JP5361772B2 - Lid member mounting structure, seismic isolation structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cover member mounting structure that can reduce noise made when an automobile or the like passes on the cover member after adjusting the inclination of the cover member, and a base isolation structure. <P>SOLUTION: Vibration generated when the automobile or the like passes on the cover member 34 is transmitted to a vibration absorbing member 56 through an internal thread part 52 and an external thread part 54 provided at an adjusting member 48 mounted to the other end of the cover member 34. When the vibration is transmitted to the vibration absorbing member 56, a rubber member 60 held between plate members 62 is deformed to absorb the vibration generated when the automobile or the like passes on the cover member 34. Since both vertical direction surfaces of the rubber member 60 are bonded to the plate member 62, deformation at both vertical direction surfaces of the rubber member 60 is suppressed. That is, since the deformation of both vertical direction surfaces of the rubber member 60 is suppressed, concentration of deformation on both vertical direction surfaces is prevented, and the rubber member 60 is deformed as a whole to absorb the vibration. Noise is thereby reduced. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a lid member mounting structure and a seismic isolation structure having this structure.

  The seismic isolation structure described in Patent Literature 1 includes a foundation and a building constructed on the foundation via a seismic isolation device. A seismic isolation clearance is provided in the horizontal direction between the retaining wall of the foundation and the outer peripheral wall of the building, and a lid member (dog running) is provided so as to cover the seismic isolation clearance.

  Furthermore, a damping member that attenuates (absorbs) horizontal vibration generated between the building and the retaining wall is provided between the distal end side of the lid member and the retaining wall.

JP 2002-115420 A

  However, the conventional structure can absorb the vibration in the horizontal direction but cannot absorb the vibration in the vertical direction. For this reason, when an automobile or the like passes over the lid member, the lid member may vibrate in the vertical direction to generate noise. In the conventional structure, since the lid member is fixed to the outer peripheral wall of the building, the inclination of the lid member cannot be adjusted.

  The subject of this invention is reducing the noise which generate | occur | produces when a motor vehicle etc. pass on the top of a cover member, after making the inclination of a cover member adjustable.

  The lid member mounting structure according to claim 1 of the present invention is a lid member that covers an upper portion of a seismic isolation clearance provided between an outer peripheral wall of an upper structure and a retaining wall constructed around the outer peripheral wall. A rotation connecting member that rotatably connects one end side of the lid member to the outer peripheral wall, and is fixed to the other end side of the lid member and supported by the upper surface of the retaining wall, and the inclination of the lid member An adjustment member that adjusts the vibration, and a vibration absorption member that is provided on the adjustment member and absorbs vibration in the vertical direction. The vibration absorption member includes an elastically deformable rubber member, and a vertical direction of the rubber member. And a pair of plate members bonded to both sides.

  According to the said structure, the cover member is provided so that the upper part of the seismic isolation clearance provided between the outer peripheral wall of an upper structure and the retaining wall constructed | assembled around this outer peripheral wall may be covered.

  Further, the one end side of the lid member is rotatably connected to the outer peripheral wall of the upper structure by the rotation connecting member, so that the other end side of the lid member swings in the vertical direction. The other end of the lid member is supported on the upper surface of the retaining wall, and is provided with an adjustment member that adjusts the inclination of the lid member and supports the load of the lid member. A vibration absorbing member that absorbs vibration in the direction is provided.

  Furthermore, the vibration absorbing member includes a rubber member that can be elastically deformed and a pair of plate members that are bonded to both surfaces in the vertical direction of the rubber member.

  When an automobile or the like passes over the lid member, the rubber member sandwiched between the plate members is deformed, so that vibration is absorbed and noise is reduced.

  Here, since both surfaces of the rubber member in the vertical direction are bonded to the plate member, deformation of the rubber member to which the plate member is fixed on both surfaces in the vertical direction is suppressed. For this reason, the deformation of the rubber member is prevented from being concentrated on both sides in the vertical direction, and the side surface of the rubber member bulges outward, so that the rubber member is entirely deformed and the vibration is effectively absorbed.

  As described above, by providing the vibration absorbing member on the adjustment member, it is possible to adjust the inclination of the lid member and reduce noise generated when an automobile or the like passes over the lid member. .

  According to Claim 2 of the present invention, the lid member mounting structure according to Claim 1 is characterized in that the vertical load received by the lid member is between the lower surface of the lid member and the upper surface of the retaining wall. A load transmission member for transmitting to the retaining wall is provided.

  According to the above configuration, the load transmitting member transmits the vertical load received by the lid member to the retaining wall between the lower surface of the lid member and the upper surface of the retaining wall. It is possible to prevent the lid member from being damaged when loaded.

  A seismic isolation structure according to claim 3 of the present invention includes a seismic isolation device provided between an upper structure and a foundation structure, an outer peripheral wall of the upper structure, and a retaining wall rising from the foundation structure. The cover member mounting structure according to claim 1 or 2 covering an upper part of a seismic isolation clearance provided between the first and second members.

  According to the said structure, the seismic isolation apparatus is provided between the upper structure and the foundation structure. The lid member mounting structure according to claim 1 or 2 is provided so as to cover an upper part of the seismic isolation clearance provided between the outer peripheral wall of the upper structure and the retaining wall rising from the foundation structure. ing.

  As described above, the cover member mounting structure according to claim 1 or 2 is provided so that the inclination of the cover member can be adjusted, and noise generated when an automobile or the like passes over the cover member. Can be reduced.

  ADVANTAGE OF THE INVENTION According to this invention, after making the inclination of a cover member adjustable, the noise which generate | occur | produces when a motor vehicle etc. pass on the cover member can be reduced.

It is sectional drawing which showed the attachment structure of the cover member which concerns on embodiment of this invention. (A) (B) It is sectional drawing which showed the attachment structure of the cover member which concerns on embodiment of this invention. (A) (B) It is sectional drawing which showed the attachment structure of the cover member which concerns on embodiment of this invention. (A) (B) It is sectional drawing which showed the vibrational absorption member used for the attachment structure of the cover member which concerns on embodiment of this invention. It is the perspective view which showed the attachment structure of the cover member which concerns on embodiment of this invention. It is sectional drawing which showed the seismic isolation structure by which the attachment structure of the cover member which concerns on embodiment of this invention was employ | adopted.

  An example of a lid member mounting structure and a seismic isolation structure according to an embodiment of the present invention will be described with reference to FIGS. In the figure, the arrow UP indicates the upper side in the vertical direction.

(overall structure)
As shown in FIG. 6, the seismic isolation structure 10 is constructed by a plurality of cylindrical piles 12 embedded in the ground (GL) in the vertical direction and the ground (GL) and supported by the piles 12. And a foundation structure 14.

  Further, an upper structure 24 is provided on the upper side (vertical direction upper side) of the foundation structure 14 via a seismic isolation device 16 using laminated rubber. The upper structure 24 includes a beam member 18 extending in the horizontal direction, a column member 20 extending in the vertical direction, and an outer peripheral wall 22 provided on the outer periphery. When relative displacement occurs in the horizontal direction between the upper structure 24 and the foundation structure 14 due to an earthquake or the like, the horizontal seismic force is reduced by elastically deforming the laminated rubber of the seismic isolation device 16. It is supposed to be. That is, the vibration period of the upper structure 24 is increased, the vibration that is about to propagate from the basic structure 14 to the upper structure 24 due to an earthquake or the like is alleviated, and the stress and deformation generated in the housing of the upper structure 24 are reduced. It is supposed to suppress.

  The foundation structure 14 is provided with a retaining wall 28 that rises vertically upward from the outer periphery, and the retaining wall 28 is disposed so as to surround the lower part of the upper structure 24 from the outside. Furthermore, an extending portion 28 </ b> A that forms part of the retaining wall 28 and extends toward the outer peripheral wall 22 of the upper structure 24 is provided at the upper end portion of the retaining wall 28. And between the front-end | tip part of the extension part 28A, and the outer peripheral wall 22 of the upper structure 24, it is the space for accept | permitting the horizontal relative displacement between the upper structure 24 and the foundation structure 14. FIG. Seismic isolation clearance 30 is provided.

  Further, a lid member 34 attached by an attachment structure 32 is provided so as to cover the upper part of the seismic isolation clearance 30.

  In this way, by providing the lid member 34 so as to cover the upper part of the seismic isolation clearance 30, it is possible to prevent rainwater, mice, etc. from entering the seismic isolation clearance 30 and dropping people and objects. A person or a vehicle can pass through the upper surface of the lid member 34.

(Main part configuration)
Next, the attachment structure 32 of the lid member 34 will be described.

  As shown in FIG. 5, the lid member 34 has a plate shape made of precast concrete (made of PC) manufactured in advance in the factory, not on-site, and is provided in a plurality on the outer periphery of the outer peripheral wall 22. .

  The lid member 34 is embedded with a rectangular glass block for taking natural light into the seismic isolation layer 42 (see FIG. 1), which is a space provided between the foundation structure 14 and the upper structure 24. A daylighting window 44 is provided. Further, one end side of the lid member 34 is fixed to a rotary connecting member 40 fixed to the outer peripheral wall 22, whereby the lid member 34 is rotatably connected to the outer peripheral wall 22. That is, the other end of the lid member 34 swings in the vertical direction. As shown in FIG. 1, the rotation connecting member 40 may have a pin shape and a hole shape that can follow not only the rotation but also the vertical displacement of the lid member 34.

  As shown in FIG. 1, the base end of the iron plate 46 whose tip is in contact with the ground line GL is fixed to the other end of the lid member 34, and the ground line GL and the upper surface of the lid member 34 are smoothly connected. ing. Further, an adjustment member 48 is supported at the other end of the lid member 34 by an upper surface 28B constituting a part of the retaining wall 28, and adjusts the inclination of the upper surface of the lid member 34 and supports the load of the lid member 34. Is provided.

  More specifically, the adjusting member 48 is fixed to the L-shaped L-shaped plate 50 fixed to the other end portion of the lid member 34 by welding or the like, and the adjusting member 48 is fastened to the female screw portion 52 in a vertical direction. And a male screw portion 54 extending in the direction. With this configuration, as shown in FIGS. 2 (A) and 2 (B), by changing the screwing amount of the male screw portion 54 into the female screw portion 52, the lid member 34 is centered on the rotary connecting member 40 (see FIG. 1). The lid member 34 is rotated to adjust the inclination of the lid member 34 (the inclination of the upper surface of the lid member 34).

  Furthermore, a vibration absorbing member 56 that absorbs vibration in the vertical direction is provided at the lower end in the vertical direction of the male screw portion 54. The vibration absorbing member 56 includes a cylindrical rubber member 60 that can be elastically deformed, and a pair of plate members 62 that are bonded to both vertical surfaces of the rubber member 60 (upper and lower surfaces of the rubber member 60) with an adhesive. It has. The plate member 62 placed on the upper surface 28B of the extending portion 28A is not fixed with respect to the upper surface 28B, and is relatively moved with respect to the upper surface 28B.

  With this configuration, as shown in FIGS. 3A and 3B, a horizontal relative displacement occurred between the upper structure 24 and the foundation structure 14 (see FIG. 6) due to an earthquake or a wind. In this case, the vibration absorbing member 56 moves relative to the upper surface 28B between the upper surface 28B of the retaining wall 28 and the plate member 62 of the vibration absorbing member 56 placed on the upper surface 28B, so that the horizontal relative The displacement is absorbed.

  4A and 4B, when vertical vibration is applied to the lid member 34 (see FIG. 3), both vertical surfaces of the rubber member 60 are bonded to the plate member 62. Therefore, deformation of the rubber member 60 to which the plate member 62 is fixed on both sides in the vertical direction is suppressed. For this reason, the deformation of the rubber member 60 is prevented from being concentrated on both sides in the vertical direction, and the side surface of the rubber member 60 bulges outward so that the rubber member 60 is deformed as a whole and absorbs vibration. Yes.

  Further, as shown in FIG. 1, the lid member 34 is received from the outside between the adjusting member 48 and the rotary connecting member 40 and between the lower surface of the lid member 34 and the upper surface 28 </ b> B of the retaining wall 28. A rectangular parallelepiped load transmitting member 66 for transmitting a downward load in the vertical direction to the retaining wall 28 is provided. Specifically, the load transmission member 66 is formed of Teflon (registered trademark) or the like, and is fixed to the upper surface 28B of the retaining wall 28 by a fixing member (not shown). Further, a stainless steel plate member 68 is embedded in the lower surface of the lid member 34 so as to be in contact with the load transmission member 66.

  With this configuration, when the lid member 34 receives a downward load in the vertical direction from the outside, the load transmission member 66 transmits the load received by the lid member 34 to the retaining wall 28. Further, when a horizontal relative displacement occurs between the upper structure 24 and the foundation structure 14 (see FIG. 6) due to an earthquake or a wind, the sliding between the load transmission member 66 and the plate member 68 occurs. The relative displacement in the horizontal direction is absorbed and moved.

(Action / Effect)
When an automobile or the like passes over the lid member 34 attached by the attachment structure 32 described above, vibration occurs in the lid member 34. The vibration generated in the lid member 34 is transmitted to the vibration absorbing member 56 through the female screw portion 52 and the male screw portion 54 attached to the other end portion of the lid member 34.

  As shown in FIG. 4, when vibration is transmitted to the vibration absorbing member 56, the rubber member 60 sandwiched between the plate members 62 is deformed, and this occurs when an automobile or the like passes over the lid member 34. Vibration is absorbed.

  Here, since both surfaces of the rubber member 60 in the vertical direction are bonded to the plate member 62, deformation of the rubber member 60 to which the plate member 62 is fixed on both surfaces in the vertical direction is suppressed. For this reason, the deformation of the rubber member 60 is prevented from being concentrated on both sides in the vertical direction, and the side surface of the rubber member 60 bulges outward, so that the rubber member 60 is deformed as a whole and the vibration is absorbed.

  Further, the downward load in the vertical direction received by the lid member 34 from the automobile or the like is transmitted to the retaining wall 28 by the adjusting member 48 including the vibration absorbing member 56 and the load transmitting member 66.

  As described above, vibrations can be effectively absorbed by bonding both vertical surfaces of the rubber member 60 to the plate member 62 and deforming the rubber member 60 as a whole.

  Further, by absorbing the vibration of the lid member 34, it is possible to reduce noise generated by the vibration of the lid member 34.

  Moreover, it can suppress that the cover member 34 is damaged because the vibration of the cover member 34 is absorbed.

  Further, by changing the screwing amount of the male screw portion 54 into the female screw portion 52, the lid member 34 can be rotated around the rotary connecting member 40, and the inclination of the lid member 34 can be adjusted.

  Further, since the load transmission member 66 transmits the vertical load received by the lid member 34 to the retaining wall 28 together with the adjustment member 48, the lid member 34 is deformed or damaged by an excessive load. Can be prevented. That is, it is possible to prevent the lid member 34 from being damaged by suppressing the lid member 34 from being deformed into a concave shape between the adjustment member 48 and the rotary connecting member 40.

  Further, by using a member made of precast concrete (made of PC) as the lid member 34, it is not necessary to place concrete on site, so that the construction period can be shortened.

  Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to such embodiments, and various other embodiments are possible within the scope of the present invention. It is clear to the contractor. For example, in the above embodiment, the rubber member 60 and the plate member 62 are bonded using an adhesive, but the rubber member 60 and the plate member 62 may be bonded (vulcanized bonding) by vulcanization.

  In the above embodiment, the load transmission member 66 is fixed to the upper surface 28B of the retaining wall 28, and the plate member 68 is embedded in the lower surface of the lid member 34 so that the load transmission member 66 and the plate member 68 can slide. However, the present invention is not limited to this, and the load transmission member may be fixed to the lower surface of the lid member 34, and a plate member that slides with the load transmission member may be embedded in the upper surface 28B of the retaining wall 28.

DESCRIPTION OF SYMBOLS 10 Seismic isolation structure 14 Base structure 16 Seismic isolation apparatus 22 Outer peripheral wall 24 Upper structure 28 Retaining wall 28B Upper surface 30 Seismic isolation clearance 32 Mounting structure (lid member mounting structure)
34 Lid member 40 Rotation connecting member 48 Adjustment member 56 Vibration absorbing member 60 Rubber member 62 Plate member 66 Load transmitting member

Claims (3)

A lid member that covers the upper part of the seismic isolation clearance provided between the outer peripheral wall of the upper structure and the retaining wall constructed around the outer peripheral wall;
A rotary connecting member that rotatably connects one end side of the lid member to the outer peripheral wall;
An adjustment member that is fixed to the other end side of the lid member and is supported by the upper surface of the retaining wall and adjusts the inclination of the lid member;
A vibration absorbing member that is provided on the adjustment member and absorbs vibrations in the vertical direction;
In the vibration absorbing member,
An elastically deformable rubber member;
A pair of plate members bonded to both vertical surfaces of the rubber member;
An attachment structure of a lid member provided.   The attachment of the lid member according to claim 1, wherein a load transmission member for transmitting a vertical load received by the lid member to the retaining wall is provided between a lower surface of the lid member and an upper surface of the retaining wall. Construction. A seismic isolation device provided between the superstructure and the foundation structure;
The lid member mounting structure according to claim 1 or 2, which covers an upper part of a seismic isolation clearance provided between an outer peripheral wall of the upper structure and a retaining wall rising from the foundation structure.
Seismic isolation structure with

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