JP2006002364A - Building and building unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively reduce the deformation and rolling of a building by enhancing a vibration control effect exercised on the building by a vibration control device. <P>SOLUTION: In this building composed of a rigid frame 10A wherein a column 11 and a beam 12 are joined together, studs 14 and 15 are erected on the beam 12 of the rigid frame 10A of the building; braces 21, which include the vibration control devices 20 (20A and 20B), are mounted on the studs 14 and 15 in such a manner as to be arranged obliquely with respect to a horizontal direction; and a stud erecting part of the beam 12, which constitutes the rigid frame 10A of the building, is fixed to a lower structure. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a building and a building unit.

As a building that reduces deformation and rolls during an earthquake, as described in Patent Document 1, a truss frame fixed to the upper beam and a damper that constitutes a vibration damping device are held by the truss frame fixed to the lower beam When doing so, there is one in which the damper is horizontally arranged.
JP2001-152695

In the building of Patent Document 1, when the truss frames facing each other are displaced due to rolls during an earthquake, both truss frames holding the damper move in parallel with each other and follow the horizontal direction of the damper by both truss frames. The mounting interval does not change greatly. For this reason, the amount of deformation of the damper sandwiched between the truss frames is small, and the damping force generated in the damper is small. Therefore, the damping effect of the damper on the building is low, and the deformation and roll of the building cannot be effectively reduced.

An object of the present invention is to enhance the vibration damping effect exerted on a building by the vibration damping device, and to effectively reduce the deformation and roll of the building.

According to the first aspect of the present invention, in a building composed of a ramen frame in which a column and a beam are joined, a stud is erected on the beam of the ramen frame of the building, and a brace including a vibration damping device is oblique to the stud. The stud standing part of the beam constituting the frame frame of the building is fixed to the lower structure.

According to a second aspect of the present invention, in the first aspect of the present invention, the brace is disposed between two studs inside the ramen frame.

According to a third aspect of the present invention, in a building unit comprising a ramen frame in which a column and a beam are joined, a stud is erected on the beam of the ramen frame, and a brace including a vibration control device is obliquely attached to the stud in a horizontal direction. It is arranged.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the brace is disposed obliquely between two studs inside the ramen frame.

(Claim 1)
(a) When a building stud is tilted due to rolling during an earthquake, the brace including the vibration control device attached to the stud is disposed obliquely with respect to the horizontal direction and includes the stud vibration control device. The mounting interval along the diagonal direction of the brace changes greatly. For this reason, the amount of deformation of the vibration damping device attached to the stud is large, and the damping force generated in the vibration damping device is large.
Therefore, the bracing effect including the vibration damping device has a high vibration damping effect on the building, and the deformation and roll of the building can be effectively reduced.

(b) By fixing the beam of the building to the lower structure such as the foundation or bundle in (a) above, the deformation of the beam is suppressed, and the brace including the vibration control device by the stud standing on the beam is included. The mounting interval along the oblique direction changes more greatly.

(Claim 2)
(c) A brace including a vibration control device was placed between two studs in the building. Therefore, due to the rolling in the event of an earthquake, both studs with the brace including the vibration damping device in between are translated horizontally and deformed into a rhombus shape. The mounting interval along the oblique direction of the included brace is greatly changed.

(d) In (c) above, the beam of the building is fixed to the lower structure such as the foundation or bundle as in (b) above, so that the deformation of this beam is suppressed and the beam is erected 2 The deformation of the rhombus shape of the stud is made larger, and the mounting interval along the oblique direction of the brace including the vibration control device by both studs is changed more greatly.

(Claim 3)
(e) When the stud of the building unit is tilted due to rolling in the event of an earthquake, the brace including the vibration control device attached to the stud is disposed obliquely with respect to the horizontal direction, and includes the vibration control device using the stud. The mounting interval along the diagonal direction of the brace is greatly changed. For this reason, the amount of deformation of the vibration damping device attached to the stud is large, and the damping force generated in the vibration damping device is large. Therefore, the bracing effect including the vibration damping device has a high vibration damping effect on the unit building, and can effectively reduce the deformation and roll of the unit building.

(f) The brace including the vibration control device by the stud standing on the beam by suppressing the deformation of the beam by fixing the beam of the building unit to the lower structure such as a foundation or a bundle in (e) above. The mounting interval along the oblique direction of the is changed more greatly.

(Claim 4)
(g) A brace including a vibration damping device was placed between the two studs of the building unit. Therefore, due to the rolling in the event of an earthquake, the two studs with the braces including the vibration control device between them will move parallel to each other and deform into a rhombus shape. The mounting interval along the oblique direction of the included brace is greatly changed.

(h) In the above (g), the beam of the building unit is fixed to the lower structure such as a foundation or a bundle as described in (f), so that the deformation of the beam is suppressed, and the beam is erected on the beam. The deformation of the rhombus shape of the two studs is made larger, and the mounting interval along the oblique direction of the brace including the vibration control device by both studs is changed more greatly.

FIG. 1 is a schematic front view showing a building unit, FIG. 2 is a cross-sectional view showing a foundation fixing structure of the building unit, FIG. 3 shows a building unit fixed on the basis of a stud standing part of a floor beam, and FIG. (B) is a schematic front view in a rolling state, and FIG. 4 is a schematic front view showing a rolling state of a building unit that is not fixed based on a stud standing part of a floor beam. It is.

The unit building of the present invention is constructed by installing a plurality of building units 10 as shown in FIG.

The building unit 10 includes a grooved steel floor beam 12 between four lower ends of 11 of a pillar made of, for example, a square steel pipe.
Is composed of a frame frame 10A in which a grooved steel ceiling beam 13 is bridged between upper end portions.

The building unit 10 is provided with a damping structure as described below in a region where no window or the like is provided in the wall surface between the floor beam 12 and the ceiling beam 13 inside the ramen frame 10A.

(1) Install the building unit 10 on the foundation 1. The leg portion of the column 11 and the floor beam 12 of the building unit 10 are fixed to the foundation 1 by the anchor bolt 2 (FIG. 2). At this time, (4) described later may be performed.

(2) Two shaped steel studs 14 and 15 are erected between the floor beam 12 and the ceiling beam 13 inside the ramen frame 10A. The studs 14 and 15 are joined to the floor beam 12 and the ceiling beam 13 with bolts 16.

(3) A brace 21 including a vibration damping device 20 (20A, 20B) such as an oil damper is attached to the two studs 14 and 15 by bolt joining or pin joining. The brace 21 including the vibration damping device 20 is sandwiched between the two studs 14 and 15 and is disposed so as to be inclined with respect to the horizontal direction. In the present embodiment, one end of a brace 21 of two damping devices 20A and 20B (for example, a brace connected to a piston rod of an oil damper) is attached to a mounting portion 14A provided at an intermediate portion of the stud 14, and the damping device 20A. The other end of the brace 21 (for example, the brace connected to the cylinder of the oil damper) is connected to the upper end mounting portion 15A of the stud 15 and the vibration damping device 20
The other end of the B brace (for example, a brace connected to the cylinder of the oil damper) is attached to the lower end attaching portion 15B of the stud 15.

(4) The standing portions of the studs 14 and 15 in the floor beam 12 of the building unit 10 are fixed to the foundation 1 with the anchor bolts 2 (FIG. 2). The floor beam 12 is provided with welded anti-opening plates 12A across the upper and lower flanges at the standing portions of the studs 14 and 15.

Hereinafter, a deformation mechanism of the ramen frame 10A by the horizontal force F (FIG. 3A) acting on the building unit 10 during an earthquake or the like will be described.

As described above, the standing portions of the studs 14 and 15 in the floor beam 12 of the building unit 10 are as follows.
When the anchor frame 2 is fixed to the foundation 1 as shown in FIG. 3B, the two studs 14 and 15 move in parallel in the horizontal direction when the frame 10A rolls due to the horizontal force F as shown in FIG. Floor beam 1 which is deformed into a rhombus shape but is sandwiched between both studs 14 and 15
Since 2 is fixed to the foundation 1 and does not float, the deformation of the rhombus shape formed by the studs 14 and 15 together with the floor beam 12 and the ceiling beam 13 becomes larger. Thereby, the amount of change in the mounting interval along the oblique direction of the brace 21 including the vibration damping devices 20A and 20B by the studs 14 and 15, in other words, the deformation amount uL1 of the brace 21 including the vibration damping devices 20A and 20B,
dL2 can be increased.

On the other hand, when the standing part of the studs 14 and 15 in the floor beam 12 of the building unit 10 is not fixed to the foundation 1, as shown in FIG. The floor beam 12 sandwiched between the studs 14 and 15 is lifted from the foundation 1, and the deformation of the rhombus shape formed by the studs 14 and 15 together with the floor beam 12 and the ceiling beam 13 is small. Thereby, the amount of change in the mounting interval along the oblique direction of the brace 21 including the vibration damping devices 20A and 20B by both studs 14 and 15, in other words, the deformation amount uL2 of the brace 21 including the vibration damping devices 20A and 20B, dL2 becomes smaller.

That is, uL1> uL2, dL1> dL2, and the brace 21 including the vibration damping devices 20A and 20B in FIG. 3 is deformed more than in FIG. High damping effect.

As the vibration damping device 20 (20A, 20B), an oil damper, a friction damper, a viscoelastic damper, or the like can be employed. The oil damper is constructed by inserting a piston rod into the cylinder,
The viscous resistance of the oil in the cylinder is absorbed by a damping valve mechanism provided in a piston disposed in the cylinder, and a damping force is generated. Since the damping device 20 (20A, 20B) has a large damping force when the moving speed of the piston rod is fast and decreases when the moving speed is slow, the damping device 20 (20A, 20B) has a large damping effect against a sudden shaking of the building unit 10. Effect.

According to the present embodiment, the following operational effects can be obtained.
(a) When the studs 14 and 15 of the building unit 10 are inclined due to the rolling of the earthquake, the brace 21 including the vibration control devices 20 (20A and 20B) attached to the studs 14 and 15 The damping device 20 (by the studs 14 and 15)
20A, 20B), the mounting interval along the oblique direction of the brace 21 is greatly changed. For this reason, the amount of deformation of the vibration damping device 20 (20A, 20B) attached to the studs 14 and 15 is large, and the damping force generated in the vibration damping device 20 (20A, 20B) is large. Therefore, the bracing 21 including the vibration damping device 20 (20A, 20B) has a high vibration damping effect on the unit building and can effectively reduce deformation and roll of the unit building.

(b) By fixing the floor beam 12 of the building unit 10 to the lower structure such as the foundation 1 or a bundle in the above (a), the deformation of the floor beam 12 is suppressed, and the stud erected on the floor beam 12 14, 1
The attachment interval along the oblique direction of the brace 21 including the vibration damping device 20 (20A, 20B) according to 5 is changed more greatly.

(c) The brace 21 including the vibration damping device 20 (20A, 20B) was sandwiched between the two studs 14 and 15 of the building unit 10. Therefore, the vibration control device 20 (20
The studs 14 and 15 holding the brace 21 including A, 20B) are parallel to each other and deformed into a rhombus shape, and the vibration damping device 20 (20A, 20B), the mounting interval along the oblique direction of the brace 21 is greatly changed.

(d) In the above (c), the floor beam 12 of the building unit 10 is fixed to the lower structure such as the foundation 1 or a bundle as described in the above (b), so that the deformation of the floor beam 12 is suppressed, and this floor The two studs 14 and 15 erected on the beam 12 have a larger diamond shape deformation, and both studs 1
4 and 15, the mounting interval along the oblique direction of the brace 21 including the vibration damping device 20 (20A, 20B) is changed more greatly.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configuration of the present invention is not limited to these embodiments, and even if there is a design change or the like without departing from the gist of the present invention. It is included in the present invention. For example, the present invention can be applied to a general building that does not use a building unit.

FIG. 1 is a schematic front view showing a building unit. FIG. 2 is a cross-sectional view showing the foundation fixing structure of the building unit. FIGS. 3A and 3B show a building unit fixed on the basis of a stud standing part of a floor beam, where FIG. 3A is a schematic front view in a state where a horizontal force acts, and FIG. 3B is a schematic front view in a roll state. FIG. 4 is a schematic front view showing a rolling state of a building unit that is not fixed to a floor standing stud part.

Explanation of symbols

10 Building Unit 10A Ramen Frame 11 Column 12, 13 Beam 14, 15 Stud 20, 20A, 20B Damping Device 21 Brace

Claims (4)

In a building consisting of a ramen frame that joins columns and beams,
A stud is erected on the beam of the ramen frame of the building, and a brace including a vibration control device is arranged obliquely with respect to the horizontal direction and attached to this stud.
A building characterized in that the stud standing part of the beam constituting the frame frame of the building is fixed to the lower structure. The brace is disposed between two studs inside a ramen frame.
Listed in the building. In a building unit consisting of a ramen frame that joins columns and beams,
A building unit characterized in that a stud is erected on a beam of a ramen frame, and a brace including a vibration control device is arranged obliquely with respect to the horizontal direction on the stud. The building unit according to claim 3, wherein the brace is disposed obliquely between two studs inside the ramen frame.

Images