JP3677721B2 - Vibration control frame system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vibration control frame, and more particularly to a vibration control frame system in which a brace-type damper works effectively against relative deformation in both the horizontal and vertical directions.
[0002]
[Prior art]
As a conventional vibration control frame, for example, a brace damper 5 is generally installed on each floor as shown in FIG. In addition, as shown in FIG. 4 (b), there has been proposed a structure in which two or more multi-layer earthquake-resistant walls 1 arranged at regular intervals are connected and integrated by a plurality of damper materials 2. In this case, the damper material 2 is a boundary beam made of a mild steel material, or a boundary beam having a hysteresis system or a viscous system damping device interposed in the middle part.
Further, as shown in FIG. 4 (c), the multistory shear walls 1 are connected by a plurality of boundary beams made of ordinary steel 4, and braces or viscoelastic dampers made of mild steel are used as constituent elements between the boundary beams. A truss structure with a damper 5 attached has also been proposed.
[0003]
[Problems to be solved by the invention]
Among the conventional vibration control frames shown in Fig. 4 (a), energy can be absorbed efficiently for horizontal relative displacement in each layer of the building, but for vertical relative displacement, There is almost no energy absorption, and according to the method shown in FIGS. 4 (b) and 4 (c), energy can be absorbed efficiently with respect to the relative displacement in the vertical direction between the two multistory shear walls 1. There is a problem in that the amount of energy absorption is small with respect to the relative displacement in the horizontal direction, and a sufficient damping effect is not always obtained.
[0004]
The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a vibration control frame system capable of efficiently absorbing energy with respect to relative displacement in both horizontal and vertical directions.
[0005]
[Means for Solving the Problems]
As a technical means for achieving this object, the present invention comprises two or more multi-layer seismic walls or multi-layer seismic elements that are arranged at a certain interval and connected and integrated with a plurality of damper materials. The gist of the vibration control frame system is a structure in which the multi-layer seismic elements are removed only at certain parts where relative displacement occurs in both horizontal and vertical directions of the multi-layer seismic elements using multi-layer seismic walls or braces, and a brace type damper is incorporated between them To do.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 (a) shows an embodiment of a vibration control frame system according to the present invention. Reference numeral 1 denotes a multi-layer earthquake-resistant wall arranged at a constant interval, and a plurality of damper materials 2 are provided between them. Connect and integrate. In the figure, an example of two multi-layer seismic walls 1 is shown, but it is usually formed by two or more multi-layer seismic walls. Further, as shown in FIG. 1B, a multi-layer seismic element using braces 6 may be used instead of the multi-layer seismic wall 1.
[0007]
In the multi-layer seismic element using the multi-layer seismic wall 1 or the brace 6, the specific portions 1a and 1b which are likely to cause horizontal and vertical relative displacement at the time of an earthquake are removed from the multi-layer seismic element, and a brace type between them. Install dampers 3 respectively. Although this brace type damper 3 showed the example attached to X shape, it may be one diagonal material.
[0008]
For example, in the case where B × H is 300 cm × 300 cm as shown in FIG. 2 and the horizontal bracing L = 3 cm as shown in FIG. 2, the brace damper 3 is stretched by about 2.13 cm. become. When L = 3 cm is deformed in the horizontal direction as shown in FIG. 3 and V = 3 cm is also deformed in the vertical direction, the elongation of the brace-type damper 3 is twice the deformation of only 3 cm in the horizontal direction, that is, about 4.25 cm.
[0009]
Therefore, the energy absorption at the time of an earthquake becomes remarkably large by providing the brace-type damper 3 between the part where horizontal deformation and vertical deformation occur simultaneously, that is, the specific parts 1a and 1b. Incidentally, the amount of energy absorption is twice that of the conventional friction damper of the completely rigid plastic type and four times that of the oil damper.
In addition, it is preferable to provide the brace type damper 3 in an X shape as described above, since it can balance against shaking during an earthquake.
[0010]
【The invention's effect】
As described above, according to the present invention, since it is a vibration-damping frame system that effectively operates the brace-type damper against the relative displacement in both the horizontal and vertical directions, the energy absorption is significantly larger than the conventional one, There is an effect of increasing the vibration control effect.
In addition, the amount of energy input to the other part of the multistory shear wall is reduced, and the vibration damping structure can be easily designed.
[Brief description of the drawings]
1A and 1B show an embodiment of a vibration control frame system according to the present invention, in which FIG. 1A is a schematic view of a multi-layer seismic wall, and FIG. Fig. 2 is an explanatory diagram when the relative displacement is in the horizontal direction. Fig. 3 is an explanatory diagram when the relative displacement is in the horizontal direction and the vertical direction. Fig. 4 is an explanatory diagram of the conventional example. Explanation of]
DESCRIPTION OF SYMBOLS 1 ... Multistory shear wall 2 ... Damper material 3 ... Brace type damper 4 ... Normal steel 5 ... Brace damper 6 ... Brace

Claims (1)

Multi-layer seismic elements using two or more multi-layer seismic walls or braces arranged at regular intervals are connected and integrated with multiple damper materials, and multi-layer seismic walls using multi-layer seismic walls or braces A vibration-damping frame system characterized by a structure in which a multi-layer seismic element is removed only at a specific part where relative displacement occurs in both the horizontal and vertical directions of the element, and a brace type damper is incorporated between them.

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