JP2001317227A - Method for constructing seismic control wall and structure for mounting seismic control wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for constructing seismic control walls in which the seismic damping walls made of low-yielding-point steel sheets can be easily and reliably incorporated into a building made of reinforced concrete. SOLUTION: When sequentially constructing the framework of the building 10 from lower story to upper story through the use of columns 20 and beams 22 made of precast concrete, the seismic control walls 18 are formed by incorporating the low-yield-point steel sheets 24 into a space surrounded by the columns 20 and beams 22. In this case, the method for constructing the seismic control walls includes both a process to join the low-yield-point steel sheets 24 to the beams 22 of an upper story and lower story by direct joining and a process to join the low-yield-point steel sheets 24 to at least one column 20 by indirect joining according to the construction cycle of the framework of the building 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a damping wall and a structure for mounting the damping wall, and more particularly to a method and a method for constructing a damping wall incorporating a low yield point steel plate in a reinforced concrete building. Related to the mounting structure of the diaphragm wall.

[0002]

BACKGROUND OF THE INVENTION In general,
When building a high-rise building, it is common to install a vibration control device.

[0003] In this case, in a steel-frame building, it is known to use a low yield point steel plate as a vibration control device.

[0004] However, in a reinforced concrete building, if a low yield point steel plate is used as a vibration control device, it is necessary to rigidly connect the low yield point steel plate to a column or a beam. The connection of the beam to the concrete member becomes a problem.

[0005] In particular, when a building frame is constructed by using columns and beams made of precast concrete due to a demand for shortening the construction period, it is difficult to attach a low yield point steel plate due to errors in the construction accuracy of the columns and beams. Become.

In this case, if the attachment of the low yield point steel plate is prioritized, the construction cycle of the reinforced concrete building is affected, and the requirement for shortening the construction period is not met.

In the case of a reinforced concrete building,
If all the structures surrounded by columns and beams are made of low yielding steel plate, the yield strength will be increased, the impact on the surrounding frames such as columns and beams will be increased, and the strength of the surrounding frames must be increased. A situation that may have to occur may occur.

An object of the present invention is to provide a construction method of a damping wall and a damping wall mounting structure which can easily and surely incorporate the damping wall into a reinforced concrete building.

Another object of the present invention is to mount a damping wall without affecting the construction cycle of a building when a building frame is constructed using columns and beams made of precast concrete. It is an object of the present invention to provide a damping wall construction method and a damping wall mounting structure suitable for a request for shortening a possible construction period.

Still another object of the present invention is to provide a damping wall mounting method and a damping wall mounting structure which can be mounted without excessively increasing the yield strength of the damping wall and which can suppress the influence on the surrounding framework. Is to provide.

[0011]

In order to achieve the above object, a method for constructing a vibration damping wall according to the present invention is a method for constructing a frame of a building sequentially from a lower layer to an upper layer using columns and beams made of precast concrete. A method of constructing a damping wall by incorporating a damping mechanism in a space surrounded by these columns and beams to form a damping wall, wherein the damping mechanism and the The method includes a step of joining the upper and lower beams by direct joining, and a step of joining the vibration control mechanism and at least one of the columns by indirect joining.

According to the present invention, by connecting the vibration control mechanism and the upper and lower beams by direct bonding, it is possible to reliably transmit a horizontal force from the beam to the vibration control mechanism. By joining the vibration control mechanism and at least one of the columns by indirect joining, it is easy to absorb the construction error of the assembly accuracy of the precast concrete columns, and the building using precast concrete columns and beams The vibration damping mechanism can be easily and reliably mounted without affecting the construction cycle, and can be adapted to a request for shortening the construction period.

Another method of constructing a vibration damping wall according to the present invention is to construct a frame of a building from a lower layer to an upper layer using columns and beams made of precast concrete, and to form a space surrounded by the columns and beams. A method of constructing a damping wall by incorporating a low yield point steel sheet into a damping wall, wherein the low yield point steel sheet is directly joined to the upper and lower beams according to a frame construction cycle of the building. And a step of joining the low yield point steel plate and at least one of the columns by indirect joining.

According to the present invention, by connecting the low yield point steel plate and the upper and lower layers of the beam by direct bonding, it is possible to reliably transmit the horizontal force from the beam to the low yield point steel plate, In addition, by joining the low yield point steel plate and at least one of the columns by indirect joining, it is easy to absorb construction errors in the assembly accuracy of the columns made of precast concrete, and the columns and beams made of precast concrete can be used. The low-yield-point steel plate can be easily and reliably mounted without affecting the construction cycle of the building, and can be adapted to the request for shortening the construction period.

In the present invention, it is preferable that a step of integrating the lower end of the low yield point steel plate and the lower beam via a connecting member at the time of placing the lower floor concrete.

[0016] With this configuration, the lower concrete floor low-yield point steel sheet and the lower beam are integrated via the connecting member at the time of placing the lower layer concrete, so that the floor concrete placing step is utilized. Thus, the lower end of the low yield point steel plate can be mounted, and the low yield point steel plate can be mounted without affecting the construction cycle process of the building.

Further, the lower end of the low yield point steel plate is directly connected to the lower beam via the connecting member, so that the horizontal force of the lower beam can be reliably transmitted.

In the present invention, it is preferable that after installing the upper beam, an upper end of the low yield point steel plate and a lower end of the beam are joined by bolt joining.

[0019] With this configuration, after the upper layer beam is installed, the upper end of the low yield point steel plate and the lower end of the beam are joined by bolting, whereby a frame is sequentially constructed from the lower layer to the upper layer. By using the process, the upper end of the low yield point steel plate can be attached, and the upper end of the low yield point steel plate can be securely joined by direct joining to reliably transmit the horizontal force of the upper layer beam. it can.

In the present invention, the beam has a vertical penetration portion, and the low-yield-point steel plate is connected to the upper layer through the connecting member whose upper end is inserted into the penetration portion when the upper-layer floor concrete is poured. It is preferable to be integrated with the upper beam.

With such a configuration, the beam is formed by a so-called half PC having a vertically penetrating portion, and the upper end of the low yield point steel plate is connected to the upper layer through a connecting member inserted into the beam penetrating portion. By integrating with the upper beam at the time of floor concrete casting, the upper end of the low yield point steel plate can be more easily integrated with the upper beam by direct joining, and the horizontal force of the upper beam can be transmitted reliably. .

In the present invention, the connecting member penetrates the through portion of the upper beam and has both ends connected to the upper end of the lower low yield point steel plate and the lower end of the upper low yield point steel plate. It is good to make it.

With such a configuration, the lower end of the upper low yield point steel sheet is supported and positioned on the upper end of the lower low yield point steel sheet via the connecting member, so that the upper low yield point steel sheet can be reliably placed. Floor concrete can be poured in the positioned state, and the upper end of the lower layer low yield point steel plate and the lower end of the upper layer low yield point steel plate are securely joined to the beam by direct joining, and the horizontal force of the beam Can be transmitted reliably.

In the present invention, a stud may be provided between the columns, and the low yield point steel plate may be provided between the stud and one of the columns.

By adopting such a configuration, by providing a low yield point steel plate between the stud and one of the columns, a comparison can be made between the case where the low yield point steel plate is attached to the entire structure surrounded by the beams and columns. However, it is possible to reduce the influence on the surrounding beams and columns and prevent the beams and columns from having excessive strength without increasing the yield strength.

In this case, it is preferable that a space for access is provided between the stud and the other pillar.

With such a configuration, when the damping wall is disposed, for example, at the center core portion of a building, a space for entering and exiting is secured on the center core structure, and the damping wall is provided at the center core portion. Access to the evacuation stairs, elevators, and storage can be secured.

In this case, the studs are formed of cast concrete at the same time as the upper layer of the floor concrete is cast, and the studs are connected via a connecting member projecting from a side surface of the low yield point steel plate. It is good to be integrated with.

With such a structure, the studs are formed of cast-in-place concrete, and are integrated with the side surface of the low yield point steel plate via a connecting member at the time of forming the studs, thereby forming the upper layer concrete concrete. By using the installation process, the studs can be integrated with the side surface of the lower low yield point steel plate, and since the mounting of the side surface of the low yield point steel plate is indirect joining, there is a construction error in the assembly accuracy of columns and beams. Can be easily absorbed.

In this case, it is preferable that the stud is made of precast concrete having a concave portion capable of receiving a connecting member protruding from a side surface of the low yield point steel plate.

With such a structure, the stud is made of precast concrete called a so-called half PC having a concave portion capable of receiving the connecting member, so that a form is not used when forming the stud. The stud can be easily and reliably formed.

Further, in this case, concrete is poured between the one column and the low yield point steel plate at the same time as the upper layer of the floor concrete is driven, and projects from the side surface of the low yield point steel plate. The one column and the low-yield-point steel plate may be integrated via a connecting member.

By adopting such a configuration, the side of the low yield point steel plate and one of the pillars are integrated with each other via a connecting member by using the concrete for placing the upper floor concrete, thereby forming the upper floor concrete. Using the casting process, the side of the low yield point steel plate can be securely attached by indirect joining, and the construction error of the column and beam assembly accuracy can be easily absorbed without affecting the building construction cycle. Installation can be performed.

The vibration damping wall mounting structure of the present invention is a vibration damping wall mounting structure for forming a vibration damping wall by incorporating a vibration damping mechanism in a space surrounded by reinforced concrete columns and beams. And the upper and lower beams are joined by direct joining, and the vibration control mechanism and at least one of the columns are joined by indirect joining.

According to the present invention, the damping mechanism and the upper and lower layers of the beam are joined by direct joining, and the damping mechanism and at least one of the columns are joined by indirect joining, so that the reinforced concrete building can be used. Damping walls can be easily and reliably incorporated.

[0036] Another vibration damping wall mounting structure of the present invention is a vibration damping wall mounting structure for forming a vibration damping wall by incorporating a low yield point steel plate into a space surrounded by reinforced concrete columns and beams. The low yield point steel plate and the upper and lower beams are joined by direct joining, and the low yield point steel plate and at least one of the columns are joined by indirect joining.

According to the present invention, the low yield point steel plate and the upper and lower beams are joined by direct joining, and the damping mechanism and at least one of the columns are joined by indirect joining, so that the reinforced concrete building can be used. In addition, it is possible to easily and surely incorporate a damping wall made of a steel plate having a low yield point.

In the present invention, a stud is provided between the columns, the low yield point steel plate is provided between the stud and the one column, and a stud is provided between the stud and the other column. It is preferable that a space for access is provided.

With such a configuration, by providing a low yield point steel plate between the studs and the column, the low yield point steel plate can be attached without excessively increasing the yield strength, and can be used to mount columns and beams. The influence on the surrounding skeleton can be suppressed.

Further, by providing a space for entry and exit between the stud and the other pillar, for example, even when a vibration control wall is installed at the center core of a building, evacuation stairs, elevators, Access to the storage can be secured.

In the present invention, the columns and beams are preferably made of precast concrete.

With this configuration, when a building frame is constructed using precast concrete columns and beams, the low yield point steel plate is attached without affecting the building construction cycle process. Therefore, it can be suitable for a request for shortening the construction period.

Here, in the present invention, the direct joining means
A joint that directly transmits a force, and is a joint that integrates using a stress transmitting material such as a stud, and an indirect joint is a joint that bears a force that restrains deformation.

In addition to the case where a predetermined area is closed using, for example, a steel plate having a low yield point, a vibration-damping wall is formed by installing a viscous damper such as an oil damper on a brace and having a gap in the predetermined area. It is used in a broad sense that includes various things.

[0045]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 to 8 are views showing a damping wall mounting structure according to a first embodiment of the present invention.

FIG. 1 is a schematic vertical sectional view of a building using the vibration damping wall mounting structure of the present invention, for example, a reinforced concrete high-rise apartment house. As shown in FIG. A plurality of pillars 14 are provided at predetermined intervals on the outer periphery and the outermost periphery of the center core 12, and evacuation stairs, elevators, storages, and the like (not shown) are provided inside the center core 12. I have.

The surface 16 of the center core 12
Is provided with a vibration control wall 18.

As shown in FIG. 1, the damping wall 18 is composed of a pair of right and left columns 20 and upper and lower beams 22.
6, a low yield point steel plate 24 is incorporated.

The pillars 20 and the beams 22 are made of precast concrete previously formed in a predetermined shape and size at a factory or the like, except for a portion formed of cast-in-place concrete such as a floor. The frames of the building 10 are sequentially constructed from the lower layer to the upper layer using the pillars 20 and the beams 22 made of steel.

The low-yield-point steel sheet 24 is a so-called damping panel with a hysteresis damping function. As shown in FIG. 3, a shear panel 28 is provided in a frame 26, and the shear panel 28 is connected to a plurality of vertical panels. It is reinforced by the ribs 30 and the lateral ribs 32, and the shear panel 28 yields due to the shearing force generated between the layers of the building 10, so that the energy at the time of shearing can be absorbed.

The upper end of the low yield point steel plate 24, that is, the upper surface of the frame 26, has a plurality of bolt insertion holes 34.
Is provided over the longitudinal direction so as to protrude upward.

At the lower end of the low yield point steel plate 24, that is, on the lower surface of the frame 26, a split T-shaped steel 38 is provided over the longitudinal direction in a state protruding downward, and a plurality of headed studs 40 are provided on both sides thereof at predetermined intervals. It is provided in a state protruding downward.

Further, a plurality of headed studs 42 are provided on the side surface of the low yield point steel plate 24, that is, on the side surface of the frame 26 at a predetermined interval so as to protrude to the side.

The upper and lower ends of the low yield point steel plate 24 are directly joined to the upper and lower beams 22, and the side surface of the low yield point steel plate 24 is between one column 20 and a pair of columns 20. It is in a state of being joined to the formed stud 44 by indirect joining.

Specifically, as shown in FIGS. 4 and 5,
A T-shaped mounting member 46 is mounted on the lower surface of the beam 22, and a plurality of bolt insertion holes 50 are formed at predetermined intervals in a hanging leg 48 of the mounting member 46.
6 and the bolts 52 are attached to the bolt insertion holes 50 and 34 of the joining plate 36 and tightened, so that the low yield point steel plate 2
4 and the lower end of the upper beam 22 are integrated.

The mounting member 46 is mounted on the beam 22 by a stud 54 with a head, a buried nut 56 and a bolt 58.

In FIGS. 4 and 5, for convenience, the stud 54 with the head, the embedded nut 56 and the bolt 58 are shown on the same drawing, but either one of them is used.

For example, when the headed stud 54 is used, the mounting member 46 is attached to the beam 22, and when the embedded nut 56 and the bolt 58 are used, the mounting member 46 can be mounted later.

The upper surface of the beam 22 is located on the lower beam 2 in FIG.
As shown by the broken line in FIG. 2, the split T-shaped steel 38 is formed on the upper surface of the beam 22 at the lower surface of the frame 26 of the low yield point steel plate 24 and is formed lower than the height of the floor surface 62 when the floor concrete 60 is cast. And put the headed stud 40,
By pouring the floor concrete 60 in place, the lower end of the low yield point steel plate 24 and the upper surface of the lower beam 22 are directly joined via the split T-shaped steel 38, the headed stud 40 and the floor concrete 60. To be integrated.

As described above, by integrating the upper end and the lower end of the low yield point steel plate 24 with the upper and lower beams 22 by direct joining, the horizontal force of the beam 22 is reliably reduced.
4 so that the energy at the time of the earthquake can be absorbed by the low yield point steel plate 24.

The lower end of the low yield point steel plate 24 and the upper surface of the beam 22 are joined by attaching an L-shaped reinforcing bar 64 to the lower surface of the frame 26 of the low yield point steel plate 24 as shown in FIG. A plurality of reinforcing bars 64 are attached at intervals, and
The lower end of the low yield point steel plate 24 and the upper surface of the beam 22 may be integrated by inserting the concrete 60 into the stirrup 66 protruding from the upper surface of the beam 22.

Alternatively, as shown in FIG.
And splitting the split T-beam 38 shown in FIG. 5 and shortening the stud 40 with the head, and casting the floor concrete 60 such that the stud 40 with the head is inserted into the stirrup 66 protruding from the upper surface of the beam 22. Thus, the lower end of the low yield point steel plate 24 and the upper surface of the beam 22 may be integrated.

As shown in FIG. 7 and FIG.
Are embedded with two rows of headed studs 68 so as to protrude laterally, and the headed studs 42 provided on the side of the frame 26 of the low yield point steel plate 24 are inserted between the two rows of headed studs 68. Stud 4 with head inserted
By inserting a spiral streak 70 between 2, 68, and in this state, concrete is poured between the side surface of the low yield point steel plate 24 and the side surface of the column 20 at the time of placing the upper floor concrete.
The side surface of the low yield point steel plate 24 and the column 20 are integrated by indirect joining.

As shown in FIG. 8 for convenience, a reinforcing bar 72 may be embedded in the column 20 instead of the stud 68 with a head. In the case of the stud 68 and the reinforcing bar 72, the reinforcing bar 72 is attached to the column 20 first. State.

Further, the nut 74 is embedded in the pillar 20 in advance.
Alternatively, the iron plate 76 may be embedded in the pillar 20, and the screw member 78 may be attached and screwed to the embedding nut 74 later, or the headed stud 80 may be attached to the iron plate 76 later by welding.

As shown in FIG. 7, the studs 44 are formed of cast concrete when the upper layer of concrete is cast, and are provided on the other side surface of the frame 26 of the low yield point steel plate 24. By pouring concrete with the two rows of headed studs 42 taken into the formwork, the other side surface of the low yield point steel plate 24 and the studs 44 are integrated by indirect joining. .

As described above, by integrating the side surfaces of the low yield point steel plate 24 with the columns 20 and the studs 44 by indirect joining, respectively, it is possible to be affected by the mounting error of the assembling accuracy of the columns 20 and the beams 22. Wall 18 using low yield point steel plate 24
Is easily and reliably formed.

As shown in FIG. 1, the stud 44 is a pillar 2 on a side different from the pillar 20 to which the low yield point steel plate 24 is attached.
0 and a predetermined space between the column 20 and the column 20 to form a space 82 for access.

As described above, the low yield point steel plate 24 is
By leaving a space in a part of the construction surface without attaching to the entire surface, it is possible to attach the low yield point steel plate 24 without excessively increasing the yield strength, and to reduce the influence on the surrounding framework such as the columns 20 and the beams 22. It can be suppressed.

Further, by providing the space 82 for access between the studs 44 and the pillars 20, it is possible to secure access to the evacuation stairs, elevators, and storages provided in the center core 12 of the building 10. It has become.

Next, a method of constructing such a damping wall 18 will be described with reference to FIG.

First, as shown in FIG. 9A, a low yield point steel plate 24 is erected on the upper surface of the beam 22 with the column 20 and the beam 22 assembled, and floor concrete is cast on the beam 22. Then, the lower surface of the low yield point steel sheet 24 is fixed.

Next, as shown in FIG. 9B, the column 20 is erected and fixed on the cast floor, and the beam 22 is placed and supported on the column 20.

In this case, one of the columns 20 is made of a low yield point steel plate 2.
4 and is fixed upright at a slight interval.

Then, in this state, the upper end of the low yield point steel plate 24 and the lower surface of the beam 22 installed thereabove are joined by bolting.

In this state, the lower end of the low yield point steel plate 24 is integrated with the lower beam 22 through floor concrete by direct joining, and the upper end is directly joined to the lower surface of the upper beam 22. .

Next, as shown in FIG. 9C, a low yield point steel plate 24 for forming the upper-layer vibration control wall 18 is placed on the upper surface of the upper beam 22.

Then, in this state, the lower low yield point steel plate 2
A formwork is installed between one of the columns 20 located on the right side of 4 and the low yield point steel sheet 24, and a formwork for the stud 44 is installed on the left side of the low yield point steel sheet 24.

Then, in this state, the upper layer concrete is cast on the upper beam 22, so that the pair of columns 20 and the beams 22 supported by the columns 20 are integrated by the cast concrete. At the same time, one of the columns on the right side of the low yield point steel plate 24 and the side surface of the low yield point steel plate 24 are integrated by indirect joining via a joining concrete portion 84, and the left side surface of the low yield point steel plate 24 is The studs 44 formed by the cast concrete are integrated by indirect joining (FIG. 9D).

Then, the lower concrete joint portion 84
Then, the formwork of the studs 44 is removed, and the upper damping wall is formed by repeating the same process as described above, so that the damping wall is sequentially formed toward the upper stratum.

According to such a method for constructing a damping wall, the upper end and the lower end of the low yield point steel plate 24 are directly joined to each other to form the beam 22.
And the lateral force of the beam 22 is reliably transmitted to the low yield point steel sheet 24 by indirectly joining the side surfaces of the low yield point steel sheet 24 by the cast-in-place concrete of the joining concrete portion 84 and the stud 44, Moreover, by making the side surface of the low yield point steel plate 24 indirectly joined, the column 20 and the beam 2
It is possible to easily and reliably mount the apparatus without being affected by the construction error of the second assembly.

FIGS. 10 to 13 show a mounting structure of a vibration damping wall according to a second embodiment of the present invention.

In this embodiment, a large number of studs 86 are projected from the outer peripheral surface of the frame 26 of the low yield point steel plate 24, and four connecting steel rods 88 are respectively provided on the upper and lower ends of the frame 26. It can be installed.

The connecting steel rod 88 has threaded portions at both ends, and can be attached to the upper and lower surfaces of the frame 26 by double nuts 90 screwed to the threaded portions.

By doing so, the frame 26
Fine adjustment at the time of mounting can be easily performed.

Further, as shown in FIGS. 11A and 11B, the beam 22 in the present embodiment has a low yield point steel plate 24.
And a so-called half-PC made of precast concrete having a penetrating portion 92 penetrating in the vertical direction at the mounting position.

A plurality of stirrups 94 protrude from the upper surface of each beam 22.

Then, as shown in FIG. 12 and FIG. 13, the lower low yield point steel sheet 24 is installed, and the column 20 and the beam 22 are installed. And connected by a connecting steel rod 88 and a double nut 90 that penetrate the penetrating portion 92 of the beam 22, so that the upper layer concrete can be cast in a positioned state.

By adopting such a structure, it is possible to further absorb the construction error of the assembling accuracy of the column 20 and the beam 22, and the positioning of the lower yield point steel plate 24 on the upper layer side includes fine adjustment. It can be done reliably.

In this case, the joint concrete portion 84
In the formation of the studs 44, concrete is cast at the time of placing concrete using a formwork. At least on the studs 44, studs 86 protruding from the side surface of the low yield point steel plate 24 are formed. The use of precast concrete called a so-called half PC having an acceptable concave portion makes the construction easier.

The other configuration and operation are the same as those of the above embodiment, and the description is omitted.

FIG. 14 shows a damping wall mounting structure according to a third embodiment of the present invention.

This embodiment is directed to a structure for mounting a brace damper as a vibration control mechanism.

For example, in the case of the oil damper 101,
The construction method of the frame 100 greatly affects the construction cycle process, and it is important how the assembly process of the frame 100 is incorporated into the construction cycle process.

In this embodiment, as in the first and second embodiments, the upper and lower portions of the frame 100 are
To the left and right pillars 2
0, by indirect joining with the studs 44, it is possible to carry out this assembling without affecting the construction cycle process in the construction method using ordinary precast concrete members.

In particular, the oil damper 1
When the concrete is cast by adjusting the position with the 01 installed, the position of a heavy object such as the oil damper 101 must be adjusted, so that the installation can be performed smoothly during the construction cycle process. It is preferable to remove the oil damper 101, attach the oil damper after the concrete is cast, and install it after the next cycle.

The other configuration and operation are the same as those of the above embodiments, and the description is omitted.

The present invention is not limited to the above embodiment, but can be modified into various forms within the scope of the present invention.

For example, in the above embodiment, the columns and beams are made of precast concrete. However, the present invention is not limited to this example. It is also possible to form pillars with cast-in-place concrete by placing floor concrete on top.

Further, in the embodiments shown in FIGS. 10 to 13, the connecting steel bars are used only for positioning the low yield point steel plates. Can be connected more reliably to form a strong joint state.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a building showing a mounting structure of a damping wall according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a building employing the structure for mounting a vibration damping wall of the present invention.

FIG. 3 is a perspective view of a low yield point steel plate.

FIG. 4 is a longitudinal sectional view showing a joining state between upper and lower ends of a low yield point steel plate and a beam.

FIG. 5 is a front view of FIG. 4;

FIG. 6A is a cross-sectional view showing another joining state of the lower end of the low yield point steel sheet, and FIG. 6B is a sectional view showing another joining state.

FIG. 7 is a cross-sectional view showing the left and right joining states of the low yield point steel sheet.

FIG. 8 is a front view showing a joint state between a side surface of a low yield point steel plate and a column.

FIGS. 9A to 9C are cross-sectional views showing respective steps in the method for constructing a vibration damping wall of the present invention.

FIG. 10 is a longitudinal sectional view showing a mounting structure of a damping wall according to a second embodiment of the present invention.

FIGS. 11A and 11B are cross-sectional views showing a beam made of precast concrete in the present embodiment.

FIG. 12 is a front view showing a state in which upper and lower low yield point steel plates are connected by connecting steel bars.

FIG. 13 is a cross-sectional view as viewed from the side in FIG.

FIG. 14 is a front view showing a structure for mounting a damping wall according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Building 16 Construction surface 18 Damping wall 20 Column 22 Beam 24 Steel plate with low yield point 26 Joining plate 38 Split T-shaped steel 40, 42, 54, 68, 80 Stud with head 44 Stud 44 Mounting member 52 Bolt 56 Embedded nut 58 Bolt 60 Floor concrete 64 Steel reinforcement 66 Hoop reinforcement 70 Spiral reinforcement 82 Space for entering and exiting 84 Joint concrete part 88 Connecting steel rod 92 Penetration part 100 Frame 101 Oil damper

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takashi Shimizu 1-7-1 Kyobashi, Chuo-ku, Tokyo Toda Construction F-term (reference) 2E001 DG01 DH31 EA03 FA01 FA02 FA11 FA71 GA12 GA17 GA46 GA47 HB02 JA01 LA01 LA11 2E002 EA02 EB13 FA04 FA09 FB08 FB16 GA02 GA08 HA02 HB09 JA01 JA02 JB02 JB08 KA01 MA11 MA12

Claims (15)

[Claims] When building a frame of a building sequentially from a lower layer to an upper layer using columns and beams made of precast concrete, a vibration control mechanism is incorporated into a space surrounded by these columns and beams to form a vibration control wall. A method of constructing a damping wall to be formed, wherein, in accordance with a frame construction cycle of the building, a step of directly joining the damping mechanism and the upper and lower beams, and at least one of the damping mechanism Joining the column and the column by indirect joining. 2. When a building frame is sequentially constructed from a lower layer to an upper layer using columns and beams made of precast concrete, a low yield point steel plate is incorporated into a space surrounded by the columns and beams. A method of constructing a vibration damping wall, comprising: a step of directly joining the low yield point steel sheet and the upper and lower beams according to a framing construction cycle of the building; and And a step of joining at least one of the columns by indirect joining. 3. The method according to claim 2, further comprising a step of integrating a lower end of the low yield point steel plate and the lower beam via a connecting member when the lower layer of the floor concrete is poured. Construction method of the diaphragm wall. 4. The damping wall according to claim 2, wherein after installing the upper beam, an upper end of the low yield point steel plate and a lower end of the beam are joined by a bolt. Construction method. 5. The floor of the upper layer according to claim 2, wherein the beam has a vertical penetrating portion, and the low yield point steel plate is provided with a connecting member having an upper end inserted into the penetrating portion. A method of constructing a vibration control wall, wherein the method is integrated with the upper beam at the time of placing concrete. 6. The steel sheet according to claim 5, wherein the connecting member penetrates through a penetrating portion of the upper layer beam, and has both ends at an upper end of the lower layer low yield point steel sheet and a lower end of the upper layer low yield point steel sheet. A method of constructing a damping wall, which is connected. 7. The control system according to claim 1, wherein a stud is provided between the columns, and the low yield point steel plate is provided between the stud and one of the columns. Construction method of the diaphragm wall. 8. The method according to claim 7, wherein a space for entering and exiting is provided between the stud and the other pillar. 9. The stud according to claim 7, wherein the stud is formed of cast concrete at the same time that the upper layer of concrete is cast, and the stud is formed through a connecting member projecting from a side surface of the low yield point steel plate. A method for constructing a damping wall, which is integrated with a low yield point steel plate. 10. The damping wall construction according to claim 9, wherein the stud is made of precast concrete having a concave portion capable of receiving a connecting member protruding from a side surface of the low yield point steel plate. Method. 11. The low yielding method according to claim 7, wherein concrete is poured between the one column and the low yield point steel sheet at the same time as the upper floor concrete is poured. The method for constructing a vibration control wall, wherein the one column and the low yield point steel plate are integrated via a connecting member projecting from a side surface of the steel plate. 12. A damping wall mounting structure for forming a damping wall by incorporating a damping mechanism into a space surrounded by reinforced concrete columns and beams, wherein the damping mechanism and the upper and lower beams are provided. Are joined by direct joining, and the damping mechanism and at least one of the columns are joined by indirect joining. 13. A damping wall mounting structure for forming a damping wall by incorporating a low yield point steel plate into a space surrounded by reinforced concrete columns and beams, wherein the low yield point steel plate and the upper and lower layers are formed. A beam and a beam are joined by direct joining, and the low yield point steel plate and at least one of the columns are joined by indirect joining. 14. The pillar according to claim 13, wherein a stud is provided between the pillars, the low yield point steel plate is provided between the stud and the one pillar, and between the stud and the other pillar. A mounting structure for damping walls, which has a space for entry and exit. 15. The damping wall mounting structure according to claim 13, wherein the columns and beams are made of precast concrete.