inner wall and the ultrasonic flaw detection of the welded part are completed, the butt welding of the adjacent inner wall and the ultrasonic flaw detection of the welded part are not performed. Butt welding of two sets of two inner walls symmetrically arranged about the inner backing plate 20B, that is, the first and second inner walls 17, 18 and the front inner wall 16 and the rear inner wall 19, respectively. After the above, the ultrasonic flaw inspections of the welded portions W1, W2, WF, and WB with the flanges 15 can be collectively and efficiently performed. Therefore, the effect that the manufacturing efficiency of the damping wall 1 can be improved can be effectively obtained.

Further, as described above, the front inner wall 16, the first inner wall 17, the second inner wall 18, and the rear inner wall 19 are different from the above-described conventional manufacturing method in that they face the outer side from the center portion in the width direction of the lower surface of the flange 15. Therefore, the welding strain can be suppressed from being unevenly generated in a portion of the flange 15 on one side in the width direction. As a result, the time required to correct the welding strain of the flange 15 can be shortened, so that the manufacturing efficiency of the damping wall 1 can be further improved.

Further, since the backing metal for attaching the first and second inner walls 17, 18 is composed of a single common inner metal backing metal 20B, it is possible to compare the backing metal with a separate backing metal. As a result, the number of parts of the damping wall 1 can be reduced, and the manufacturing efficiency of the damping wall 1 can be further improved.

In addition, as described with reference to FIGS. 10 and 11, the flange 15, the inner backing plate 20B, the first and second inner walls 17 and 18 which are integrated with each other, the first and second inner walls 17 and 18 are combined. Since the upper ends of the first and second inner walls 17 and 18 are respectively attached to the lower surface of the flange 15 by butt welding in a state in which the butt welding is performed so as to be located on the upper side, these butt welding can be easily performed. Therefore, the manufacturing efficiency of the damping wall 1 can be further improved.

Further, as described with reference to FIGS. 12 and 13, it is determined whether or not there is a defect in the welded portions W1 and W2 between the lower surface of the flange 15 and the first and second inner walls 17 and 18, respectively. Since it is performed with the intermediate assembly IA lying down so that the inner walls 17 and 18 are located on the upper side, it can be performed easily, and thus the manufacturing efficiency of the vibration control wall 1 can be further enhanced. Furthermore, when the attachment of the upper end of the second inner wall 18 to the lower surface of the flange 15 by butt welding is completed, the intermediate assembly IA is laid down so that the second inner wall 18 is located on the upper side. On the other hand, after the attachment by the butt welding, the presence or absence of a defect in the welded portion W2 between the lower surface of the flange 15 and the second inner wall 18 is determined. Therefore, this determination is performed without turning over the intermediate assembly IA. It can be carried out.

Further, as described with reference to FIGS. 23 and 24, the intermediate assembly IA integrated with each other, the backing plates 20A and 20B, and the front and rear inner walls 16 and 19 are arranged so that the front and rear inner walls 16 and 19 are on the upper side. Since the upper ends of the front and rear inner walls 16 and 19 are attached to the lower surface of the flange 15 by butt welding in a state in which the butt welding is performed, the butt welding can be easily performed. As a result, the manufacturing efficiency of the damping wall 1 can be further improved.

Further, as described with reference to FIGS. 25 and 26, the presence or absence of a defect in the welded portions WF and WB between the lower surface of the flange 15 and the front and rear inner walls 16 and 19 is determined by the front and rear inner walls 16 and 19, respectively. Since the intermediate assembly IA′ is laid down so as to be located on the upper side and the intermediate assembly IA′ is laid down, it can be easily performed, and the manufacturing efficiency of the damping wall 1 can be further improved. Further, when the attachment of the upper end of the front inner wall 16 to the lower surface of the flange 15 by butt welding is completed, the intermediate assembly IA′ is laid down so that the front inner wall 16 is located above. Following this butt-welding attachment, the presence or absence of a defect in the welded portion WF between the lower surface of the flange 15 and the upper end of the front inner wall 16 is determined, so this determination is made without turning over the intermediate assembly IA'. It can be done as is.

Further, as described with reference to FIGS. 5 to 15 and FIGS. 17 to 26, the front and rear outer walls 3, 4 and the partition wall 5 and the front and rear inner walls 16, 19, and the first and second inner walls 17, 18 are formed. , With their main surfaces (front surface or rear surface) laid on top of each other in a state of being laid down so that the spacer 11, the positioning member 12 and the spacer 22 are in contact with the corresponding main surfaces of the wall, The front and rear outer walls 3, 4 and the partition wall 5 are attached to the left and right side walls 6, 7 and the bottom wall 8, and the front and rear inner walls 16, 19 and the first and second inner walls 17, 18 are attached to the flange 15. Done. Thereby, the spacer 11, the positioning member 12, and the spacer 22 are surely brought into contact with the main surfaces of the corresponding walls by the gravity acting on the respective walls such as the first and second inner walls 17 and 18, that is, Each wall can be properly attached to an object such as the flange 15 in a state where the wall is reliably positioned in the front-rear direction.

Next, with reference to FIG. 27, regarding the manufacturing method of the damping wall according to the modified example of the embodiment, steps different from the manufacturing method of the embodiment will be described. In this modification, the first and second inner walls 17, 18 are attached to the flange 15 by butt welding, and the front and rear inner walls 16, 19 are attached to the flange 15 by butt welding. The first and second inner walls 17 and 18 and the front and rear inner walls 16 and 19 are constrained by a restraint tool 41 and a pair of weights 42 and 42 shown in FIG. 27 so as not to be deformed by welding strain.

As shown in FIG. 27, the restraint tool 41 has a pair of body parts 41a, 41a, bolts 41b, 41b, and nuts 41c, 41c. Each body 41a is made of a metal rod and has a length larger than the length of the front and rear inner walls 16, 19 and the first and second inner walls 17, 18 in the left-right direction. The cross section orthogonal to the length direction has a rectangular shape. In addition, a protrusion 41d that obliquely protrudes in a direction orthogonal to the length direction is integrally provided at a central portion of one of the pair of body portions 41a, 41a in the length direction. An insertion hole is formed at one end and the other end of each 41a in the length direction. Each of the pair of weights 42, 42 is made of a metal rod having a relatively large specific gravity.

When attaching the first inner wall 17 to the flange 15 by butt welding, as shown in FIG. 27, one and the other of the pair of main body portions 41a, 41a separate the first and second inner walls 17, 18 from each other. With the flange 15 sandwiched in the width direction, one of the pair of bolts 41b and 41b is inserted into the insertion hole of one end of the pair of body portions 41a and 41a, and the other of the pair of bolts 41b and 41b is paired with the pair of body portions. The nuts 41c are tightly fastened to the bolts 41b while being inserted into the insertion holes of the other ends of the bolts 41a, 41a. As a result, the first and second inner walls 17, 18 are sandwiched and constrained by the pair of main body portions 41a, 41a of the restraint tool 41 in the width direction of the flange 15. Further, the protruding portion 41d of the one body portion 41a contacts the front edge of the lower surface of the flange 15. Further, the pair of weights 42, 42 are leaned against the front edge of the flange 15 and the front surface of the first inner wall 17 located on the upper side so as to be in contact with each other in an obliquely extended state. The above-mentioned state is continued until the heat of the weld metal of the welded portion W1 is completely cooled after the butt welding of the first inner wall 17 to the flange 15 is completed.

On the other hand, although not shown, at the time of attaching the second inner wall 18 to the flange 15 by butt welding, the second and first inner walls 18, 17 are connected to each other by one and the other of the pair of main body portions 41a, 41a. One of the pair of bolts 41b and 41b is inserted into the insertion hole of one end of the pair of main body portions 41a and 41a while being sandwiched in the width direction of 15, and the other of the pair of bolts 41b and 41b is inserted into the pair of main body portion 41a. , 41a, and nuts 41c are tightly tightened to the bolts 41b. As a result, the second and first inner walls 18, 17 are sandwiched and constrained by the body portions 41a, 41a of the restraint tool 41 in the width direction of the flange 15. Further, the protruding portion 41d of the one main body portion 41a contacts the rear edge of the lower surface of the flange 15. Further, the pair of weights 42, 42 are leaned against the rear edge of the flange 15 and the front surface of the second inner wall 18 located on the upper side so as to be in contact with each other in an obliquely extended state. The above-described state is continued until the time for completely cooling the heat of the weld metal of the welded portion W2 has passed after the butt welding of the second inner wall 18 to the flange 15 is completed.

By the restraint of the first and second inner walls 17 and 18 by the restraint tool 41 as described above, after the butt welding of both 17 and 18 is completed, the weld metal of the welded portions W1 and W2 shrinks (deforms). It is prevented that the first and second inner walls 17, 18 are deformed away from each other toward the outer side in the width direction of the flange 15 due to this.

Further, the protrusion 41 d contacts the front edge and the rear edge of the lower surface of the flange 15, respectively, and the weights 42, 42 contact the front edge of the lower surface of the flange 15 and the upper surface of the first inner wall 17, and at the same time of the flange 15. By contacting the rear edge of the lower surface and the upper surface of the second inner wall 18, the protrusion 41d and the weights 42, 42 function like a refill rod, so that the butt welding of the first and second inner walls 17, 18 can be performed. After the completion, the front end portion and the rear end portion of the flange 15 are respectively deformed so as to be curved toward the first and second inner walls 17 and 18 due to the contraction of the weld metal of the welded portions W1 and W2. To be prevented.

Further, also when attaching the front and rear inner walls 16 and 19 to the flange 15 by butt welding, the restraint tool 41 and the weights 42 and 42 are similar to the first and second inner walls 17 and 18 in the front and rear direction. Applied to the inner walls 16, 19 of the. This causes the front and rear inner walls 16 and 19 to be deformed away from each other outward in the width direction of the flange 15 or the front end portion of the flange 15 due to the contraction of the weld metal of the welded portions WF and WB. Also, the rear end portions are prevented from being deformed so as to be curved toward the front and rear inner walls 16 and 19, respectively.

The present invention is not limited to the embodiment described above and can be implemented in various modes. For example, in the embodiment, the plurality of inner walls in the present invention are constituted by the front inner wall 16, the first inner wall 17, the second inner wall 18, and the rear inner wall 19, and the number is 4, but the number of inner walls is The number is not limited and may be any number as long as it is plural. For example, when the number of the inner walls is 2, the front and rear partition walls (5A, 5C) are replaced by the front and rear outer walls (3, 4), and the description is given with reference to FIGS. 3 to 13 and 16. The vibration control wall is manufactured by performing the same manufacturing process. When the number of inner walls is 3, for example, the front inner wall (16) is deleted and the front outer wall (3) is used instead of the front partition wall (5A), or the rear inner wall (19) is used. By removing and using the rear outer wall (4) in place of the rear partition wall (5C), the manufacturing process described with reference to FIGS. ..

Further, when the number of inner walls is 5, for example, after temporarily attaching one partition wall to the bottom wall (8) instead of the rear outer wall (4) in the manufacturing process described with reference to FIG. A new intermediate assembly is manufactured by performing the manufacturing process described with reference to FIGS. 23 to 26 in the same manner. Then, one backing metal was attached to the lower surface of the flange (15) in a state of being arranged on the rear side of the rear inner wall (19), and one inner wall was temporarily attached to this backing metal and used. It is attached to the bottom surface of the flange by butt welding, and the welded part is inspected for defects by nondestructive inspection. Next, the rear outer wall is attached to the bottom wall, etc., the nut (10) is tightened to the bolt (9), and the viscous body (21) is injected into the storage chamber (2) as described above. As a result, the damping wall is manufactured.

Further, when the number of inner walls is an even number (n) of 6 or more, for example, with respect to components such as n-2 inner walls located inside the width direction of the flange, refer to FIGS. 3 to 16. The manufacturing process described above is repeated in the same manner from the inner side to the outer side in the width direction of the flange (15) while inserting and removing the temporary bolt (PB), and the remaining innermost two innermost walls and outermost two outermost walls. The damping wall is manufactured by performing the manufacturing process described with reference to FIGS. 17 to 26 for the components such as the outer wall of FIG. Furthermore, when the number of inner walls is an odd number (n+1) of 7 or more, for example, among the plurality of inner walls, n inner walls or the like located at a portion other than the rear end portion in the width direction of the flange. With regard to the above, assembling is performed in the same manner as in the case where the number of inner walls is an even number of 6 or more, and the remaining one component such as the inner wall is assembled in the same manner as in the case where the number of inner walls is 5 described above.

In the embodiment, the damping wall 1 is manufactured by combining the front and rear inner walls 16 and 19, the first and second inner walls 17 and 18, and the front and rear outer walls 3 and 4 and the partition wall 5. After mounting the multiple inner walls to the flange by butt welding using the backing metal and completing the nondestructive inspection of those welded parts, the front and back of the flange, the backing metal and the multiple inner walls integrated with each other The seismic control wall may be manufactured by combining the outer wall and the partition wall. Further, in the embodiment, the front and rear inner walls 16 and 19, and the first and second inner walls 17 and 18 are attached to the flange 15 in a state of being laid down, but they are suspended by a crane or the like so as not to move. At the same time, the inner wall may be erected and temporarily attached to the backing metal, and may be attached to the lower surface of the flange by butt welding using the backing metal. In that case, the bottom wall (8) and the like are placed on the surface plate, and the front and rear outer walls (3, 4) and the partition wall (5) are attached to the bottom wall and the like in a state of standing like the inner wall. To be

In addition, in the embodiment, the first inner wall 17 is located on the front side and the second inner wall 18 is located on the rear side. However, conversely, the first inner wall 17 is located on the rear side and the second inner wall 18 is located on the rear side. They may be located on the front side, respectively. Furthermore, in the embodiment, the backing plate 20 is integrally provided on the lower surface of the flange 15 by welding, but the flange and the backing plate may be integrally formed by casting. Alternatively, the backing plate may be integrally provided on the lower surface of the flange by screwing the bolt into the other of the backing plate and the flange through one of the backing plate and the flange. Alternatively, the backing plate may be integrally provided on the lower surface of the flange by fitting a convex part provided on the other side of the backing plate and the flange into a recess provided on one of the backing plate and the flange. Further, in the embodiment, the backing metal for mounting the first and second inner walls 17, 18 (the first and second inner backing metal in the present invention) is a single inner backing metal 20B common to each other. However, the backing metal may be separate from each other.

Furthermore, in the embodiment, the nondestructive inspection for determining the presence or absence of a defect in the welded portions W1, W2, WF, and WB is an ultrasonic flaw detection inspection, but other suitable inspections such as a radiation transmission inspection may be performed. .. Further, in the embodiment, the viscous body 20 is a fluid made of polyisobutylene, but it may be another suitable viscous body, such as silicone oil. Further, in the embodiment, the flange 15 and the housing portion 2 are connected to the upper and lower beams BU and BD via the upper and lower studs PU and PD, respectively, but may be directly connected. Further, in the embodiment, the first and second parts in the present invention are the lower beam BD and the upper beam BU of the building, respectively, but they may be other appropriate parts of the structure, for example, the underground structure of the structure. It may be a body or foundation beam. In addition, the detailed configuration can be appropriately changed within the scope of the present invention.

BU upper beam (2nd part)
BD lower beam (first part)
1 Seismic control wall 2 Storage part 2a First storage chamber (plural storage chambers)
2b Second storage chamber (plural storage chambers)
2c Third storage chamber (plural storage chambers)
2d Fourth storage chamber (plural storage chambers)
16 Front inner wall (multiple inner walls, one other inner wall)
17 First inner wall (plural inner walls)
18 Second inner wall (plural inner walls)
19 Rear inner wall (multiple inner walls, one inner wall)
20A Back deposit (multiple back deposit, one other back deposit)
20B Back deposit (several back deposits)
20B inner backing metal (multiple inner backing metal, first inner backing metal, second inner backing metal)
20C back deposit (multiple back deposits, one back deposit)
21 Viscous Material IA Intermediate Assembly W1 Welding Part W2 Welding Part IA' Intermediate Assembly WF Welding Part WB Welding Part

Claims (7)

A damping wall for suppressing vibration of the structure, which is provided between a first part in a system including a structure and a second part above the first part,
An accommodating portion that is formed in a box shape that opens upward, has a plurality of accommodating chambers, and is coupled to the first portion,
A flange made of steel, extending in the horizontal direction, and connected to the second portion,
A plurality of inner walls made of a steel plate and provided corresponding to the plurality of storage chambers,
A backing metal made of steel and provided corresponding to the plurality of inner walls,
Each of the plurality of inner walls extends in the vertical direction and the horizontal direction, the upper end is attached to the lower surface of the flange by butt welding using the backing metal, and a portion other than the upper end corresponds to the upper side. Each of the plurality of accommodation chambers is accommodated in a horizontally movable manner,
The plurality of inner walls and the backing metal, in the width direction of the flange, from the center portion in the width direction of the flange toward both outer sides, alternately arranged in the order of the backing metal and the inner wall, One of the plurality of inner walls is arranged on the outermost sides in the width direction,
The seismic control wall further comprising a viscous body provided between the accommodation section and each of the plurality of inner walls in each of the plurality of accommodation chambers. The number of the plurality of inner walls is 4 or more,
The backing metal is composed of a plurality of backing metal that is one less than the number of the inner walls,
Among the plurality of backing plates, the inner backing plate that is the single backing plate located at the center portion in the width direction of the flange is common, and the inner backing plate of the plurality of inner walls is The damping wall according to claim 1, wherein the first inner wall and the second inner wall located on both sides are attached to the lower surface of the flange. A manufacturing method for manufacturing the damping wall according to claim 1,
An inner backing metal manufacturing step in which a first inner backing metal and a second inner backing metal as the backing metal are integrally provided at a central portion of the lower surface of the flange in the width direction of the flange,
A first inner wall provisional attaching step of temporarily attaching the first inner wall, which is one of the plurality of inner walls, to the first inner inner backing metal by welding after the completion of the inner backing metal manufacturing step;
A second inner wall temporary attaching step of temporarily attaching the second inner wall, which is the other one of the plurality of inner walls, to the second inner backing metal by welding after the completion of the inner backing metal manufacturing step;
After the completion of the first inner wall temporary attaching step, a first inner wall main attaching step of attaching the upper end of the first inner wall to the lower surface of the flange by butt welding using the first inner backing metal,
After the completion of the second inner wall temporary attaching step, a second inner wall main attaching step of attaching the upper end of the second inner wall to the lower surface of the flange by butt welding using the second inner backing metal,
After the completion of the first and second inner wall main attachment steps, the presence or absence of each defect in the welded portion due to the butt welding between the lower surface of the flange and the upper ends of the first and second inner walls is determined by nondestructive inspection. A first determination step,
A method for manufacturing a seismic control wall, comprising: The method for manufacturing a damping wall according to claim 3, wherein the first and second inner backing plates are constituted by a single common backing plate. The number of the plurality of inner walls is 4 or more,
The backing metal is composed of a plurality of backing metal including the first and second inner backing metal,
After the completion of the first determination step, one of the plurality of backing plates other than the first and second inner backing plates is provided on both outer sides of the inner walls located at the outermost sides in the width direction of the flange. A backing metal mounting step of mounting one backing metal and another one backing metal on the lower surface of the flange in a state where they are respectively arranged,
A first outer inner wall temporary attaching step of temporarily attaching one inner wall other than the first and second inner walls of the plurality of inner walls to the one backing metal attached by the backing metal attaching step;
A second outer inner wall provisional temporary attachment of one inner wall other than the first and second inner walls of the plurality of inner walls to the one other backing metal attached in the backing metal attaching step. Attaching process,
After the completion of the first outer inner wall provisional attaching step, a first outer inner wall main attaching step of attaching the upper end of the one inner wall to the lower surface of the flange by butt welding using the one backing metal,
After the completion of the second outer inner wall temporary attaching step, the second outer inner wall final attaching step of attaching the upper end of the other inner wall to the lower surface of the flange by butt welding using the other one backing metal When,
After the completion of the first and second outer inner wall main-bonding steps, non-destructive inspection is performed to determine whether or not there is any defect in the welded portion by butt welding of the flange and the upper end of the one inner wall and the other one inner wall. A second determination step of determining,
The backing metal attaching step, the first and second outer inner wall temporary attaching steps, the first and second outer inner wall final attaching steps, and the second determining step, the intermediate assembly manufacturing step, the plurality of inner walls Of the inner walls other than the first and second inner walls, and backing metal other than the first and second inner backing metal of the plurality of backing metal, are repeatedly performed. The method for manufacturing the damping wall according to claim 3 or 4. In the first inner wall main attaching step, the inner backing metal manufacturing step, the flange integrated with each other by the first and second inner wall provisional attaching steps, the first and second inner backing pieces, and the first inner wall backing metal In a state where the first and second inner walls are laid down so that the first inner wall is located on the upper side, the first inner wall to the lower surface of the flange by butt welding using the first inner backing metal Install the upper end,
In the second inner wall main attaching step, after the first inner wall main attaching step is completed, the inner backing metal manufacturing step, the second inner wall temporary attaching step and the first inner wall final attaching step are integrated with each other. The second inner backing metal in a state where the flange, the first and second inner backing metal, and the first and second inner walls are turned over and laid down so that the second inner wall is located on the upper side. By attaching the upper end of the second inner wall to the lower surface of the flange by butt welding using the flange, the first and second inner backing metals, and the first and second inner backing metals. Manufacturing an intermediate assembly including a second inner wall,
In the first determining step, the welded portion between the lower surface of the flange and the upper end of the second inner wall in a state where the manufactured intermediate assembly is laid down so that the second inner wall is located on the upper side. After performing the above-described determination of the presence or absence of defects, the intermediate assembly is turned upside down, and is laid down so that the first inner wall is located on the upper side, and the lower surface of the flange and the upper end of the first inner wall are The method for manufacturing a seismic control wall according to claim 3 or 4, wherein the presence or absence of a defect in the welded part is determined. The number of the plurality of inner walls is 4 or more,
The backing metal is composed of a plurality of backing metal including the first and second inner backing metal,
After the completion of the first determination step, the first and second inner backsides of the plurality of backing plates are provided on both outer sides of inner walls respectively located on outermost outer sides in the width direction of the flange in the intermediate assembly. A backing metal mounting step of mounting one backing metal other than the backing metal and another backing metal on the lower surface of the flange in a state of being respectively arranged;
A first outer inner wall temporary attaching step of temporarily attaching one inner wall other than the first and second inner walls of the plurality of inner walls to the one backing metal attached by the backing metal attaching step;
A second outer inner wall provisional temporary attachment of one inner wall other than the first and second inner walls of the plurality of inner walls to the one other backing metal attached in the backing metal attaching step. Attaching process,
The intermediate assembly integrated by the backing metal attaching step, the first and second outer inner wall temporary attaching steps, the one backing metal, the other one backing metal, the one inner wall and the The other one inner wall is laid down so that the one inner wall is located on the upper side, and the upper end of the one inner wall is butt-welded by using the one backing metal to the lower surface of the flange. Attaching the first outer inner wall to the
The back assembly attaching step, the second outer inner wall provisional attaching step, and the first outer inner wall final attaching step, the intermediate assembly integrated, the one back die, the other back die, The one inner wall and the other one inner wall are turned upside down, and the upper end of the other one inner wall is placed so that the other one inner wall is located on the upper side. The intermediate assembly, the one backing metal, the other backing metal, the one inner wall, and the one inner wall, which are integrated with each other by attaching to the lower surface of the flange by butt welding using a backing metal. A second outer inner wall bookbinding step of manufacturing a new intermediate assembly including the other one inner wall;
With the intermediate assembly manufactured by the second outer inner wall bookbinding step laid down so that the other inner wall is located on the upper side, the lower surface of the flange and the other inner wall are After determining the presence or absence of a defect in the welded portion by butt welding with the upper end by a nondestructive inspection, the intermediate assembly is turned over and the flange is placed in a state of being laid down so that the one inner wall is located on the upper side. A second determination step of determining, by a nondestructive inspection, whether or not there is a defect in a welded portion by butt welding between the lower surface of the above and the upper end of the one inner wall
The backing metal attaching step, the first and second outer inner wall temporary attaching steps, the first and second outer inner wall final attaching steps, and the second determining step, the intermediate assembly manufacturing step, the plurality of inner walls Of the inner walls other than the first and second inner walls, and backing metal other than the first and second inner backing metal of the plurality of backing metal, are repeatedly performed. The method for manufacturing the damping wall according to claim 6.

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