JP2007309022A - Base isolation device for glass panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a structure visually making inconspicuous a base isolation device 3 while sufficiently securing the performance of the base isolation device 3 and capable of acting a force to return glass panels 1, 1 to the original positions after an earthquake. <P>SOLUTION: This base isolation device 3 comprises a support member 4, a support bracket 7, a guide pin 8, a moving bracket 9, an compression coiled springs 10, 10. The glass panels 1, 1 are joined to the moving bracket 9 with an elastic seal adhesive 22. When a considerably small earthquake occurs, each part is displaced as in B, and when a considerably large earthquake occurs, it is displaced as in C. After the earthquake, the glass panels 1, 1 are returned to the original positions by the compression coiled springs 10, 10 and the elastic force of the seal adhesive 22. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is incorporated in a glass panel wall structure in which most of the outer wall surface of a building such as various halls, commercial facilities, and office buildings is covered with a plurality of glass panels, regardless of the shaking (distortion) of the building due to an earthquake. The present invention relates to the improvement of a seismic isolation device that prevents each glass panel from being damaged (cracked). Specifically, a structure capable of making the seismic isolation device inconspicuous while ensuring sufficient performance of the seismic isolation device is realized.

  As a seismic isolation device that incorporates most of the outer wall surface of a building into a glass panel wall structure that covers multiple glass panels to prevent damage to each glass panel, regardless of the shaking of the building due to an earthquake. The structures described in Patent Documents 1 and 2 are known. In the case of the structures described in these Patent Documents 1 and 2, the structure is such that most of the outer wall surface of the building is covered with a plurality of glass panels, and these glass panels are prevented from being damaged during an earthquake. Although it is taken into consideration, depending on the requirements of the owner, there is a possibility that a sufficiently satisfactory design may not be achieved. That is, it is considered that any of the structures described in Patent Documents 1 and 2 are conspicuous in the pressing edges or the sealing material existing between the adjacent glass panels when viewed from the outside. Further, since the structure is not such that the force to return each glass panel to its original position after the earthquake has settled, the positional relationship between these glass panels may be slightly shifted due to the earthquake.

JP-A-8-28148 JP 2005-127097 A

  In view of the circumstances as described above, the present invention can make each component of the seismic isolation device, such as a vertical structure, inconspicuous in appearance while ensuring sufficient performance as a seismic isolation device. The present invention was invented to realize a structure in which a force for returning each glass panel to its original position can be applied after the glass panel is accommodated.

The seismic isolation device for a glass panel according to the present invention supports a plurality of glass panels arranged on the same plane in a state where the edges of each other are close to each other so as to be able to absorb the shaking caused by the earthquake. It is.
Such a seismic isolation device for a glass panel of the present invention includes a support member, a support bracket, a guide pin, a moving bracket, and an elastic member.
Among these, the supporting member is supported by the casing along the edge of a pair of adjacent glass panels among the glass panels.
Further, the support bracket has a pair of fixing plate portions spaced in the arrangement direction of the glass panels, and a surface of the support member that faces a portion near the edge of one side surface of the glass panels. It is fixed.
The guide pin is spanned between the fixed plate portions of the support bracket.
The moving bracket is disposed between the edges of the glass panels facing each other in a state in which the moving bracket can be displaced in the arrangement direction of the glass panels along the guide pins.
The elastic member is provided between both side surfaces of the moving bracket and the both fixed plate portions constituting the support bracket, and urges the moving bracket to a neutral position.
Further, both the glass panels are joined to the moving bracket by a polymer elastic material.

  When implementing the seismic isolation device for glass panels of the present invention as described above, for example, as described in claim 2, the moving bracket is inserted into the guide pin so that the guide pin can be displaced in the axial direction. A displacement plate portion having a base end portion, and a holding plate portion in which the width direction intermediate portion is coupled to a portion protruding from the end edge of both glass panels to the opposite side of the support bracket at the distal end edge of the displacement plate portion The section is T-shaped. And between the front end edge of the both fixed plate portions and the portion near the one side edge of the both glass panels, and the portion near the other side edge of the both glass panels and the holding plate portion, respectively, the polymer Join with elastic material.

According to the seismic isolation device for a glass panel of the present invention configured as described above, each component of the seismic isolation device, such as a vertical structure, is inconspicuous while ensuring sufficient performance as a seismic isolation device. In addition, after the earthquake has stopped, a force to return each glass panel to its original position can be applied.
First, the performance of the seismic isolation device becomes better as the amount of displacement of each glass panel relative to the housing is increased. In the case of the present invention, the displaceable amount includes the displacement amount of the moving bracket with respect to the support bracket when the moving bracket is displaced along the guide pin, and the moving bracket according to the elastic deformation of the polymer elastic material. And the total amount of displacement of each glass panel. For this reason, in the case of this invention, the displacement possible amount of each said glass panel with respect to the said housing can be increased, and the performance as said seismic isolation apparatus can be made favorable.

In addition, the seismic isolation device may be provided on a part of the edge of each glass panel, and among the constituent members of the seismic isolation device, the outside of each glass panel is exposed as described above. Only part of the moving bracket. Therefore, the seismic isolation device can be made inconspicuous in appearance, and the design freedom of the glass panel wall structure is increased.
Further, since the moving bracket is given elasticity to the support bracket by the elasticity of the elastic member, and each glass panel is given elasticity to the neutral position by the elasticity of the polymer elastic material, respectively, the earthquake is applied. After the set, a force to return the glass panels to their original positions is positively applied. For this reason, the positional relationship between these glass panels does not remain shifted due to an earthquake.

  1 to 9 show an example of an embodiment of the present invention. The glass panel wall structure for a building to which the seismic isolation device of the present invention is to be assembled is that a plurality of glass panels 1 and 1 each having a rectangular shape that is long in the vertical direction are regularly arranged on the same vertical plane. It consists of Each of these glass panels 1, 1 is supported by a seismic isolation device 3, which is a feature of the present invention, for a building frame (steel frame) 2 so as to be able to absorb relative displacement with respect to the frame 2 based on the shaking of the earthquake. Yes.

  In order to absorb the relative displacement by the seismic isolation device 3, the glass panels 1 and 1 support the displacement in the horizontal direction when a large force is applied to the housing 2. Yes. For this reason, in the case of this example, as shown in FIGS. 2, 4, and 5, support members 4 and 4 constituting the seismic isolation device 3 are supported on the housing 2. These support members 4 and 4 are members having sufficient strength and rigidity, such as thick steel plates, and the upper and lower end edges of the glass panels 1 and 1 are horizontally disposed with respect to the support members 4 and 4. Supports displacement in direction.

  The upper and lower edges of the glass panels 1 and 1 are held by an upper frame 5 and a lower frame 6 fixed to the casing 2 via a sealing material or the like. When this housing 2 is displaced horizontally between the upper side and the lower side of the glass panels 1, 1 due to an earthquake, one of the upper and lower edges of the glass panels 1, 1 and the upper and lower frames 5, 6. Or both are shifted in the horizontal direction. With such a configuration, even when a strong force is applied in the horizontal direction between the casing 2 and the glass panels 1 and 1 in the event of an earthquake, the glass panels 1 and 1 are attached to the casing 2. On the other hand, it is possible to prevent the glass panels 1 and 1 from being damaged by being displaced in the horizontal direction. However, this alone does not return these glass panels 1 and 1 to their original positions even after the earthquake has stopped. In addition, when the horizontal movement of each glass panel 1 or 1 starts vigorously when an earthquake occurs, the glass panels 1 or 1 collide with each other vigorously, and the glass panels 1 or 1 are damaged. there's a possibility that. Therefore, in the case of this example, a seismic isolation device 3 as described below is provided between each glass panel 1, 1 and each support member 4, 4, and each glass panel 1, 1 is provided when an earthquake occurs. The glass panels 1 and 1 can be returned to their original positions after the earthquake has stopped.

  As shown in FIGS. 4 to 6 and 9, the seismic isolation device 3 includes a support bracket 7, a guide pin 8, a moving bracket 9, and a pair of compression coils that are elastic members in addition to the support member 4. Springs 10 and 10. Of these, the support bracket 7 is made of an aluminum alloy extrusion mold material, and has a pair of fixing plate portions 11, 11 spaced apart in the horizontal direction, and the end face on the outdoor side of the support member 4 (the left end face in FIGS. 4 and 5). 6 and 9 is fixed with screws.

  Further, the guide pin 8 is located at, for example, two positions in the vertical direction of the support bracket 7 (or a desired position according to the required strength, etc., such as four positions). It is stretched between. For this purpose, among these upper portions of the fixed plate portions 11, 11, the positions corresponding to the lower ends of the glass panels 1, 1 and the lower portions of the intermediate portions of the glass panels 1, 1 Concentric circular holes are formed at positions corresponding to the upper end portions (and the portions near both ends in the vertical direction of the fixed plate portions 11 and 11). As shown in FIG. 8, the guide pin 8 is formed by combining a main portion 12 and a fixing screw 13. The main portion 12 includes an outward flange-like flange portion 15 at the base end portion (right end portion in FIG. 8) of the cylindrical guide flange portion 14, and a screw hole 16 at the center of the distal end surface of the guide flange portion 14. Are formed respectively. In addition, a cylindrical surface portion 17 is formed in a continuous portion of the flange portion 15 and the guide flange portion 14 so as to be freely inserted into the circular hole. On the other hand, the fixing screw 13 is formed by forming a screw rod 18 and a flange portion 15a similar to the flange portion 15 on both axial sides of a cylindrical surface portion 17a similar to the cylindrical surface portion 17. The main portion 12 and the fixing screw 13 constituting such a guide pin 8 are inserted into the circular hole from the opposite side of the both fixing plate portions 11, 11, and the screw rod 18, the screw hole 16, Are joined together by screwing together. In this state, both the cylindrical surface portions 17 and 17a are located in the circular hole.

  The moving bracket 9 is formed in a T-shaped cross section including a displacement plate portion 19 and a holding plate portion 20 by extruding an aluminum alloy. Of these, the base end portion (the upper end portion in FIGS. 6 and 9) of the displacement plate portion 19 allows the guide collar portion 14 of the guide pin 8 to be displaced in the axial direction (left and right direction in FIGS. 6 and 9). A circular through hole 21 to be inserted is provided. Such a displacement plate portion 19 is assembled between the fixed plate portions 11 and 11 of the support bracket 7 in a state where the guide flange portion 14 is inserted into the circular hole 21. At this time, the compression coil springs 10 and 10 are assembled in an elastically compressed state between the inner side surfaces of the fixed plate portions 11 and 11 and both side surfaces of the displacement plate portion 19. In this state, the displacement plate portion 19 is supported between the fixed plate portions 11 and 11 so as to be able to be displaced along the guide flange portion 14. Further, the displacement plate portion 19 remains at an intermediate position between the fixed plate portions 11 and 11 unless an external force is applied.

  The holding plate portion 20 is provided in a state of protruding from the front end edge of the displacement plate portion 19 (the lower end edge in FIGS. 6 and 9) to both sides in the horizontal direction. In the state where the glass panel wall structure is constructed, the leading edge of the displacement plate portion 19 projects to the outdoor side from between the pair of glass panels 1 and 1 adjacent to each other in the horizontal direction. The part 20 will be in the state which made the indoor side surface and the horizontal direction edge part outdoor side surface of these each glass panel 1, 1 oppose each other. Therefore, as shown in FIGS. 4 to 6 and 9, the indoor side surface of the holding plate portion 20 and the horizontal side edge outdoor side surface of each glass panel 1, 1 are connected to each other by a seal adhesive 22 that is a polymer elastic material. To join. Further, in the example shown in the drawing, the sealing adhesive material, which is a polymer elastic material, is also applied to the front edge of the fixed plate portions 11 and 11 and the inner side surface of the glass panel 1 and 1 in the horizontal edge. It joins by 22a.

Further, in the illustrated example, a rubber sheet or the like is provided at a portion facing the horizontal direction edge of each glass panel 1, 1 at both the indoor and outdoor intermediate portions on both sides of the displacement plate portion 19 and the vertical end portion. The buffer plates 23 and 23 are attached. In the event of an earthquake, the horizontal edges of the glass panels 1 and 1 meet the buffer plates 23 and 23.
In the case of this example, the seismic isolation device 3 as described above is provided only at the upper end portion and the lower end portion of the joint portion between the horizontal edge portions of the glass panels 1 and 1. In other words, the support member 4, the support bracket 7, and the moving bracket 9, which constitute the seismic isolation device 3, do not exist in the vertical middle portion of the joint. Therefore, in the case of this example, as shown in FIG. 7, only a sealing material 24 made of a polymer material having elasticity is provided between the middle portions in the vertical direction of the glass panels 1 and 1 adjacent in the horizontal direction. Yes. The width W (FIG. 7) of the gap between the glass panels 1 and 1 adjacent to each other in the horizontal direction, which is provided with the sealing material 24, is determined by the collision between the glass panels 1 and 1 in the event of an earthquake. It is preferable to make it as small as possible within a range that can be reliably prevented, including the part where the seismic isolation device 3 is provided.

According to the seismic isolation device for a glass panel of the present example configured as described above, the seismic isolation device 3 can be made inconspicuous while the performance of the seismic isolation device 3 is sufficiently ensured, and the earthquake is reduced. After that, the force which returns each said glass panel 1 and 1 to an original position is made to act.
First, the performance of the seismic isolation device 3 becomes better as the amount of displacement of the glass panels 1 and 1 relative to the housing 2 is increased. In the case of this example, this displaceable amount is such that each of the glass panels 1 and 1 with respect to the moving bracket 9 as shown in (A) → (B) of FIG. The displacement amount δ ₁ and the displacement amount of the moving bracket 9 with respect to the support bracket 7 as the moving bracket 9 is displaced along the guide pin 8 as shown in FIGS. This is the sum of δ ₂ (δ ₁ + δ ₂ ).

  That is, in the case of the structure of this example, when the displacement amount of the glass panels 1 and 1 with respect to the housing 2 is small due to a relatively small earthquake, the deformation state of each part is shown in FIG. It becomes like. In this state, the moving bracket 9 is held in a neutral position based on the elasticity of the compression coil springs 10 and 10, and based on the elastic deformation of the seal adhesive 22, the moving bracket 9 is Each glass panel 1 and 1 is displaced. In this state, the horizontal edge of any one of the glass panels 1 may hit the displacement plate portion 19 of the moving bracket 9. Even in this case, the glass panel 1 is based on the presence of the buffer plate 23. Can be prevented from being damaged.

On the other hand, when a large earthquake occurs, the amount of displacement of the glass panels 1 and 1 with respect to the housing 2 increases, and the deformation state of each part is as shown in FIG. In this state, the elastic deformation state of the seal adhesive 22 between the moving bracket 9 and the glass panels 1 and 1 remains the same as in the case of the relatively small earthquake shown in FIG. The moving bracket 9 is displaced relative to the support bracket 7 against the elasticity of any one of the compression coil springs 10 (the right side in FIG. 9). In this state, the displaceable amount of the glass panels 1 and 1 with respect to the casing 2 is the sum of the displacement amounts of each part (δ ₁ + δ ₂ ) as described above. For this reason, the large displacement which generate | occur | produces between the said glass panels 1 and 1 with respect to the said housing | casing 2 in the case of a big earthquake can be absorbed. In a state where a large earthquake has occurred, the elastic deformation amount of the seal adhesive 22a between the front end edges of the both fixed plate portions 11 and 11 and the inner side surfaces of the horizontal edge chambers of the glass panels 1 and 1 is large. Although it increases, even in such a state, the glass panels 1 and 1 are not damaged. As long as these glass panels 1 and 1 are not damaged, it is not a problem that the sealing adhesive 22a is damaged (it is within an allowable limit as damage during a large earthquake).

  Moreover, what is necessary is just to provide the said seismic isolation apparatus 3 in the up-and-down both ends of the horizontal direction both ends of each said glass panel 1, 1 as shown in FIG. Moreover, among the constituent members of the seismic isolation device 3, only the holding plate portion 20 of the moving bracket 9 is exposed to the outdoor side of the glass panels 1 and 1. Therefore, as is apparent from FIG. 1, the seismic isolation device 3 can be made inconspicuous in appearance, and the degree of freedom in design design of the glass panel wall structure is increased. And it is not necessary to cut | disconnect the horizontal direction edge of each said glass panel 1 and 1 non-linearly, and the processing of these each glass panel 1 and 1 does not become troublesome.

With respect to this point, the difference in effect from the case where the structure of the present invention is not adopted will be described with reference to FIGS. In the case of a general conventional structure, the horizontal end edges of the glass panels 1 and 1 are supported by a stand 28 as shown in FIG. In the event of an earthquake, as shown in FIG. 10B, the glass panels 1 and 1 and the stand 28 are relatively displaced in the horizontal direction. This relative displacement is allowed by elastic deformation of the sealing materials 29 and 29 (caulking material) made of a polymer elastic material, in which the side edges of the respective glasses 1 and 1 are coupled to the vertical 28. The seismic standards require that the relative displacement between the glass panels 1, 1 and the stand 28 performed in this way is allowed up to 1/100 of the width dimension of the glass panels 1, 1 at the maximum. ing. In the case of the structure shown in FIG. 10, the maximum amount of the relative displacement constitutes the side edges of the glass panels 1 and 1 and the stand 28 in the neutral state shown in FIG. It is regulated by the distance from the side surface of the leg portion 26 of the pressing edge 25. Then, in order to increase this distance, it is necessary to increase the width W ₂₇ of the cover portion 27 of the ridge 25, it becomes conspicuous this cover portion 27.

Further, if the distance between the side edges of the glass panels 1 and 1 and the side surfaces of the leg portions 26 of the pressing edges 25 constituting the stand 28 is increased in order to ensure the maximum amount of the relative displacement, the seismic isolation device is assumed. Even if the glass panels 1 and 1 are provided only in a part in the vertical direction, as shown in FIG. 11A, the interval W _a between the side edges of the adjacent glass panels 1 and 1 is The portion that is disengaged from the leg portion 26 also becomes large. As shown in FIG. 11B, if the distance between the horizontal side edges of the glass panels 1 and 1 is large at the part facing the leg part 26 and small at the part away from the leg part 26. , by narrowing the interval W _b of the glass panel 1, 1 adjacent to each other in the horizontal direction at a portion not provided with the ridge 25, but are trimmed appearance design of the glass panel wall structure, each of these glass panels 1,1 Processing becomes troublesome. Compared to the case where the conventional structure is applied in which such a trouble occurs, according to the structure of the present example, the glass panels 1 and 1 are adjacent to each other in the horizontal direction without subjecting the horizontal edges of the glass panels 1 and 1 to the trouble. By narrowing the space between the panels 1 and 1, the appearance design of the glass panel wall structure can be adjusted.

  Furthermore, in the case of the structure of the present example, the moving bracket 9 is supported by the elastic force of the two compression coil springs 10 and 10 with respect to the support bracket 7. Elasticity toward the neutral position is given to the support bracket 7 and the moving bracket 9 by the elasticity of 22a. In particular, the elasticity of the compression coil springs 10 and 10 and the elasticity of the sealing adhesive 22 provided between the glass panels 1 and 1 and the moving bracket 9 are considered in consideration of durability and reliability. Can be big enough. For this reason, after the earthquake is settled, a force sufficient to return the glass panels 1 and 1 to their original positions is positively applied to the glass panels 1 and 1. For this reason, the positional relationship between the glass panels 1 and 1 does not remain shifted due to the earthquake.

  In the illustrated example, the seismic isolation devices 3 are provided at both upper and lower ends of the horizontal edge portions of the glass panels 1 and 1. However, this seismic isolation device 3 can also be provided in the middle portion in the vertical direction of each of the glass panels 1 and 1 in relation to the requirements of the building owner regarding the appearance design of the glass panel wall structure.

The front view which looked at one part of the glass panel wall structure incorporating the seismic isolation apparatus which showed one example of embodiment of this invention from the outdoor side of the building. Similarly vertical side view. Similarly a cross-sectional plan view. The A section enlarged view of FIG. The B section enlarged view. The expanded CC sectional view of FIG. The expanded DD sectional drawing. The guide pin and the compression coil spring are shown, (A) is a plan view of the combined state, (B) is a partially cut plan view of the main part of the guide pin, and (C) is a plan view of the fixing screw. The figure similar to FIG. 6 which shows the behavior of the seismic isolation apparatus at the time of an earthquake occurrence. The figure similar to FIG. 9 which shows an example of a conventional structure. The partial front view of a glass panel for demonstrating the trouble which arises when this conventional structure is applied.

Explanation of symbols

1 glass panel 2 body (steel frame)
DESCRIPTION OF SYMBOLS 3 Seismic isolation device 4 Support member 5 Upper frame 6 Lower frame 7 Support bracket 8 Guide pin 9 Moving bracket 10 Compression coil spring 11 Fixing plate part 12 Main part 13 Fixing screw 14 Guide collar part 15, 15a collar part 16 Screw hole 17, 17a Cylindrical surface portion 18 Screw rod 19 Displacement plate portion 20 Holding plate portion 21 Through hole 22, 22a Seal adhesive material 23 Buffer plate 24 Seal material 25 Pushing edge 26 Leg portion 27 Cover portion 28 Vertical 29 Seal material

Claims (2)

  A seismic isolation device for a glass panel that supports a plurality of glass panels arranged on the same plane in a state where the edges of each other face each other close to each other so as to be able to absorb the shaking accompanying the earthquake, A supporting member supported by the casing along the edge of a pair of adjacent glass panels of the glass panels, and a pair of fixing plate portions spaced in the arrangement direction of both glass panels, Of the support members, a support bracket fixed to a surface of the glass panels facing a portion near one side edge, a guide pin spanned between the two fixing plate portions of the support bracket, and the guide A movable bracket disposed between the opposing edges of the two glass panels in a state in which the glass panels can be displaced in the arrangement direction of the two glass panels along the pins, and both sides of the movable bracket And an elastic member that urges the movable bracket to a neutral position, and the two glass panels are connected to the movable bracket with a polymer elastic force. Seismic isolation device for glass panels joined by materials.   The moving bracket has a displacement plate portion having a through hole at the base end portion through which the guide pin can be displaced in the axial direction, and a support bracket from between the edge portions of both glass panels at the distal end edge of the displacement plate portion. A cross-section T-shaped consisting of a pressing plate portion with a width direction intermediate portion coupled to a portion projecting to the opposite side, between the leading edge of both fixed plate portions and the one side edge portion portion of both glass panels And the seismic isolation apparatus for glass panels of Claim 1 which joined the other side edge edge part of the said both glass panels, and the said suppression board part with the polymer elastic material, respectively.

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