JP2003269010A - Column-beam joint part fitted with base isolation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a column-beam joint part fitted with a base isolation device of which the connection of a column and a beam in the field and the assembling constitution of a base isolation building can be easily carried out and the constitution can be improved by fitting a base isolation device right under a column-beam joint metal fitting in advance. <P>SOLUTION: The column-beam joint metal fitting 1, a column connection member 2, a beam connection member 3, and a sleeve bearing 4 of a base isolation device are assembled together in a factory in advance, and transferred to a job site as it is. The column 7 and the beam 8 are welded to the column- beam joint metal fitting 1 respectively or connected by bolting means of bolts 10 through a connection plate 9. Further, the base isolation device is integrally fitted to the lower end of the column-beam joint metal fitting 1 to constitute a column-beam joint part with the base isolation device. In this way, The frame body of the base isolation building can be extremely easily constructed and uniform assemblies can be mass-produced uniformly, accurately, and inexpensively. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column-beam joint with a seismic isolation device, which is capable of constructing a seismic isolated building easily and accurately on site, and is particularly used when constructing a seismic isolated building. The present invention relates to a column-beam joint with a seismic isolation device, which is constructed by attaching a seismic isolation device to the lower end of a column-beam joint metal fitting.

[0002]

2. Description of the Related Art Conventionally, in order to implement a seismic isolation structure of a steel-framed ramen structure as disclosed in Japanese Patent Application Laid-Open No. 11-013305 developed by the applicant of the present invention, each pillar constituting a frame of a steel-framed ramen structure. Below, for example, JP 2000-19
The seismic isolation device described in Japanese Patent No. 3027 was installed to construct a seismic isolated building.

In the case where the seismic isolation device is mounted directly below a column forming a frame made of steel-framed ramen as shown in the above-mentioned Japanese Patent Laid-Open No. 11-013305, dust and water droplets enter the seismic isolation device. In order to protect from this, a makeup cover or the like had to be attached around the seismic isolation device.

A conventional example shown in FIG. 10 is an embodiment in which a decorative cover 51 is provided around a seismic isolation device (not shown). In the figure, 52 is a pillar, 53 is a beam attached to the pillar 52, and 54 is a foundation.

In the conventional example shown in FIG. 10, the decorative cover 51 is attached around the seismic isolation device in order to protect the seismic isolation device.
In the case of providing No. 1, there is a problem that the surroundings of the seismic isolation device becomes complicated and the appearance of the decorative cover 51 projects from the outside of the building, resulting in poor appearance.

In order to improve the problems of the conventional example shown in FIG. 10, for example, as shown in FIG. 11, a reinforcing beam 55 for reinforcement is provided between the beams 53 at the corners of the building. A construction method of fixing the seismic isolation device 56 to the reinforcing beam 55 and completely disposing the seismic isolation device 56 in the building has also been implemented.

[0007]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In order to carry out the technique described in the publication No. 1-013305 as it is, at the building site, the pillar and the beam are connected to each other to construct the building frame, and the seismic isolation device is attached and fixed directly under the pillar. Since it has to be done, there is a problem that the work is extremely uncomfortable and the work is extremely complicated, and it is difficult to maintain the accuracy of the position of the seismic isolation device with respect to the mounting of the column.

Further, a column-beam joint member with a sleeve in which a beam joint member is provided in a sleeve-like manner on the side of a vertical column joint member having a predetermined height, or a fore edge of the column is at the upper end and the beam In the field, using columns and beam joint members that can be bolted to the side portions, respectively, the columns and beams are joined to these column-beam joint members, and the lower end portion of the column-beam joint members is also used. Alternatively, there is a construction method that attaches a seismic isolation device to the lower surface of the beam, but it does not fit well,
There is a problem in that it is difficult to accurately attach and configure these. The above problems are due to the fact that the seismic isolation device cannot hold the stationary state.

When the seismic isolation device is provided directly below the pillar, the decorative cover 51 must be provided around the seismic isolation device so as to project outward from the building body, as described in FIG. However, there was a problem that the appearance was bad.

Further, in order to improve the above-mentioned problem shown in FIG. 10, as shown in FIG.
When it is attached to the reinforcing beam 55 provided at the corner of the building instead of directly below the building, it is necessary to separately prepare a reinforcing material and a load bearing element is formed on the beam 53, so that the design of the beam 53 is seismically isolated. There was a problem that it became complicated.

The column-beam joint with a seismic isolation device according to the present invention is a completely new technology developed in view of the above-mentioned many problems of the prior art. It is easy to assemble pillars and beams and to assemble seismic isolation buildings on site, and improve the structure.
Further, the present invention provides a completely new technique capable of improving the fitting condition of the seismic isolation device by attaching a take-out beam to the outer periphery of the column-beam joint metal to form a cantilever building.

[0012]

A column-beam joint with a seismic isolation device according to the present invention is an invention in which the above-mentioned conventional problems have been fundamentally improved. A column-beam joint part with a seismic isolation device, characterized in that a seismic isolation device is integrally attached to the lower ends of column-beam joint metal parts that can be respectively joined to beams.

In the above-mentioned first invention, the column-beam joint portion with the seismic isolation device is constructed by integrally attaching the seismic isolation device to the lower end of the column-beam joint metal which can respectively join the column and the beam. As a result, uniform products can be mass-produced accurately and inexpensively in the factory.

The column-beam joint with the seismic isolation device according to the first aspect of the invention is transported to the construction site as it is, and the column,
By joining beams etc., the structural body of the base-isolated building can be assembled and configured easily and accurately.

The second of the beam-column joint with seismic isolation device according to the present invention
The gist of the invention is that the seismic isolation device is integrally attached to the lower ends of the column-beam joint metal parts that can directly fasten the column edge and the beam edge respectively via bolts. It is a beam-column joint with a seismic device.

In the above-mentioned second invention, the seismic isolation device is integrally attached to the lower end of the particular pillar-beam joint metal which can directly fasten the pillar edge and the beam edge respectively via the bolts. Therefore, it is possible to make the overall structure more compact and lighter than the column-beam joint with the seismic isolation device of the first invention. Therefore, the transportation to the site can be facilitated, and the pillar and the beam can be easily mounted on the site by only the bolts.

The third of the beam-column joint with seismic isolation device according to the present invention
The gist of the invention is constituted by connecting a pillar and a beam to a predetermined position of a column-beam joint metal piece provided with a seismic isolation device immediately below, and connecting a take-out beam for canching to the outer periphery of the column-beam joint metal piece. It is a beam-column joint with seismic isolation device characterized by the above.

In the third aspect of the invention described above, the cantilever take-out beam is joined to the outer periphery of the column-beam joint metal object having the seismic isolation device provided directly below, so that the cantilever structure of the seismic isolated building is simplified. Can be configured. Therefore, the working range of the seismic isolation device installed directly under the pillar can be accommodated in the cantilever structure, and the protective makeup cover of the seismic isolation device can be well accommodated to construct a seismically isolated building with good appearance. I can.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a beam / column joint with a seismic isolation device according to the present invention will be described with reference to the drawings. FIG. 1 shows the structure of a beam / column joint with a seismic isolation device according to the first embodiment of the present invention. FIG. 2 is a perspective view showing components, FIG. 2 is a perspective view of the first embodiment of FIG. 1 after completion of assembly, and FIG. 3 is a perspective view showing components of a beam-column joint with seismic isolation device of a second embodiment of the present invention. FIG. 4 is a perspective view of the second embodiment of FIG. 3 after completion of assembly.

FIG. 5 is a perspective view showing components of a column-beam joint with a seismic isolation device according to a third embodiment of the present invention, FIG. 6 is a perspective view of the third embodiment shown in FIG. 5 after assembly is completed, and FIG. Is a perspective view showing the construction of the fourth embodiment of the present invention, FIG. 8 is a perspective view of the fourth embodiment of FIG. 7 after assembly is completed, and FIG. 9 is an assembly construction of the fourth embodiment of FIGS. 7 and 8. It is the simplified side view and top view of the structure of the cantilever type building.

Referring to FIGS. 1 and 2, the column-beam joint with seismic isolation device of the first embodiment of the present invention will be described as follows. That is, 1 is a column-beam joint metal fitting with a sleeve, and a plurality of beam-joint members 3 are provided on the side of the column-joint member 2 erected vertically.
Is horizontally attached in a sleeve shape, and a slide bearing 4 of the seismic isolation device is integrally attached to the lower end of the column joint member 2.

Reference numeral 5 is a sliding plate of the seismic isolation device with which the sliding bearing 4 is in contact, and is horizontally attached at a predetermined position of the concrete foundation 6. Reference numeral 7 is a column joined to the column joining member 2, and 8 is a beam connected to the beam joining member 3.

In the pillar-beam joint metal 1 used in the first embodiment of the present invention, the pillar joint member 2, the beam joint member 3 and the sliding bearing 4 are integrally assembled in advance in a factory. By directly transporting to the site and connecting the pillar 7 and the beam 8 to the pillar-beam joint metal 1 by means of welding or bolting, the skeleton of the base-isolated building can be constructed very easily. In the figure, 9 is a joining plate and 10 is a bolt. In the embodiment of FIG. 2, the pillar-joining member 2 and the pillar 7 are connected by welding. However, when end plates (not shown) are provided in advance on both the pillar-joining member 2 and the pillar 7, Both end plates can be connected by bolting them together.

Referring to FIGS. 3 and 4, a column-beam joint with a seismic isolation device according to the second embodiment of the present invention will be described. Reference numeral 11 is a prismatic column-beam joint metal used in the second embodiment. The upper end portion and the side surface portion of the pillar 7 and the beam 8 respectively have a small edge 7a of the pillar 7 and a small edge 8 of the beam 8.
A and a can be directly bolted to each other. A sliding bearing 4 of a seismic isolation device is integrally attached to the lower end of the column-beam jointing hardware 11.

That is, as shown in the figure, the upper end portion of the beam-column jointing metal 11 is formed so that it can be fitted into the small opening 7a of the column 7, and the bolt 7 is tightened by the nut 13 to fix the column 7 to the beam-column jointing metal 11. The bolt hole 14 and the beam 8 which can be connected and are provided on the side surface of the pillar-beam joint metal fitting 11.
The bolt 8 is inserted into these bolt holes 14 and 16 and fastened with the nut 18, so that the beam 8 is connected to the column-beam joint metal fitting. It is configured so that it can be connected to 11.

In the case of the second embodiment shown in FIGS. 3 and 4, the small holes 7a of the pillars 7 and the small holes 8a of the beams 8 are directly attached and fixed to the pillar-beam joint metal 11 through the bolts 12 and 17. Since it is configured, it is possible to make the overall configuration of the beam-column joint metal 11 extremely compact and lightweight.
Therefore, it is easy to transport from the factory to the site, and the pillar-beam jointing hardware 11 is used to assemble the pillars 7 and 8 on the site and construct the frame of the base-isolated building accurately and easily. Can be done.

Referring to FIGS. 5 and 6, the third embodiment of the present invention will be described. In the third embodiment, the seismic isolation device of the second embodiment is replaced by another seismic isolation device. However, it is basically the same as the second embodiment. The seismic isolation device of the second embodiment uses a sliding seismic isolation device composed of a sliding bearing 4 and a sliding plate 5, but in the third embodiment, a rolling seismic isolation device 19 is used. There is. The seismic isolation device 19 is previously attached integrally to the column-beam joint hardware 11.

The fourth embodiment of the present invention will be described with reference to FIGS. 7 to 9. That is, this fourth
In the embodiment, the take-out beam 20 for canching is attached to the outer periphery of the above-mentioned column-beam jointing hardware 11, and thereby the building has a cantilever structure, so that the seismic isolation device attached directly below the column 7 is housed. It is an invention which improves the above-mentioned problems and fundamentally solves the problems of the related art described in FIGS. 10 and 11.

In the fourth embodiment, in particular, as shown in FIG. 7, a bolt hole 21 is provided at a predetermined position on the outer periphery of the beam-column joint metal 11, and by using this bolt hole 21, A cantilever structure is constructed by projecting the take-out beam 20 on the outer periphery of the column-beam joint metal 11 through the end plate 22 fixed to the edge of the take-out beam 20 and the bolt holes 23 and bolts 24 provided in the end plate 22. It is configured so that it can be easily configured.

In the fourth embodiment illustrated in FIGS. 7 and 9, bolt holes 21 are provided on the outer periphery of the beam-column joint metal 11,
Although the take-out beam 20 is configured to be bolted and attached using the bolt holes 21, the take-out beam 20 may be attached by welding directly to the outer periphery of the column-beam joining metal part 11.

In the case of the above-mentioned fourth embodiment, since the take-out beam 20 can be attached to the column-beam joint metal fitting 11 to make the skeleton of the seismic isolated building into a cantilever structure, the isolation installed directly below the column 7 is omitted. The seismic isolation device and the operating range of this seismic isolation device can be stored in the cantilever structure, which facilitates the storage of the protective covers of the surrounding seismic isolation device, and easily constructs a well-designed seismic isolation building. Can be done.

Further, a cantilever is stretched around the outer periphery of such a base-isolated building to reduce the exposed portion of the steel skeleton on the outer periphery of the building, thereby providing a framing system that enables a heat insulation construction method for the building. It can be constructed, and as a result, the safety performance and living performance of the base-isolated building can be significantly improved.

[0033]

According to the present invention, a column-beam joint with a seismic isolation device is formed by integrally attaching the seismic isolation device to the lower end of a column-beam joint metal piece capable of respectively joining a column and a beam. Therefore, it has an effect that a uniform product can be mass-produced accurately and inexpensively in the factory.

The column-beam joint with the seismic isolation device according to the first aspect of the present invention is transported to the construction site as it is, and the column,
It also has the effect that the structural skeleton of the base-isolated building can be assembled and configured easily and accurately by joining beams and the like.

In the present invention, in the case where the seismic isolation device is integrally attached to the lower end of a specific pillar-beam joint metal which can be directly fastened to each other by bolts, It is possible to make the overall structure more compact and lighter than the column-beam joint with the seismic isolation device of the invention. Therefore, there is an effect that the transportation to the site can be facilitated and that the pillar and the beam can be easily attached on the site by only the bolts.

In the present invention, since the take-out beam for the cantilever is joined to the outer periphery of the pillar-beam joined metal object provided with the seismic isolation device directly below, the cantilever-structured building can be easily constructed. Can be done. Therefore, the operating range of the seismic isolation device installed directly below the pillar can be accommodated within the cantilever structure.
In addition, it has the effect that the protective makeup cover of the seismic isolation device can be housed better and a seismic isolated building can be constructed.

[Brief description of drawings]

FIG. 1 is a perspective view showing components of a beam-column joint with a seismic isolation device according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the first embodiment of FIG. 1 after completion of assembly.

FIG. 3 is a perspective view showing components of a column-beam joint with a seismic isolation device according to a second embodiment of the present invention.

FIG. 4 is a perspective view of the second embodiment of FIG. 3 after completion of assembly.

FIG. 5 is a perspective view showing components of a beam / column joint with a seismic isolation device according to a third embodiment of the present invention.

6 is a perspective view of the third embodiment of FIG. 5 after completion of assembly.

FIG. 7 is a perspective view showing a configuration of a fourth exemplary embodiment of the present invention.

8 is a perspective view of the fourth embodiment of FIG. 7 after completion of assembly.

9 is a simplified side view and a plan view of the body of a cantilever building assembled and constructed in the fourth embodiment of FIGS. 7 and 8. FIG.

FIG. 10 is a perspective view of a conventional example in which a decorative cover is provided around the seismic isolation device.

FIG. 11 is a perspective view of a conventional example in which a seismic isolation device is attached to a lower surface of a reinforcing beam provided at a corner portion of a skeleton.

[Explanation of symbols]

1 ・ ・ ・ Beam-column joint hardware 2 ... Column joining members 3 ... Beam joint members 4 ... Sliding bearing 5: Sliding board 6 ... Concrete foundation 7 ... Pillar 7a ... small amount 8 ... Beams 8a ... Small 9 ... Bonding plate 10 ... Bolt 11 ・ ・ ・ Beam-column joint hardware 12 ... Bolt 13 ... Nut 14 ・ ・ ・ Bolt holes 15 ・ ・ ・ End plate 16 ・ ・ ・ Bolt holes 17 ... Bolt 18 ... Nut 19 ・ ・ ・ Seismic isolation device 20 ... Take-out beam 21 ・ ・ ・ Bolt hole 22 ・ ・ ・ End plate 23 ... Bolt holes 24 ... Bolt 51 ... Makeup cover 52 ... Pillar 53 ・ ・ ・ Beam 54 ... Basic 55 ・ ・ ・ Reinforcement beam 56 ・ ・ ・ Seismic isolation device

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) E04B 1/98 E04B 1/98 PF term (reference) 2E001 DG01 DG02 DH31 EA06 FA01 FA02 FA21 GA01 GA12 GA62 HB01 HF16 LA01 LA11

Claims (3)

[Claims] 1. A column-beam joint portion with a seismic isolation device, characterized in that a seismic isolation device is integrally attached to the lower end of a column-beam joining metal article capable of joining a column and a beam to each other. 2. The seismic isolation device is integrally attached to the lower ends of the pillar-beam joint metal parts which can directly fasten the column head and the beam head respectively via bolts. Beam-column joint with seismic device. 3. A structure in which a pillar and a beam are respectively joined to a predetermined position of a pillar-beam joint metal piece provided with a seismic isolation device immediately below, and a cantilever take-out beam is joined to the outer periphery of the pillar-beam joint metal piece. The beam-column joint with seismic isolation device characterized by the above.