JP2585606Y2 - Structure damping device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for damping a structure in which a structural body and a PC outer wall are connected via a fastener.

[0002]

2. Description of the Related Art FIG. 6B shows a conventional structure body a and a PC.
The outline of a joint portion with an outer wall curtain wall b is shown, and both are joined via a fastener c. As shown in FIG. 7, when the building A shakes due to an earthquake or the like, the sweep deformation δ of the PC outer wall curtain wall is:
Approximately equal to the product of the length L of the fastener c and the rotation angle θ,
It was determined by the length L of the fastener.

[0003]

However, in the above-mentioned conventional structure, since there is no restoring spring on the PC outer wall curtain wall, there is a difference between the PC outer wall curtain walls after the earthquake. The present invention has been proposed in view of the above-mentioned problems of the prior art, and its object is to provide a vibration damping structure for a structure that can be expected to have an increased horizontal deformability during an earthquake or the like and a restoring force. Is to do.

[0004]

In order to achieve the above object, a vibration damping device for a structure according to the present invention comprises a structure skeleton
C. A mounting structure for an outer wall of a structure, wherein the outer wall curtain wall is connected via a sliding fastener, wherein the fastener, the structural body of the fastener and the PC
A damping washer is formed between a pair of upper and lower steel washers and a joining member to the outer wall curtain wall, with a vibration damping washer integrally formed therebetween.

[0005]

Since the present invention is configured as described above,
When an sway displacement occurs in the PC outer wall curtain wall during an earthquake or the like, and the sliding fastener rotates about the axis of the joining member to the structural body and the PC outer wall curtain wall, one and two pairs of upper and lower steel seat plates in the vibration damping member are used. The torsional deformation occurs due to the viscous resistance of the viscous resin sandwiched between them, and resists the rotation of the sliding fastener.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a structural body, 2 is a PC outer wall curtain wall, and is connected via a sliding fastener 3. Reference numerals 4 and 5 denote bolts 4 and nuts for joining the fastener 3 to the frame 1 of the structure and the PC outer curtain wall 2, respectively. A sliding fastener 3 is provided between the sliding fastener 3 and the bolt 4 and the nut 5.
The damping washer 6 is interposed between the steel washer 6 and the upper and lower steel washer 6a, as shown in FIGS.
The viscous resin 7 is integrally sandwiched between 6a.

In the embodiment shown in the drawing, when the structure is shaken due to an earthquake or the like and the sliding fastener 3 rotates about the bolt 5, the vibration damping washer 6 is moved to the position shown in FIG. 5, twisting occurs as shown in FIG. 5, the torsional resistance of the damping washer 6 is caused by the viscous resistance of the viscous resin 6b between the upper and lower steel washers 6a, 6a, and resists the rotation of the sliding fastener 3,
A restoring force due to torsion occurs.

[0008]

According to the present invention, as described above, a damping washer is used in which a viscous resin is integrally sandwiched between a pair of upper and lower steel plates, and the damping washer is attached to the structure body and the PC outer wall curtain. By interposing between the sliding fastener connecting the walls and the joining member of the fastener to the skeleton and the PC outer wall curtain wall, the structure is shaken in the event of a wind or an earthquake due to the restoring force due to the torsion of the damping washer. Can be reduced. Further, the vibration suppression washer is small in size, light in weight, simple in structure, and easy to construct. Furthermore, since it is used in a large amount in one structure, it is mass-produced, the unit price is low, and the vibration suppression washer can be attached to an existing sliding fastener.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view showing one embodiment of a structure vibration damping device according to the present invention.

FIG. 2 is a side view of a vibration suppression washer.

FIG. 3 is a plan view of a vibration suppression washer.

FIG. 4 is a perspective view showing a normal state of a vibration suppression washer.

FIG. 5 is a perspective view showing the torsional resistance of the vibration suppression washer.

FIGS. 6A and 6B are explanatory diagrams showing a normal state of a building and an outer wall of a curtain wall, respectively.

FIGS. 7 (a) and 7 (b) are explanatory views showing a swing displacement of a building and a spatial displacement of an outer wall of a curtain wall, respectively.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Structure body 2 PC outer wall curtain wall 3 Sliding fastener 4 Bolt 5 Nut 6 Damping washer 6a Steel washer 6b Viscous resin

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E04B 2/88-2/94

Claims (1)

(57) [Scope of request for utility model registration] 1. A mounting structure for a structural outer wall in which a structural body and a PC outer wall curtain wall are connected via a sliding fastener, wherein a fastener and a joining member of the fastener to the structural body and the PC outer wall curtain wall are provided. A vibration damping device for a structure, comprising a vibration damping washer configured by integrally sandwiching a viscous resin between a pair of upper and lower steel washers.