JPH0411093Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a curtain wall with a built-in viscous damping device, which is mainly used in steel-framed high-rise buildings.

[Conventional technology]

Conventional high-rise buildings have not adopted damping devices that are effective against wind or small to medium-sized earthquakes. Therefore, the damping constant of high-rise buildings is generally very small.
Vibration sometimes became a problem during strong winds such as typhoons. Therefore, some people use it as a vibration countermeasure for high-rise buildings.
Attempts are being made to reduce vibration by incorporating viscous dampers or friction dampers into the walls of buildings.

[Problem that the invention attempts to solve]

However, when incorporating a viscous damper into the inner wall, there are restrictions on layout planning such as how to deal with conventional seismic walls, and with a friction damper, there are problems such as not being able to expect a damping effect at minute amplitudes.

This idea was devised from these circumstances, and its purpose is to eliminate the need to consider dealing with earthquake-resistant walls, and to work reliably even in the case of minute amplitudes, so that buildings can be protected in the event of strong winds or small to medium-sized earthquakes. An object of the present invention is to provide a curtain wall with a built-in viscous damping device having a new configuration capable of reducing vibrations.

[Means for solving problems]

This invention for the above purpose is to provide a damping wall attached to a structure along the inside of a curtain wall on the outer wall of a building, and to place a damping viscous material between the damping wall and the curtain wall. The conventional problems are solved by filling and enclosing and incorporating a viscous damping device into the curtain wall.

[Effect]

In the above configuration, when relative displacement occurs between each layer of the building due to vibration, a shift occurs between the curtain wall and the damping wall, and the viscous body interposed between them creates a resistance corresponding to the relative movement speed. occurs, which reduces vibrations in the building.

Further, this invention will be explained in detail using illustrated examples.

〔Example〕

In the figure, 1 is a steel building structure, 2 is a precast concrete curtain wall, and 3 is a damping wall made of steel plates, which is freely connected to structure 1 with pins 4 against interlayer deformation in the direction perpendicular to the wall surface. do,
It is attached along the inside of the curtain wall 2.

Reference numeral 5 denotes a damping viscous material filled and sealed between the curtain wall 2 and the damping wall 3.

Figures 1 and 2 show the curtain wall 2.
In this embodiment, the lower edge of the curtain wall 2 is fixed to the floor surface 8 with a member 7 such as a fastener or roller, and the upper edge is movable to the upper floor 10 by a slide fastener 9. is supported by

The damping wall 3 is pin-bonded to the upper floor 10 that supports the upper edge of the curtain wall 2 in a state where it is free from interphase deformation in the orthogonal direction of the wall so as not to obstruct the opening 6. The damping wall 3 is installed as a hanging wall in the attic 11, and the viscous material 5 is filled and sealed between the damping wall 3 and the inside of the upper part of the curtain wall 2.

Although not shown in the drawings, the damping wall 3 can also be placed inside the lower part of the curtain wall 2 as a waist wall. It is fixed and the lower edge is movably supported by a slide fastener.

FIGS. 3 and 4 show an embodiment in which there is no opening, and in this case, the damping wall 3 is used as a hanging wall extending over the entire inside of the curtain wall 2, and the damping wall 3 is connected to the upper floor 10 as in the above embodiment. Further, a viscous body 5 is filled and enclosed between the two to interpose the entire body.

In the curtain wall 2 configured in this way, when the building vibrates due to strong winds, earthquakes, etc. and relative deformation δ occurs between each layer as shown in FIGS. 5 and 6, the curtain wall 2 is fixed to the floor surface 8. A shift occurs between the curtain wall 2 which is fixed to the upper floor 10 and the damping wall 3 which is fixed to the upper floor 10, and at the same time, the viscous body 5 interposed between the two Resistance arises. As a result, the vibration energy of the building is attenuated and vibrations are reduced.

[Effect of idea]

As mentioned above, this idea reduces the vibrations of the building by providing a damping wall along the inside of the curtain wall and interposing a damping viscous material between the damping wall and the curtain wall. As a result, the following effects are achieved.

The structure utilizes a curtain wall, which is commonly used as the exterior wall of high-rise buildings, and incorporates a viscous damper within it, so unlike the case where a viscous damper is incorporated into the wall inside a building, it is difficult to connect it to a seismic wall. Since there is no need to consider the arrangement and there are no restrictions on the layout plan, it does not affect the internal floor plan.

All you need is space to install the damping wall inside the curtain wall, and the curtain wall structure and mounting method can be the same as before, so it can be applied not only to new construction but also to renovating existing buildings. can do.

For curtain walls with openings, a damping wall is installed as a hanging wall in the ceiling.
It can be attached to the entire wall surface other than the opening, increasing the area and increasing the damping effect.

Since the damping device is attached to the outer periphery of the building, it efficiently exhibits damping performance not only against shear deformation of the building, but also against bending and torsional deformation.

[Brief explanation of drawings]

The drawings are explanatory diagrams of a curtain wall with a built-in viscous damping device according to this invention. Fig. 1 is a cross-sectional view of a curtain wall with an opening, Fig. 2 is a front view thereof, and Fig. 3 is a curtain wall without an opening. A sectional view of a curtain wall, FIG. 4 is a front view thereof, and FIGS. 5 and 6 are explanatory diagrams showing the relationship between the curtain wall and the damping wall. 1...Structure, 2...Curtain wall, 3...
...Dampening wall body, 5... Viscous body.

Claims (1)

[Scope of utility model registration request] A damping wall is attached to the structure along the inside of the curtain wall on the outer wall of the building, and a damping viscous material is filled and sealed between the damping wall and the curtain wall to create a curtain wall. A curtain wall with a built-in viscous damping device, characterized by having a built-in viscous damping device.