JPH0197764A - Earthquake-control, wall - Google Patents

Abstract

PURPOSE: To form an earthquake control wall having damping and restoration properties by filling a viscous material between an interior wall hanging from an upper story and an exterior wall rising from a lower story parallel to the interior wall, and placing elastic bodies at upper and lower ends so that the walls are horizontally movably bonded to each other. CONSTITUTION: An interior wall 1 and an exterior wall 2 are formed of steel plates or the like and flanges 1a, 2a are installed on the skeletons B of upper and lower stories while other ends are separated from the skeletons B with gaps therebetween. The gap between both walls 1, 2 is maintained by a gap adjusting bolt 5 and a spacer and a viscous material 3 is filled therebetween to take up seismic forces during movement of the interior wall 1 inside the exterior wall 2. Further, elastic bodies 4 are horizontally placed at the upper and lower ends of an earthquake control wall A and bonded thereto so as to permit relative horizontal movements of the walls 1, 2 and impart a restoring force characteristic. The deformability of the earthquake control wall A is thus increased, whereby the earthquake control wall A can always be returned to its original position even at the times of excessive earthquake inputs.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a seismic wall having viscous damping performance and restoring performance.

[Problem that the invention seeks to solve]

Conventionally, in order to improve the seismic performance of structures, various types of seismic walls have been used, such as seismic walls with high rigidity in the elastic region and the ability to absorb hysteretic energy through plasticization, vibration damping devices with only viscous damping ability, and so-called seismic damping walls. Although methods have been proposed, no method has been developed that has both sufficient damping ability and restoring performance.

This invention was made based on this background, and attempts to add restoring performance to a seismic wall that already exhibits the damping performance proposed by the applicant in JP-A-61-87068.

[Means for solving problems]

In the present invention, the shear wall in JP-A No. 61-87068,
In other words, a seismic wall that has a viscous material filled between the inner and outer walls, both of which have high rigidity, has no static rigidity and only exhibits damping performance, and has resilience performance by attaching an elastic body horizontally in the plane. form.

The elastic body is rubber, etc. that has elastic, elasto-plastic, or viscoelastic properties, and is glued to either the upper or lower ends, or both, between the inner and outer walls that make up the damping wall. It is relatively movable horizontally, which gives the shear wall itself an arbitrary restoring force characteristic.

〔Example〕

The present invention will be explained below based on the drawings showing one embodiment.

The vibration control wall A of this invention is connected to the upper floor frame B as shown in Fig. 1.
A viscous material (including a viscoelastic material) 3 is filled between the inner wall 1 hanging down from the lower floor and the outer wall 2 rising from the frame B of the lower floor, and an elastic material 4 such as rubber is further bonded to both walls L2. It is something.

Both the inner wall 1 and the outer wall 2 are made of highly rigid steel plates, etc.
Upper floor by bolting each flange la, 2a, etc.
It is installed on frames B and B on the lower floor, and separated from frame B on the lower floor and frame B on the upper floor, respectively, with a gap.

Then, one wall is arranged so as to surround the other wall as shown in FIG. Spacer 6
is held by.

Ribs 7 are attached to the two outer walls at required intervals as necessary, and reinforcing members 8 and upper reinforcing members 9 are attached to both ends and the upper end, respectively.

A viscous material 3 is filled between the inner wall 1 and the outer wall 2, which causes the damping wall A to exhibit viscous damping performance.This allows the damping wall A to move within the outer wall 2 due to interstory displacement during an earthquake. When this occurs, a shearing resistance force is generated in the opposite direction to the inner wall 1 due to the viscous material 3, resulting in a structure that absorbs the seismic force.

At this time, in order to eliminate the impact force generated between the inner wall 1 and the viscous material 3, cushioning materials 10 such as sponges are arranged at both ends of the outer wall 2 as shown in FIG. In order to prevent leakage, sealing materials 11 are bonded to the upper end portions of the outer wall 2 at both ends of the inner wall 1, as shown in FIGS. 1-2 and 3.

This sealing material 11 is made of the same material as the elastic body 4 and is disposed continuously to the elastic body 4.

The elastic body 4 imparts arbitrary restoring force characteristics to the damping wall A, and as shown in FIG. 2 and is bonded to both walls 1 and 2 so that they can move relatively horizontally.

This elastic body 4 is, for example, a metal fitting 12 joined to an inner wall 1 and an outer wall 2, as shown in FIGS. ．． 12 by vulcanization adhesive or the like, and similarly to the sealing material 11, it also has the function of preventing the viscous material 3 from flowing out.

FIG. 4 shows an example of the structure of the inner wall 1.

■ and ■ are for single layer and multilayer, respectively, and ■ is for the case where lip 13 is attached to the inner wall l of single layer. 0 The water level in the figure indicates the filling level of the viscous material 3, and the hole of rib 13 in ■ Sometimes it doesn't dawn.

FIG. 5 shows an example of the structure of the outer wall 2.

(2) is a case where the lip 7, reinforcing material 8, and upper reinforcing material 9 are attached to the outer wall 2, (2) is a case without reinforcement, and (2) is a case where the outside of the outer wall 2 is covered with concrete.

〔Effect of the invention〕

As described above, in this invention, an elastic body that exhibits restoring performance is added to the damping wall having viscous damping ability by the viscous material filled between the inner wall and the outer wall, so that the following effects can be obtained.

The deformation capacity of the shear wall is increased, and since it has a clear elastic stiffness, the rigidity of the building can be adjusted, and it has the effect of a shear wall.

The seismic control wall always returns to its original position even when an excessive earthquake input occurs.

[Brief explanation of the drawing]

Figure 1 shows a manufacturing example of the present invention, where ■ is an elevation view;
■ is its x-xH cross-sectional view, ■ is its Y-Y cross-sectional view, Figure 2-! , ■ is a vertical cross-sectional view showing the mounting situation of the elastic body, FIG. 3 is a vertical cross-sectional view showing the sealing material, FIGS. 5-I to 5-5 are vertical cross-sectional views showing examples of the structure of the outer wall. A...Break wall, B...Structure, l...
...Inner wall, 1a...Flange, 2...
・Outer wall, 2a...Flange, 3...Viscous material, 4...Elastic body, 5...Gap adjustment bolt, 6... Spacer, 7...Rib, 8...Reinforcement material, 9...Top reinforcement material, 10...Buffer material, 11...Seal Material, 12+, 12g... Hardware, 13...
·rib. Figure 4(n) CI) (I[[) 'a5(III)

Claims (1)

[Claims] (1) There is a viscosity between the highly rigid inner wall that hangs down from the upper floor frame and is separated from the lower floor frame, and the similarly rigid outer wall that rises parallel to this from the lower floor frame and is separated from the upper floor frame. It is a vibration control wall filled with material,
An elastic body is arranged horizontally in the in-plane direction between the inner wall and the outer wall of at least one of the upper and lower ends, and the elastic body is bonded to both walls so that both can move relatively horizontally. Seismic control wall.