JPS63107660A - Earthquake resistant wall - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a shear wall having viscous damping performance and restoring force.

[Problem that the invention seeks to solve]

Conventionally, various methods have been used to improve the seismic performance of structures, such as shear 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 restraint walls. have been proposed, but no one has developed one that has both sufficient damping ability and restoring performance.

This invention was made based on these circumstances, and it has been proposed in JP-A No. 61-87068 that the shear wall exhibiting the damping performance has the resistance function of a conventional shear wall, that is, it has both horizontal rigidity and horizontal bearing capacity. It is intended to combine the performance of

[Means for solving problems]

In the present invention, the shear wall in JP-A No. 61-87068,
In other words, a statically rigid shear wall with a viscous material filled between a rising wall and a hanging wall, both of which have high rigidity, can be used to create a shear wall with restoring performance by horizontally attaching an elastic body to a shear wall that only exhibits damping performance. Form.

The elastic body is a material such as rubber that has elastic, elasto-plastic, or viscoelastic properties, and is attached to either the upper or lower end between the upright wall and the hanging wall that make up the earthquake-resistant wall, and allows both walls to move relative to each other. condition, giving the shear wall its own restoring force.

Furthermore, a clearance is provided at both ends of the rising wall and the hanging wall to limit their range of motion, and the size of this clearance is set to a design value to ensure that both walls can come into smooth contact with each other and that the wall is strong enough to withstand the contact force. By providing sufficient strength to both ends of both walls, they come into contact when the relative horizontal displacement exceeds the design value, forming a shear wall with high rigidity and strength that operates as a unit.

〔Example〕

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

The earthquake-resistant wall A of the present invention has a viscous material (including a viscoelastic material) 3 filled between a rising wall 1 rising from a frame B on the lower floor and a hanging wall 2 hanging down from the frame B on the upper floor, and an elastic material 4. It is constructed by attaching.

First, the first invention will be explained with reference to FIGS. 1 and 2.

In this invention, as shown in the drawings, an elastic body 4 is horizontally attached between a rising wall 1 and a hanging wall 2 at either the upper or lower ends, and the two are movably joined.

Both the rising wall 1 and the hanging wall 2 are made of steel plates or the like with high rigidity, and are separated from the upper floor frame B and the lower floor frame B with a gap, respectively. For example, one is arranged so as to surround the other.

Between both walls 1 and 2 is a shear wall A that absorbs the horizontal force during an earthquake.
is filled with a viscous material 3 that exhibits viscous damping performance.

As shown in FIG. 2, an elastic body 4 is attached to the upper or lower end of the rising wall 1 and the hanging wall 2, and the two are joined together. In the illustrated example, the elastic body 4
The splint plate 5 is connected to the rising wall 1 and the hanging wall 2 respectively.
, 5, but it may also be directly attached to both walls 1.2.

Next, the second invention will be explained with reference to FIGS. 3 and 4.

This invention provides a clearance C1 between opposing surfaces of both ends of the rising wall 1 and the hanging wall 2 in the first invention, that is, both walls 1
, 2, and set this as a target value, and by giving both ends sufficient strength to withstand the contact force of both walls 1 and 2, the relative movement of both walls 1 and 2 is controlled. The seismic wall A is given elastic-plastic restoring force so that both walls 1 and 2 operate as one in a range exceeding the distance. Note that a cushioning material 6 may be adhered to at least one of the opposing surfaces of both ends, as shown in the figure, in order to smooth the contact between both walls 1.2.

In this invention, as shown in FIG.
One of the two walls 1.2 is arranged so as to surround the other, and a clearance C is secured between the opposing surfaces of both ends of both walls 1.2 to set a movable distance. The cushioning material 6 is shown in Fig. 3-H.
It is vertically adhered to either side facing each other with a clearance C in between.

Figure 4 shows an example of how the end of the shear wall A fits.

As shown in FIG. 5, the shear wall A of this invention has a viscous damping force due to the viscous material 3 represented by Kr within a relative movable distance l, which is the distance of the clearance C between the upright wall 1 and the hanging wall 2. and elastic or viscoelastic restoring force due to the elastic body 4, and in a range beyond this, high horizontal rigidity and high horizontal proof stress are exhibited by the integrated rising wall 1 and hanging wall 2, which are indicated by Ks.

Next, the third invention will be briefly explained with reference to FIG.

In the first or second aspect of the present invention, guides 7 that fit into each other are horizontally provided on opposing sides of the rising wall 1 and the hanging wall 2 as shown in FIG. .2 can be slid relative to each other only in the horizontal direction, thereby reducing the influence of the rotational moment due to the horizontal resistance force of the shear wall A acting on the end portion of the mounting of both walls 1 and 2.

FIG. 6-■ shows details of the upper and lower ends of FIG. 6-1 showing the entire seismic wall A.

〔Effect of the invention〕

As described above, this invention adds an elastic body that exhibits restoring performance to a seismic wall having viscous damping ability by means of a viscous material filled between a rising wall and a hanging wall, so that the following effects can be obtained.

The deformation capacity of the shear wall is increased and it also has a well-defined elastic stiffness, making it possible to adjust the stiffness of the building.

Even in the event of an excessive earthquake input, the shear wall always returns to its original position.

More particularly, in the second aspect of the invention, when a certain deformation is exceeded, the rising wall and the hanging wall together resist, and this effectively functions as a stopper, a hysteresis damper, and a fail-safe mechanism.

[Brief explanation of the drawing]

Figures 1 and 2 show the first invention, and Figure 1-
■ and ■ are the front view and cross-sectional view, respectively, and Figure 2 is the first
This is a partially enlarged view of Figure -■. Figures 3 and 4 show the second invention, and Figure 3-
■ is a cross-sectional view, ■ is a partially enlarged view, Figure 4 is a detailed view of the end, Figure 5 is a conceptual diagram showing the restoring force characteristics of the shear wall according to the second invention. Figure 6 shows the third invention, where I is a longitudinal sectional view and ■ is a partially enlarged view. A・---- Earthquake-resistant wall, 1----- Standing wall, 2-------
- 1 hanging wall, B... - skeleton, 3 - viscous material, 4 - elastic body, 5 - splinter, 6 - cushioning material, 7... --- Guide, c --- Clearance (set movable distance). Figure 4 Figure 6 Figure-1 Figure 6-II

Claims (3)

[Claims] (1) Between a highly rigid rising wall that rises from the lower floor skeleton and is separated from the upper floor skeleton and a similarly rigid hanging wall that hangs down from the upper floor skeleton parallel to this and is separated from the lower floor skeleton. A quake-resistant wall made by filling a viscous material with a viscous material, and characterized in that an elastic body is installed horizontally between a rising wall or a hanging wall at either the upper or lower ends, and they are movably joined to each other. . (2) Consists of a highly rigid rising wall that rises from the lower floor frame and is separated from the upper floor frame, and an equally rigid hanging wall that hangs down from the upper floor frame parallel to this and is separated from the lower floor frame. , is an earthquake-resistant wall in which either a rising wall or a hanging wall is placed around the other, and a viscous material is filled between the two walls, and an elastic wall is formed between the rising wall and the hanging wall at either the upper or lower ends. The body is mounted horizontally and connected to each other in a movable state, and a clearance is provided between the opposing surfaces of the rising wall and hanging wall at both ends to limit the range of movement, and only enough space is provided at both ends to withstand the contact force between the two walls. A seismic wall characterized by having a strength of . (3) Between a highly rigid rising wall that rises from the lower floor frame and is separated from the upper floor frame and a similarly rigid hanging wall that hangs down from the upper floor frame parallel to this and is separated from the lower floor frame. This is a seismic wall made by filling a viscous material with an elastic body installed horizontally between the rising wall and the hanging wall on either the upper or lower ends, movably connecting the rising wall and the hanging wall. A seismic wall characterized by horizontally protruding guides that fit into each other on opposing sides of both walls so that they can slide only in the horizontal direction.